高中教案教案
發(fā)表時間:2020-05-22Computers(Period 4 Listening)教案。
經(jīng)驗(yàn)告訴我們,成功是留給有準(zhǔn)備的人。教師要準(zhǔn)備好教案,這是教師的任務(wù)之一。教案可以讓學(xué)生能夠在課堂積極的參與互動,幫助教師緩解教學(xué)的壓力,提高教學(xué)質(zhì)量。你知道如何去寫好一份優(yōu)秀的教案呢?小編特地為大家精心收集和整理了“Computers(Period 4 Listening)教案”,僅供參考,希望能為您提供參考!
Period4Listening
TheGeneralIdeaofThisPeriod:ThisperiodincludeslisteningandwritingonPage21;listeningonPage55andlisteningtaskonPage58.Apparently,thepurposeofthisperiodistotrainthestudents’listening—forinformation;forcomprehensionandforlanguage.Meanwhile,thestudentswillbetrainedtoexpresstheirownopinionsafterlistening.TeachingAims:1.Helpthestudentstolearnabouttheknowledgeofinformationtechnology.2.Enablethestudentstogetthemainideasofthelisteningmaterials.TeachingImportantandDifficultPoints:1.Howtogetthemainideaandinformationindetails.2.Expresstheirownopinionsafterlistening.TeachingMethods:1.Task-basedlearning.2.Cooperativelearning.TeachingAids:1.Ataperecorder.2.Amultimedia.TeachingProcedures:Step1RevisionCheckthestudents’interviews.Getthestudentstoworktogetherwiththeirpartnerstointervieweachother.Step2Listeningandwriting(Page21)Task1ListentoaconversationT:Class,asweallknow,the21stcenturyisthecenturyofinformationandtechnology.NextwewilllistentoaconversationaboutdifferentkindsofinformationtechnologyorIT.Andasweknow,eachkindofinformationtechnologyhasitsownadvantagesanddisadvantages.Sofromthisconversationwewilllistenfortheadvantagesanddisadvantagesofeachone.Butbeforelisteninglet’sfirstlookatthepicturesonPage21andtheformonPage22tomakesurewhatyouaregoingtodowhilelistening.OK,let’sbegin.Thestudentslistentotheconversationforthefirsttime.Task2DiscussionandfillingT:YoucanseethereareaTV,aCD-ROM,acomputer,aradio,aDVDandnewspaperhere.Nowtrytofinishfillingintheformwiththeinformationyouhavejustgotfromtheconversation.Suggestedanswers:TypeofIT
Advantages
Disadvantages
TV
Youcanbothlistenandwatch
Youcan’twritetofriends
Web
Youcanfindinformation
It’sveryexpensive
Radio
YoucanlistentoEnglish
Youcannotwatch
Book
Youcangetinformation
Sometimesitisout-of-date
T:Now,let’sdiscusstheadvantagesanddisadvantagesofeachtypeofITinsmallgroupsandthendecidewhichtypeofITisbestforyoutouse,accordingtotheformaboveandexplainthereasons.Whilediscussing,remembertousethefollowingexpressions:Ithinkthat...Inmyopinion...Ibelievethat...Iagreebecause...Idisagreebecause...I’vedecidedthat...Step3Listening(Page55)T:NowcometothelisteningonPage55.Beforeyoulistening,pleasereadtherequirementsofEx.1.Afterthat,youwillfindthethreerobotsfromthepicturesaboveonPage55andnumberthem.Thepossiblenumber:Picture1—No.3Picture3—No.2Picture4—No.1T:NowpleaselookattheseboxesonPage55beforeyoulistentothetapeagain,andtrytofindoutthelisteningpoints.Paymoreattentiontothesepointsandyoumaymakesomenoteswhilelistening.Threeminuteslater.T:Nowtrytofillintheboxeswiththeinformationfromthelisteningmaterial,andthencheckyouranswerswithyourpartners.Suggestedanswers:Personalrobot
Information
Size
!--?xml:namespaceprefix=st1ns="urn:schemas-microsoft-com:office:smarttags"/--35cm
Whatitlookslike
Robotwithfivearms
Whatitcando
Allhomework
Price
50yuanaday
Bird-likeandroid
Information
Size
10cm(Dg15.CoM 工作總結(jié)之家)
Whatitlookslike
Bird-likeandroid
Whatitcando
Singsbeautifully
Price
600yuan
Lonelyandroid
Information
Size
2m
Whatitlookslike
Large,energeticrobot
Whatitcando
Climbsmountains;playsguitar;singskaraoke
Telephonenumber
Room-1234
Step4Listeningtask(Page58)T:NowpleaseturntoPage58,andfinishthelisteningtask.Asweknow,computersareusedwidelyandputintoandroids.Pleaselookatthepicturesabove.Therearetwoandroidsinit.Oneworksasamaid.Theotherworksinacarfactory.Theyarefriendsandtheyweremadeatthesametime.Nowtheyaretalkingabouttheirlivesandwhatitfeelsliketobeandroid.OK,pleaselistencarefullytotheirproblemsandfillintheform.I’llplaythetapetwice.Afterlistening.T:Trytofillintheformsasquicklyasyoucan,andthenwewillchecktheanswersinclass.SuggestedanswersSallyandBrenda’sproblems
Abouttheirjobs
Theirprogrammerdecidedthem
Aboutchangingtheirjobs
Theyarenotabletochangejobs
Aboutwhodecidestheirfuture
Theirprogrammerdoes
Abouthowtheyaredifferentfrompeople
Theycannotsmell,laugh,taste,oreatfood
Abouthowtheyarethesameaspeople
Theyenjoyfootball
T:Fromwhatwehavejustlistened,weknowthatSallyandBrendahavesometroublesintheirlives.Theyaretreatedbadly.Nowyouaregoingtomakealistoftherightsthatandroidsshouldhavesothattheywillbetreatedbetter.Youcanworkwithyourpartnersandhavediscussion.Suggestedanswers:1.Theyshouldbeabletochoosetheworktheydo.2.Theyshouldhavetheirowntime.3.Theyshouldbeabletochangetheirjobs.4.Theyshouldbeabletodecidetheirownfuture.5.Theyshouldbeabletotaste,smell,feel,etc.Step5AssignmentT:Class,Ireallyappreciateyourgoodperformanceinthislisteningclass.Icanseethatyourlisteninghasgreatlyimprovedsinceyoucametotheseniorschool.Keeponyourgoodwork!OK,wehavenotimeleft.I’dliketoassignyousomehomeworktodo.1.GooverthelisteningandwritingonPage21andgetreadyforthewriting.Step6TheDesignoftheWritingontheBlackboardUnit3Computers
Period4
TypeofIT
Advantages
Disadvantages
TV
Youcanbothlistenandwatch.
Youcan’twritetofriends.
Web
Youcanfindinformation.
It’sveryexpensive.
Radio
YoucanlistentoEnglish.
Youcannotwatch.
Book
Youcangetinformation.
Sometimesitisout-of-date.
Personalrobot
Information
Size
35cm
Whatitlookslike
Robotwithfivearms
Whatitcando
Allhomework
Price
50yuanaday
Bird-likeandroid
Information
Size
10cm
Whatitlookslike
Bird-likeandroid
Whatitcando
Singsbeautifully
Price
600yuan
Lonelyandroid
Information
Size
2m
Whatitlookslike
Large,energeticrobot
Whatitcando
Climbsmountains;playsguitar;singskaraoke
Telephonenumber
Room-1234
Step7RecordafterTeaching相關(guān)推薦
Theme parks教案Period 4 Listening
Themeparks教案
Period4Listening
TheGeneralIdeaofThisPeriod
ThisperiodconsistsoflisteningintheUsingLanguagepart,listeningandlisteningtaskintheWorkbook.Itaimsattrainingthestudents’listeningskills—gettinggeneralideaanddetailedinformationandgraspingthekeyinformationtohelpthestudentsfinishtherelativeexercises.Alsointhisperiodthestudentscanmeetthethemeofthisunitagain.?
Theteachershouldmakesurethestudentsreadthequestionstofindouttherequirementsfirst.Thisistosharpentheirattentiontogetthegistofthetextandspecificinformationforthequestions.Whiledoingtherelatedexercises,thestudentscanworktogetherwiththeirpartnersontheiranswers.?
TeachingImportantcooperativelearning.?
TeachingAids?
Ataperecorder,amulti-mediacomputerandablackboard.?
ThreeDimensionalTeachingAims?
KnowledgeandSkills?
Helpthestudentsimprovetheskillstolistenforgeneralideaanddetailedinformation.?
Helpthestudentsimprovetheirlisteningapproaches.?
ProcessandStrategies?
Individualworktofinisheachtask.?
Theteachermayplaythetapeafewmoretimestomakethestudentshearclearly.?
FeelingsandValue?
Notonlyarethestudents’listeningskillstrained,butalsotheywilllearnalotaboutthemeparksallovertheworld.?
TeachingProcedures
Step1Listening(Page37and38)?
T:Hello,everybody!Lastclasswelearnedalotabouttwothemeparksbyreading.Andinthisclasswearegoingtolearnaboutanotherthemeparkbylistening.PleaseopenyourbooksandturntoPage37.Beforeyoulistentothetape,youwillbegiventwominutestoreadtherequirementsandthequestions.AndI’dlikeyoutopredictwhatthislisteningpassagetalksaboutfromthequestions.?
(Twominuteslater.)?
T:OK,whowouldliketotellwhatthislisteningpassagetalksabout?Volunteers!?
S:Iguessthislisteningpassageisaboutaculturethemepark,inwhichdifferentculturalgroupsarementioned.?
T:Yeah.Thelisteningtextintroducestoawell-knowntouristattractioninChina-FolkCultureVillagesinShenzhen,whichshowsthehomes,templesanddressoftwenty-oneethnicgroupsinChina.FromthelisteningtextwewilllearnhowsomeoftheminoritynationalgroupsofChinaliveandwhattheircustomsare.?
NowI’llplaythetapeforyoutolistentoforthefirsttime.Afterlistening,youwillmatcheachnationalgrouptoanexampleofitscustoms.Payattentiontotheimportantinformationwhilelisteningandyou’dbettertakesomenotesofit.?
(Studentslistentotherecordingforthefirsttime.)?
T:Haveyougottheanswers?Let’schecktheanswerstogether.?
Possibleanswers:?
T:Let’slistentothetapeagainandanswerthequestionsinPart2.Youmaylistentoittwice.?
(Studentslistentotherecordingforanothertwotimes.)?
T:Pleasechecktheanswerswithyourpartnersfirst,thenwe’llchecktheanswersinclass.?
Suggestedanswers:?
1.Twenty-oneculturalgroupsarerepresentedinthethemepark.?
2.Therearetwenty-fourvillagesinthethemepark.?
3.Rickyissohungrybecausethegroupgotuptooearlyforhimtohavebreakfast.?
4.Naxi,Bai,MiaoandDaigroupsarementionedinthepassage.?
5.TheguidesaystheymustseetheUyghurdancingandheartheDaisinging.?
6.LucywantstobuyMiaoclothforhermother.?
7.Thethemeparkcontainsplants,temples,bridgesandhousesotherthanpeople.?
8.Rickywillwanttoeatagain.?
T:Haveyougotthemright??
Ss:Almostallright.?
T:Goodjob!?
Step2Listening(Page69)?
T:Let’scometothelisteningonPage69.HerewearegoingtolistentoDavidEvensandJiYangwhoarevisitingtheSeaWorldontheGoldCoastinNortheastAustralia.HaveyoueverbeentoSeaWorld??
Ss:Yes.?
T:WhatcanyoudoinSeaWorld??
Ss:Wecanfeeddolphins.?
Wecanplaywiththepolarbears.?
Wecanwatchseaanimalsdoperformances.?
Wecangodivingtoseefish.?
Wecanlearnaboutdifferentkindsoffishandseaweed.?
Wecangosurfingonthesea.?
T:Good.Let’slistentotherecordingabouttheSeaWorldinAustralia.Afterlistening,ticktheitemsinthelistofwhatpeoplecandointhispark.Areyouready?Let’sgo.?
(Thestudentslistentotherecordingforthefirsttimeandfinishtheexercise.)?
T:Haveyougottheanswers?Whatitemsinthelistcanpeopledointhispark??
S:Iheardfromthetapethatpeoplecanfeedthedolphins,goonarollercoaster,godivingtoseefishandlearnaboutarescueprogramme.?
T:Areyouranswersthesameashers??
Ss:Yes.?
T:Let’slistentothetapeagainandtrytoanswerthequestionsinPart2.Pleasereadthequestionsfirst.?
T:OK,let’skeepthethreequestionsinmindandtrytofindtheanswerswhilelistening.Areyouready?Let’sgo!?
(Theteacherplaysthetapeforthestudentstolistentoagain.)?
T:Pleasechecktheanswerswithyourpartnersfirst.Nowlet’schecktheanswersinclass.Whoaregoingtoanswerthefirstquestion??
S:I’lldoit.ThethingsJiYangwouldliketodoare:Hewantstofeedthedolphins,watchthemdotrick,watchthewaterskiing,seethepolarbear,andgodiving.?
S:I’mgoingtoanswerthesecondquestion.Itisexpensivebecausethepolarbearsneediceandcoldwater,buttheSeaWorldisinahotclimate.?
S:Letmeanswerthelastquestion.Itisnotanamusementparkonly.Itofferseducationalprogrammesaboutmethodsofrescuingseaanimals,birdsandfish.?
T:Quitegood!Youarereallyimprovinginlistening.
Step3ListeningTask(Page73)?
T:Let’sturntoPage73andgoontodotheListeningTask.Forthistask,wearegoingtolearnhowtobuildadugoutboatandhowtomakeahouseofpalmleaves.Areyouinterestedinmakingthingsbyyourselves??
Ss:Yes.?
T:Great!Youwillbeabletodoitafterdoingthelistening.?
T:Let’sfindouthowtobuildadugoutboatfirst.Whilelistening,youneedtopayattentiontothematerialsyouneed,thesteps,themethodofmakingapersonsitinit,andthemethodofmakingtheboateasilygothroughthesea.Areyouclearaboutwhattodonow?Wewilllistentoitthreetimes.Whilelisteningforthefirsttime,pleasetrytogetthegistoftheinformation;thesecondtime,youcantrytofillintheinformationonthechart,andthirdtime,youmaycheckyouranswers.?
(ThestudentslistentotherecordingforthreetimesandfillinthetableinPart1.)?
T:Nowlet’scheckyouranswerstogether.?
Suggestedanswers:?
Howtobuildadugoutboat
Materialsyouneed:Averytallstraighttree
Firststep:Cutdownthetreeandremovethebranches.
Secondstep:Cutthetreeopenandgettwolongpiecesofwood;useonetomaketheboat.
Methodofmakingapersonsitin:Removetheinsideforapersontositin.
Methodofmakingtheboateasilygothroughthesea:Takethebarkofftheoutsideoftheboatandputoilonit.
T:Let’scometothebuildingofpalmleaves.Whilelistening,weneedtopayattentiontothemethodofjoiningthepalmleaves,thenumberofareaforsides,howtojointhesidesofthehousetogether,thenumberofareasfortheroof,andhowtojointherooftowalls.Withthefivequestionsinmind,let’sbeginlistening.PleasedoaswedidinPart1whilelistening.?
(StudentslistentotherecordingfortwotimesandcompletethechartinPart2.)?
T:Haveyougottheinformationtocompletethesecondcolumnofthechart?Let’schecktheanswerstogether.?
(Teachercheckstheanswerswithwholeclass.)?
SuggestedanswerstoExercise2:?
Howtomakeahouseofpalmleaves
MethodofjoiningleavesWeavethemtogether.
NumberofareasforsidesFour.
HowtojoinsidesJoinonesidetoanothersidebyweavingleavesatrightanglestogether.
NumberofareaforroofTwo.
HowtojoinroofstowallsPutthetwosidesoftheroofontopofthefoursides.
Step4Conclusionandhomework?
T:We’vedonemuchlisteninginthisperiod.Thoughwefeelalittletired,wehavemademuchprogressinlistening.
Asforyourhomework,youcanpreviewthewritingandthespeaking.Nowit’stimeforabreak.Bye,boysandgirls.?
TheDesignoftheWritingontheBlackboard
Unit5Themeparks
Period4Listening
1.China-FolkCultureVillages?
2.TheSeaWorld?
3.Howtobuildadugoutboat?
4.Howtomakeahouseofpalmleaves?
RecordafterTeaching
ActivitiesandResearch
ThestudentsmaycollectsomeinformationaboutthemeparksontheInternetafterclassandtrytodescribethemtotheirclassmates.Thisactivityaimsatentertainingthestudentsaswellastrainingtheirlisteningability.?
ReferenceforTeaching
LearningTips?
英語聽力技巧?
1.學(xué)會預(yù)測?
預(yù)測是在做聽力理解之前根據(jù)各種暗示,如所給答案選項(xiàng),段落或?qū)υ挊?biāo)題等已有知識,對即將聽到的段落或?qū)υ拑?nèi)容進(jìn)行預(yù)測。?
(1)從答案選項(xiàng)中預(yù)測?
Q:WhatdoesTomdo??
A.He’satruckdriver.B.He’sashipcaptain.C.He’sapilot.?
錄音原文:?
W:TomflewtoAnchoragelastnight,thentooksomepassengersfromtheretoDollas.?
M:Yeah,buthecouldn’tlandbecausetheairportinDollaswassnowedin.?
從選項(xiàng)看,問題應(yīng)是關(guān)于職業(yè)方面的,再從flew,passengers,airport這些信息詞中可知道Tom的職業(yè)。?
(2)從說話人口氣預(yù)測?
在A,B兩人的對話中,如果B是附和或贊成,往往說“Yes”,“Iagree”,“Sure”,“Ithinkso”等。但如A用否定句,B表同意時則用“No”,“Neither/Nor...”等。例如:?
A:Harveydoesn’tseemtofitintothisclass.?
B:No,heisreallyafishoutofwater.
2.做簡要筆記?
聽錄音時快速、準(zhǔn)確、簡要地記下有關(guān)信息(包括數(shù)字,人名,地名,關(guān)鍵詞),前提是不要影響跟聽速度,采用自己習(xí)慣的符號。?
例:Howmuchwillthemanpayforthetickets??
A.B.C.?
錄音原文:?
W:Ticketsforthemovieareforadults,halfpriceforchildren.?
M:Allright,I’dlikethreeticketsforadultsandtwoticketsforchildren,please.?
筆記可簡化為:A(代表adult),C(代表child),3A+2C或6A(3)+halfChildren(2)
3.聽清數(shù)據(jù),簡要記下,加以運(yùn)算?
在獲取時間信息時,不要誤把會話中提到的時間簡單確定為問題的答案。高考聽力考查時間時往往要進(jìn)行簡單的時間換算。?
AtwhattimedoesthetraintoLeedsleave??
A.3:00B.3:15C.5:00?
錄音原文:?
W:Excuseme,couldyoutellmewhenthenexttraintoManchesteris??
M:Sure.Well,it’s3now.ThenexttraintoManchesterleavesin2hours,butyoucantakethetraintoLeedswhichleavesin15minutes,andthengetoffatManchesterontheway.?
對話中提到了三個時間It’s3now,in2hours,in15minutes.現(xiàn)在是3點(diǎn),開往Manchester的火車要兩小時后才開,即ThetraintoManchesterleavesin2hours。若簡單機(jī)械地把3點(diǎn)和2點(diǎn)相加,會得出火車5點(diǎn)才開的錯誤選項(xiàng)C。?
數(shù)字類問題分辨別類和計(jì)算類兩種:?
(1)要注意區(qū)分-teen和-ty及four和five的發(fā)音;辨別多位數(shù),如電話號碼,門牌等?
(2)計(jì)算時間,錢款,距離,年齡,人或物的數(shù)量等;聽出數(shù)字間的關(guān)系,更要聽清問題,因?yàn)閷\(yùn)算方法的要求通常寓于問題中;注意more,less,asmuch(many)as,another,double,acoupleof,to,past,quarter;記住時間是60進(jìn)制?
如出現(xiàn)幾個數(shù)字,應(yīng)注意鑒別問的是那一個。?
例:Atwhattimedoestheofficeopen??
A.At8:15.B.At8:30.C.At7:45?
從常識判斷,辦公時間往往以整點(diǎn)開始,而不會在幾點(diǎn)幾分。?
聽力原文:?
M:Iwonderwhytheofficeisstillnotopen.?
W:Butit’snotyeteight.Infact,it’sonlyaquartertoeight.
4.抓住關(guān)鍵,對癥下藥?
聽力考試常出現(xiàn)以Where提問的問句,考生要通過對話的具體情節(jié)和背景判斷對話發(fā)生的地點(diǎn)。一般來說,特定場景的用語和關(guān)鍵詞是基本固定的,考生要對此多了解,熟悉明白。在遇到Wheredoestheconversationtakeplace?/Wheredoessb.work?/What’shisjob?之類的問題時,就會派上用場。如:?
restaurant:menu,bill,order,tip,hamburger,beer,soup?
hotel:luggage,singleroom,doubleroom,roomnumber,checkin(out)?
hospital:takemedicine,temperature,pill,headache,fever,examine?
postoffice:mail,deliver,stamp,envelope,parcel?
airport:flight,takeoff,land,luggage?
railwaystation:roundtrip,singletrip,sleepingcar?
store:onsale,size,wear,colour,style,price,change,bargain,fit?
school:professor,exam,course,term,dininghall,playground?
library:librarian,renew,date,shelf,magazine,seat?
對于前五道簡短對話,要根據(jù)問題的類型,從第二個講話者的答語中來捕捉關(guān)鍵詞。?
如:What’sthemangoingtodo??
A.Runtotheairport.B.Waitforanotherbus.C.Hurrytogetthenextbus.?
根據(jù)選項(xiàng)看,對話似乎與bus有關(guān),主要信息捕捉范圍是在“Hurry”或“Run”和“Wait”之間。聽音范圍明顯縮小。?
錄音原文:?
M:Excuseme,canyoutellmewhenthenextbusleavefortheairport??
W:Itleavesinthreeminutes.Ifyourun,youmightcatchit.?
關(guān)鍵詞“run”和“catch”正好對上答案C的“Hurry”和“get”。
5.較長對話和短文的理解?
抓聽首句和首段有助于整體理解文章?
結(jié)尾部分所給出的信息不一定是題目的正確答案,可能只是一個陷阱?
推理思路要正確?
語境中抓要點(diǎn)?
獨(dú)白部分(即第十段材料)可分為四種類型:?
*人物與故事型:敘述人物的經(jīng)歷和成就,要抓住故事發(fā)展線索,所問問題多屬事實(shí)細(xì)節(jié)題
*普通知識型:內(nèi)容涉及面較廣,問題以事實(shí)細(xì)節(jié)題居多?
*社會科學(xué)型:涉及到文化教育,社會治安,代溝問題,就業(yè)問題,婦女問題,人口問題,環(huán)境保護(hù),國家發(fā)展等。問題常涉及獨(dú)白的主題或題目,故需作推理判斷。?
*科普知識型:主要涉及自然科學(xué),如生物,物理,海洋,計(jì)算機(jī),醫(yī)學(xué),氣象,科學(xué)發(fā)明等。如遇技術(shù)詞匯和術(shù)語,可利用語境線索猜詞義。
6.果斷選題,學(xué)會放棄?
相信第一感覺,當(dāng)機(jī)立斷,決不能反反復(fù)復(fù),甚至影響后面的答題?
切記不可因某個小題未聽懂而患得患失,不可因一題失多題,造成一步跟不上,步步踏空的結(jié)果。
Unit 3 Computers教案(Listening, Speaking and Writing)
Unit3Computers
Listening,SpeakingandWritingGOALS:1.Topractiselisteningcomprehension.2.Topractisemakingdecisionsandreasoning
TEACHINGPROCEDURES:Step1.revision1.checkthehomeworkexercises.1).Ithasbeenreportedthatchildrenwillbeofferedfreeeducation.Ithasbeenreportedthatfreeeducationwillbeofferedtochildren.2).Ithasbeensaidthatwewillbeofferedthelatestcomputersciencecoursebook.Ithasbeenplannedthatthelatestcomputersciencecoursebookwillbeofferedtous.3).IhavebeentoldbyPeterthatIwillbelenthisnotebookcomputerforaweek.IhavebeentoldbyPeterthathisnotebookcomputerwillbelenttomeforaweek.2.Question:Whatcancomputersbeusedas?Step2.Lead-inAsweknow,scienceandtechnologyisdevelopingveryfastandcomputershavebecomesmallerandsmaller.Theyhavebeenusedinmanyfields.So,the21stcenturyisthecenturyofinformationtechnologyWhatdoesitmean?Doesinformationtechnology/ITonlymeanthingslikecomputers?Ofcausenot.Actually,itmeansmorethancomputers.ComputersarejustonekindofIT.WhatelsedoyouknowispartofIT?(TV,radio,CD-ROM,DVD,books……)Step3.Listening(SB)1.Pre-listening:WhatarethechangesbroughtbydifferentformsofIT?Whataretheadvantagesanddisadvantagesofthem?2.While-listening:Gothroughthechartandmakesurethestudentslookatthechartbeforetheylistentothetape.(Thisistosharpentheirattentionandlistenfortheanswers.Thiswillalsohelpthemgetthegistofthetext.)ThenListentothetapeandfinishfillinginthechart.(Ifnecessary,playthetapeforseveraltimes.)Say:Afterlisteningtotheirtalk,weknowallkindsofIThavebothdisadvantagesandadvantages.Let’schecktheanswerstogether.TypeofITAdvantagesDisadvantagesTVYoucanbothlistenandwatch.Youcannotwritetofriends.WebYoucanfindinformation.Itisveryexpensive.RadioYoucanlistentoEnglish.Youcannotwatchafilm.BookYoucangetinformation.Sometimesitisoutofdate.
3.Post-listening:1)(pairwork):decidewhichtypeofITisbestforyoutouserightnow.Makeyourchoiceandgiveyourreasonsbyusingthefollowingexpressions.Ithinkthat….Inmyopinion,….Ibelievethat….Iagreebecause….Idisagreebecause….I’vedecidedthat….2)(groupwork):Discussion:Computersareusefulandhavebroughtuslotsofgoodthings,buttheyalsocausebadeffects.Whatattitudeshouldwehavetowardsthecomputer?(Makegooduseofitbutnevergettrappedbyit.)Step4.Speaking1.Pre-speakingSay:Fromwhatwehavelearn,weshouldadmitthatcomputersandthewebhaveagreatinfluenceontheschooleducationaswellaspeople’slife.Ithascomeintopeople’severydaylifeandmanyfamiliesholdcomputersintheirhomes.Nowthereisataskforyou.2.While-speaking1)Situation:Youhavebeenaskedbyyourparentstohelpchoosecomputersforyourhome.Youandyourfriendhavelookedatseveralcomputers.Talkaboutthespecialthingseachcomputercando.Makeadecisionaboutwhichkindofcomputertobuyandexplainwhy.Informationinput:Showstudentssomepicturesofdifferentcomputers(desktopcomputer&laptopcomputer&…)Languageinput:Usefulexpressions(Repeatittostrengthenstudents’abilityofuseit.)SupportinganopinionChallenginganopinionIthinkthat…,because…Perhaps,butwhatif/about…?First,…Haveyouthoughtabout…?Onereasonisthat…Whatmakesyouthinkthat…?Ithinkitisbetterbecause…Idon’tlikeitbecause….(Pairwork)Usetheexpressionstosupportyouropinionorchallengingother’sopinions.2)Oralreport:(individualwork)Doanoralreporttoyourfatherandstartyourreportlikethis:Ilookedatmanydifferentcomputers.TheoneIhavechosenisthePEPpersonalcomputer.Oneofthemainreasonsisthatitissuitableforhomes.Ifoundthat…3.Post-speakingConclusion—Whatusefulexpressiondoweusetomakeadecisionandreason?(Inthisway,theycanreviewandusethewordsandphrasesagain.)Step6Pre-writingSay:Imaginewhatproblemsanddelightsthisandroidmighthavetodealwithwhileitisservingyou.Tryyourselfinsomeoneelse’sshoesisanimportantwayofunderstandinghowotherpeoplefeel.Thendiscuss:Youareanandroid.Youworkforafamilywithonechildwhoisveryspoiled.Theparentswantyoutodoeverythingforthem.Theparentsarenice,buttheyoftenaskyoutowatchovertheirchild.Howdoyoufeel?Whatwouldyoudoifthechildaskedyoutodohis/herhomeworkforhim/her?Wouldyouevertellthechild“no”?Step7WritingSay:Writeapassageabouttheresultofyourdiscussion!Itshouldcontain:Whatdoyouhavetodo?Whatisthechildlike?Whatistheparents’requirementofthechild?Whatdotheparentswantyoutodo?Whatdoesthechildwantyoutodo?Thenwhatwillyoudo?Howdoyoufeel?Samplewriting:Helloeverybody,mynameisLiuYan.Iama321modelandroid.IworkfortheLifamily.MrandMrsLiworkveryhardtoo.MrLiisanarchitectanddesignsgreattallapartmentblocks.MrsLiisadoctorandhastolookaftermanypatients.IrememberalltheplansforMrLisprojectsandcantellMrsLiwhichdrugsarethebesttogiveanyparticularpatient.AndIalsolookaftertheirlibrary.Istoreallthebooksthattheyborrowfromtheirschoolorfriendsinmybrain.Ofcoursemybrainisaslargeasamountain,soworklikethatisnotroubletome.Ireallyeatbooksjustlikepeopleeatfood.TheLishaveachildwhoisveryspoiled.HeneedsmetorememberallhisschooltextbookssothatIcandohishomeworkforhim.Hejustgivesmetheinformationonthesubject,whathastobedoneandthepagenumbersandIgetonwithitwhileheenjoyshimselfwithhisfriends.SometimesIdontthinkitisrighttodohishomeworkforhim—itssomewhatcheating.However,hisparentsareveryconcernedatthepressureofworkinschoolthesedays.Thechildhastoomuchhomeworktodo.Theylikehimtogotothekeyschoolbuttheyalsowanthimtobeabletohavehobbies,learntoswimandkeepfit!Poorchild!Sotheyconsidermethemostimportantpersoninthefamilyafterthemselves.Iamalwaysintroducedtotheirfriendsandplaywithvisitingchildren.Iamtheperfectfamilyacademicaidand,althoughIwasnotcheaptobuy,MrLisaysIwaswortheveryyuan!Step8AssessmentGetthestudentstoassesstheirwritingabilityaccordingtothefollowingthequestions:1.Isyourcompositionwelldeveloped?2.Areyourideaswellorganizedtothepoint?3.Doyouhaveagoodchoiceofwordsandidiomsinyourwriting?4.Doyougetagoodmasteryofcomplexstructuresoflanguage?5.Whatkindofmistakeshaveyoumadeinyourwriting?Step9:HomeworkWriteaboutyourdiscussion.Youmaybeginlikethis:Hello,everyone.Mynameis___.I’m321modelandroid.IworkfortheLifamily….Great scientists Period 3?Listening and Speaking教案
Period3ListeningandSpeaking
TheGeneralIdeaofThisPeriodThisisthethirdperiodofthisunit.Atthebeginningofthisperiod,theteachershould(can)designsomeexercisestoreviewwhatthestudentslearnedinthelastperiod,thatistosay,gooverwhatthestudentslearnedaboutthatJohnSnowdefeats“KingCholera”.Theteachercanbeginwithaskingsomequestionsorhavingacompetitiontomakesomesentenceswith“JohnSnow”accordingtothepassage.Duringthisperiod,listeningandspeakingwillbemainlydealtwith.Atthebeginning,teachersfocusontrainingtheSs’listening.ThislisteningcontentisabouttheimportanceofQianXuesenforspacetravelin!--?xml:namespaceprefix=st1ns="urn:schemas-microsoft-com:office:smarttags"/--China,thecontributionsmadebyabotanistnamedCarlLinnaeusandtheresearchintothelifeandworkofamathematiciancalledLeonhardEuler.?WhentrainingtheSs’listeningability,teachersshouldstartwithpre-listening,thatis,lead-in.Ifitisnecessary,teachershadbetterintroducesomebackgroundknowledgeaboutthelisteningmaterial.Later,lettheSslistentoit.Atthesametime,teachersshoulddesignsomesimplequestions.Afterthat,theSshaveknownaboutthelisteningmaterial,andthenteacherscanaskthemtolistentoitagaintobereadyformoredifficultquestions.Ifnecessary,theSscanbegivenanothertimetolisten.Whilepracticing,teachershadbetterofferstudentssomeadviceonhowtodoitwell.Especially,trainthestudentstopredictwhattobetalkedaboutaccordingtothehintsandlimitedinformationandletthemformthegoodlisteninghabitoflisteningwiththepurposeoffindingusefulinformationandtosummarize.Certainly,supposetherearemanynewwordsandexpressions,teachersshouldhelpthemtodealwiththematthefirstplace.Allthelisteningpracticeshouldfocusondevelopingthestudents’listeningskill.Afterpracticinglistening,theSsareexpectedtolearnsomeexpressionsabouttalkingaboutscientificjobaswellasscientists’achievementsandrecountstories.Besidesthose,thestudentsareexpectedtolearntheskillofdescribingaperson.Duringthecourse,teachersshouldrankclassactivitiesfromtheeasytothedifficult.First,askthemtolearntheexpressions.Then,askthemtoimitateittohaveadialogue.Finally,thestudentsareexpectedtocreateadialogueordiscussthegiventopic.Inordertodrawstudents’attention,theteacherhadbetterprepareforsomeinterestingsituations.Thisperiodcentersonemphasisonspeakingandlistening.Theteachershouldtryhisorherbesttoencouragethestudentstosaysomething.Don’talwayscorrectthemistakesthatthestudentswouldmakewhilespeaking.Otherwise,thestudentswouldfeelreluctanttospeakouttheiropinions.TeachingImportantPointsTrainthestudents’speakingabilitybydescribing,talkinganddiscussing.?Helpthestudentsimprovetheirlisteningability.?TeachingDifficultiesTrainthestudents’listeningability.Especiallylistenandunderstandwhatthespeakers?meanbeyondwords.?TeachingAids?ataperecorder,aprojectorandtheblackboard?
ThreeDimensionalTeachingAimsKnowledgeaims:LettheSsknowaboutsomescientistsandtheirlifeandcontributions.?GettheSstolearnhowtotalkaboutscientificworkandhowtodescribeaperson.?AbilityAims:?Trainthestudents’speakingabilitybydescribing,talkinganddiscussing.?Trainthestudents’listeningability.?EmotionalAims:?Trainthestudents’abilitytocooperatewithothers.?Encouragethestudentstolearnfromscientiststoshowinterestinscientificexplorationandresearch.?
TeachingProcedureStep1GreetingT:Hello,boysandgirls.?Ss:Hello,MissWang.?Step2Revision?T:Todaywewillbeginourlessonwithacompetitionbetweengroups.Inthelastperiod,welearntaboutJohnSnowwhodefeats“KingCholera”.Now,pleasesaysomethingthatyouknowaboutit.Ifyouofferacompletesentence,youwillbegiventenmarks.Yourgroupwillbegiventwentymarkswhenyourexpressionisespeciallybeautiful.?S:JohnSnowwasawell-knowndoctorinLondon,whoattendedQueenVictoriatoeasethebirthofherbabies.?S:Hebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera,whichwasthedeadlydiseaseofhisday.?S:JohnSnowgotinterestedintwotheoriesexplaininghowcholerakilledpeople.?S:Hebelievedinthesecondtheorythatispeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.Fromthestomachthediseaseattackedthebodyquicklyandsoontheaffectedpersonwasdead.Ss:...?(Theteachershouldencouragemorestudentstojoininthecompetition.Attheendofthecompetition,theteachershouldannouncetheresultofthiscompetition.Praisethewinnerandencouragethelosers.)?T:WhatcanwelearnfromJohnShow??S:Weshouldbaseourtheoriesonpractice.?S:Weareinspiredtohaveaspiritofscientificexploration.?S:Wedosomeresearchwiththepurposeofservingthepeopleandsociety.?Ss:...?T:Yes,wecanlearnalotfromthescientist.Infact,thereareagreatnumberofpeopleworkingonscienceworthyofbeinglearnedbothathomeandabroad.Canyounamesomescientistsandintroducetheirmaincontributions??S:Archimedes,whodiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat.S:Darwinwroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged.?S:MadamCuriediscoveredradium.?S:StephenHawkingputforwardatheoryaboutblackholes.?S:Zhanghenginventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened.Ss:...T:Youdidagoodjobandlistedmanyscientistsaswellastheircontributions.Today,wearegoingtolearnaboutmorescientists.?Step3Listening(onPages5-6)
!--?xml:namespaceprefix=vns="urn:schemas-microsoft-com:vml"/--Task1Pre-listening?T:Firstlet’senjoythepicture.Whatcanyousee??S:PresidentJiangZeminandanoldman.?T:PresidentJiangZeminvisitedQianXuesen.?T:WhathaveyoualreadyknownaboutQianXuesen???S:HeisaChinesescientist,whoseresearchmainlycentersonPhysics.?S:Heishonoredas“ChineseRocketFather”.?S:HehasmadegreatcontributionstospacetravelinChina.?T:Good.Youseemtohaveagoodknowledgeofhim.QianXuesenisafamousscientist?whohascontributedmuchtothecountry’scauseofscienceandtechnology?.?Task2FirstListening?T:Wearetolistentothematerial,whichisaboutQianXuesen.YuPingistellingherfriendSteveSmithaboutQianXuesen’slife.IfyouwereYuPing,whattopicswouldyouliketocoverwhenintroducinghim??S:Thedatewhenhewasbornandhedied;theplacewherehewasborn,lived,studiedanddied;hisfamily;hisexperience;hisachievements;hiscontributions?T:Excellent.Whenwetalkaboutandintroduceascientist,weusuallydescribetheseaspects.Now,listencarefullyandtickoutwhichtopicsarementionedinthetape.?(Afterlistening,letthemchecktheanswers.)?Task3SecondListeningT:Thistime.You’llwritedowntheanswerstothefivequestions.Boysandgirls,howcanwewritetheanswersfastandcorrectly??S:Weshouldgothroughthequestionsfirstandkeeptheminmind.Whenwearelistening,wejustneedtopaymuchattentiontothesentencesrelatedtotheanswers.?S:Weneedn’twritedowneachwordoftheanswers.Wejustwritedownsomekeywords.Laterwecanwritedownthecompleteanswerswiththehelpofthesekeywords.?T:Youareclever.Nowpleasegetready.First,lookthroughtheintroductiontothelistening?material.Then,scanthequestions.(Twominuteslater,theteacherplaysthetape.ThengiveSstimetoorganizetheirsentences.)T:Let’schecktheanswersonebyone.?(Ifthestudentsmakesomecommonmistakesortheyseemtohavedifficultyinfindingoutanswers,teacherscangivethemsomehintsandletthemlistentoitagain.Afterthat,checktheanswers.Ifthestudentsfeelitdifficulttomakesenseaboutthekeywordsandunderstandthespeakers’intentionandattitude,theteachershouldgivethemsomehelp.)?Task4Post-listening?T:Afterlistening,wouldyoupleaseanswersomequestions??1Whatdidyouhearonthetape??2WhatcanyoulearnfromQianXuesen??(Atthisparttheteachermayhavethestudentspresentwhattheyhaveheardonthetapeandshowtheirownopinionaboutwhattheyhavelearnedfromhim.Ifpossible,theteachermayhavesomeofthestudentsdothepresentationworkinclass.Bydoingthis,thestudentscangetfullunderstandingofwhatthetapeistalkingabout.)?Step4Listening(Page41)?Task1Pre-listening?T:JustnowwelearnedaboutaChinesescientist,QianXuesen,whohasmadegreatcontributionsonspacetravelinChina.Wewillgettoknowanotherscientist,whosecontributionisonbotany.Canyouguesswhoheis??S:CarlLinnaeus,maybeDarwin.?T:Youareright.Bothscientistsdidstudybotanyanddevotedtheirtimetotheresearch.Asweknow,CarlLinnaeusdevelopedhissystemabouthowtoclassifyspecies.WhileDarwinwroteabookontheOriginalofSpecies,inwhichheexplainedhowanimalsandplantsdevelopedastheenvironmentchanged.ThefollowingisaboutCarlLinnaeus.T:Now,readtheinstructionsaboutthelisteningandchoosewhichofthefollowingstatementsmistcloselydescribeswhatthislisteningpassageisabout.Explainwhytheothersarewrong.?S:Ithinkthethirdoneisright.Thisisaboutamanwhofindsaflowerandwantstoknowifitisanewspeciesofflower.Becauseheisinterestedinbiologyandespeciallyinthestudyofplants.Whathewantstodoistostudywhetheritisanewspecies.Theothertwostatementscannotconveythestudy.Task2Listening?T:Whatyousaidisreasonable.Let’slistentogethertofindwhetheryouranswerisright.?(Afterlistening,letthemchecktheanswers.)?T:Listentothetapeagainandtrytocompletethefollowingpassage.?Tofindthenameofanunknownflower,firstyouhavetogotoseeaflower__________he/shewilllookinaspecial__________writtenbyCarlLinnaeus.Helivedin__________from__________to__________.Hewasveryimportantbecausehesolvedaseriousproblemfor__________.Hesawallplantsandanimalsproduce__________.Someanimalsproduce__________butotherslay__________whileplants__________.Heusedthesedifferentwaysofproducingyoungtoputplantsandanimalsinto__________.Forexample,thegroupcalledbirdslay__________toproduceyoungandtheyallhave__________.Linnaeusputtheplantsandanimalsintosmallergroupsorspecies.Hegaveeachonetwonames.Oneisforthelargegroup,forexample__________andoneisforthespecies,forexample__________.Soaparrotwouldbe__________.Hewasthefirstpersontosuccessfullyclassifyallplantsandanimals.Task3Post-listening?Letthestudentsfillintheblanketsandthencheck.Ifthestudentsfeelitdifficulttodoit,letthemlistenitathirdtime.Aftercheckingtheanswers,askthestudentstoreadittogether.?Step5Listening(Page44)T:Lookatthescreenandlet’sreadthefollowingnewwordsfirstly.(Thesewordsarepresentedonthescreen:analyse,pure,foundation,symbol,sin,cosin,geometry,calculus,mechanics,practical,topology)?T:Canyouguesswhichfieldthenextscientistisinaccordingtothenewwords??S:Thenextmustbeamathematician.?T:Right.ThismathematicianisLeonhardEuler.JohnSmithisdiscussingwithZhaoYanghisresearchintothelifeandworkofamathematiciancalledLeonhardEuler.ListentothetapeandfillinthechartontheimportanceofEuler’swork.?Euler’sachievementsExamplesNewsymbolsandtermsOldareasofmathematicsNewareaofmathematicsImportance(Afterlistening,asksomestudentstofillinit.Ifmanystudentsfeelitdifficult,letthemlistentoitagain.Whiledoingit,theteachercanalsoasktwostudentstocometowritetheanswersontheblackboard.Theteacherhadbettergivethempraiseiftheydoitwell.)?Step6SpeakingTask1Lead-inT:Boysandgirls,fromthelisteningmaterial,weknowaboutsomescientists.Doyouhaveadreamtobeascientistinthefuture??Ss:Yes./No.?T:Supposeyouwouldliketoworkasascientist,andyouarediscussingwithyourpartneraboutyourfuturejob.Whatquestionswouldyouliketoconcern??S1:Whatjobdoyouwanttodo??S2:Howwillyougetthejob??S3:Whatpreparationswillyoumakeforthefuturejob??T:Right.Apartfromthose,wecanalsotalkaboutthefollowingquestions:?1Whateducationwillyouneed??2Whatpersonalitywillbeneeded??3Whatworkexperiencewouldbeuseful??4Howlongwillthetrainingtake??5Howwillyouprepareforthiscareer??T:Theseexpressionsmayhelpyou:?Ialwayswantedto...because...TheexperienceIwillneedis...?Imightfinditdifficultto...Ineedtopractise...?Mygreatestproblemwillbeto...?Iwillneedtobe/become...?patient,creative,hard-working,co-operative,confident,brave,positive,pleasant,polite,determined,energetic,strictwith...Task2Dialogue(pairwork)T:Nowitistimetodiscusswhatscientificjobeachofyouwouldliketochooseinthefuturewiththehelpofthementionedquestionsandexpressionsinpairs.Iwillgiveyoufiveminutestoprepareforit.AfterthatIwillletsomeofpairstocometoactitout.?Sample:A:Whatjobdoyouwanttodointhefuture??B:Ialwayswanttobeabotanist.?A:Ifyouwanttobeascientist,whateducationwillyouneed??B:Iwilltrymybesttogotoakeyuniversitytolearnandstudybotany.?A:Whatworkexperiencewouldbeuseful??B:TheexperienceIwillneedistostudywildplantsinthewildwhenIamatschool.Now,Ijointhesocialnaturalcluborganizedbyourschool.EverytimeImakeeveryefforttoovercomedifficultytostudyplantsinthewild.?A:Doyouknowwhatpersonalitywillbeneededifyouwanttobeascientistinthefuture?B:Iwillneedtobepatient,creative,hard-working,brave,energeticandco-operative.?A:Yes,Iagreewithyou.Besidesthosepersonalities,wealsoshouldbedetermined,confident?andpositive.?B:Iwillmakeeffortstoownsuchgoodquality.?A:Howwillyouprepareforthiscareer??B:IintendtogotocollegenextyearandthenIwillhaveachancetobeascientist.ButmygreatestproblemwillbewhetherIwillbeabletogotouniversityinthefuture.?A:Don’tworryaboutitandjustgetdowntopreparingforit.Goodchancesalwaysbelong?tothepersonswhohavealreadypreparedforthem.Iamsureyouwillsucceedifyoukeepworkinghard.Iamwaitingforyourgoodnews.?B:Thankyouforyourencouragement.Iwillmakefulluseoftimetostruggleforsuccess.Task3Free-talk?T:Letustalkfreely.Youareallowedtomoveabouttofindastudentyou’dliketotalkwith.Imagineyouaregoingtomeetaspecialistaboutanewly-foundflower.Yourpartnerwillbetheassistantfortheflowerspecialist.Youbothneedadescriptionoftheothersoyoucanrecognizeeachotherwhenyoumeet.Nowringtheassistanttosortoutthenecessaryinformation.?(Ofcourse,followingtheabove,thestudentsmaygatheraroundormovearoundtofindtheirownfavoritepartnerstotalkwith.Thisisahalf-controlledactivity.Teachersletthemexpresswhatevertheywanttoonconditionthattherearesomeexpressionsonthetheme.Givethemaboutfiveminutestoprepareforit.Later,asksomepairstoactitout.Asusual,theteacherwon’tforgettogivecommentsonwhatthestudentsdo,includingtheteacher’swordspraisingwhattheyaredoinginthefirstfewstages.Onlyinthiswayarethestudentsencouragedtotalkfreelyaboutwhattheywanttosayandwhytheythinkso.)?Step7SummaryandHomework?T:Inthisperiod,wemainlyfocusonthespeakingandlisteningabilities.Ifyoufeellistening?orspeakingpoor,youhadbetterpracticemoreafterclass.Practicemakesperfect.Today’shomeworkistodescribeascientisttoyourpartnerandletyourpartnerguesswhoshe/heis.Thenexchange.
TheDesignoftheWritingontheBlackboard
Unit1Greatscientists
Period3ListeningandSpeakingThequestionsmaybeusefultodiscussthescientificjob,Theexpressionsmayhelpyoutodiscussyourfuturescientificjob.Whatjobdoyouwanttodo??Whateducationwillyouneed??Whatpersonalitywillbeneeded??Whatworkexperiencewouldbeuseful??Howlongwillthetrainingtake??Howwillyouprepareforthiscareer?Ialwayswantedto...because...?TheexperienceIwillneedis...?Imightfinditdifficultto...?Ineedtopractise...?Mygreatestproblemwillbeto...?Iwillneedtobe/becomepatient,creative,hard-working,co-operative,confident,brave...
ResearchandActivitiesAfterclass,usethelibraryortheInternettofindoutfactsaboutimportantwomenscientistsinmedicine,physics,chemistry,biology,astronomyormathematics.Thereareveryusefulwebsites(includingthe“Biographiesofwomenmathematicianswebsite”).Prepareatalkonyourchosenscientists.Remembertoincludesomeinformationabouttheirlife,theirachievementsandwhytheyareconsideredimportantinsciencehistory.Thengiveyourtalktotheclass.
ResearchforTeaching
Euler,Leonhard(bornApril15,1707,Basel,Switz.diedSept.18,1783,St.Petersburg,Russia)?Swissmathematicianandphysicist,oneofthefoundersofpuremathematics.Henotonlymadedecisiveandformativecontributionstothesubjectsofgeometry,calculus,mechanics,andnumbertheorybutalsodevelopedmethodsforsolvingproblemsinobservationalastronomyanddemonstratedusefulapplicationsofmathematicsintechnologyandpublicaffairs.Euler’smathematicalabilityearnedhimtheesteemofJohannBernoulli,oneofthefirstmathematiciansinEuropeatthattime,andofhissonsDanielandNicolas.In1727hemovedtoSt.Petersburg,wherehebecameanassociateoftheSt.PetersburgAcademyofSciencesandin1733succeededDanielBernoullitothechairofmathematics.?Eulerdevotedconsiderableattentiontodevelopingamoreperfecttheoryoflunarmotion,whichwasparticularlytroublesome,sinceitinvolvedtheso-calledthree-bodyproblem—theinteractionsoftheSun,Moon,andEarth.(Theproblemisstillunsolved.)Hispartialsolution,publishedin1753,assistedtheBritishAdmiraltyincalculatinglunartables,ofimportancetheninattemptingtodeterminelongitudeatsea.Oneofthefeatsofhisblindyearswastoperformalltheelaboratecalculationsinhisheadforhissecondtheoryoflunarmotionin1772.ThroughouthislifeEulerwasmuchabsorbedbyproblemsdealingwiththetheoryofnumbers,whichtreatsofthepropertiesandrelationshipsofintegers,orwholenumbers(0,±1,±2,etc.);inthis,hisgreatestdiscovery,in1783,wasthelawofquadraticreciprocity,whichhasbecomeanessentialpartofmodernnumbertheory.?Inhisefforttoreplacesyntheticmethodsbyanalyticones,EulerwassucceededbyJ.-L?.Lagrange.But,whereEulerhaddelightedinspecialconcretecases,Lagrangesoughtforabstractgenerality;and,whileEulerincautiouslymanipulateddivergentseries,Lagrangeattemptedtoestablishinfiniteprocessesuponasoundbasis.ThusitisthatEulerandLagrangetogetherareregardedasthegreatestmathematiciansofthe18thcentury;butEulerhasneverbeenexcelledeitherinproductivityorintheskillfulandimaginativeuseofalgorithmicdevices(i.e.,computationalprocedures)forsolvingproblems.
CarlLinnaeus(bornMay23,1707,Rshult,Smland,Swed.diedJan.10,1778,Uppsala)CarlLinnaeusisaSwedishbotanistandexplorerwhowasthefirsttoframeprinciplesfordefininggeneraandspeciesoforganismsandtocreateauniformsystemfornamingthem.Linnaeuswasthesonofacurate.Hisloveofflowersdevelopedatanearlyage;whenonlyeightyearsoldhewasnicknamed“thelittlebotanist.”HestudiedattheuniversitiesofLundandUppsalaandreceivedhisdegreeinmedicinefromthelatter.
TheSystemaNaturae,whichLinnaeushadshowntothebotanistJanFredrikGronoviusinmanuscript,soimpressedGronoviusthathepublisheditathisownexpense.Linnaeus’systemwasbasedmainlyonflowerparts,whichtendtoremainunchangedduringthecourseofevolution.Althoughartificial,asLinnaeushimselfrecognized,suchasystemhadthesuprememeritofenablingstudentsrapidlytoplaceaplantinanamedcategory.Itcameintouseataperiodwhentherichnessoftheworld’svegetationwasbeingdiscoveredataratethatoutstrippedmoreleisurelymethodsofinvestigation.Sosuccessfulwashismethodinpracticethatitsveryeaseofapplicationprovedtobethegreatestobstacletoitsreplacementbythemorenaturalsystemsthatsupersededit.
Hislateryearsweretakenupbyteachingandthepreparationofotherworks:FloraSuecica(1745)andFaunaSuecica(1746);twovolumesofobservationsmadeduringthejourneysinweden,Vstgtaresa(1747)andSknskaresa(1751);HortusUpsaliensis(1748);hisPhilosophiaBotanica(1751);andtheimportantSpeciesPlantarum(1753),inwhichthespecificnamesarefullysetforth.In1755hedeclinedaninvitationfromtheKingofSpaintosettleinthatcountrywithaliberalsalaryandfulllibertyofconscience.In1761hewasgrantedaSwedishpatentofnobility,antedatedto1757,fromwhichtimehewasstyledCarlvonLinné.Anapoplecticattackin1774lefthimgreatlyweakened,andhediedfouryearslater.?TheLinnaeanmanuscripts,andhisherbariumandcollectionsofinsectsandshells,purchasedbySirJ.E.Smithin1783,arecarefullypreservedbytheLinneanSocietyatBurlingtonHouse,London.
MarieCurie
(bornNov.7,1867,Warsaw,Pol.,RussianEmpire.diedJuly4,1934,nearSallanches,France)MariaSklodowskaPolish—bornFrenchphysicistfamousforherworkonradioactivityandtwiceawinneroftheNobelPrize.WithHenriBecquerelandherhusband,PierreCurie,shewasawardedthe1903NobelPrizeforPhysics.Shewasthenthesolewinnerofthe1911NobelPrizeforChemistry.Fromchildhoodshewasremarkableforherprodigiousmemory,andattheageof16shewonagoldmedaloncompletionofhersecondaryeducationattheRussianlycée.Becauseherfather,ateacherofmathematicsandphysics,losthissavingsthroughbadinvestment,shehadtotakeworkasateacherand,atthesametime,tookpartclandestinelyinthenationalist“freeuniversity,”readinginPolishtowomenworkers.Attheageof18shetookapostasgoverness,whereshesufferedanunhappyloveaffair.FromherearningsshewasabletofinancehersisterBronia’smedicalstudiesinParis,ontheunderstandingthatBroniawouldinturnlaterhelphertogetaneducation.Shecamefirstinthelicenceofphysicalsciencesin1893.ShebegantoworkinLippmann’sresearchlaboratoryandin1894wasplacedsecondinthelicenceofmathematicalsciences.ItwasinthespringofthisyearthatshemetPierreCurie.?Theirmarriage(July25,1895)markedthestartofapartnershipthatwassoontoachieveresultsofworldsignificance,inparticularthediscoveryofpolonium(socalledbyMarieinhonourofhernativeland)inthesummerof1898,andthatofradiumafewmonthslater.FollowingHenriBecquerel’sdiscovery(1896)ofanewphenomenon(whichshelatercalled“radioactivity”),MarieCurie,lookingforasubjectforathesis,decidedtofindoutifthepropertydiscoveredinuraniumwastobefoundinothermatter.ShediscoveredthatthiswastrueforthoriumatthesametimeasG.C.Schmidtdid.?InDecember1904shewasappointedchiefassistantinthelaboratorydirectedbyPierreCurie.ThesuddendeathofPierreCurie(April19,1906)wasabitterblowtoMarieCurie,butitwasalsoadecisiveturningpointinhercareer:henceforthshewastodevoteallherenergytocompletingalonethescientificworkthattheyhadundertaken.OnMay13,1906,shewasappointedtotheprofessorshipthathadbeenleftvacantonherhusband’sdeath;shewasthefirstwomantoteachintheSorbonne.In1908shebecametitularprofessor,andin1910herfundamentaltreatiseonradioactivitywaspublished.In1911shewasawardedtheNobelPrizeforChemistry,fortheisolationofpureradium.In1914shesawthecompletionofthebuildingofthelaboratoriesoftheRadiumInstitute(InstitutduRadium)attheUniversityofParis.OneofMarieCurie’soutstandingachievementswastohaveunderstoodtheneedtoaccumulateintenseradioactivesources,notonlyforthetreatmentofillnessbutalsotomaintainanabundantsupplyforresearchinnuclearphysics;theresultantstockpilewasanunrivaledinstrumentuntiltheappearanceafter1930ofparticleaccelerators.TheexistenceinParisattheRadiumInstituteofastockof1.5gramsofradiuminwhich,overaperiodofseveralyears,radiumDandpoloniumhadaccumulated,madeadecisivecontributiontothesuccessoftheexperimentsundertakenintheyearsaround1930andinparticularofthoseperformedbyIrèneCurieinconjunctionwithFrédéricJoliot,whomshehadmarriedin1926(seeJoliot-Curie,FrédéricandIrène).ThisworkpreparedthewayforthediscoveryoftheneutronbySirJamesChadwickandaboveallthediscoveryin1934byIrèneandFrédéricJoliot-Curieofartificialradioactivity.AfewmonthsafterthisdiscoveryMarieCuriediedasaresultofleukemiacausedbytheactionofradiation.Hercontributiontophysicshadbeenimmense,notonlyinherownwork,theimportanceofwhichhadbeendemonstratedbytheawardtoheroftwoNobelPrizes,butbecauseofherinfluenceonsubsequentgenerationsofnuclearphysicistsandchemists.?In1995MarieCurie’sasheswereenshrinedinthePanthoninParis;shewasthefirstwomantoreceivethishonourforherownachievements.?
Module4SandstormsinAsia-listening教案
經(jīng)驗(yàn)告訴我們,成功是留給有準(zhǔn)備的人。教師要準(zhǔn)備好教案,這是老師職責(zé)的一部分。教案可以讓學(xué)生能夠在課堂積極的參與互動,幫助教師能夠井然有序的進(jìn)行教學(xué)。寫好一份優(yōu)質(zhì)的教案要怎么做呢?以下是小編為大家收集的“Module4SandstormsinAsia-listening教案”歡迎閱讀,希望您能夠喜歡并分享!
Module4SandstormsinAsia-listening教案
Step1:Pre-listening
Activity1:Matchthewordswiththedefinitions.
atmospherecarbondioxidechemicaldamage(v.n.)environmentgarbagemeltpollutionrecyclethePoles
1.theairaroundtheearthatmosphere
2.tohaveabadeffectonsomeoneorsomethingdamage
3.asubstanceusedinchemistrychemical
4.thenaturalworld—theland,air,water,plantsandanimalsenvironment
5.tochangefromsolidtoliquid,e.g.icebecomeswatermelt
6.totreatsomethingsothatwecanuseagainrecycle
7.oneofthegasesintheaircarbondioxide
8.themostnorthernandsouthernpointsonearththePoles
9.rubbishgarbage
10.damagetotheenvironmentbecauseofchemicalspollution
Step2:While-listening
Activity2:Listentoanenvironmentalexpert’sspeech.Putthetopicsbelowintheorderyouhearthem.
A.garbageB.treesC.pollutionfromcarsD.meltingicesatthePolesE.theclimate
Keys:EDCBA
Activity3:Nowlistenagain.Answerthequestions.
1.Whatisthemosturgentproblemofall?
Theclimate.
2.WhatexamplesofcoastalcitiesdoesDavidgive?
NewYorkandShanghai
3.Whatisdescribedasamajorproblem?
Carbondioxidefromcars.
4.Whathappenswhenwecutdownalotoftrees?
Thereislessoxygenandmorecarbondioxideintheatmosphere.
Activity4:Listenagain.Completethesesentences.
1.Asaresult,theiceatthePolesisbeginningtomelt.
2.Theseamayriseandcitiesonthecoastmaydisappearunderwater.
3.Toomuchcarbondioxidepollutestheatmosphere.
4.Treestakeincarbondioxideandgiveoutoxygen.
5.Weburngarbageandpollutetheatmosphere.
6.Instead,weshouldrecyclethegarbage.
Activity5:Discussion.
1)Listentothetapeandfillintheblanks.
Whyistheclimategettingwarmer?
It’spollutionthat’stheproblem.Gasesfromcarsentertheatmosphereandstopthesun’sheatfromleavingtheatmosphere.Andfactoriesgiveoutchemicalsthatdothesamething.Soasaresult,theclimateisgettingwarmer.
2)Discussion:Ifwecutdownallthetrees,whatwouldhappen?
Step3:Post-listening
1)Listentoasongandtrytocompletethelyrics.
ColorsoftheWind
VanessaWilliams
Therainstormandtheriveraremybrothers
Theheronandtheotheraremyfriends
Andweareallconnectedtoeachother
Inacircle,inahoopthatneverends
Haveyoueverheardthewolfcrytothebluecornmoon
Orlettheeagletellyouwherehe’sbeen
Canyousingwithallthevoicesofthemountain
Canyoupaintwithallthecolorsofthewind
Canyoupaintwithallthecolorsofthewind
2)Discussion.
Accordingtotheconversation,thesongandthepresentsituation,pleasethinkoutwhatwecandotoprotecttheenvironment.
Step4:Homework
Writeanessaywiththethemeofprotectingtheenvironment.