高中教案教案

Scientistsatwork教案1。

俗話說(shuō)，磨刀不誤砍柴工。教師要準(zhǔn)備好教案，這是教師的任務(wù)之一。教案可以更好的幫助學(xué)生們打好基礎(chǔ)，幫助教師有計(jì)劃有步驟有質(zhì)量的完成教學(xué)任務(wù)。你知道怎么寫(xiě)具體的教案內(nèi)容嗎？下面是由小編為大家整理的“Scientistsatwork教案1”，僅供參考，大家一起來(lái)看看吧。

教學(xué)示例（一）
I.Teachingaims:
Talkaboutscienceandscientists.
learnhowtogiveinstructions.
Similardialoguepresentationwithnewwordsandexpressionsusedwithin
II.Teachingaids:taperecorder,pictures,slides
StepIWarmingup
1.TaskSs:Whatcanyouseeinpictures?Whataretheydoingnow?doyoulikedosomeexperimentationinthelab?Isitdangerous?
Whatarethenamesoftheschoolsubjectsinwhichyoustudysciences?(physics,chemistry,biology)
WhatEnglishwordsdoyouthinkofforeachsubjectofscience?(physics,chemistry,biology)
Whichexperimentationdoyoulike?Why?
Giveanexampleofwhatyoulearnaboutforeachfieldofscience.
1.Inchemistrywelearnaboutthewaydifferentliquidsandmaterialsreactwitheachother.Forexample,ifyouputapieceofmetalintoaglasscontainingastrongacid,itwilldissolve.
2.Inphysicswelearnaboutthelawoftheuniverse,forexampleaboutNewtonandthereasonwhyallthingsonearthfalldown.
3.Inbiologywelearnaboutlifeonearth,forexamplebylookingatthestructureofcells)
2.Pairwork
letSsworkingroups,andwhatdoyouneedwhenyoudoyouexperimentationinthechemistrylab?Findoutthethingsandtellthereasons.

glassesbandagegloves

respiratorgasmask　scissors
StepII.Listening
1.TsaytoS：letuslistentoadialogue.Inthedialogue,youwillhearateachergivesinstructionstoagroupofstudentshowtobehaveinasciencelab.
2.letSslistencarefullyandrememberthesafetyinstructions,andcompletetheexerciseinthebook.
3.playthetapetwiceormore,andchecktheanswerswiththeclass.
StepIII.Speaking
1.showthepictureofhigh-speedmaglevtrainandaskSs:Doyouknowthis?Itisahigh-speedmaglevtrain,inChinese“高速懸浮磁列車(chē)”.
Task:whatdoyouthinkitishelpfulforpeople?why?
Tsay:let’sreadadialogueandwhattheythinkofthetrain.
letSsreadthedialogueinthebook,explainingtheword‘high-speedmaglevtrain’
2.letSsworkinpairs,anddiscusstheadvantagesanddisadvantagesofthecloning,nuclearenergy,computers,spaceflights.
2.Thatinformationcanhelpstudentsgetideasforadvantagesanddisadvantages.
Cloning:peoplethatlookthesame;makingpeopleandanimalswhichareindangerintheworld;helppeoplewholostanear/eye/leg…
Nuclearenergy:doesn’tpollutetheenvironment;verydangerouswaste;makealltheelectricitysocietyneeds.
Spaceflights:understandtheouterspace;veryexpensive;showshowfaracountryhasdeveloped.
StepIVPractice
Finishtheexercises“Listening”“Talking”inWorkbook
Homework
Finishofftheexercise“Practising”intheWorkbook.

相關(guān)知識(shí)

Unit16Scientistsatwork

Unit16Scientistsatwork
一、明確教學(xué)目標(biāo)
1.Developthestudentsreadingability,especiallytheirreadingcomprehension.
2.Readthereadingpassageandknowabout
3.Enablethestudentstoknowtheseriousattitudetoscience.
二、教學(xué)過(guò)程
Step1Presentation（整體感知）
Doyouknowthenamesofsomefamousscientist?Whataretheyfamousfor?
EinsteinDarwinNewtonEdisonMarieCurieFranklin
RelativetheoryEvolutionGravityElectricBulbRadioactivityKiteexperiment
TodaywecometotheReading.ItsaboutAsweallknow,BenjaminFranklinisafamouspolitician．Buttoday,wewillreadapassageabouthimasascientist.Hisseriousattitudetoscience.Let’sseehowFranklinmadehisfamouselectricityexperimentbyflyingakite．
Step2Pre-readingdiscussions
Weallknowthatitisthescientists’greateffortthatmakesthegreatachievementonscience.Couldyounamesomescientistsnames?Andwhataretheyfamousfor?Trytofillintheblanksofthefollowingform,ifyoucant,askyourclassmatetohelpyou．Form:inthe18th19thcenturiesscientistsallovertheworldmademanyimportantdiscoveries．Givesomeexample．PhysicsMedicineChemistryBiology
Somefamousscientistsare:
Archimedes:mathematicsandphysics:hediscoveredpi(π)
Darwin:biology:hediscoveredthattheancestorsofpeopleweremonkeys
Curie:physics:shediscoveredradiumandradioactivity
Newton:physics:hediscoveredwhyallthingsfalldowntoearth.
PhysicsMedicineChemistryBiology
√MadameCurie√FlorenceNightingale√WatsonCrick√BeatrixPotter
(Radioactivity)(Piecharts)(DNA)(seedsofmushrooms)
√IsaacNewton√JohnSnow√Gay-Lussac√CharlesDarwin
(gravity)(spreadofdisease)(Gaslaws)(Evolution)
√LordKelvin√LouisPasteur√Mendeleev√CarlLinnaeus
(lowesttemperature)(germs)(PeriodicTableofelements)(Namingplants)
Step3ReadingFastreading
Listentothetapeandanswerthefollowingquestion.
1.WastheexperimentdoneinJune1752successful?
Yes,theexperimentwassuccessful
2.Whatdidthisexperimentprove?
Thisexperimentprovedthatlightingandelectricitywerethesame.
Readthetextcarefullyagain,andgivethestudentssomeexplanations.
Getthestudentsreadthetestandthendecideifthefollowingstatementsaretrue(T)orfalse(F).
1．In1752scientistsalreadyknewwhatelectricityis.T
2．Franklinwashelpedbyafriendtodotheexperiment.
3．Franklinmadethekiteofsilkbecausewetsilkdoesnotconductelectricity.
4．Acondenserwasusedintheexperimenttostoreelectricity.T
5．Thekeytiedtothestringwasputintothedoortostophekitefromflyingaway.
6.Franklinconductedthekiteexperimentinsunnydays.
Readhepassageandthenfindoutthemainidea．
Paragraph1IntroductionofFranklin’sexperiment．
Paragraph2—3TheprocessOftheexperiment．
Paragraph4—6Thetipofdoingtheexperiment．
Aim:Toshowthatlightningandelectricityarethesame.
Materials:Somewoodensticks,apieceofsilk,somerope,averysharppieceofmetal,asilkribbon,akey,acondenser,asmallshed,athunderstormwithlightning.
Instructions:Paragraphs5and6.Description:Paragraph3.
Results:TheelectricitystoredinthecondensercanbeusedtodootherExperiments,whichprovesthatlightningandelectricityarethesame.
Discussion:None.
Step4Listeningtothereadingpassage
Playthetapeforthestudentstolistenandfollow.Payattentiontothepronunciationandintonation.
Step5Post-reading
AnswerstoExercise1:1True2False3False4True5False
SuggestedanswerstoExercise2:
1Hewantedtoprovethatlightningandelectricityarethesamething.
2Asilkkitewilllastlongerinbadweatherthanapaperkite.
3Yes.Franklinsexperimentwasverydangerousbecauseifsomethingwentwronghecouldbekilledbythelightning.
AnswerstoExercise3:1Incorrect2Correct3Incorrect4Correct
Extension1Franklinsaid,Youcancollectandstoretheelectricitywiththecondenseranduseitforotherexperiments.Askstudentswhatotherkindsofsimpleexperimentscouldbedoneusingtheelectricitystoredinthecondenser.BenjaminFranklinconductedmanyexperimentsinhislife.YoumightwantyourSstogoontheInternettofindoutwhattheywereandreportbacktotheclass.
Step6Summary
thepurposeoftheexperimentToshowthelightingandelectricityarethesame:
Time::June1752People:Franklin,hissonPlace:ashedinthefields
Weather:Thunderstorm,rainyday
Fourthingsneededfortheexperiment:astrongkite,akey,badweather,acondenser
Threeimportantstepstopreparefortheexperiment:fix,fasten,tie
Step7Homework：
1．Introduceascientisthayyouadmiremost。
2．FinishWinnersPeriod2

SBIBUnit16Scientistsatwork考點(diǎn)復(fù)習(xí)教案

SBIBUnit16Scientistsatwork
富蘭克林風(fēng)箏試驗(yàn)
素材新挖掘
考點(diǎn)1.conductvt.實(shí)施；管理；指揮；引導(dǎo)n.行為；操行
Intheeighteenthcentury,BenjaminFranklinconductedanumberofexperimentsinwhichheshowedwhatelectricityis.
Theoperationwasconductedinsecrecy.
這一行動(dòng)是秘密進(jìn)行的。
conductn.行為；舉止；舉動(dòng)；品行
conductvt.vi.行為；舉止；為人；表現(xiàn)
conductvt.處理；經(jīng)營(yíng)；引導(dǎo)；實(shí)施
conductvt.引導(dǎo)；導(dǎo)游；導(dǎo)演
conductvt.導(dǎo)電
conductorn.售票員
conductionn.傳導(dǎo)
(1)He__________(為人)himselfwell.
(2)Theguide__________(帶領(lǐng))usonatouroftheoldestmuseum
inthecountry.
conducts
conducted
(3)Copper__________(傳導(dǎo))electricitybetterthanothermaterials.
(4)Myauntconductsherbusinessverysuccessfully.(替換)
____________
(5)Theheadmasterconductedusroundtheschool.(替換)
______________
(6)他言行不一。(寫(xiě)作小練筆：主謂+介詞；disagreewith)
______________________________________
考點(diǎn)2.chargevt.使充電；要(價(jià))；控告；攻擊
Thekiteandthestringwillbecomecharged.
Howdoesanatombecomecharged?
原子是怎樣帶電的？
chargevt.充電
chargesb.forsth.要價(jià)；收費(fèi)
chargevt.記賬；在帳冊(cè)等上記入……
chargevi.猛沖；攻擊；向前沖
chargesb.with公開(kāi)指責(zé)；控訴
inchargeof(某人)負(fù)責(zé)
inthechargeof(某事)由某人負(fù)責(zé)
conducts
runs/manages
showed
Hisconductdisagreeswithhiswords.
(1)Suddenlythewildanimal_________(猛沖)atus.
(2)Howmuchdidhe________(收費(fèi))youforrepairingthe
bicycle?
(3)Aslongasyouvepaidinadvancewewont___________
(收費(fèi))youfordelivery.
(4)Thoseyoungmenwerechargedbythepolicewithcausinga
disturbanceintheneighbourhood.(英譯漢)
____________________________________________
(5)He________________(被控告)withstealingacar.
(6)大學(xué)收取的學(xué)費(fèi)很高。(寫(xiě)作小練筆：主謂賓；college,fees)
______________________________
考點(diǎn)3.provevt.證明；證實(shí)
Thisexperimentprovesthatlightningandelectricityarethesame.
Heprovedthathewasrightandhiscriticshadtobackdown.
他證明了他是正確的，而那些非難他的人不得不收起他們那一套。
charged
charge
charge
wascharged
警察指控那些青年人在這一帶犯了擾亂治安罪。
Thecollegechargedhighfees.
provevt.證明；證實(shí)
provevi.(用作系動(dòng)詞)表明；證明
(1)Hisidea________(證明)practical.
(2)He__________(證明)(tobe)agoodteacher.
(3)Factshavealso_________(證明)himtobeathief.
(4)Thelittleboyhas_________(證實(shí))hisclevernessinthe
televisionquiz.
(5)隨著時(shí)間的推移，他的理論證明是正確的。
(寫(xiě)作小練筆：主系表；theory,correct)
_________________________________________
考點(diǎn)4.tearvi.vt.(tore,torn)撕扯；撕裂；撕毀
Butakitemadeofsilkwillnottearsosoonintheweatherwithrainandstrongwinds.
Thissortofclothdoesntteareasily.
這種布不容易扯破。
proves
proves
proved
proved
Astimewenton,histheoryprovedcorrect.
tearvt.vi.(tore;torn)扯;撕
tearn.(常用作可數(shù)名詞)眼淚
tearvi.被撕破(主動(dòng)表被動(dòng))
tearup撕開(kāi)
tearat撕扯
(1)She_______(撕)theletteropenandafterreadingafewlines,
shetoreitintopieces.
(2)Thecountrywas________(四分五裂)bythecivilwar.
(3)_______(淚珠)rolleddownhercheeks.
(4)Sheburstinto_______(眼淚)whenhearingthenews.
(5)她把信撕成了兩半。(寫(xiě)作小練筆：主謂賓；inhalf)
_____________________________
考點(diǎn)5.controlvt.n.控制；支配；管理
Addatailtotheframeandtiealongstringtothecrosssoyoucancontrolthekite.
Wehavetolearntocontrolradioactivity.
我們必須學(xué)會(huì)控制放射能。
tore
torn
Tears
tears
Shetoretheletterinhalf.
controlvt.=govern;rule控制；統(tǒng)治；管理；抑制
inthecontroln.控制力；影響力
undercontrol處于控制之下
underthecontrolof在……控制之下
beyondcontrol=outofcontrol失去控制
(1)Tryto_________(控制)yourtongue.
(2)He___________(控制)severalAmericannewspapers.
(3)Hewasin_________(控制)ofthecar.
(4)Allschoolsareunderthe_________(管轄)oftheMinistry
ofEducation.
(5)Policestruggledto___________________(控制人群).
考點(diǎn)6.fastenvt.扎牢；拴緊；使固定
Second,fastenakeytotheendofthelongstring.
Pleasefastenthesetagstoyourhandluggage.
請(qǐng)把這些標(biāo)簽系在您的手提行李上。
control
controlled
control
control
controlthecrowd
fastenvt.把……結(jié)牢；把……拴?。豢劬o
fastenvt.纏住
fastenvi.扣緊;關(guān)緊;閂住
tievt.拴；系
(1)Thedog_________________(被栓在)apostbyachain.
(2)Dont___________(推卸)theresponsibilityonhim.
(3)She___________(纏住)herselfonhim.
(4)She____________(貼到)thenoticetotheboard.
(5)Thedoorwillnot__________(鎖上).
(6)你開(kāi)車(chē)時(shí)必須扣緊安全帶。(寫(xiě)作小練筆：主謂賓；belt,drive)
____________________________________________
考點(diǎn)7.Thereisnodoubtthat100yearsagoanimaltestingwascruelbuttodayanimalsinexperimentsareverywelltakencareof.毫無(wú)疑問(wèn),一百年前動(dòng)物實(shí)驗(yàn)很殘忍，但是今天試驗(yàn)中的動(dòng)物得到很好的照料。
Heiscertainlythere.Thereisnodoubtaboutit.
他肯定在那兒，這是毫無(wú)疑問(wèn)的。
wasfastenedto
fasten
fastened
fastened
fasten
Youmustfastenyourseatbeltwhenyoudrive.
thereislittle/nodoubt+that-clause毫無(wú)疑問(wèn)……
thereisnodoubtabout…毫不懷疑……
(1)She’sanhonestgirl;thereis__________(毫不懷疑)aboutit
(2)Thereis__________(毫不懷疑)thatyou’llbewarmlywelcomed.
(3)I______________(懷疑)thathellcome.
(4)I__________(懷疑)whetherheisathome.
(5)Thereisnodoubtthatyourlifeisindanger.(英譯漢)
______________________________________
(6)無(wú)容置疑，郭晶晶是天生的跳水運(yùn)動(dòng)員。
(寫(xiě)作小練筆：主系表；gifteddiver)
____________________________________________________

Someresearchersbelievethatthereisnodoubt_______acurefor
AIDSwillbefound.
A.whichB.thatC.whatD.whether
B。
在“thereisnodoubt”后常跟that引導(dǎo)的從句，表示“毫無(wú)疑問(wèn)”之意。
nodoubt
nodoubt
don’tdoubt
doubt
毫無(wú)疑問(wèn)，你的生命處于危險(xiǎn)之中。
ThereislittledoubtthatGuoJingjingisagifteddiver.
考點(diǎn)8.Doesanimaltestingwork?
動(dòng)物實(shí)驗(yàn)有效嗎？
Ifso,youknowitdoesntwork.
如果這樣,你會(huì)明白這樣做不會(huì)起作用。
workvi.起作用,有效,行得通
dovi.行；可以
helpvi.有用
(1)Themachinewont________(起作用)becauseofafaulty
connection.
(2)Theplanwont________(行得通).Howso?
(3)Alittlebedwill_______(行)formylittlebrother.
(4)Nothingwill_______(有用).
(5)Themedicine________andthepainwentaway.
A.didB.helpedC.workedD.reacted
C。worked“起作用”。
work
work
do
help

Unit16Scientistsatwork2

俗話說(shuō)，凡事預(yù)則立，不預(yù)則廢。高中教師要準(zhǔn)備好教案，這是高中教師的任務(wù)之一。教案可以讓學(xué)生更好的消化課堂內(nèi)容，幫助高中教師營(yíng)造一個(gè)良好的教學(xué)氛圍。你知道如何去寫(xiě)好一份優(yōu)秀的高中教案呢？下面是小編幫大家編輯的《Unit16Scientistsatwork2》，大家不妨來(lái)參考。希望您能喜歡！

Unit16Scientistsatwork
一、明確教學(xué)目標(biāo)
1.Developthestudentsreadingability,especiallytheirreadingcomprehension.
2.Readthereadingpassageandknowabout
3.Enablethestudentstoknowtheseriousattitudetoscience.
二、教學(xué)過(guò)程
Step1Presentation（整體感知）
Doyouknowthenamesofsomefamousscientist?Whataretheyfamousfor?
EinsteinDarwinNewtonEdisonMarieCurieFranklin
RelativetheoryEvolutionGravityElectricBulbRadioactivityKiteexperiment
TodaywecometotheReading.ItsaboutAsweallknow,BenjaminFranklinisafamouspolitician．Buttoday,wewillreadapassageabouthimasascientist.Hisseriousattitudetoscience.Let’sseehowFranklinmadehisfamouselectricityexperimentbyflyingakite．
Step2Pre-readingdiscussions
Weallknowthatitisthescientists’greateffortthatmakesthegreatachievementonscience.Couldyounamesomescientistsnames?Andwhataretheyfamousfor?Trytofillintheblanksofthefollowingform,ifyoucant,askyourclassmatetohelpyou．Form:inthe18th19thcenturiesscientistsallovertheworldmademanyimportantdiscoveries．Givesomeexample．PhysicsMedicineChemistryBiology
Somefamousscientistsare:
Archimedes:mathematicsandphysics:hediscoveredpi(π)
Darwin:biology:hediscoveredthattheancestorsofpeopleweremonkeys
Curie:physics:shediscoveredradiumandradioactivity
Newton:physics:hediscoveredwhyallthingsfalldowntoearth.
PhysicsMedicineChemistryBiology
√MadameCurie√FlorenceNightingale√WatsonCrick√BeatrixPotter
(Radioactivity)(Piecharts)(DNA)(seedsofmushrooms)
√IsaacNewton√JohnSnow√Gay-Lussac√CharlesDarwin
(gravity)(spreadofdisease)(Gaslaws)(Evolution)
√LordKelvin√LouisPasteur√Mendeleev√CarlLinnaeus
(lowesttemperature)(germs)(PeriodicTableofelements)(Namingplants)
Step3ReadingFastreading
Listentothetapeandanswerthefollowingquestion.
1.WastheexperimentdoneinJune1752successful?
Yes,theexperimentwassuccessful
2.Whatdidthisexperimentprove?
Thisexperimentprovedthatlight-ingandelectricitywerethesame.
Readthetextcarefullyagain,andgivethestudentssomeexplanations.
Getthestudentsreadthetestandthendecideifthefollowingstatementsaretrue(T)orfalse(F).
1．In1752scientistsalreadyknewwhatelectricityis.T
2．Franklinwashelpedbyafriendtodotheexperiment.
3．Franklinmadethekiteofsilkbecausewetsilkdoesnotconductelectricity.
4．Acondenserwasusedintheexperimenttostoreelectricity.T
5．Thekeytiedtothestringwasputintothedoortostophekitefromflyingaway.
6.Franklinconductedthekiteexperimentinsunnydays.
Readhepassageandthenfindoutthemainidea．
Paragraph1IntroductionofFranklin’sexperiment．
Paragraph2—3TheprocessOftheexperiment．
Paragraph4—6Thetipofdoingtheexperiment．
Aim:Toshowthatlightningandelectricityarethesame.
Materials:Somewoodensticks,apieceofsilk,somerope,averysharppieceofmetal,asilkribbon,akey,acondenser,asmallshed,athunderstormwithlightning.
Instructions:Paragraphs5and6.Description:Paragraph3.
Results:TheelectricitystoredinthecondensercanbeusedtodootherExperiments,whichprovesthatlightningandelectricityarethesame.
Discussion:None.
Step4Listeningtothereadingpassage
Playthetapeforthestudentstolistenandfollow.Payattentiontothepro-nunciationandintonation.
Step5Post-reading
AnswerstoExercise1:1True2False3False4True5False
SuggestedanswerstoExercise2:
1Hewantedtoprovethatlightningandelectricityarethesamething.
2Asilkkitewilllastlongerinbadweatherthanapaperkite.
3Yes.Franklinsexperimentwasverydangerousbecauseifsomethingwentwronghecouldbekilledbythelightning.
AnswerstoExercise3:1Incorrect2Correct3Incorrect4Correct
Extension1Franklinsaid,Youcancollectandstoretheelectricitywiththecondenseranduseitforotherexperiments.Askstudentswhatotherkindsofsimpleexperimentscouldbedoneusingtheelectricitystoredinthecondenser.BenjaminFranklinconductedmanyexperimentsinhislife.YoumightwantyourSstogoontheInternettofindoutwhattheywereandreportbacktotheclass.
Step6Summary
thepurposeoftheexperimentToshowthelightingandelectricityarethesame:
Time::June1752People:Franklin,hissonPlace:ashedinthefields
Weather:Thunderstorm,rainyday
Fourthingsneededfortheexperiment:astrongkite,akey,badweather,acondenser
Threeimportantstepstopreparefortheexperiment:fix,fasten,tie
Step7Homework：
1．Introduceascientisthayyouadmiremost。
2．FinishWinnersPeriod2

高一英語(yǔ)下冊(cè)第四單元重點(diǎn)解析：Scientistsatwork（人教版）

經(jīng)驗(yàn)告訴我們，成功是留給有準(zhǔn)備的人。作為高中教師就要根據(jù)教學(xué)內(nèi)容制定合適的教案。教案可以讓上課時(shí)的教學(xué)氛圍非?；钴S，幫助高中教師掌握上課時(shí)的教學(xué)節(jié)奏。所以你在寫(xiě)高中教案時(shí)要注意些什么呢？小編經(jīng)過(guò)搜集和處理，為您提供高一英語(yǔ)下冊(cè)第四單元重點(diǎn)解析：Scientistsatwork（人教版），歡迎大家閱讀，希望對(duì)大家有所幫助。

高一英語(yǔ)下冊(cè)第四單元重點(diǎn)解析：Scientistsatwork（人教版）

疑難詳解

1.Inthe18thcentury,BenjaminFranklincinductedanumberofexperimentsinwhichheshowedwhatelectricityis.在18世紀(jì)，本杰明富蘭克林進(jìn)行了許多次關(guān)于電的實(shí)驗(yàn)。

[問(wèn)]...inwhichheshowedwhatelectrivityis.in+which引導(dǎo)定語(yǔ)從句，修飾先行詞experiments。這里which不能由that替換。

(2)...whatelectricityis賓語(yǔ)從句，做show的賓語(yǔ)。

(3)Anumberof...“許多，大量”，接可數(shù)名詞復(fù)數(shù)，謂語(yǔ)要用復(fù)數(shù)形式;thenumberof...“……的數(shù)量”謂語(yǔ)動(dòng)詞應(yīng)該用單數(shù)。

例如：Anumberofpeasantsareworkinginthefieldswiththesunburningintheshy.許多農(nóng)民頂著烈日在地里耕作。

2.HavingrealizedthatIcoulduseakitetoaftractlightning.Idecidedtodoanexperiment.當(dāng)我意思到能用風(fēng)箏來(lái)接收閃電后，我決定做個(gè)實(shí)驗(yàn)。

[問(wèn)]Havingrealizedthat...在句子充當(dāng)什么成分?

[答]Havingrealizedthat...現(xiàn)在分詞短語(yǔ)做時(shí)間狀語(yǔ)。(=whenIhadrealizedthatIcoulduseakitetoattractlightning,...)

3.Mostkitesaremadeofpaper,butakitemadeofsilkwilllastlongerinweatherwithrainandstrongwinds.大多數(shù)風(fēng)箏是由紙做的，但用絲綢制的風(fēng)箏在雨和大風(fēng)的天氣中持續(xù)的時(shí)間會(huì)長(zhǎng)一些。

[問(wèn)]madeofsilk在句中作何成分?bemadeof與bemadefrom有何區(qū)別?

[答]madeofsilk過(guò)去粉刺短語(yǔ)所定語(yǔ)，修飾akite,hemadeof...由……構(gòu)成(看得出原材料);bemadefrom由……構(gòu)成(看不出原材料)。

4.Thepiecesshouldbejustlongenoughtoreachthecomersofthehandkerchief.那木頭片的長(zhǎng)度應(yīng)該達(dá)到手帕的四個(gè)角。

[問(wèn)]enough在句中如何用?reach是什么意思?

[答](1)enoughto..."足夠……的”，enough修飾形容詞時(shí)應(yīng)放在形容詞之后。例如：kindenough足夠善良的;carefulenough足夠仔細(xì)的。

(2)reachv.n.達(dá)到;夠得著。例如：outofreach夠不著。

5.Addatailtotheframeandtiealongstringtothecrosssoyoucancontrolthekite.在架子上加一個(gè)把柄，在十字架上栓一根長(zhǎng)細(xì)繩以便你能夠控制那風(fēng)箏。

[問(wèn)]add...to...是什么意思?

[答]add...to...把……加到……。

例如：Pleaseaddanarticletothesentence,thenitiscorrectnow.請(qǐng)?jiān)谶@個(gè)句子中加上一個(gè)定冠詞，然后它就對(duì)了。

6.THisribbon,whichmustnotgetwet,willprotectyoufromtheelectricity.這根絲帶一定不能變濕，它是用來(lái)保護(hù)你不被觸電的。

[問(wèn)]whichmustnotgetwet作何成分，protect...from...是什么意思?

[答](1)...whichmustnotgetwet，非限制性定語(yǔ)從句做定語(yǔ)，修飾Thisribbon.

(2)protect...from...“保護(hù)……免受……”，相當(dāng)于prevent...from...;stop...from...;keep...from。

例如：Weshouldpreventourenvironmentfrombeingpolluted.我們應(yīng)該保護(hù)我們的環(huán)境免受污染。

7.Aroundtheworld,animalsareusedtotestproducesuchasshampoo,skincreamsandnewcancerdrugs.在全世界，動(dòng)物們被用來(lái)測(cè)試如洗發(fā)水，皮膚霜以及新的治癌藥等產(chǎn)品。

[問(wèn)]beusedtodo...,beusedtodoing...和usedtodo有何區(qū)別?

[答]beusedtodo...被用來(lái)做什么......

beusedtodoing...習(xí)慣于做……

usedtodo...過(guò)去常常做……

8.Theyalsobelievethatitispossibletousemuchfeweranimals.

他們還相信用更少的動(dòng)物測(cè)試是可能的。

[問(wèn)]itispossibletodo...做……是可能的;

Itis+adj.+todo...it是形式主語(yǔ)，真正的主語(yǔ)是動(dòng)詞不定式短語(yǔ)todo...

例如：Itisdifficulttolearntwoforeighlanguages.學(xué)會(huì)兩門(mén)外語(yǔ)是困難的。

Itisimpossibletowalkonthemoon.在月球上行走是不可能的。

疑難詳解

1.Inthe18thcentury,BenjaminFranklincinductedanumberofexperimentsinwhichheshowedwhatelectricityis.在18世紀(jì)，本杰明富蘭克林進(jìn)行了許多次關(guān)于電的實(shí)驗(yàn)。

[問(wèn)]...inwhichheshowedwhatelectrivityis.in+which引導(dǎo)定語(yǔ)從句，修飾先行詞experiments。這里which不能由that替換。

(2)...whatelectricityis賓語(yǔ)從句，做show的賓語(yǔ)。

(3)Anumberof...“許多，大量”，接可數(shù)名詞復(fù)數(shù)，謂語(yǔ)要用復(fù)數(shù)形式;thenumberof...“……的數(shù)量”謂語(yǔ)動(dòng)詞應(yīng)該用單數(shù)。

例如：Anumberofpeasantsareworkinginthefieldswiththesunburningintheshy.許多農(nóng)民頂著烈日在地里耕作。

2.HavingrealizedthatIcoulduseakitetoaftractlightning.Idecidedtodoanexperiment.當(dāng)我意思到能用風(fēng)箏來(lái)接收閃電后，我決定做個(gè)實(shí)驗(yàn)。

[問(wèn)]Havingrealizedthat...在句子充當(dāng)什么成分?

[答]Havingrealizedthat...現(xiàn)在分詞短語(yǔ)做時(shí)間狀語(yǔ)。(=whenIhadrealizedthatIcoulduseakitetoattractlightning,...)

3.Mostkitesaremadeofpaper,butakitemadeofsilkwilllastlongerinweatherwithrainandstrongwinds.大多數(shù)風(fēng)箏是由紙做的，但用絲綢制的風(fēng)箏在雨和大風(fēng)的天氣中持續(xù)的時(shí)間會(huì)長(zhǎng)一些。

[問(wèn)]madeofsilk在句中作何成分?bemadeof與bemadefrom有何區(qū)別?

[答]madeofsilk過(guò)去粉刺短語(yǔ)所定語(yǔ)，修飾akite,hemadeof...由……構(gòu)成(看得出原材料);bemadefrom由……構(gòu)成(看不出原材料)。

4.Thepiecesshouldbejustlongenoughtoreachthecomersofthehandkerchief.那木頭片的長(zhǎng)度應(yīng)該達(dá)到手帕的四個(gè)角。

[問(wèn)]enough在句中如何用?reach是什么意思?

[答](1)enoughto..."足夠……的”，enough修飾形容詞時(shí)應(yīng)放在形容詞之后。例如：kindenough足夠善良的;carefulenough足夠仔細(xì)的。

(2)reachv.n.達(dá)到;夠得著。例如：outofreach夠不著。

5.Addatailtotheframeandtiealongstringtothecrosssoyoucancontrolthekite.在架子上加一個(gè)把柄，在十字架上栓一根長(zhǎng)細(xì)繩以便你能夠控制那風(fēng)箏。

[問(wèn)]add...to...是什么意思?

[答]add...to...把……加到……。

例如：Pleaseaddanarticletothesentence,thenitiscorrectnow.請(qǐng)?jiān)谶@個(gè)句子中加上一個(gè)定冠詞，然后它就對(duì)了。

6.THisribbon,whichmustnotgetwet,willprotectyoufromtheelectricity.這根絲帶一定不能變濕，它是用來(lái)保護(hù)你不被觸電的。

[問(wèn)]whichmustnotgetwet作何成分，protect...from...是什么意思?

[答](1)...whichmustnotgetwet，非限制性定語(yǔ)從句做定語(yǔ)，修飾Thisribbon.

(2)protect...from...“保護(hù)……免受……”，相當(dāng)于prevent...from...;stop...from...;keep...from。

例如：Weshouldpreventourenvironmentfrombeingpolluted.我們應(yīng)該保護(hù)我們的環(huán)境免受污染。

7.Aroundtheworld,animalsareusedtotestproducesuchasshampoo,skincreamsandnewcancerdrugs.在全世界，動(dòng)物們被用來(lái)測(cè)試如洗發(fā)水，皮膚霜以及新的治癌藥等產(chǎn)品。

[問(wèn)]beusedtodo...,beusedtodoing...和usedtodo有何區(qū)別?

[答]beusedtodo...被用來(lái)做什么......

beusedtodoing...習(xí)慣于做……

usedtodo...過(guò)去常常做……

8.Theyalsobelievethatitispossibletousemuchfeweranimals.

他們還相信用更少的動(dòng)物測(cè)試是可能的。

[問(wèn)]itispossibletodo...做……是可能的;

Itis+adj.+todo...it是形式主語(yǔ)，真正的主語(yǔ)是動(dòng)詞不定式短語(yǔ)todo...

例如：Itisdifficulttolearntwoforeighlanguages.學(xué)會(huì)兩門(mén)外語(yǔ)是困難的。

Itisimpossibletowalkonthemoon.在月球上行走是不可能的。