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Unit4.Electricity。

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Unit4.Electricity
Writing課時(shí)第6課時(shí)
教學(xué)目標(biāo)1．學(xué)生已掌握情態(tài)動(dòng)詞的意義和用法，要求學(xué)生學(xué)會(huì)把情態(tài)動(dòng)詞使用到寫作當(dāng)中，從而幫助學(xué)生鞏固所學(xué)的知識(shí)。
2．以節(jié)約用電為話題，提高學(xué)生節(jié)約資源與安全用電的意識(shí)。
重點(diǎn)和難點(diǎn)1.注意情態(tài)動(dòng)詞的合理使用，鞏固已學(xué)知識(shí)；
2.學(xué)會(huì)觀察圖片，看圖寫作，激發(fā)學(xué)生的思維，拓展寫作思路。

教學(xué)過程
Step1.Warming-up
DotheexerciseofPartAMakingrules,thencheckingtheanwerstogether.

Step2.
1.LookatthepicturesonP62andanswerthefollowingquestions:
1).Howmanylightsdoestheboyturnon?
2).Doesheneedfourlights?
3).Sowhatmustwenotdotosaveelectricity?
4).Whatdidtheownerforget?
5).Sowhatmustwedotosaveelectricity?
6).Whatdidheforget?
7).Sowhatmustwenotdotosaveelectricity?
8).Whatdidtheownerforgetwhenheusedtheairconditioner?
9).Sowhatmustwedotosaveelectricity?
2.根據(jù)以上問題回答的內(nèi)容補(bǔ)充以下文章：
Let’ssaveelectricityinourdailylife!
Electricityisveryimportantandusefulinourdailylife,sowemustmakesomerulestosaveit.First,____________________________________________________________________________________________________________________________________________________________________________________________________________________________Allinall,wedon’tneedtodobigthings,wecanjuststartoutsmall.Let’sdoourbesttosaveelectricityfromnowon!

Step3.
Homeworkassignment.
根據(jù)下面提示，寫一篇短文。詞數(shù)：80詞左右
內(nèi)容：
1、電在我們的校園生活中是非常有用的。
沒有電就會(huì)很麻煩,因此我們要節(jié)約用電。
2、文中至少有3條合理節(jié)約用電的做法。
題目：
Let’ssaveelectricityinourschool!

__________________________________________________________________________________________________________________________________________________________________
__________

教學(xué)反思

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Unit4.Electricity2

Unit4.Electricity2
ReadingA課時(shí)第1課時(shí)
教學(xué)目標(biāo)1.讓學(xué)生了解科普文章類文章，培養(yǎng)學(xué)生的閱讀興趣；
2.引導(dǎo)學(xué)生學(xué)習(xí)有關(guān)電的來源、電的流程、使用途徑等知識(shí)內(nèi)容，激發(fā)學(xué)生思維；
3.引發(fā)學(xué)生思考電是人類仆人的真正含義
重點(diǎn)和難點(diǎn)1.學(xué)習(xí)和掌握與電相關(guān)的詞匯與句型；
2.培養(yǎng)閱讀技巧；
3.了解電的產(chǎn)生與輸出過程。

教學(xué)過程
Step1.Warming-up
1.TalkaboutthecartoonpictureonP49.
2.Discusssomethingsaboutelectricity.

Step2.Pre-ReadingPreparation
1.Letthestudentsdiscussingroup,thenansweringthefollowingquestions.
Whatdoeselectricitylooklike?
Howcanweknowthereiselectricity.
Whatcanwedowithelectricity?

Step3.While-reading
1.Lookatthetitle,thepicture,thefirstandthelastparagraphsandanswerthequestionsofA1:
whatisthegirlgoingtobuy?
Whatdidtheboyaskhertodo?
Whoorwhatistheservantinthetitle?
2.Checktheanswerafterthefirstreading,andaskthestudentwhichlinescanfindtheanswers.
3.Readthestoryforthesecondtimeandanswerthefollowingquestions:
DidBennyoftentrytofoolDaisy?
Canweseeelectricity?
DidBennyfoolDaisysuccessfully?
HowdidBennyexplainaboutelectricity?
4.ReadthetextforthesecondtimeandfinishA3andA4.
5.Checktheanswers,thendiscussinghowdoeselectricitymakethelightbulbshine.
6.Readafterthetapeandtranslatethewholepassage.

Step4.Post-Reading
1.Languagepoints
2.Haveadebate:electricityisagoodservantorabadservant?
3.FindthetruemeaningofAservantofmankind.

Homework:
1.Writedowntheimportantphrasesandsentences.
2.FinishtheexercisesonBookBandEnglishWeekly.
教學(xué)反思

Unit6Electricity知識(shí)點(diǎn)整理

七年級(jí)英語下冊(cè)Unit6Electricity期末知識(shí)點(diǎn)匯總

七年級(jí)英語下冊(cè)Unit6Electricity期末知識(shí)點(diǎn)匯總

1.moment可數(shù)名詞,意為”瞬間;片刻”如：I’dliketotalktoyouforamoment.
與moment相關(guān)的短語：
amomentago剛剛;剛才如：Hewashereamomentago.
atthemoment現(xiàn)在;此刻如：Heisathomeatthemoment.
waitamoment等一會(huì)兒如：Waitamoment,please.
later副詞,意為”后來;以后”
2.atthemoment此時(shí)此刻；forthemoment暫時(shí)；inamoment過一會(huì)兒；atanymoment任何時(shí)刻
3.apacketof一袋
不可數(shù)名詞沒有復(fù)數(shù)形式，在表示數(shù)量時(shí)，常用“a+單位量詞+of+不可數(shù)名詞”結(jié)構(gòu)。
如：apieceofmeat;apieceofpaper;
aglassofapplejuice;abagofmilk
數(shù)詞+單位量詞+of+不可數(shù)名詞可數(shù)名詞復(fù)數(shù)
如：twoglassesofwater;threecupsoftea;
twopacketsofsweets;threebagsofpencils
4.inaway在某種程度上
ontheway在路上；intheway擋道；
inthisway這邊走；bytheway順便問下
5.connect連接…常用結(jié)構(gòu):beconnectedtosth.連接到……
connectsth.to/with…把…和…連接起來.
如：TurnonyourcomputerandconnectittotheInternet.
TherailwaylineconnectsWuhantoShanghai.
6.powerstation發(fā)電站
7.washingmachine洗衣機(jī)
8.switchoff=turnoff關(guān)掉
9.tidyup收拾整理=putaway
10.aircondition空調(diào)
11.comeinto進(jìn)入……之內(nèi)
12.providesb.withsth.供應(yīng)給某人某物
如：Thesunprovidesuswithlightandheat.
“為某人提供某物”還可以用providesth.forsb.
13.“asmany+復(fù)數(shù)名詞+as”意為”和……一樣多的…”
如：Ihaveasmanybooksasyou.我和你有一樣多的書.
“asmuch+不可數(shù)名詞+as”意為”和…一樣多的…”
如：MybrotherdrinksasmuchmilkasIeveryday.
14.sharesth.withsb.與某人合用/分享某物
15.(1)“keep+sb./sth.+形容詞”意為“讓某人/某物保持某種狀態(tài)”。
(2)keepdoingsth.連續(xù)不斷地做某事，一直做。強(qiáng)調(diào)不斷重復(fù)的動(dòng)作。
如：LiLeikeepsbuyingbooksaboutcars.李雷不斷地買有關(guān)車的書。
(3)keepsb./sth.doingsth.讓某人不斷地做某事
(4)keepsb.fromdoingsth.阻止某人做某事
如：Wemustkeepthemfromgettingtoknowourplans.我們必須防止他們知道我們的計(jì)劃。
16.atleast至少
17.makesure務(wù)必，確信
Keygrammar
情態(tài)動(dòng)詞
一、情態(tài)動(dòng)詞的定義
情態(tài)動(dòng)詞是一類用于表示說話人的語氣和情態(tài)的助動(dòng)詞。常表示命令、請(qǐng)求、拒絕、義務(wù)、可能、需要等。
二、情態(tài)動(dòng)詞的特點(diǎn)
1.情態(tài)動(dòng)詞無人稱和數(shù)的變化,
2.情態(tài)動(dòng)詞后面跟的動(dòng)詞需用原形,否定式構(gòu)成是在情態(tài)動(dòng)詞后面加"not"。
3.個(gè)別情態(tài)動(dòng)詞有過去式,過去式用來表達(dá)更客氣,委婉的語氣,時(shí)態(tài)性不強(qiáng),可用于過去，現(xiàn)在。
三、情態(tài)動(dòng)詞的用法
1.can/could；can’t/couldn’t(否定)
1)表示能力,意為“能、會(huì)”,例如：
如：IcanspeakalittleEnglish.--Canyourideabike?
Ican’tswim.--Yes,Ican./No,Ican’t.
2)表示請(qǐng)求或允許，多用于口語中，意為“可以、能”等
如：Youcangohomenow.現(xiàn)在你可以回家了--CanIborrowyourbike?
Youcan’tstopyourcarhere.--Yes,youcan./No,youcan’t.
3)用于否定句、疑問句中，表示猜測(cè)、懷疑或不肯定.
如：Lucycan’tbeathomenow,shewenttotheparkjustnow.
Wherecanitbe?Ican’tfindmyfootball.

1）could是can的過去式,有兩種用法,一種表示過去式；一種用來表達(dá)更加客氣,委婉的語氣,時(shí)態(tài)性不強(qiáng),可用于過去，現(xiàn)在。
2）beableto意為“有能力，能夠做...”,相當(dāng)于can/could,但它有人稱，數(shù)和時(shí)態(tài)的變化。
2.may;maynot(否定)
1)表示“請(qǐng)求，許可”，此時(shí)與can同義，可以互換使用
如：MayIborrowyourbike?CanIborrowyourbike?
Yes,youmay./No,youmaynot.Yes,youcan./No,youcan’t.
2)may/might表示不太肯定的猜測(cè)，意為“有可能”
如：Lucymaycometoschoollatetoday.
Itmightraintoday.
：might是may的過去式,有兩種用法,一種表示過去式，一種表示更加委婉,客氣的語氣或?qū)赡苄缘膽岩伞?br> 3.must;mustn’t(否定)
1)must(“必須”,表示命令)，mustn’t(“一定不能”,表示強(qiáng)烈禁止...)
如：Youmustgotobedbefore22:00pm.
Youmustn’tplaywithfire.It’sdangerous!
--MustIwritedownthesentences？
--No，youneedn’t.(--No,youdon’thaveto)
注意：在回答must的疑問句中，否定回答用needn’t或don’thaveto表示“不必”，不用mustn’t
2)must還可以表示非?？隙ǖ牟聹y(cè)，意為“一定”
如：ThegirlinaredskirtmustbeLucy.
3)must/haveto的區(qū)別：
①.must表示必須，強(qiáng)調(diào)主觀上的愿望；haveto表示“不得不”，強(qiáng)調(diào)客觀需要
如：Youmustgobebedbefore22:00pm.Mybikeisbroken,soIhavetogotoschoolonfoot.
②.haveto有人稱、數(shù)、時(shí)態(tài)的變化；must則沒有。
如：Ihavetocleantheclassroomtoday.Shehastofinishherhomeworkfirst.
Itwaslate,hehadtogotoschoolwithoutbreakfast.
Practice
一、選擇填空：
()1.Mummakesmeeatanappleeveryday______thedoctoraway.
A.keepsB.iskeptC.tokeepD.kept
()2.I’mgettingfatterandfatternow.WhatshouldIdo,doctor?
--You’dbettereat______foodandtake______exercise.
A.less;lessB.more;moreC.more;lessD.less;more
()3.---WhatcanIdoforyou?---I’dliketwo_______.
A.packetofteaB.packetsofappleC.packetsofteaD.packetofapples
()4.Watercomestoourflats__________pipesunderthestreets.
A.acrossB.alongC.throughD.over
()5.AndyWanglooks_________today.Heislaughingalltheway.
A.happyB.happilyC.sadD.sadly
()6.Thecomputerisconnected_______amachine.
A.atB.toC.onD.in
()7.Ourheadteacheriskindtousandsheislikeourmother,_____.
A.onthewayB.bythewayC.inawayD.intheway
()8.________youshowmethewaytothenearestundergroundstation?
A.mayB.mustC.canDshould
()9.Electricity__________ourlifeeasier,Wemustsaveit.
A.makeB.makesC.ismakingD.made
()10.Jasonputsomericeinthepotand__________thericecooker.
A.openedB.switchedonC.closedD.turnedoff
()11.Iwashedalotofclothes.Whocan_______?
A.tidyupthemB.tidythemupC.tidyitupD.tidyupit
()12.Iaskedhimtwice.Buthedidn’t______myquestions.
A.answersB.answertoC.replyD.replyto
()13.Thereare_________syllablesintheword“chemical”.
A.twoB.threeC.fourD.eight
()14.—John:MayIhaveapacketofsweets?
—Shopassistant:________________
A.No,itisnotyoursB.OK,hereyouareC.That’sagoodideaD.Whynot?
()15.EarthHourstartedin2007in________.
A.theUSAB.ChinaC.theUKD.Australia
二、用同義詞（組）替代句中的劃線部分。
1．“Idon’tthinkitisagoodwaytoworkouttheproblem.”repliedMrWhite.
A.saidB.answeredC.askedD.thought
2.Don’tlooksofoolish.Itisaveryeasyquestion.
A.sillyB.happyC.clever
3.----CanIaskyouaquestion?
----Waitforamoment,I’mcoming.
A.alongtimeB.ashorttimeC.atonce
4.Theboyislikehisfather.
A.likesB.soundslikeC.lookslike
5.Youneedn’tfinishtheworktoday.
A.don’thavetoB.can’tC.mustn’t
三、用單詞的適當(dāng)形式填空：
1YaoMingisverytall.Heisat______(little)twometrestall.
2Withthis_______(electricity)blanket,thegrandpawontfeelcoldinwinter.
3It’s_____________ofyoutobuysuchadress.Itlookssougly(fool)
4Theremotecontroldoesn’tworknow.Ithinkweneedtochangethetwo_________init(battery)
5Yourroomisdirtyand_____________.Ithinkyouknowwhatyouneedtodonow(tidy)
6.Amoment_____(late),Daisycameback.
7.Benny______(reply)“Canyougetmeabagofsweets?”
8.CanTom_____(speak)English?
9.Electricityisveryhelpful,butwemustrememberthe_____(safe)rules.
10.Wemustn’ttouchtheTVsetwithourwet______(hand)becauseitisdangerous.
四、語法，情態(tài)動(dòng)詞專練
1.()----MayIborrowyourbooks?----Yes,you______.
A.mayB.canC.mustD.need
2.()---CanhespeakEnglish?
----________.
A.Yes,hedoesB.Yes,hedidC.Yes,hecanD.Yes,hemust
3.()----_______Iswimhere?----I’msorry.Children_____swimalonehere.
A.Must;can’tB.May;mustC.Can;mustn’tD.Can’t;can
4.()Withthehelpofthenewtechnology,you_____e-mailyourfriendsbymobilephone.
A.canB.mustC.needD.should
5.()----CanIgofishingwithyou,Dad?
-----No,you_____.You______stayathomeanddoyourhomework.
A.won’t;mayB.can’t;mustC.shouldn’t;oughtD.needn’t;should
6.()Thomas,pleasebequiet.Theothers_____hearverywell.
A.can’tB.mustn’tC.shouldn’tD.needn’t
7.()It’sverywarmtoday.You____wearthecoat.
A.mustB.don’thavetoC.havetoD.mustn’t
8.()Lookatthatmanoverthere.hebeourteacherMr.Luo?
--Hebehim.HehasgonetoBeijing.
A.May;mustB.Can;mayC.Can;can’tD.May;can’t
9.()You_____talkloudlyinthelibrary.
A.don’tB.mustn’tC.needn’tD.don’thaveto
10.()_____climbthattalltree?
A.DoyouneedB.AreyouneedC.NeedyouD.Needyouto
11.()Somewarm-heartedanimals___hibernate(冬眠)
A.needn’tB.doesnotneedtoC.needn’ttoD.don’tneed
12.()____Igoandapologizetomyteacherformymistake?
A.ShouldB.NeedC.CanD.May
13.()They_____dowellintheexam.
A.canbeabletoB.beabletoC.areabletoD.amableto
14.()MustIretrunthemagazinetoyourightnow,Sandy?
No,you______.You_____keepituntilnextWednesday.
A.mustn’t;mayB.needn’t;mustC.needn’t;canD.can’t;may
15.()Ichangethebulbnow?--No,youmaynot.
Youswitchofftheelectricity.
A.Can;needB.May;mustC.Must;mustD.Can;must
16.()John____cometoseeustonight,butheisn’tverysureyet.
A.mayB.canC.hastoD.must
17.()----IsTomathomenow?
----Hebeathomenow.BecauseIhisroomjustnow
andheanswered.
A.must;calledB.can’t;phoneC.may;calledD.must;phoned
18.()ShallItellTomsomethingaboutit?--No,you.
A.mustn’tB.needn’tC.can’tD.won’t
19.()Mymotherisill.SoItolookaftermylittlebrother.
A.mustB.mayC.havetoD.should
20.()You____goandseeadoctoratoncebecauseyou’vegotafever.
A.canB.mustC.dareD.would