八年级英语Unit 25 The accident人教朗文版知识精讲.doc

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1、初二英语Unit25Theaccident人教朗文版【本讲教育信息】一.教学内容：Unit25Theaccident二.重点、难点1.引导时间状语的when和while2.本单元交际语言及语言点三.具体内容1.You’dbettergotobedearliertonight,ifyoucan.如果可能的话，你最好今晚早点睡觉。2.You’dbetternottalk.你最好别说话。3.Let’smovethebag,oritmaycauseanaccident.让我们把那个包移开，否则它会引起一场事故。4.Don’tmentionit.别提它了。5.Don’tcrowdroundhim.

2、别围着他。6.Howkind（shewas）!她多好呀！7.That’s/It’sreallyniceofyou.你真是太好了。（一）causevt.引起，带来1.causesth.引起某事Drivingtoofastcancauseanaccident.2.causesb.sth.带给某人某事Thiscarcausedmealotoftrouble.3.causesb./sth.todosth.引起某人（某物）干某事Hisillnesscausedhimtomissthegame.4.causesth.tosb./forsb.给某人带来……Heoftencausestroubleto/

3、forpeople.（二）luckilyadv.幸运地luckyadj.幸运的luckn.运气1.Haveagoodluck.祝你好运。2.Iamluckyenoughtohavegotthisjob.3.Luckily,hewasnotbadlyhurt.（三）imaginevt.想象，猜想，料想1.后接名词或代词Youcannotimaginetheirsurpriseathearingthenews.2.后接doingsth.Trytoimaginebeingonthemoon.3.后接从句Youcan’timaginehowImissedyouall.（四）Let’smoveth

4、ebag,oritmaycauseanaccident.祈使句+or+句子，其中的祈使句常用来表示一种条件，并且这种句子常可转换为if引导的条件状语从句。1.Becarefulwithyourbag,oritwillbelost.=Yourbagwillbelostifyouaren’tcarefulwithyourbag.2.Comeandseehimtoday,orhewillbeleavingtomorrow.=Hewillbeleavingtomorrowifyoudon’tcomeandseehimtoday.3.Speaklouderplease,ornobodycanhea

5、ryou.=Nobodycanhearyouifyoudon’tspeaklouder.4.Let’sreturnthebooktothelibrarynow,orwewillbefined.=Wewillbefinedifwedon’treturnthebooktothelibrarynow.（五）Hedidnotseethebaguntilitwastoolate.not…until在句中常被译作“直到……才”。例如：1.I’msorryIdidn’twritetoyouuntilnow.2.Hedidnotstopsmokinguntilhewasveryill.3.Ididn’t

6、speakofituntilyesterday.4.Ididn’tfallasleepuntilitwasoneo’clock.5.Theydidn’tstartthedinneruntilJackcame.（六）crowd的用法作为动词，crowd表示“聚集”，例如：1.Manypeoplecrowdedbeforetheschool.2.Thepupilscrowdedroundtheteachertoaskquestions.becrowdedwith表示状态，意思是“挤满了”，“充满着”。例如：3.Theroadiscrowdedwithcarsandbuses.4.Theroo

7、mwascrowdedwithpeople.（七）as…asonecan（=as…aspossible）意思是“尽可能地”，把形容词或副词放在第一个as后面，两种表达形式都可以。例如：1.Asquicklyasshecould/Asquicklyaspossible,MissZhaogotamedicinebox.2.Theboyrantowardsschoolasfastashecould（或asfastaspossible）.3