Module8Unit3Grammar課件八年級(jí)英語(yǔ)上冊(cè)

when引導(dǎo)的狀語(yǔ)從句（when+一般現(xiàn)在時(shí)）1.當(dāng)他來(lái)時(shí)，我們就開(kāi)始開(kāi)會(huì)。Whenhecomes,wewillstartthemeeting.2.當(dāng)你生病時(shí)，你必須看醫(yī)生。Whenyouareill,youmustseeadoctor.3.當(dāng)你過(guò)馬路時(shí)請(qǐng)當(dāng)心。Becarefulwhenyoucrossthestreet.主將從現(xiàn)、主情從現(xiàn)、主祈從現(xiàn)M8Grammar

過(guò)去進(jìn)行時(shí)（2）:when、while、as學(xué)案

延續(xù)性動(dòng)詞表示能夠延續(xù)的動(dòng)作，這種動(dòng)作可以延續(xù)下去或產(chǎn)生持久影響。如：learn,work,stand,lie,know,walk,keep,have,wait,watch,sing,read,sleep,live,stay

非延續(xù)性動(dòng)詞也稱(chēng)終止性動(dòng)詞、瞬間動(dòng)詞或短暫性動(dòng)詞，表示不能延續(xù)的動(dòng)作，這種動(dòng)作發(fā)生后立即結(jié)束。如：open,close,finish,begin,come,go,arrive,reach,getto,leave,move,borrow,buy

過(guò)去進(jìn)行時(shí)可與表示過(guò)去的時(shí)間狀語(yǔ)如atthattime,thewholemorning,allday,at7o’clock等時(shí)間狀語(yǔ)連用，也可與when，while，as引導(dǎo)的過(guò)去時(shí)間狀語(yǔ)連用，形成復(fù)合句。1、when所引導(dǎo)的時(shí)間狀語(yǔ)可指時(shí)間點(diǎn)或時(shí)間段，而while所引導(dǎo)的時(shí)間狀語(yǔ)只指時(shí)間段。因此，在when所引導(dǎo)的時(shí)間狀語(yǔ)從句中，動(dòng)詞可以是終止性動(dòng)詞或延續(xù)性動(dòng)詞；而在while從句中，動(dòng)詞必須是延續(xù)性動(dòng)詞。Eg.

①

_________myfatheropenedthedoor,Iwasdoingmyhomework.當(dāng)我父親打開(kāi)門(mén)時(shí)，我正在做作業(yè)。②

_______________wewereplayingbasketball,theteacherwalkedby.我們正打籃球時(shí)，老師路過(guò)。WhenWhen/While2、當(dāng)when引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，從句的動(dòng)作可與主句的動(dòng)作同時(shí)發(fā)生，也可在其后發(fā)生；而while引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，主、從句的動(dòng)作必須同時(shí)發(fā)生或存在。Eg.

①Weweretalking__________________________.

當(dāng)他進(jìn)來(lái)時(shí)，我們正在談話(huà)。②__________she_____________________,Iwasreadingbooks.

當(dāng)她正在看電視，我正在看書(shū)。whenhecameinWhilewaswatchingTV常見(jiàn)句型whenSb.was/weredoingsthwhensbdidsth.Iwasdoingmyhomeworkwhenmyfathergothome.while1.Whilesb.was/weredoingsth.,sbdidsth.2.Whilesb.was/weredoingsth.,sbwas/weredoingsth.Whileshewaswaitingtocrosstheroad,aboyfelldown.MymotherwaslisteningtomusicwhileIwascooking.3、在when引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，若主句用過(guò)去進(jìn)行時(shí)、從句用一般過(guò)去時(shí)，則表示一個(gè)動(dòng)作正在進(jìn)行的時(shí)候另一個(gè)動(dòng)作（突然）發(fā)生了，強(qiáng)調(diào)后一動(dòng)作的突然性。E.g.

①_________theheadteacherappeared,weweretalking.我們正在講話(huà)，校長(zhǎng)（突然）進(jìn)來(lái)了。②_________weweretalking,theheadteacherappeared.當(dāng)我們正在講話(huà)，校長(zhǎng)進(jìn)來(lái)了。（只表明了校長(zhǎng)進(jìn)來(lái)這一事實(shí)，而不強(qiáng)調(diào)突然性。）WhenWhile4、當(dāng)as引導(dǎo)時(shí)間狀語(yǔ)從句表示一件事情正在發(fā)生，另一件事也正在進(jìn)行的時(shí)候，不同于while從句，as從句一般不用進(jìn)行時(shí)，而用一般過(guò)去時(shí)，可譯成“邊...邊...；隨著...”。E.g.①Thegirlssang_______________________.

女孩們邊唱歌邊跳舞。②Thegirlsweresinging________________________.

女孩們?cè)诔瑁泻冊(cè)谔?。astheydancedwhiletheboysweredancing總結(jié)when引導(dǎo)的狀語(yǔ)從句（when+一般現(xiàn)在時(shí)）主將從現(xiàn)、主情從現(xiàn)、主祈從現(xiàn)Sb.was/weredoingsthwhensbdidsth.when引導(dǎo)的狀語(yǔ)從句（when+一般過(guò)去時(shí)）while引導(dǎo)的狀語(yǔ)從句（while+進(jìn)行時(shí)）1.Whilesbam/is/aredoing,sbam/is/aredoing2.Whilesb.was/weredoingsth,sbdidsth.3.Whilesb.was/weredoingsth.,sbwas/weredoingsth.拓展While從句的省略當(dāng)while從句的主語(yǔ)與主句中的主語(yǔ)一致，且從句的謂語(yǔ)含有be的某種形式時(shí)，從句中的主語(yǔ)和be可省略。While(shewas)listeningtomusic,shefellasleep.Whilesarahwastalking,Ifellasleep.二、選擇題()1.Wewereclimbingthemountain

thebigstonesuddenly

landedonthepath.Howdangerous!

A.where

B.whileC.whatD.when(

)2.She

breakfastwhileherfather

newspaper.A.washaving;isreadingB.had;wasreadingC.washaving;readD.washaving;wasreading(

)3.TheSmithswerewatchingTVathome

theyheardsomeone

forhelp.

A.when;shoutingB.While;toshoutC.when;toshout()4.Thestudentstooknotes

theylistened.(）5.Theyarrived______wewerehavingdinner.A.whenB.whileC.assoonasD.where()6.Weweretalking______theteachercamein.A.whenB.whileC.asD.assoonasDDACBA[活學(xué)活用]一、用所給動(dòng)詞的適當(dāng)形式填空。1.Amy_______________(listen)tomusicwhenIcalledher.2.WhenIgotback,I

_______________(find)mymother_______________

(cook)forme.3.ImetTinawhileI_______________

(walk)inthestreet.4.Thestudents_______________(do)morningexercisewhenIpassedbytheirschool.5.Thegirls

_______________(play)volleyballwhiletheboys_______________(play)basketball.waslisteningfoundcookingwaswalkingweredoingwereplayingwereplaying請(qǐng)根據(jù)以下提示，以“AnAccident”為題寫(xiě)一篇文章，描述一起事故。80詞左右。

昨天下午，當(dāng)你正走在路上時(shí)，看見(jiàn)一位老人被一輛從拐角處駛出的摩托車(chē)撞倒。事故原因是摩托車(chē)司機(jī)開(kāi)車(chē)速度過(guò)快，來(lái)不及剎車(chē)。有人打電話(huà)報(bào)警并叫了救護(hù)車(chē)，最后警察和摩托車(chē)司機(jī)一起把老人送到了醫(yī)院。參考詞匯：摩托車(chē)motorbike；撞倒knockover；救護(hù)車(chē)ambulance思維圖體裁記敘文話(huà)題描述一起事故時(shí)態(tài)一般過(guò)去時(shí)和過(guò)去進(jìn)行時(shí)人稱(chēng)第一、三人稱(chēng)段落布局開(kāi)頭：交代事故發(fā)生的時(shí)間、地點(diǎn)以及人物。主體：描述事故發(fā)生的原因和經(jīng)過(guò)。結(jié)尾：可抒發(fā)一下自己的感想。請(qǐng)根據(jù)以下提示，以“AnAccident”為題寫(xiě)一篇文章，描述一起事故。80詞左右。

昨天下午，當(dāng)你正走在路上時(shí)，看見(jiàn)一位老人被一輛從拐角處駛出的摩托車(chē)撞倒。事故原因是摩托車(chē)司機(jī)開(kāi)車(chē)速度過(guò)快，來(lái)不及剎車(chē)。有人打電話(huà)報(bào)警并叫了救護(hù)車(chē)，最后警察和摩托車(chē)司機(jī)一起把老人送到了醫(yī)院。參考詞匯：摩托車(chē)motorbike；撞倒knockover；救護(hù)車(chē)ambulance拆解細(xì)節(jié)

1.事故背景

2.事故原因

3.事故過(guò)程

4.事故結(jié)局5.感想確定句型1.背景：whenI......,Isaw......Whiletheoldman......,acarsuddenly......2.原因：thecarwasso.....thatitcouldn’tstopintime.

或者:Thecarwastoo......tostopintime.3.過(guò)程：thecarhit.......Someonecalled......Thepolice.......arrived.確定句型4.結(jié)局：Thepoliceandthedrivertook......to......atlast.5.感覺(jué)：Ihopetheoldmanwillbe........Ialsohopeallthedriverscan.......AnAccidentYesterdayafternoonwhenIwaswalkingalongtheroad,Isawanaccident.Whenanoldmanontheothersidewascrossingtheroad,amotorbikesuddenlyappearedroundthecorner.Themotorbikewassofastthatitcouldn’tstopintime.Unlckily,Theold