初中八年級(jí)英語課件過去進(jìn)行時(shí)

Unit5Whatwereyoudoingwhentherainstormcame?

難點(diǎn)名稱：過去進(jìn)行時(shí)

八年級(jí)下冊(cè)第五單元參賽教師：李佳璐時(shí)間：2020.8.10導(dǎo)入01知識(shí)講解02課堂練習(xí)03小結(jié)04目錄/contents010203學(xué)習(xí)目標(biāo)掌握過去進(jìn)行時(shí)的概念及結(jié)構(gòu)掌握過去進(jìn)行時(shí)的用法正確使用連詞when和whileI

posted

a

notice

on

the

WeChat

group

at

9:00

pm

last

night,

but

3students

didn’treply.Whatweretheydoingthen?Tom:IwaswatchingTVat9:00pmlastnight.Jerry:Iwasplayingcomputeratthattime.Lily:Iwastakingabathwhenyouposted

a

notice.過去進(jìn)行時(shí)（Pastcontinuoustense）表示過去在某一時(shí)刻或某一段時(shí)間內(nèi)正在進(jìn)行的動(dòng)作或存在的狀態(tài)。定義結(jié)構(gòu)主語+be(was/were)+動(dòng)詞的現(xiàn)在分詞Iwascookingat8:00pmyesterday.過去進(jìn)行時(shí)的用法表示過去某一時(shí)刻正在進(jìn)行的動(dòng)作：eg.Iwasdrawingatthattimeyesterday.表示過去某一時(shí)間段內(nèi)正在進(jìn)行的動(dòng)作:eg.Iwasreading

lastnight.表示一個(gè)動(dòng)作發(fā)生時(shí)，另一個(gè)動(dòng)作正在進(jìn)行:eg.When

mymumcamehome,Iwassleeping.表示一個(gè)動(dòng)作正在進(jìn)行,另一個(gè)動(dòng)作突然發(fā)生:eg.WhenIwaswalking,itrained.表示兩個(gè)動(dòng)作同時(shí)進(jìn)行.eg.WhileIwassweepingthefloor,shewascooking,時(shí)間狀語標(biāo)志：atthis（that）time+過去時(shí)間at+過去時(shí)間點(diǎn)thosedaysfrom...to...+過去時(shí)間when/while引導(dǎo)的時(shí)間狀語從句when和while使用時(shí)到底有什么區(qū)別呢？When和while的區(qū)別WhenIarrivedathome,mymumwascooking.主句的動(dòng)作時(shí)持續(xù)的，而從句的動(dòng)作是短暫的，此時(shí)用_________引導(dǎo)時(shí)間狀語從句，主句用_________時(shí)態(tài)，從句用________時(shí)態(tài)。when過去進(jìn)行一般過去主句從句短暫性動(dòng)詞（短動(dòng)作）延續(xù)性動(dòng)詞（長(zhǎng)動(dòng)作）When和while的區(qū)別2.Iarrivedathomewhilemymumwascooking.主句的動(dòng)作是短暫性的，從句的動(dòng)作是持續(xù)性的，此時(shí)用___________引導(dǎo)從句，主句用_________時(shí)態(tài)，從句用__________時(shí)態(tài)。while一般過去過去進(jìn)行從句主句When和while的區(qū)別3.IwaswatchingTVwhilemymotherwascooking.主句和從句的動(dòng)作在過去的某時(shí)刻或某時(shí)段同時(shí)發(fā)生，而且動(dòng)作都是持續(xù)性的，此時(shí)用________引導(dǎo)從句，并且主句和從句都用___________時(shí)態(tài)。while過去進(jìn)行主句從句長(zhǎng)動(dòng)作長(zhǎng)動(dòng)作當(dāng)過去的兩個(gè)動(dòng)作同時(shí)發(fā)生，有長(zhǎng)有短長(zhǎng)動(dòng)作（延續(xù)性動(dòng)詞）----過去進(jìn)行時(shí)短動(dòng)作（非延續(xù)性動(dòng)詞）-----一般過去時(shí)when—長(zhǎng)和短while—長(zhǎng)When和while的區(qū)別例外：兩個(gè)長(zhǎng)動(dòng)作用while口訣：長(zhǎng)過進(jìn)

短一過WhenIarrivedathome,mymumwascooking.2.Iarrivedathomewhilemymumwascooking.

Iarrivedathomewhenmymumwascooking.3.IwaswatchingTVwhilemymotherwascooking.鞏固練習(xí)2.Sallytookaphotoofherfriendswhilethey________computergames.A.playB.areplaying

C．haveplayed D.wereplaying

1.—Isawthelightofyourroomwasstillonattwoo’clocklastnight.—Oh,I_____afootballmatchoftheRussiaWorldCup.A.watchedB.waswatchedC.amwatchingD.waswatching時(shí)態(tài)題做題方法：1.找時(shí)間標(biāo)志詞2.確定所用時(shí)態(tài)3.若沒有時(shí)間標(biāo)志詞，根據(jù)語境判斷3._________Iarrivedattheairport,theplanewastakingoff.（when/while）When鞏固練習(xí)4.Hefellasleep__________hewasreading.

（when/while）whileSummary

小結(jié)過去進(jìn)行時(shí)（Pastcontinuoustense）表示在過去某一時(shí)刻或某一段時(shí)間內(nèi)正在進(jìn)行的動(dòng)作或存在的狀態(tài)。定義：結(jié)構(gòu)：_________________________________(was用于___________,were用于_________和_____)時(shí)間狀語：___________________________________________________________________________________________________________________________主語+be(was/were)+動(dòng)詞的現(xiàn)在分詞單數(shù)主語復(fù)數(shù)主語youat+具體時(shí)間點(diǎn)+一般過去時(shí)時(shí)間狀語atthattime/atthistimewhen/while引導(dǎo)的時(shí)間狀語從句thenSummary

小結(jié)過去進(jìn)行時(shí)的用法：（1）表示過去某一時(shí)刻正在進(jìn)行的動(dòng)作。（2）表示一個(gè)過去的動(dòng)作發(fā)生時(shí)，另一個(gè)過去的動(dòng)作正在進(jìn)行。(也表示一個(gè)動(dòng)作正在進(jìn)行,另一個(gè)動(dòng)作突然發(fā)生)（3）表示兩個(gè)過去的動(dòng)作同時(shí)進(jìn)行，這時(shí)可用while連接。Summary

小結(jié)When和wh