Unit5過去進(jìn)行時(shí)與過去時(shí)的區(qū)別課件人教版英語八年級(jí)下冊(cè)

初中英語時(shí)態(tài)區(qū)別之

（一）過去進(jìn)行時(shí)與一般過去時(shí)的區(qū)別

過去進(jìn)行時(shí)

一般過去時(shí)1.概念：

過去時(shí)：

1）

表示過去“做過/了某事”2）

表示過去“經(jīng)常做某事”

過去進(jìn)行時(shí)：

表示過去某個(gè)時(shí)間點(diǎn)或過去某一段時(shí)間正在

做某事2.結(jié)構(gòu)：

過去時(shí)

過去進(jìn)行時(shí)

肯定句否定句問句主語+was/were+其它...主語+動(dòng)詞（過去時(shí)）+...Was/Were+主語+其它.?Did+主語+動(dòng)原+....?

Yes,...was/were.

...did.No,..wasn’t/weren’t...didn’t.主語+was/werenot+其它.主語+didn’t+動(dòng)原+其它.肯定句否定句問句-主語+was/weredoing+....-主語+was/werenotdoing+....-Was/Were+主語+doing+...?Yes,...was...were.No,....wasn’t....werenot.3.時(shí)間詞過去時(shí):yesterday,lastnight/year/month

twodaysago,in2020,justnow

過去進(jìn)行時(shí):atninelastnight,

atthattime,then

atthistimeyesterday,(點(diǎn)鐘+過去時(shí)間詞）判斷思路：1.意思或語境2.時(shí)間詞3.體會(huì)：是“做了”還是“在做”(一）A:What_______you______(do)lastnight,Jim?B:I________(help)mymotherdothedishesand___________(watch)TV,afterthenI______(do)myhomework.A:Well,what______you__________(do)at7:20B:I______________(watch)newsonTVatthattime.

diddo

helpedwatcheddidweredoing

waswatching（二）1.--Why______you________(notanswer)myphonelastnight?--Sorry,I______________(water)flowersinthegardenatthattime.2.--Why_______thecar_________(hit)theboy?----Becausethedriver___________（talk)onthephoneatthattime.didn’tanswer

waswateringdidhit

wastalking3.--I_______(see)youandTominthelibraryjustnow.--Oh,we_______________(show)sereralvisitorsaroundtheschoolatthattime.4.We_____________(play)footballontheplaygroundatthetimeoftherainstorm.saw

wereshowing

wereplaying

WhenWhile

when:時(shí)間點(diǎn)，時(shí)間段。

動(dòng)作可以先后發(fā)生，也可以同時(shí)發(fā)生

when＋從句（動(dòng)作可以短暫性，也可延續(xù)性動(dòng)詞）while：只指時(shí)間段。

強(qiáng)調(diào)主句動(dòng)作在從句動(dòng)作發(fā)生的過程中，也可以是主從句動(dòng)作同時(shí)發(fā)生。

while＋從句（延續(xù)性動(dòng)詞）

短暫性詞時(shí)，用過去時(shí)，延續(xù)性詞時(shí)，用過去進(jìn)行時(shí)When主句（延續(xù)性詞－進(jìn)）when＋從句（短暫性詞－過去時(shí)）

when（延續(xù)性詞－進(jìn)），主句（短暫性詞－過去時(shí)）＝主句（短暫性詞－過）when（延續(xù)性詞－過去進(jìn)行）While

While＋從句（延續(xù)性詞－進(jìn)），主句（短暫性詞－過）＝主句（短暫性詞－過）While＋從句（延續(xù)性詞－進(jìn)）

While＋從句（延續(xù)性詞－進(jìn)），主句（延續(xù)性詞－進(jìn)）

所以，主從句同時(shí)進(jìn)行時(shí)，一般用“while”找出“延續(xù)性詞”“短暫性詞”1.Whenwe____________(have)dinner,myuncle______(arrive).2.Mymother______________(wash)thedisheswhenI_____(get)homeyesterday.3.I____________(eat)dinnerwhentheearthquake____________(happen).4.I___________(walk)inthestreetwhensomeone___________(call)me.5.

Whenhe_____________（shop)inthesupermarket,he_______(meet)oneofhisfriends.

werehavingarrivedwaswashinggot

waseatinghappenedwaswalkingcalled

wasshoppingmetwasreadingcamecamewasplayingfellwasdying

waswatchingwasreading

用when,while填空判斷從句謂語動(dòng)詞是延續(xù)性還是終止性動(dòng)詞1.Wewerewatchingbasketballgame______________itrainedhearvilysuddenlyyesterday.2.________hemethisteacher,theteacherwastalkingtohismother.2.Jackwashelpingmumcleantheroom_________hiseldsisterwaswashingclothesyesterdaymorning.3.Herpetdogwaslost__________shewasdancinglastnight.whenWhenwhilewhile/whenwasvisiting

wastaking

noticedcamebrokefellwasthinking

I_________(explain)tohimwhatthappened.Andwhen