初中英語重點(diǎn)語法：過去進(jìn)行時(shí)的用法和練習(xí)題詳解(2)

　　表存在狀態(tài)和持續(xù)：look，owe，be……

　　when 和while的用法區(qū)別

　　兩者的區(qū)別如下：

　　1.when是at or during the time that， 既指時(shí)間點(diǎn)，也可指一段時(shí)間；

　　while是during the time that，只指一段時(shí)間，因此when引導(dǎo)的時(shí)間狀語從句中的動(dòng)詞可以是終止性動(dòng)詞，也可以是延續(xù)性動(dòng)詞，而while從句中的動(dòng)詞必須是延續(xù)性動(dòng)詞。

　　2.when 說明從句的動(dòng)作和主句的動(dòng)作可以是同時(shí)，也可以是先后發(fā)生；while 則強(qiáng)調(diào)主句的動(dòng)作在從句動(dòng)作的發(fā)生的過程中或主從句兩個(gè)動(dòng)作同時(shí)發(fā)生。

　　3.由when引導(dǎo)的時(shí)間狀語從句，主句用過去進(jìn)行時(shí)，從句應(yīng)用一般過去時(shí)；如果從句和主句的動(dòng)作同時(shí)發(fā)生，兩句都用過去進(jìn)行時(shí)的時(shí)候，多用while引導(dǎo)，如：

　　When the teacher came in， we were talking.

　　當(dāng)此句改變主從句的位置時(shí)，則為：

　　While we were talking， the teacher came in.

　　專項(xiàng)練習(xí)題

　　一.用動(dòng)詞的適當(dāng)形式填空。

　　1.I_____(have) my breakfast at half past six yesterday morning.

　　2.Mary_____(go) over her lessons from six to seven last night. John and peter____(do) the same thing.

　　3.What_____you___(do) at that time？We_____(watch) TV.

　　4.Was your father at home yesterday evening？Yes，he was. He_____(listen) to the radio.

　　5.They_____(not make) a model ship when I saw him.

　　6._____they____(have) a meeting at 4 yesterday afternoon？

　　No， they _____. They _____ (clean) the classroom.

　　7.______it_____(rain) when you left school？ Yes， it____. (No， it____)

　　8.What_____your father_____(do) when he was your age？

　　9.One day， Edison_____(wait) for a train to arrive， and suddenly a little boy ran to the track(軌道) to play.

　　10.He asked me if I______ (go) fishing that afternoon.

　　11.The three of them were in a hurry because their plane _____(leave) in five minutes.

　　12.In a letter， john told us that he_____(come) to china next month.

　　13.When the bell rang， jenny_____(wait) in her seat.

　　14.She_____ (make) her dress the whole afternoon.

　　15.While my father____ (look) through the evening paper， he suddenly____ a cry.

　　二.選擇題。

　　1.I ______ cooked a meal when you _____ me.

　　A.cooked， were ringing

　　B. was cooking， rang

　　C. was cooking， were ringing

　　D. cooked， rang

　　2.He said he_____to draw a plane on the blackboard at that time.

　　A.tries

　　B.tried

　　C.was trying

　　D.will try

　　3.While she ______ TV， she ______ a sound outside the room.

　　A.was watching， was hearing

　　B.watched， was hearing

　　C.watched， heard

　　D.was watching， heard

　　4.They _____ a football game from 7 to 9 last night.

　　A.were watching

　　B.watch

　　C.watched

　　D.are watching

　　5.What book ____ you ______ when I ____ you at four yesterday afternoon？

　　A.did， read， was seeing

　　B. did， read， saw

　　C.were， reading， saw

　　D.were， reading， was seeing

　　6.It was Friday evening. Mr and Mrs. Green _____ ready to fly to England.

　　A.are getting

　　B.get

　　C.were getting

　　D.got

　　7.Lei Feng _____ always _____ of others when he ______ in the army.

　　A.is， thinking， was

　　B.was， thinking， is

　　C.did， think， is

　　D.was， thinking， was

　　8.A girl ______ my pen fall off the table when she _____ me.

　　A.saw， passed

　　B.was seeing， passed

　　C.was seeing， passed

　　D.was seeing， was passing

　　9.We____for tom at ten last Sunday.He often kept us ______.

　　A.were waiting， waiting

　　B.were waiting， wait

　　C.waited， waiting

　　D.waited， wait

　　10.He ____ his father on the farm the whole afternoon last Saturday.

　　A.helps

　　B.would help

　　C.was helping

　　D.is helping

　　11.While mother _______ some washing， I _____ a kite for Kate.

　　A.did， made

　　B.was doing， made

　　C.was doing， was making

　　D.did， was making

　　12.“_______ you angry then？”“they ______ too much noise.”

　　A.are， were making

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