内容正文:
英 语
教与学 学导练
教与学 学导练 英语 八年级 上册 配外研版(内文)
Module 8 Accidents
Unit 3 Language in use
目录
语法聚焦
01
课堂小测
02
课后作业
03
语法聚焦
过去进行时(2)
过去进行时可以与when, while, as引导的过去时间状语连用,形成复合句。
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引导词 用法 举例
when 所引导的时间状语既可以是时间点,也可以是时间段,因此从句中的谓语动词既可以是终止性动词,也可以是延续性动词 When I was cooking, my mobile phone rang.当我在做饭的时候,我的手机响了。(cooking为延续性动词)
Henry was trying to pick it up when it bit him again.亨利正试图捡起它时,它又咬了他一口。(bit为终止性动词)
如果主句用过去进行时,从句用一般过去时,则表示主句动作正在进行的时候,从句动作(突然)发生了,强调了从句动作发生的突然性 I was playing computer games when my father got home.我正在玩电脑游戏,我爸爸回来了。(got home 为突然发生)
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引导词 用法 举例
while 所引导的时间状语只能是时间段,所以从句中的动词必须是延续性动词 While we were dancing,a stranger came in.当我们正在跳舞时,一位陌生人走了进来。(dancing为延续性动词)
既可以表示主句的动作在从句的动作进行的期间发生,也可以表示两个动作同时在进行,此时主句和从句的动词都为延续性动词 My mother was cooking while I was doing my homework.当我在做作业的时候,我妈妈正在做饭。(cooking和doing同时在进行)
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引导词 用法 举例
as 所引导的时间状语既可以是时间点,也可以是时间段,所以从句中的谓语动词既可以是终止性动词,也可以是延续性动词,在许多情况下相当于when As the doctors were checking him, the pain got worse.医生给他做检查时,疼痛加剧了。(checking为延续性动词)
He sat watching her as she got ready.他一直坐着看她准备好。(got为终止性动词) 只能表示从句和主句的两个动作同时发生I saw him as I was coming into the building.我进楼时看到了他。(saw和coming同时发生)
当表示“随着”时,只能用as,不能用when或while代替 As years went by, the tree became older and older.随着时间一年年过去,这棵树越来越老了。
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引导词 用法 举例
【相同点】当从句动作和主句动作同时发生时,且从句的谓语动词为延续性动词时,when, while, as都可使用
【不同点】当从句和主句的谓语动词都是延续性动词时,两句都要用过去进行时的时候,多用while引导;而当主句用过去进行时,从句用一般过去时的时候,只能选用when或as来引导
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( )1.When I was listening to music, my mother suddenly ______ the door.
A.was opening B.opens C.opened
( )2.As I ______ down the street, I noticed a police car in front of the bank.
A.walk B.was walking C.am walking
C
B
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( )3.While Tom ______ his homework, his mother came in with an apple.
A.did B.is doing C.was doing
( )4.Ruby ______ photos while her father was washing a car.
A.was taking B.took C.will take
C
A
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( )5.—How did the accident happen?
—The girl ______ on the phone while she was walking across the road.
A.talks B.was