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例:昨晚我在读一本故事书。

   I read (read) a story book yesterday evening.

答案:was reading

解析:这两种时态的共同点是都用于表示过去发生的动作。但过去进行时强调动作正在进行,而一般过去时则表示过去某一时间所发生的动作或存在的状态,它表示的动作往往已经完成。“在”说明正在进行,而“I read a story book yesterday evening.”的意思是昨晚我读了一本故事书,言下之意已经读完了。故用过去进行时。

另外,在宾语从句中当主句为过去时,从句若是现在进行时,需变成过去进行时。

   e.g. He said that he was drawing a cat at noon yesterday.

专项训练:

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例:My mother is cooking (cook)when I got home.

答案:was cooking

解析:这两种时态的共同点是都表示动作正在进行,但现在进行时前提是现在,而过去进行时前提是过去,由when I got home可看出前提是过去。

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例:We were flying kites at 5:00 p.m. yesterday. (对划线部分提问)

   What were you at 5:00 p.m. yesterday?

答案:What were you doing at 5:00 p.m. yesterday?

解析:现在进行时中“What……doing……”?句式同样适用于过去进行时。

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例:1 I watching (watch) TV when he came in.

   2 They were play (play) games at 5:00 p.m. yesterday.

   答案:1 was watching  2 were playing

   解析:现在进行时中“be+现在分词,缺一不可”的规律也可应用于过去进行时。

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   例:He was talked (talk) to his mum at that time.

   答案:was talking

   解析:过去进行时与现在进行时结构上的区别体现在be动词上。

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   例:Li Ming with me are (be) in Beijing.

   答案: is

   解析:表面一看是“我和李明两个人在北京”,但with在此做伴随状语,不能做主语,故用is.

   另外,宾语从句中,从句部分若是表示客观真理,不管主句是何时态,从句都要用一般现在时;在时间和条件状语从句中,主句表将来,从句要用一般现在时。  

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   例:We don’t (not do) our homework in the afternoon.

   答案:don’t do

   解析:do是一个比较难理解的词,它有三个含义:  a)是所有行为动词的总称;b)是助动词,无实义;c)是一个具体的行为动词“做,干”。此句中给出的do指“做,干”,not指把此句变为否定句,故须在do前加助动词don’t。

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   例:1 Does Jenny has (has) a good friend?

   2 Brian doesn’t lives (not live) in China.

   答案:1 Does  have   2 doesn’t live

   解析:单三人称做主语的一般现在时做句式变化时,可记住如下口诀:“见助动,用原形”。此口诀也可推广用于一般过去时态中。e.g. He didn't go home yesterday.

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   例:1 He plaies (play) football very well.

   2 Danny gos (go) to school at 7:10.

   答案:1 plays  2 goes

   解析:1以辅音字母加y结尾的动词变单三人称形式才能把y换成i再加es;2与名词变复数不同,变单三人称形式以o结尾的词要加es.

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   1 I can take Li Ming there when he _____  ( come) to visit.

   2 _____your sister_____(know)English?

   3Her home____  _____  ______(远离 )her school.

   4The pot_____(not look) like yours very much.

   5 Where _____you____(have)lunch every day?

   6 Who_____(想要 )to go swimming?

   7 ______she_____(do) the housework every day?

   8 Jenny and Danny usually______(play) games in the afternoon .

   答案:1 comes  2 Does  know  3 is away from  4 doesn't look     5 do have  6 wants  7 does  do  8 play

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