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2014年职称英语考试基础语法综合复习(79)

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17.陈述部分用had better +原形动词表示建议时,问句部分用hadn’t +主语?形式。

①You’d better tell him about the matter, hadn’t you?

②We had better do it by ourselves, hadn’t we?

18.陈述部分用used to +主语时,问句部分用didn’t + 主语?或usedn’t +主语?形式。

①He used to live in the country, didn’t he?/usedn’t he?

②They used to be good friends, didn’t they?/usedn’t they?

19.陈述部分用must(may, might) + have + V-ed表示推测时,若句中带有明显的过去时间的状语,问句部分动词用过去时形式。如:

①He might have forgotten his pen in the classroom yesterday, didn’t he? (不用mightn’t he?/ hasn’t he?)

②You must have got up late this morning, didn’t you?(不用mustn’t you?/haven’t you?)

20.陈述部分用must(may, might) + have + V-ed表示推测时,若句中没有带明显的过去时间的状语,问句部分动词用现在完成时形式。如:

①Everyone must have known the death of the waitress, haven’t they? (不用mustn’t they?)

②You must have worked there a year ago, didn’t you?(不用mustn’t you?/ haven’t you?)

21.陈述部分的主语为从句时,问句部分的主语一般用it代替,如:

①What he said is true, isn't it? (不用didn’t he?)

②Where we will build the dam has not been decided yet, has it? (不用won’t we?)

22.陈述部分的主语为动名词或不定式时,问句的主语用it代替。如:

①To do one good deed is easy for a person, isn't it?

②Skating is your favorite sport, isn't it?

23.陈述部分的主语是不定代词one,反义疑问句的主语可以用one,也可以用you。如:One should be ready to help others, shuldn’t one?

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2014年职称英语考试基础语法综合复习汇总五

2014年职称英语考试基础语法综合复习汇总三

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