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2018中考英语时态知识点:一般过去时三种变化技巧(2)

2018-04-16 21:24:44中考网编辑
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   二变:陈述句变为一般疑问句

    【技巧1】移动词语的位置。将was,were,could,would,should等移到句首。例如:

    He could pack his things himself.→Could he pack his things himself?

    【技巧2】添加助动词did。谓语是除情态动词、助动词、系动词was,were以外的动词时,在主语之前加did,动词还原。例如:

    Mr Li looked very old.→Did Mr Li look very old?

    三变:陈述句变为特殊疑问句

    【技巧1】确定疑问词:人who/whom,物what,地点where,时间when/whattime,原因why,频率how often,长度how long,距离how far等等。例如:

    They gave the concert last night.→When did they give the concert?

    【技巧2】辨认结构形式:疑问词+情态动词/助动词/was/were/did+主语+...?例如:

    The accident happened near the station.→Where did the accident happen
 

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