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初中英语一般过去时知识点-三种变化技巧

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发表于 2016-6-28 22:14:54 | 显示全部楼层 |阅读模式
  为了方便同学们学习,下面小编精心为大家整理了一般过去时知识点-三种变化技巧,供大家参考学习,希望对同学们的学习能有所帮助。
          一变:肯定句变为否定句
          【技巧1】当句中含有情态动词或助动词could,would,should等时,可直接在其后面加not构成否定句。例如:
          I could get you a concert ticket. → I could not / couldn't get you a concert ticket.
          【技巧2】当句中含有系动词was,were 时,可直接在其后加not构成否定句。例如:
          I was on the Internet when you called me. → I was not / wasn't on the Internet when you called me.
          【技巧3】当句中谓语是除情态动词、助动词、系动词was,were以外的动词时,在该动词之前加did not / didn't,动词还原,构成否定句。例如:
          The famous singer sang some Chinese songs. → The famous singer did not / didn't sing any Chinese songs.
          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 / what time,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
          以上就是小编为大家准备的一般过去时知识点-三种变化技巧,希望能对大家有所帮助。同时也能把英语学好,学精。
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