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2020陕西教师考编英语学科考点之情态动词表 “ 应当、许可

[db:来源] | 2020-10-26 00:00

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  2020陕西教师考编英语学科考点之情态动词表 “ 应当、许可 ”

  (1)may 与 might

  —May/might I swim here?

  —Yes, please. / Yes, you can. /Certainly.

  —No, you can’t /mustn’t. It’s too dangerous.

  (2)can 与 could

  两者都表示 “ 可以 ”,使用过去式时,无时态差别,只是更礼貌些。例如:

  Can/Could I sit here?

  【24】情态动词 + 虚拟语气

  重点考查四种形式:埋怨语气

  (1)should /ought to have done 与 shouldn’t/ought not to have done 表示 “ 本应该做而未做 ”与 “ 本不应该做而做了 ”

  She should/ought to have attended your party, but she had to look after her mother. 她本应该参加你的聚会,但是她必须照顾她的妈妈。

  ② needn’t have done 表示 “ 本来不必做某事而实际上做了 ”

  You needn’t have left so early. It’s 6 o’clock. 你本不必这么早就离开,才六点。

  ③ could have done 表示 “ 本来可以做而实际上未能做 ”

  He could have passed the exam, but he was too lazy. 他本能够通过考试,但是他太懒了。

  ④ may / might have done 表示 “ 本可能做而实际上未做 ”

  She might have achieved success, if she had tried her best. 如果她全力以赴的话,她本有可能取得成功的。

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