[2014高考语法讲解视频]2014高考语法讲解：情态动词的可考用法（2）

[2014高考语法讲解视频]2014高考语法讲解：情态动词的可考用法（2）

      ②may 与 might
      1）经常用于表示目的或让步的状语从句中；
      Write to him at once so that he may know in time.
      However much they may desire it they cannot express their sympathetic feelings.
      Try as he may, he will not pass the examination.
      He swore that, come what may, he would never let her know what he was doing for her sake.
      No matter how loudly you may shout, you won′t be heard.
      2）经常用来构成倒装句型，表示祝愿；
      May you have a long and happy life!
      May there never be another world war!
      May all your dreams come true!
      May God bless you!
      3）经常用于may / might as well 短语中，短语意为“不妨 …… ”，用来提出建议等；
      If that is the case, I may as well try.
      Since it′s a fine day we might as well walk.
      Then you might as well stay with us here.
      Well, now you are here, you may as well make yourself useful.
      4）经常用于may … but… 短语中，短语意为“或许…… 但是……”，前面部分接近一个让步状语从句。
      He may be poor but he is honest.
      He may be clear, but he doesn′t know everything.
      ③must
      1）经常与进行时连用，表示“必须立即 …… ”，“将不得不……”等含义；
      I am afraid I must be going.
      She was nearly grown up and must soon be looking after herself.
      2）意为“（干吗）偏要……，硬要……”
      Must you shout so loudly?
      Of course, after I gave her my advice, she must go and do the opposite.
      Just when we were ready to go away for the holidays, the baby must catch measles.
      ④shall与 should
      ■shall
      1）经常用于第一、三人称，构成疑问句，征求对方意见或请求对方允许。用于第三人称时，实质上是替别人征询意见或许可；
      Shall the boy come in, Mr. Smith?
      Shall the taxi-driver wait outside?
      Shall he begin to work, director?
      --- Shall we sit here?  --- We may as well.
      I will be there at 3:00, shall I?
      2）经常用于各种人称，表示许诺；
      I promise you shall see her again before long.
      If you work hard you shall have a holiday on Saturday.
      You shall have the money as soon as I get it.
      You shall hear everything directly you come.
      3）经常用于各种人称，表示命令、威胁或规定；
      If you children won′t do as I tell you, you shan′t go to the party.
      He shall suffer for this.
      She shall do as she is told.
      Shall he leave tomorrow? Yes, he shall.
      Each competitor shall wear a number.
      Houses owners shall keep their gardens in a neat and orderly state.
      4）经常用于各种人称，表示决心（表示一定会发生某事），体现一种强烈愿望；
      That day shall come.
      It has been decided that he shall be given the job.
      ■should
      1）经常用在某些从句中，表示惊异或不以为然等情绪（有时译为“竟然”）；
      I cannot think why he should have said that; it was my fault.
      It seems so unfair that this should happen to me.
      It was not right that such near neighbors should not know one another.
      Why should you talk to her like that?
      2）经常用在so that，lest，in case等引起的从句中；
      She stood away so that he should enter the room first.
      They trembled lest the father should hear of it.
      I will keep a seat for you in case you should change your mind.
      3）经常用来表示估计或推断的情况（可译为“照理应当”，“估计……”）；
      They should be there by now, I think.
      We needn′t get ready yet; the guests shouldn′t come for another hour.
      4）经常用于下列句型中：
      I should like …           我想（做某事）
      I should have thought …   我还以为（表示惊异）
      I should like a bath.
      20degrees? I should have thought it was colder than that.

本文来源：https://www.oubohk.cn/gaokao/230444/