高中英语语法之常见情态动词七大考点

高三语法复习之 情态动词（七个考点） 　 常用的情态动词 can （could） may（might） shall（should） will （would） must（must） dare （dared） need （need） have to ought to be able to used to had better 在情态动词的使用中, 我们要注意以下考点: 1. 表示推测的情态动词的使用。 2. 表示征求的情态动词的用法。 3.虚拟语气中情态动词的使用。 4.情态动词短语的使用 5. Dare 和 need 的用法。 6. 情态动词的特殊用法 7.部分情态动词的问与答 1.表示推测———情态动词的重要用法. 1.我当时没有听到电话，我肯定是睡着了 I didn’t hear the telephone then .I must have fallen asleep then. 2. 他现在不可能在家。 He can’t be at home now. 3.他也许正在考虑这个问题。 He may be thinking about the problem. 肯定，一定 可能，也许 不可能 可能吗？ must 对 现在状态 对现在正在 对过去 情态动词 may, might can’t, couldn’t can, could + do. 常见must be + do. + have done + be doing 可以用not表示“可能不” +do. + have done + be doing + do. + have done + be doing + be doing + have done 区别 Can’t( can not) May not ———Is Tina leaving by bus? ———She should, but she ___ not. A must B may C need D can 不可能(肯定不) 可能不 典型错误 1. He mustn’t be in the classroom. ( ) Can’t 2. You might leave the bag on the bag. ( ) might have left 3. You must have seen the film last week, have’t you? ( ) didn’t you 4. Li ming must have been to Japan, didn’t he? (hasn’t he) 1.--Are you coming to Jeff’s party? --I’m not sure. I __ go to the concert instead. A.must B.would C.should D.might D 2.Sorry, I’m late. I ____ have turned off the alarm clock and gone back to sleep again. A.might B.should C.can D.will A 3.My English-Chinese dictionary has disappeared. Who ___ have taken it? A.might B.must C.could D.would C 表示 征求: 2. 表示征求意见的情态动词的用法。 1.Can ,may ,might ,could 各种人称could ,might 提问语气婉转，回答用can ,may 2.Will ,would 用于第二人称。 Will you join us in singing? 3.Shall 第一，三人称 Shall I lead him to your office? 1. — Could I borrow your dictionary? — Yes, of course you _____. A. might B. will C. can D. should 2. — Might I watch TV after supper? — Yes, you _____. A. may B. must C. might D. can C A 3.--The room is so dirty.____ we clean it? --Of course. A.Will B.Shall C.Would D.Do B 3. 用于虚拟语气的情态动词: should/ ought to have done shouldn’t / oughtn’t to have done might / could have done needn’t have done 本应该做……（但事实没做） 本来不应该做……（但事实却做了） 本来可以做……（但事实没这样做） 本来不需要做……（但事实却做了） 1. I was really anxious about you. You ___ home without a word. A. mustn’t leave B. shouldn’t have left C. couldn’t have left D. needn’t leave 2. There was a lot of fun at yesterday’s party. You ___ come, but why didn’t you? A. must have B. should C. need have D. ought to have B D 3.—I stayed at a hotel while in New York. --Oh, did you? You ___ with Barbara. A.could have stayed B.could stay C.would stay D.must have stayed 4.I told Sally how to get here, but perhaps I ____ for her. had to write it out B. must have written it out C. shou ... ...