第3讲. 助动词和情态助动词复习要点完整版课件.ppt

Unit 7. Auxiliaries 助动词 Page 252 情态动词 Page 268 情态动词表示可能时，程度有所不同，请参照下图： 情态动词补充练习另附Word版 7. 你本应该立即通知我的。 8. 她说她可能误了航班。 9. A: Catherine, I have cleaned the room for you. B：Thanks. _________________________(你不必 打扫的). I could handle it myself. You could/might/should/ought to have informed me at once. She said she may/migh have missed the plane. You needn’t have cleaned it. 二、情态动词的非推测性用法 可能 必须 must 可能 应当，应该做 should/ought to 推测 意志，意愿 will /would 可能 能，可以 can/could 可能 可以 may/might 推测性用法 非推测性用法 情态动词 接下来分析各个情态动词之间的差别 1. will would P260 261 1) 表示请求时可以通用，也可用won’t, 而 would 更委婉。 Will you give her the letter? Would you please tell me your phone number? Won’t you sit down? 2) 表示命令、强迫等只用will, 用于所有人称。 All will arrive before 8:00. Go and get the newspaper, will you? P261第3) d 3) will 和would可表示主语的强烈意志、主张或固执 坚持。意义：“无论如何总要”， 否定形式为 won’t, wouldn’t I will marry you whatever happens. The manager would have his own way. 经理总是一意孤行。 That window wouldn’t open. 相对于would来说, will 表示将来的意志，意愿。 P260第3) a, b 4) 表示习惯，倾向 She will sit there for hours, waiting for her son to come home. when he was young he would often walk in the wood. 5) will do或者would do表示能解决问题，就行 Either pen will do. It wouldn’t do. (指过去) It would not do to work too late. P260第3) c 2. shall 的形式和用法 P264 1) shall 用在主语是第一人称或第三人称的疑问 句中，表示说话人征求对方的意见. Shall I come in? 要我进来吗？ May/Might/Can I come in? 我可以进来吗？ shall 表示愿意按对方的意思去做; may/might/can 表示征求对方的同意，意为“行不 行，好不好，可以不可以” 2) shall 用在主语是第二人称或第三人称的陈述句 中，表示说话人给对方的的意志、命令、许诺。 在法律、条约里面经常用shall表示义务、规定。 The time shall come when they shall be avenged. You shall not smoke here. She shall get this paper in the evening. Candidates shall remain in their seats until all the papers have