MU语法情态动词课件.ppt

表示否定的情态动词的用法: 部分情态动词的否定式是情态动词中的考点 之一。 mustn’t needn’t can’t may not shouldn’t 不准, 禁止 没必要 ( = don’t have to ) 不能; 不可能 不可以; 可能不 不应该 ( = ought not to ) He must be reading, ____ he? You must do it yourself, ____ you? He must have gone over the article, ______he? It must have rained last night, _____ it? 表猜测语气的反意疑问句的构成 isn’t don’t hasn’t didn’t 补充 * * 3.表示习惯性动作。 译作 “总是、惯于” will 指现在， would 指过去。 Eg: 1)He will often read all night. 2) Fish will die without water. 3) Every evening, she would sit by window, deep in thought. 4. 表示功能，译作“能、行” Eg: 1) That will be all right. 2) This door won’t open. 5. 用于否定句中，表示“不肯、不乐意” Eg: No matter what I said, he won’t listen to me. 4. should 1. 用于表劝告、建议。 意为”应该、应当”。 Eg: 1)You should keep your promise. 2)You should pay for your taxes. 2. 用于表推测。 意为 “可能、该…” Eg: 1) It’s 7 o’clock, he should be at home. 2) They should have arrived by now. (1).I can’t believe，such a gentleman like him should be so rude to an old man. (2).To our surprise ,he is a thief. 3.Should 表示惊讶和难以置信,表示说 话人的感情(惊奇、愤怒、失望等)“竟然，居然” 。 补充 5. shall 1. Shall 与第一、三人称连用，且用在疑问句中时， 表说话人征求听话者的许可,请示意见。 Eg: 1) Shall we begin our discussion? 2) Shall the driver /he wait? 3) Will you speak louder, please? 比较：Will 与第二人称连用，且出现在疑问句中时，表示请求。 Would 更客气 2. shall的主语是第二、三人称的陈述句，表示说话人 的允诺、警告、命令等语气。 (will 的主语是第一、二、三人称的陈述句， 表意志、意愿。) Eg: 1)You shall get the book tomorrow. 2) If you dare do that, you shall be punished. 3) You shall go with me. 允诺 警告 命令 (3)在条约、规章、法令等文件中表义务或规定，一般用于第三人称。‘应，必须’ 指示，预言等。 The new regulation shall take effect on June 1st. 补充 “The interest ______be divided into five parts, according to the agreement made by both sides.　A. may B. should C. must D. shall — The room is so dirty. _____ we clean it? — Of course. A. Will B. Shall C. Would D. Do 上述两题均考查 shall的非常用含义，当shall 用于一、三人称疑问句中时，表示征求对方意见；用于二、三人称陈述句中，表示说话人给对方的命