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课件网) 情态动词 Modal verbs 主要的情态动词： 1. can & could 2. will & would 3. may & might 4. should 5. shall 6. must 7. need Modal verbs 1. can & could的用法 1). 表示请求和允许：could的语气更委婉；但回答时通常用can，不用could。 eg: Can/Could I use your car 我可以用你的车吗？ Yes, you can./No, you can’t. eg:You can take the book home. 你可以把这本书带回家。 Modal verbs 1. can & could的用法 2). 表示能力：即能做某事；can表示现在或将来，could表示过去； eg: I can’t do it now, but I can do it later. 我现在不能做，但是稍后可以做。 eg:She can swim, but she couldn’t last year. 她会游泳，但是去年还不会。 eg:Who can answer the question？ 谁能回答这个问题？ Modal verbs 1. can & could的用法 3). 表示可能性：可以或可能做某事 eg:I’m afraid I can’t go with you. 我恐怕我没法和你一起去。 eg:It was so dark that we could see nothing. 天那样黑，我们什么也看不见。 Modal verbs 1. can & could的用法 4). 表示可能：用于否定句和疑问句 eg: That can’t be Mary -- she’s in hospital. 那个不可能是玛丽，她在住院。 eg:There is someone outside -- who can it be 外面有人，这能是谁呢？ Modal verbs 1. can & could的用法 注意：could+have done 是对过去本来能做而未做的事而感到惋惜和遗憾，表示“本可以，本能够” eg: He could have made a fortune as a lawyer. 他本可以当律师挣大钱的。 eg:He didn’t regret saying what he did but felt that he could have expressed it differently. 他并不后悔说了自己做的事，但觉得本可以换一种方式表达 Back Modal verbs 2. will & would的用法 1). 用于第二人称的疑问句中，表示请求、建议。would/won’t的语气较will更委婉，不表示时态。 eg: Will you please sit down, everybody 请大家坐好。 eg:Won’t you take off your overcoat 你要不要把大衣脱掉？ eg:Let’s fix a day. Would Saturday night suit you 咱们来定个日子，星期六晚上合适吗？ Modal verbs 2. will & would的用法 2). 用于各个人称：表示意愿、意图、决心、承诺、预测、习惯、倾向等 eg: On summer evenings they would sit out in the garden. 夏天的晚上他们经常坐在外面的花园里。(习惯) eg:Which coat will you buy 你要买哪一件大衣？(意图) eg:I won’t do it any more, I promise you. 我答应你我再也不会这样做。(承诺) Modal verbs 2. will & would的用法 2). 用于各个人称：表示意愿、意图、决心、承诺、猜测、习惯、倾向等 eg: I told Peter that I would go along with him. 我告诉皮特我要和他一起去。(意愿) eg:That will be the postman at the door. 门口想必是邮差。(猜测) eg:I won’t give her a divorce. 我不会同意和她离婚。(决心) Modal verbs 2. will & would的用法 a 注意：will/would作为助动词用来构成将来时。 eg: We will go with you tomorrow. 我们明天和你一起去。 eg: He said he would be here at three o’clock. 他说他将在八点钟到达这里。 eg: How long will he be staying in Paris 你将在巴黎待多久？ Modal verbs 2. will & would的用法 b 注意：would do/would have done 用于虚拟条件句。would do用于对将来和现在情况的虚拟；would have done用于过去情况的虚拟。 eg: If I were you, I would take action now. 如果我是你，我现在就会采取行动。 eg: If I had seen the advertisement, I would have applied for the job. 如果 ... ...
