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e now. 在表示“應(yīng)該”時(shí),ought to的語(yǔ)氣比should要強(qiáng),比must稍弱。 8. dare1) dare意思是“敢”,用于肯定結(jié)構(gòu)中時(shí),后接加to的動(dòng)詞不定式。 The boy dared to climb up the tree. She should dare to question her teacher. 2)dare用于否定句或疑問句中時(shí),與大多數(shù)的情態(tài)動(dòng)詞一樣,后接不帶to的動(dòng)詞不定式。 Don39。t dare do that again! The poor girl dare not go home. 9.had better You had better see a doctor. You had better not leave now. Had I better wait for her? used to do / be used to doing / be used to do…used to do 表示過去常常發(fā)生的動(dòng)作,強(qiáng)調(diào)過去,只用于過去,注意用 to do,不用doing形式;而be used to doing 意為“習(xí)慣做…”, be 可有各種時(shí)態(tài); be used to do 意為“……被使用去做……,” 為被動(dòng)語(yǔ)態(tài)形式。My father used to eating meat.She is used to eating meat.He wasn’t used to eating in a restaurant.Knives are used to cut things. (五)含有情態(tài)動(dòng)詞的疑問句 1. 由 can、may、must構(gòu)成的疑問句 ?。?) 句式: Can/ May/ Must… + 主語(yǔ)+動(dòng)詞原形+….? 如:Can you repair the car? Could he be a good student?May I borrow your ruler?Must we clean the room now? ?。?) 對(duì) may 引出的問句,可以有下列回答方式:Yes, of course. Yes, certainly. Sure. No, you mustn’t. No, you can’t. (3) 對(duì)must引出的疑問句,回答為:Yes, …must. No,… needn’t/ don’t have to. 2. will, would, shall 的用法 ?。?) will 在一般疑問句中表示客氣的“請(qǐng)求、勸說”。 would 是will 的過去式,語(yǔ)氣更加客氣、委婉。Would you show me your picture book?Will you please give me a call? (2) 對(duì) will/ would you… 的回答方式有以下幾種:Yes, I will. (No, I won’t.)Sure . (I’m sorry , I can’t.)All right. Certainly. (No, thank you .) Yes, please.(3) shall引出的疑問句用于第一人稱, 表示征求對(duì)方意見或客氣的請(qǐng)求。其回答方式有以下幾種:Yes, please. All right. No, thank you. (六)不同情態(tài)動(dòng)詞的否定意義也不同 1. (1) can’t可譯為“不會(huì)”, 如:I can’t play basketball. 我不會(huì)打籃球。 (2)當(dāng)句子表推測(cè)時(shí),用can’t 表達(dá)不可能, He can’t be ill. He is playing chess with Tom.(3)can’t 還可用來回答“ May I …? ” 這樣的問句。May I e in ?No, you mustn’t. / can’t. (4) can’t 還可用于固定習(xí)語(yǔ)中。She can’t help crying.2. may 的否定式為 may not , 譯成“ 可能不”, He may not be at home.3. (1)mustn’t 表示不許, 不可。He mustn’t leave his room. (2) mustn’t 也可用于以 may 表示要求時(shí)的否定回答中。 May I stand here?No, you mustn’t(can’t).4. (1)needn’t 意為“ 不必” 。You needn’t meet him unless you’d like to. (2)needn’t + have+ 動(dòng)詞的過去分詞,表不需要完成但已完成的動(dòng)作,暗含時(shí)間或精力上的浪費(fèi)。You needn’t have bought it.5. shouldn’ 表不應(yīng)該You shouldn’t feel so unhappy over such