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Unit 3 Language in use 學(xué)習(xí)過程（學(xué)案） 備注 Step 1 Grammar 1：情態(tài)動(dòng)詞 情態(tài)動(dòng)詞本身有一定的詞義, 表示說話人的情緒、態(tài)度或語氣, 但它們不能單獨(dú)作謂語, 只能和行為動(dòng)詞原形一起作謂語, 表示完整的意思。 本單元我們主要接觸的情態(tài)動(dòng)詞有: 1. can (1) 表示能力, 意為“能, 會(huì)”。 Can you play tennis? (2) 表示提建議或請求。 Can you pass me that book? (3) 表示“許可,可以”, 常用于口語中。 You can use my bike. 否定式用can’t. 表示表示否定推測“一定不, 不可能”, 常用can’t, 。 I saw him playing football just now. He can’t be in the classroom. 2. must (1) 表示“必須”, 強(qiáng)調(diào)主觀意愿或客觀要求。 I must go now. (2) 表示肯定推測“一定”, 一種可能性很大的推測, 一般用于肯定句中。 —There’s someone knocking at the door. —It must be Jim. (3) mustn’t意為“不要”, 表示禁止或不允許。 You mustn’t sit on the stairs. (4) 以must開頭的一般疑問句,肯定回答用must, 否定回答要用needn’t。 —Must I return the book now? —No, you needn’t. / Yes, you must. 3. may和might 表示允許或請求；表示沒有把握的推測；may 可放在句首，表示祝愿。 He might be at home. May God bless you! 注意： might 表示推測時(shí)，不表示時(shí)態(tài)。只是可能性比may 小。 4. should 表示“應(yīng)該”，常用來表示勸告、建議, 認(rèn)為“某人應(yīng)該做某事”或“有義務(wù)責(zé)任做某事”。 We should obey traffic laws. You shouldn’t have made this kind of silly mistakes. 這時(shí)它可以和 ought to, be supposed to 互換使用 。should (ought to)表示推測時(shí)，是指有一定根據(jù)的推測，意為“可能、該”。 Step 2 中考鏈接 ( )1. — May I go out now, Dad? — No. You _____ let your mother know first. (xx安徽) A. can B. may C. need D. must ( )2. — Who’s singing in the next room? — It _____ be her. She has gone to New York. ( xx浙江湖州) A. can’t B. must C. shouldn’t D. can ( )3.— _______ we clean the classroom at once? — No, you _______. You _______ clean it after school. (xx?銅仁) A. Must; needn’t; may B. Must; mustn’t; can C. Shall; can’t; must D. Need; mustn’t; may ( )4. — Good morning. Ive got an appointment with Ms King in her office. — Morning. You _______be Mr. Jones. This way, please. (xx浙江紹興) A. will B. must C. can D. might ( )5. You ________ stop when the traffic light turns red.( xx貴州銅仁) A. can B. had better C. need D. must ( )6. — Let’s go climbing, shall we? —You _______ be joking! Don’t you know I’m afraid of high places? A. may B. can C. must D. should ( ) 7. The man is feeling much better now, so you ______ call a doctor. A. needn’t B. can’t C. mustn’t D. shouldn’t ( )8. You mustn’t go off on your own, because you _______ get lost in the mountains. (xx山東濰坊) A. should B. must C. need D. might 課后反思：_________________________________________________________ 安全提示。回家的路上注意安全。