1、Unit 3 Language in use学习过程（学案）备注Step 1 Grammar 1：情态动词情态动词本身有一定的词义, 表示说话人的情绪、态度或语气, 但它们不能单独作谓语, 只能和行为动词原形一起作谓语, 表示完整的意思。本单元我们主要接触的情态动词有: 1. can(1) 表示能力, 意为“能, 会”。 Can you play tennis? (2) 表示提建议或请求。 Can you pass me that book? (3) 表示“许可,可以”, 常用于口语中。 You can use my bike. 否定式用cant.表示表示否定推测“一定不, 不可能”, 常用c
2、ant, 。 I saw him playing football just now. He cant be in the classroom. 2. must(1) 表示“必须”, 强调主观意愿或客观要求。 I must go now. (2) 表示肯定推测“一定”, 一种可能性很大的推测, 一般用于肯定句中。 Theres someone knocking at the door. It must be Jim. (3) mustnt意为“不要”, 表示禁止或不允许。 You mustnt sit on the stairs. (4) 以must开头的一般疑问句,肯定回答用must, 否定
3、回答要用neednt。 Must I return the book now? No, you neednt. / Yes, you must. 3. may和might 表示允许或请求；表示没有把握的推测；may 可放在句首，表示祝愿。 He might be at home. May God bless you! 注意： might 表示推测时，不表示时态。只是可能性比may 小。4. should表示“应该”，常用来表示劝告、建议, 认为“某人应该做某事”或“有义务责任做某事”。 We should obey traffic laws. You shouldnt have made th
4、is kind of silly mistakes.这时它可以和 ought to, be supposed to 互换使用 。should (ought to)表示推测时，是指有一定根据的推测，意为“可能、该”。Step 2 中考链接( )1. May I go out now, Dad? No. You _ let your mother know first. (2011安徽) A. can B. may C. need D. must( )2. Whos singing in the next room? It _ be her. She has gone to New York. (
5、 2011浙江湖州) A. cant B. must C. shouldnt D. can( )3. _ we clean the classroom at once? No, you _. You _ clean it after school. (2011铜仁) A. Must; neednt; may B. Must; mustnt; can C. Shall; cant; must D. Need; mustnt; may( )4. Good morning. Ive got an appointment with Ms King in her office. Morning. You
6、 _be Mr. Jones. This way, please. (2011浙江绍兴) A. will B. must C. can D. might( )5. You _ stop when the traffic light turns red.( 2012贵州铜仁)A. can B. had better C. needD. must( )6. Lets go climbing, shall we? You _ be joking! Dont you know Im 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. neednt B. cant C. mustnt D. shouldnt( )8. You mustnt go off on your own, because you _ get lost in the mountains. (2013山东潍坊) A. should B. must C. need D. might课后反思：_安全提示。回家的路上注意安全。
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