人教版七年级下册英语Unit4第2课时(AGrammarfocus-3c)优质课件.pptVIP

人教版七年级下册英语Unit4第2课时(AGrammarfocus-3c)优质课件.ppt

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* * * * * * * * * Dear parents, I know you love me very much. Now I’ve grown up(长大). We should respect (尊重)each other. I have some suggestions(建议)for you. _______________________________________ _______________________________________ _______________________________________ Will you listen to me? Language points 1. We don’t have to come to school every day. 我们不必每天来学校。 have to为固定短语,意为“不得不,必须”, 其后接动词原形,有时态和人称的变化。 have to的否定形式是:主语+don’t + have to+动词原形+其他(一般现在时,当主语是第三人称单数时,用doesn’t have to,一般过去式用didn’t have to) Summary 语法 1. 祈使句的三种类型用法 Don’t run in the hallway. 2. 情态动词can, must, have to的用法 Can we wear a hat in class? We must be on time for class. We have to be quiet in the library. 把下列祈使句改成否定形式。 1. Be on time. 2. Eat in the hall. _____________________ _____________________ 3. Talk loudly. _____________________ Don’t be on time. Don’t eat in the hall. Don’t talk loudly. Exercise 单项选择。 1. ______ with fire. It’s very dangerous. A. Playing   B. Play C. Don’t play D. Doesn’t play 2.The children _____ play football on the road. A. can   B. must   C. mustn’t   D. may 3.My sister ______ be at school by seven o’clock.  A. has to    B. have to     C. had to     D. must to 4. It’s raining all day, so my brother ______ stay at home.  A. must  B. have to  C. must to  D. has to * * * * * * * * * * * * * * * * * * * * * * * * * * R·七年级下册 Unit 4 Don’t eat in class. Grammar focus-3c Lead-in Tell others about your school rules. (You can finish it by yourself/ with your partner. ) listen to music In our school, we can’t listen to music in class, but we can listen to it after class. In our school, we can’t listen to music in class, but we can listen to it after class. What are the rules in your school? Role-play Can you eat in the classroom ? N

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