人教版七年级英语下册 Unit 4 上课课件 第2课时（A Grammar focus-3c） 教学课件.ppt

R 七年级下册;Lead-in;In our school, we can’t listen to music in class, but we can listen to it after class.;Grammar Focus;Can we wear a hat in class?;祈使句的用法;(2)如果祈使句表示客气地请求，一般要加上please。 please可以放在句子前面也可以放在句子的后面。;2.祈使句的形式;(2)非let开头的祈使句的肯定句和否定句：;否定句;3.祈使句的用法;情态动词must与have to; (2)表示有很大把握的判断或者推测，它的意思是 “一定、准是”。; (3)以must开头的一般疑问句，它的否定回答用 needn’t (不必要),不用mustn’t(不允许) ,mustn’t 常用于否定句中，表示“不允许，禁止”。;2.情态动词have to的用法; (2)have to有人称、数和时态的变化，其第三人称 单数形式为has to。; (3)含有have to, has to的句子变疑问句或否定句需 分别借助助动词do, does 。;Do you know the meanings of these signs?;No talking!;You can’t bring your school bags in the library.;Don’t eat food.;Write the rules for the school library.;Use the words to make questions about the rules. Then write answers according to your school.;3. Listen to music? (we/can/in the hallways) Q: _________________________________________ A: _________________________________________ 4. Wear a hat?(we/can/in the classroom) Q: _________________________________________ A: _________________________________________;Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School! ;At my dream school, we don’t have to come to school every day. We can eat in class. We …;拓展;For example： Be friendly. Save water. Don’t go out at night. Don’t eat in the bed. Don’t sleep too late. Don’t waste money. Don’t talk loudly. Don’t keep animals.;Don’t talk loudly on the phone. Don’t watch TV late at night. Don’t eat in bed. Clean the bedroom on Saturdays. Don’t get up late on Sundays. Don’t talk loudly at night.;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;Exercise ;3.My sister ______ be at school by seven o’cloc