初二英语Unit10 Section A(3a—4)
I. 学习目标：
运用情态动词have to和can 谈论规章制度。 II. 学前准备 一． 你知道have to与must的区别吗？
1. haveto与 must： 两者都有“必须”的意思。must是情态动词，无人称、时态和数的变化，着重指说话人带有强烈的要求，多用来表达主动的意思，出自本人自觉。
have to有时态、人称和数的变化，意为“不得不”，指外部环境有这种要求，多用来表达客观要求。 I must do housework now.现在我必须做家务了。（自觉去做）
You have to wash your face. 你得洗脸了。（因为脸脏） 请试一试？
① It’s raining hard outside. I ________ stay at home.
A. has to B. have to C. must D. had to
② My mother says I __________finish my homework before I go out to play football.
A. has to B. have to C. must D. had to ③ -----do I have to walk home? No, you _________.
A. mustn’t B. shouldn’t C. can’t D. don’t ④ Must he finish the work before seven o’clock? No, he ___________ A. don’t B.doesn’t C. mustn’t D. needn’t 2. 情态动词can的用法： She can speak three different languages. 她能（会）说三种不同的语言。
否定形式是在can后面加上not，可以写成can’t: They can’t wait here. 提问时，can在句前。Can I use your telephone? 我能用的电话吗？ 二．根据提示，找出在校期间必须做的事情（用have to 造句） the classroom bedroom(宿舍) hallways uniform sports shoes III .导学过程
1. 3a. 看图完成句子。
2. 3b. 同桌练习： A: Do we have to ……? B: Yes, we do. \\ No, we don’t. 3. 同桌展示。
4. 3c.Write six rules with “can” and “have” to on a piece of paper.
例如： Students can eat in the classroom. Students have to go to bed on time at home.
(bedroom, hallways，home ……)
5 小组内练习。把所有纸条放入一个书包，一同学从中任意拿一张纸条，问另一个同学：Can
students eat in the classroom?或Do students have to clean the classroom everyday? 找出写那张纸条的同学。
IV 课堂跟踪练习： 一、选择填空题
1. _________ I have to arrive here on time tomorrow? A. Must B. Am C. Do D Would 2 Can you cook fish?________, it's easy.
A. No, I can't B. Yes, I can C. Sorry, I can't D. Yes ,I need.
3. run in the hallways. A. Not B. Don’t C. Does Doesn’t 4. We can’t arrive for class. A. early B. quickly C. late
5. We wear a uniform on school days. A. have to B. has to C. had to 6. They have to wear for gym class. A. dresses B. glasses C. sports shoes 7. Plants can’t live water and sunlight. A. with B. no C. without 8. My cousin usually gets up 6:30 every morning. A. on B. at C. in 9. ______ weekdays, I have to go to bed by ten o’clock. A. On B. In C. At 10. She is short curly hair. A. with B. has C. and 二、根据句意，用can，can’t，have to或has to填空
1. Mr Green smoke here, because there’s a sign on the wall. It says“No smoking.” 2. It’s very hot outside. You wear a hat.
3. We eat in the classroom, because it’s impolite to teachers. 4. I go to bed after 11:00 on school night.
5. The students read books and magazines in the library. 6. We clean our classroom after school. 7. She make her bed after getting up.
8. It’s late. Mr Beckman go to work by car.
9. Emily and Peter join a music club. They practice guitar every day. 三．句型转换。
1. She has to walk to school every day. （改为否定句和一般疑问句，并作肯定回答）
She ______ _______ to walk to school every day. _______ she ______ to walk to school every day? _______, she ________ .
2. We have to wear uniforms at school. （改为否定句和一般疑问句，并作否定回答）
We _______ _______ to wear uniforms at school. _______ you ________ to wear uniforms at school?
________ , we __________ .
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鲁教版初中英语54学制初二英语Unit10 Section A3A---4
