疑问句：Do 、Does或Did+主语+have to +动词原形+其他
Eg:---Do you have to stay at home on weekends? 周末你必须呆在家里吗
---Yes, I do. / No, I don't. 是的我必须。不我不必。
Did he have to go to bed by 11:00 last night? 昨晚他不得不11点前上床睡觉吗?
【典型例题】
Lucy has to wear sports shoes for gym class.(该为否定句)
Lucy ________ ________ to wear sports shoes for gym class.
2.情态动词must的用法：
must表示说话人的主观看法，及主观上的必要性，还用于命令或愿望。只用于现在时，无人称和单数的变化。在表示过去、将来和完成时，用have to的相应形式来代替must.
● 在表示有做某一个动作的必要和义务，它的意思是“必须，应该”。
Eg:You must finish your homework fist.你必须先完成作业。
● 表示有很大把握的判断或者推测，意思是“一定，准是”。
Eg:The tall man must be your father.那个高个子男人一定是你的爸爸。
● 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”。
Eg:---Must I go there on foot?我必须得走过去吗?
---No,you needn’t.不，你不需要。
You mustn’t park your car here.你的车不允许停在这儿。
【典型例题】
It’s very warm outside.You ________wear the coat.
A.have to B.hadn’t C.don’t have to D.mustn’t
情态动词can, may, must的用法：
【典型例题】
The children ________play football on the road.
A.can B.must C.mustn’t D.may
---Must I clean the blackboard?---No,you ________.
A.needn’t B.mustn’t C.can’t D.may not
Your mother ________there,she has gone to America.
A.must be B.could be C.may be D.can’t be
4. 祈使句(Imperative Sentence)
Eg:You go and tell him, Chris.克立斯你去告诉他。
【典型例题】
1>________late for class!
A.Don’t B.Not be C.Don’t be
2>________worry about me Mom.I’ve grown up.
A.Don’t B.Don’t be C.Not D.Not be
3>Run in the hallways.(改为否定句)
________ ________in the hallways.
4>英译汉：别在马路上跑。
_______________________________________________________
II. Complete the sentences as required.
11.We can’t listen to music in the classroom.(改为祈使句)
to music in the classroom.
12.Eat in class,please.(改为否定句)
_________ in class,please.
13.They have to clean the classroom every day.(对划线部分提问)
they have to _________every day.
14.Listen to music in the hallways(改否定句)
listen to music in the hallways.
15.She has to wash clothes every week. (改为一般疑问句)
Does she wash her clothes every day.
III. Structure and Grammar .
Choose the best answers.(10分)
( )16. Your homework after school.
A. Doing B. To do C. Do
( )17. Don’t arrive late school.
A.loud B.loudly C .aloud
( )18. Can we in the hallways?
A . to eat B. eat C. eating
( )19.They have rules in their class.
A. too much B . much too C. too many
( )20. sleeping in class.
A. Can’t B. Don’t C. No
( )21. Please play volleyball here.
A. please B. do C. don’t
( )22. can you see in the picture?
A.What other B.What else C.Other what
( )23. Our teacher told us in class.
A. not to eat B. don’t eat C. not eat
( )24.---- _________ Tom_______go to bed by ten?
A.Do;has to B .Does; have to C. Does;has to
( )25. My mother was ill,so I________look after her at home.
A. must B. had to C. could
Peter is a doctor. He always (1) others. Today is Saturday, he needn’t go to (2) . At about (3) o’clock, he goes to a restaurant to have (4) . An old man (5) near him. Suddenly the old man falls down from the chair. He cries, “Is (6) anyone here?” Peter comes to the (7) man very quickly. He gives some first aid(急救), and calls (8) , then asks other people not to move him. After a while(一会儿), the ambulance(救护车) comes and (9) the old man to the hospital. Everyone smiles to Peter and thanks (10) . Peter feels very happy.
1. 2. 3. 4. 5.
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