第14讲 Have to与must的用法【暑假辅导班】2021年新七年级英语暑假精品课程（牛津译林版）

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第14讲 Have to 与must 的用法
【暑假辅导班】2021 年新七年级英语暑假精品课程（牛津译林版）
第一部分 语法
have to
表示不得不，说明客观条件只能如此；
有时态形式的变化；否定式 don’t have to
意为＂不必＂(=
needn’t)
My brother was very ill, so I had to call the doctor in
the midnight. 我弟弟病得厉害，我只得半夜里把
医生请来。
I haven’t got any money with me, so I’ll have to
borrow some from my friend. 我身上没带钱，只好
向朋友借点了。
must 表示必须，一定要，指说话人的主观语
气
You must obey the school rules. 你必须遵守校规。
mustn’t 表示禁止，意为＂千万不要，禁
止＂，是说话人强有力的劝告
You mustn’t play with the knife or you may hurt
yourself. 你禁止玩刀否则你可能会伤到自己。
表示推测时，用于肯定句，意为＂想
必，一定＂，否定句中用 can’t/couldn’t
来代替
This must be your room. 这一定是你的房间。
He must be eighty now. 他现在想必有八十岁了。
【知识拓展】
1. must 的一般疑问句，肯定回答为 Yes, ...must.；否定回答为 No, ...needn’t./No, ...don’t have to.
—Must I clean the classroom now? 我必须现在打扫教室吗？
—Yes, you must. 是的，你必须。/No, you don’t have to. /No, you needn’t. 不，你不必。
2. must 和have to 的区别：
① 用 must 表示＂必须＂的意思时，通常着重于说话者的主观看法，认为有必要去做某
事；而 have to 着重于客观需要，含有＂不得不＂的意思。
We must study English hard. 我们必须努力学习英语。
You are ill today. You have to see a doctor. 你今天病了，不得不去看医生。
② 用 must 表示＂必须＂，只有现在时态的形式，如果要表示过去时或将来时的＂必须
1
＂，就要用 have to 的相应形式。
You must drive fast to catch the time. 你必须开车开快点来赶时间。
They will have to leave tomorrow morning. 他们必须明天早晨起程。
第二部分 Have to 与must 的用法专项训练（含解析）
一、单项选择
1．—May I take the book out of the reading room?
—No, you __________. You must read it here.
A．won’t B．needn’t C．mustn’t D．may not
2．— Must I take a raincoat with me?
— No, you ________. It won't rain today.
A．mustn't B．can't C．won't D．don't have to
3．—Must I finish all the homework today?
—No, you ________. You can leave some for tomorrow. But you should do all your homework on your own. You
________ copy others’.
A．needn’t; needn’t B．don’t have to; needn’t
C．mustn’t; mustn’t D．don’t have to; mustn’t
4．–Dad, must we cross the road at the zebra crossing?
–Yes, I’m afraid we _______. We have to follow the traffic rule.
A．can B．may C．must D．need
5．----May I play outside now, mum?
----- No, you _______. You ________ do your homework first.
A．may not; can B．can’t; may
C．may not; may D．can’t; must
6． —________ I swim here?
—I’m sorry. Children _______ swim alone here.
A．Must , can’t B．May , must C．Can, mustn’t D．Can’t can
7．---Mum, _________I go to the cinema?
---No, you_______. You______finish your homework first.
2
A．could, couldn’t, could B．may, can’t, must
C．can, can’t, may D．may, mustn’t, might
8．---he purple coat with Jacky Chen’s picture on it _________belong to Tom. He loves his films very much.
--- No, it _________ be his. He doesn’t like purple.
A．can; can’t B．may; needn’t
C．must; mustn’t D．must; can’t
9．---Mum， _______ I go to the cinema now?
---No， you can’t. You _________ finish your homework first.
A．may，must B．may ，could
C．must， need D．could，can’t
10．—May I play computer games now ?
—No, you______. You _______ finish your homework first.
A．can’t; must B．needn’t; may
C．mustn’t; can D．may not; may
11．--Can I play computer now? --No, you ______. You _____do your homework first.
A．can; can B．can’t; must C．can’t; can D．must; can
12．---- Can I watch TV now?
---- No, you ________. You _______ do your homework first.
A．can’t; can’t B．can’t; must C．mustn’t; can’t D．needn’t; must
13．Nancy ________ go far if she goes shopping. The supermarket is near her home.
A．has to B．doesn't have to C．don't have to D．hasn't to
14．—Doesn’t Frank like staying at home and looking after his little sister?
—_______, but he ________ because both of his parents work.
A．Yes; has to B．No; has to
C．Yes; doesn’t have to D．No; doesn’t have to
15．---Can you come to have dinner with me this evening?
---I’m afraid not. I look after my grandmother. She is ill.
A．can B．have to C．may D．could
16．— Must I wash my clothes today?
— I am afraid you _______. You should learn to do something by yourself.
A．need B．have to C．can’t D．can
3
第14讲 Have to与must的用法【暑假辅导班】2021年新七年级英语暑假精品课程（牛津译林版）.docx

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作者：envi 分类：初中 价格：3知币 属性：12 页 大小：39.38KB 格式：DOCX 时间：2025-02-21

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