must用法详解通用3篇

今天给大家带来must用法详解，我们一起来学习吧，以下是人见人爱的小编分享的must用法详解通用3篇，在大家参照的同时，也可以分享一下白话文给您最好的朋友。

不能用被动语态的情况 篇一

不能用被动语态的情况

1、there be 结构及所有的不及物动词或词组充当谓语时，无被动语态。

2、系动词无被动语态。

3、一些表示状态的及物动词，如cost, have, own, possess等不能用被动语态。

4、表示“希望、意图”的动词，如wish, want, hope, like, love,hate等不能变被动语态。

5、当及物动词leave, enter, reach等的宾语是表示地点和处所（包括组织、团体、军队、国家等）的名词时，不可变为被动语态。

must用法详解相关文章：

关于"must"的这些用法，你“必须”知道! 篇二

must be\ must do 用于现在时

He keeps looking at you, he must like you.

他一直在看你，他一定是喜欢你吧

She looks so beautiful, she must be a model.

她好漂亮，她一定是模特吧

He has been working out for 5 years, he must be very strong.

他已经健身5年了，他一定特别强壮吧

2 must have been\ must have done用于过去时

He didn't show up last week, he must have been on vacation.

他上周一直没出现，他一定是去度假了

She must have been very excited, when her boyfriend proposed to her last night.

昨天晚上她男朋友向她求婚，她一定十分兴奋。

You got a 20% pay rise, you must have done a great job.

你的薪水涨了20%，你一定做得特别好吧！

You must wear a suit when you have a interview.

你面试的时候一定要穿西装

He must finish all his work before the meeting.

他必须要在会议前完成所有的工作

We must double confirm it before release.

我们一定要在发表前再次确认

You must fasten your seatbelt when you're driving.

你开车的时候一定要系上安全带

You must show your passport to the immigration officer.

你必须要向移民官出示护照

You must follow the rules.

你必须要遵守这些规则

You must see a doctor, you've been sick for a week.

你务必要去看医生！你都已经病了一周了！

You must read that book! It's amazing!

你一定要去看那本书！真的是太棒了！

You must come to our party tonight! It'll be so much fun!

你一定要来参加我们今晚的派对！一定会非常有意思的！

Why must she always interrupt me?

她为什么总是要打断我？

Why must you argue with each other everyday?

你们非要每天都争吵吗？

Why must you make so much noise?

你什么偏要制造那么多噪音？

You may think the insurance is unnecessary, but it's a must.

你可能认为保险没有必要，但却是必不可少的

Eating Roast duck is a must if you come to Beijing.

如果你来北京，一定要尝尝烤鸭

It's a must to try different kinds of beer in Germany.

在德国尝试不同种类的啤酒一定是必须要做的事

must和have to的用法区别到底在哪里?你“必须”知道! 篇三

★ must表示主观上认为有义务或有责任必须做某事，强调说话人的主观看法；

have to表示由于客观因素而不得不做某事，强调客观需要。如：

Everyone must obey the traffic rules.每个人都必须遵守交通规则。Alice’s home is very far from her school, so she has to have lunch atschool.爱丽丝的家离学校很远，所以她不得不在学校吃午饭。

★must没有数和时态的变化，后接动词原形；

have to有人称、数和时态的变化，其第三人称单数形式为hasto，其一般过去式为hadto。如：

You must say no to smoking and drinking.你必须戒掉烟酒。I shall have to leave London tomorrow.我明天得离开伦敦。

★在否定句中，mustn’t表示“不许，禁止”；

don’t/doesn’t/didn’thave to表示“不必，无须”，相当于needn’t。如：

Look at the sign. You mustn’t park here.看那个标志，这里禁止停车。We don’t have to/needn’t go to school on Sundays.周日我们不必去上学。

★含有must的一般疑问句，其肯定回答用must，否定回答用needn’t或don’thave to;

回答含有have to的一般疑问句时，要用do的适当形式。如：

— Must I come back before 9 o’clock?我必须在九点以前回来吗？— Yes, you must. / No, you don’t have to/needn’t.是的，你必须。/不，你不必。— Does she have to stay at home on Sunday?她星期天必须呆在家里吗？— Yes, she does. / No, she doesn’t.是的，她必须（呆在家里）。/不，她不必（呆在家里）。

学以致用

A. 用must或have to的适当形式填空。1. We wait half an hour for a buslast Sunday.2. This is a public place. You smoke here.3. To catch the first bus, we get up early tomorrow.

B. 按要求完成下列各题，每空一词。4. — Must I go home at once? （作否定回答） — No,you 。 / No, you 。5. David has to stop practising because ofhis illness. （改为一般疑问句，并作肯定回答） — David stop practisingbecause of his illness? — Yes, 。 Key:1. had to 2. mustn’t 3. will have to 4. needn’t; don’t have to 5. Does; have to; he does