Must 的用法
must用法详解

must用法详解今天给大家带来must用法详解,我们一起来学习吧,下面就和大家分享,来欣赏一下吧。
must用法详解1. 表示“必须”、“一定要”(1) 可用于肯定句、否定句或疑问句;用于否定句时,mustn’t 的意思是“一定不要”、“不能”,而不是“不必”。
如:You must finish it today. 你一定要在今天完成它。
You must see the doctor. 你一定要看医生。
Must you go so soon? 你一定得这么早就走吗?We mustn’t think only of ourselves. 我们可不能只考虑自己。
(2) 主要表示现在或将来,但有时(如在间接引语中)也可表过去(=had to)。
如:She asked if she must (had to) leave. 她问她是否一定要离开。
(3) 对于must 开头一般疑问句,若要作否定回答,可用needn’t、dont have to,不用mustn’t。
如:"Must I come over tonight?" "No, you needn’t." “我今晚必须过来吗?”“不必。
”(4) 其后可接被动结构或进行形式。
如:Something must be done to stop it. 必须采取措施来阻止它。
I think I must be going. 我想我得走了。
2. 表示推测意为“准是”、“一定是”,注意以下几点。
如:(1) 通常只用于肯定句,在否定句或疑问句用can 代之。
如:It must be true. 那一定是真的。
比较。
如:Can it be true? 那可能是真的吗? / It can’t be true. 那不可能是真的。
(2) 后接动词原形,表示对现在情况的推测。
如:He must be wrong. 他一定错了。
The man must have a lot of money. 这个人一定有不少钱。
must的用法

must的用法must有必须;应当;很可能的意思,那么你知道must的用法吗?下面跟着店铺一起来学习一下,希望对大家的学习有所帮助!must的用法:表示义务、意图或建议:必须,应该I must leave at six today. 我今天必须六点钟离开。
I must write a letter to the head teacher. 我非得给校长写封信不可。
(强烈意图)You must go and see that film——you'd really enjoy it. 你得去看看那部电影,你会真的喜欢它的。
(提建议)表示推测:必定,一定The light is still on, so he must be at home. 灯还是亮的,他一定在家。
The light was out. They must have gone to bed. 灯都熄了,他们必定睡了。
注意:1. must表示推测时的否定式是can't或couldn't(不可能) ,因为must只用于肯定句,语气很强。
2. 若对过去情况的推测用must have加过去分词。
表示主张:硬要,一定要If you must go, at least wait till the rain stops. 如果你坚持要走,至少也要等雨停了再走。
The machine must break down at this busy hour. 正忙的时候机器偏偏坏了。
表示不可避免性:必然要,必定会All men must die. 人总有一死。
“must+be”“must+be+ v -ing”“must+表示状态的动词”可表示现在或一般的情况; “must+have”表示过去的情况; “must+表示动作的动词”表示将来的情况。
must可表示讽刺或抱怨,此时须以you为主语。
must表示客观上不愉快的情况,意为“偏偏”。
must的用法总结归纳

must的用法总结归纳must是一个常见的情态动词,用法非常灵活。
它可以用来表达推测、推理、必然性、义务等多种含义。
下面是关于must用法的详细总结:1.表达主观推测或确信:- We must be quiet in the library.(在图书馆里我们必须保持安静。
)- He must be very tired after working all day.(他整天工作,一定很累。
)- They must have arrived at the airport by now.(他们现在一定已经到达机场了。
)2.表达客观推理或确信:- The road is wet, it must have rained.(路面潮湿,一定下过雨。
)- The shop is closed, it must be Sunday.(商店关门了,一定是星期天。
)- The house is empty, they must have moved out.(房子空着,他们一定搬走了。
)3.表达必然性(根据规则、自然法则等):- Water must boil at 100 degrees Celsius.(水一定在100摄氏度沸腾。
)- Plants must have sunlight to grow.(植物生长必须有阳光。
)- You must wear a seatbelt when driving.(开车时必须系安全带。
)4.表达义务、强制或责任:- We must follow the rules.(我们必须遵守规定。
)5.表示建议或命令:- You must read this book, it's really interesting.(你必须读这本书,它非常有趣。
)- You must stop smoking for your health.(为了健康,你必须戒烟。
)6.表达事实或不可怀疑:- It must be cold outside, everyone is wearing coats.(外面一定很冷,大家都穿着外套。
must情态动词用法

must情态动词用法"Must" 是一种情态动词,用于表示推测、责任、义务、建议等意义。
以下是一些常见的 must 的用法:1. 表示推测:- They must be at home.(他们一定在家。
)- The room looks tidy, so she must have cleaned it.(房间看起来整洁,她一定打扫了。
)2. 表示强烈的义务或责任:- You must finish your homework before you go out to play.(你必须在出去玩之前完成作业。
)- We must help those in need.(我们必须帮助那些需要帮助的人。
)3. 表示必然的推论:- If it's raining, then he must have taken an umbrella.(如果下雨了,他肯定带了把伞。
)4. 表示命令或律令:- You must stop here.(你必须在这里停下。
)- Citizens must abide by the state laws.(公民必须遵守国家法律。
)5. 表示强烈的建议:- You must try this new restaurant.(你一定要试试这家新餐厅。
)需要注意的是,must 在疑问句和否定句中使用上有一些限制,通常用 "have to" 来代替:- Do you have to go to the meeting?(你必须去开会吗?)- She doesn't have to work on Sundays.(她不必在星期天工作。
)。
must用法归纳与总结

must用法归纳与总结must是英语中的一个常用词,它可以用于不同的语境中表达不同的含义。
下面将对must的用法进行归纳和总结,包括用于陈述句、疑问句、否定句和条件句的情况。
1. 用于陈述句表示强烈的建议或要求在陈述句中,must可以表示强烈的建议或要求。
例如:You must finish your homework.(你必须完成你的作业。
)We must go to the airport immediately.(我们必须立即去机场。
)在这种语境中,must强调了建议或要求的强烈程度,表达了说话者对听者的期望或要求。
2. 用于疑问句表示询问或反问在疑问句中,must可以表示询问或反问。
例如:Must I finish my homework?(我必须完成我的作业吗?)Must you go to the airport immediately?(你必须立即去机场吗?)在这种语境中,must表示对某个问题或情况的询问或反问,表达了听者对说话者建议或要求的疑问或不理解。
3. 用于否定句表示禁止、阻止、不许、必须在否定句中,must可以表示禁止、阻止、不许、必须等含义。
例如:You must not smoke in the elevator.(禁止在电梯内吸烟。
)You must not park here.(禁止在此停车。
)在这种语境中,must表示禁止、阻止、不许、必须等含义,表达了说话者对某些行为或操作的禁止或限制。
4. 用于条件句表示必须、必要在条件句中,must可以表示必须、必要的含义。
例如:If you want to go to the party, you must RSVP by Friday.(如果你想参加聚会,必须在星期五之前回复。
)If you want to graduate, you must pass all your exams.(如果你想毕业,必须通过所有的考试。
must 的用法

must 的用法
must是一个情态动词,用于表示强烈的命令、义务或推断。
它可以用于不同的语境中,包括肯定陈述、否定陈述、疑问句和条件句中。
下面是一些具体的用法:
1. 表示强制性的命令或建议:You must wear a helmet when riding a motorcycle.(骑摩托车时必须戴头盔。
)
2. 表示责任或义务:I must finish this report tonight.(我必须今晚完成这份报告。
)
3. 表示非常有可能的推断:He must be exhausted after running a marathon.(他跑完马拉松一定累坏了。
)
4. 在条件句中表示必须满足的条件:You must pass the exam if you want to graduate.(如果你想毕业,你必须通过考试。
)
5. 在虚拟语气中表示强烈的愿望或建议:I wish I could go on vacation.(我真希望能去度假。
)
6. 表示对某种事实的确认:That must be the bus we need to take.(那一定是我们要坐的那辆公交车。
)
总之,must是一个常用的情态动词,用于表示强烈的命令、义务或推断。
在语境中正确使用must可以让我们的表达更加清晰和准确。
- 1 -。
must的用法总结

must的用法总结一、Must的基本用法Must是一个英语情态动词,用于表示强烈建议、必须或者应该做某事。
在句子中通常用作情态动词,可以和动词原形一起构成肯定句、否定句、疑问句等各种句式。
1. 肯定句:Must + 动词原形例如:- You must arrive on time for the meeting tomorrow.明天开会你必须准时到达。
- We must study hard for the upcoming exam.我们必须为即将来临的考试努力学习。
2. 否定句:Must + not + 动词原形例如:- You must not miss the deadline for submitting the report.你不能错过提交报告的截止日期。
- They must not forget to lock the door when they leave.离开时他们不要忘记锁门。
3. 疑问句:Must + 主语 + 动词原形?例如:- Must we finish this task by tomorrow?我们必须明天完成这项任务吗?- Must I bring my own laptop to the workshop?我必须带自己的笔记本电脑参加研讨会吗?二、Must的用法总结1. 表示根据道德规范或者法律规定必须做或者不做某事。
例如:- You must obey the rules of the library.你必须遵守图书馆的规定。
- Citizens must pay taxes on time.公民必须按时缴纳税款。
2. 表示根据逻辑、常识或者经验判断,某种行为是非常确凿的真理或者必然的结果。
例如:- The sun must rise in the east and set in the west.太阳肯定从东方升起,西方落下。
- You must be tired after working for such a long time.在工作了这么长时间之后,你一定累了。
must用法情态动词

must用法情态动词“must”作为情态动词,通常用来表示必然性、必要性和义务,其用法有以下几种情况:1.表示“必须”、“一定”的意思,用于肯定句中,用于疑问句中表示责备或不耐烦。
例如:•You must be careful when you cross the street. (你过马路时一定要小心。
)•Must I finish my homework now? (我必须现在完成作业吗?)2.表示推测,意为“一定”、“准是”、“必然会”,只用于肯定句中,用于否定句中表示推测。
例如:•He must be very tired after such a long walk. (走了这么长时间,他一定很累了。
)•The train can't be late. It's always on time. (火车不可能晚点,它总是准点的。
)3.表示过去的事情或过去的推测,意为“一定”、“准是”、“必然会”,只用于肯定句中,用于否定句中表示过去情况的推测。
例如:•He must have studied hard before he passed the exam.(他考试一定考得很好。
)•They couldn't have missed the train. It arrived on time. (他们不可能错过火车,因为它准时到达了。
)4.表示强烈的建议或命令,意为“必须”、“一定要”,用于肯定句中,用于否定句中表示强烈的不满或抱怨。
例如:•You must come to see me before you leave. (你一定要在离开前来看我。
)•You mustn't forget to turn off the lights before you leave. (你千万不要忘记关灯。
)5.表示推测或可能性的程度,意为“大概”、“或许”、“极有可能”,用于肯定句中,用于否定句中表示不太可能的推测。
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Must 的用法:
1. must (“必须”, 主观上的) / have to (“不得不”, 客观上的)
2. must / need 提问, 其肯定答语用must , 否定答语用needn’t
3. mustn’t 表示禁止
4. 用于猜测句型, 表语气很强的肯定句中. “一定….”
5. 表示人的一种固执“偏要”“非…不可” (指做令人不愉快的事)
6. 做名词: “必须有的东西/做的事”
Exercises:
1. I can’t find my key. It ____ in my offi ce.
A. can be forgotten
B. can be left
C. must have been forgotten
D. must have been left
2.---What’s that terrible smell?
---Oh, I forgot about the chicken! Go and look, it ______!
A. may be burnt
B. ought to be boiling
C. can be cooking
D. must be burning
3. “Oh, peter, you are running a high fever. You ____ go to see a doctor or you’ll miss the entrance exam.” Said the teacher.
A. must
B. should
C. might C. could
4.---_____ you make so much noise?
---Sorry. I’ll take care n ot to.
A. Can
B. Must
C. May
D. Would
5.I really _____ go ; I shall miss my bus if I don’t hurry.
A. can
B. might
C. will
D. must
6. You _____ use the office phone for private calls during working time. It’s not permitted.
A. need n’t
B. mustn’t
C. may not
D. won’t
7.---Wake up, Peter. Time to rise.
---I ____ asleep while I was reading
A. must fall
B. could fall
C. must have fallen
D. should have fallen
8.---_____ I book a table for dinner a few days ahead of time?
---Yes, you ____. The restaurant is always full, especially during the holidays.
A. Must, will
B. Must, can
C. Shall, shall
D. Shall, must
9.Little Tom ____ have finished his homework; otherwise, he wouldn’t be listening to music.
A. can
B. shall
C. must
D. would
10.Apologize? ______ I ? It was all her own fault.
A. May
B. Shall
C. Should
D. Must
11.So long as there are more people than needed, there _____ be tests to help make a fairer decision.
A. can
B. may
C. shall
D. must
12.____ you take a taxi? There is still plenty of time.
A. Can
B. Will
C. Must
D. Should
13.---Tom is never late for work. Why is he absent today?
---Something ____ to him.
A. must happen
B. should have happened
C. could have happened
D. must have happened
14.The examination _____ very difficult since only a few of the students passed.
A. could have been
B. must have been
C. might have been
D. would have been
15.---I phoned Tom yesterday evening , but nobody answered the phone.
---Oh, he _____ .
A. must be sleeping
B. must slept
C. must have been sleeping
D. could be sleeping
16.Don’t interrupt me, John. ____ you force me to tell you the truth at the moment?
A. Might
B. Must
C. Should
D. Will
17.All my family are looking forward to meeting you. You ____ come over and have dinner with us this weekend.
A. will
B. must
C. may
D. shall
18.---Can I surf the Internet tonight?
---Sure. However, in no case _____ you do it alone.
A. could
B. might
C. must
D. need
Answers: 1-5 DDABD 6-10 BCDCD 11-15 DCDBC 16-20 BBC。