(完整版)语法精讲：be+动词不定式(用法9种)
Be动词的几种形式与用法
按要求完成句子
• 4.The ruler is on the desk. • 否认句: • 一般疑问句: • 答复：
• 5.My shoes are 20 yuan . • 否认句: • 一般疑问句: • 答复：
• 6.My name is Andy. • 否认句: • 一般疑问句: • 答复：
疑问式与简洁答复
一般疑问句：Be +主语+其它？ 答复：Yes, 主语+be. / No, 主语+be+n
Are you a teacher?
Yes, I am. / No, I am not.
Are you students?
Yes, we are . / No, we aren’t.
Is he a worker?
She’ not my brother.
肯定式
I am→I’m
you are →you’re
he is→he’s she is→she’s it is →it’s
we are→ we’re they are→ they’re
否定式
I’m not.
you’re not. / you aren’t.
he’s not. / he isn’t . she’s not. / she isn’t. it’s not. / it isn’t.
写出以下词适当形式:
• 1.I am (缩略形式) ____ __
• 2.is ( are (缩略形式) ____ __
• 4.are not(缩略形式) ____ _
• 5.is not (缩略形式) _____ _
• 6. it”s(完整形式) _____
be动词的用法总结
be动词的用法总结be动词是英语中最基本且常用的动词之一，在句子中起到连接主语和表语的作用。
它的形式变化多样，包括am、is、are、was、were、be、being和been等。
在不同的句子结构和时态中，be动词的用法也有所不同。
下面将对be动词的用法进行详细总结。
首先，be动词用作不及物动词，表示存在、状态、位置等。
例如：1. She is happy.（她很快乐。
）2. They are in the park.（他们在公园里。
）3. The book is on the table.（书在桌子上。
）在这些例句中，be动词连接的是主语和表语，表示主语的状态或存在。
其次，be动词还可以用作辅助动词，构成进行时态和被动语态。
以下是be动词在进行时态中的用法：1. I am studying for the exam.（我正在为考试学习。
）2. He is playing basketball.（他在打篮球。
）3. They were eating dinner when I arrived.（当我到达时，他们正在吃晚饭。
）在进行时态中，be动词与现在分词形成动词短语，表示动作正在进行。
而在被动语态中，be动词与过去分词形成动词短语，将动作的承受者放在句子的主语位置。
例如：1. The book is written by a famous author.（这本书是由一位著名作家写的。
）2. The movie was watched by millions of people.（这部电影被数百万人观看。
）除了以上两种用法外，be动词还可以表示习惯、性格、身份等一些特定的含义。
例如：1. He is always late for work.（他上班总是迟到。
）2. My sister is a doctor.（我妹妹是一名医生。
）3. She is a kind person.（她是个善良的人。
be动词知识点
be动词知识点一、be动词的形式。
1. 基本形式。
- be动词在一般现在时中有三种形式：am、is、are。
- am：第一人称单数I（我）作主语时，be动词用am。
例如：I am a student.（我是一名学生。
）- is：第三人称单数（he他、she她、it它）作主语时，be动词用is。
例如：He is my brother.（他是我的哥哥。
）She is a teacher.（她是一名教师。
）It is a cat.（它是一只猫。
）- are：第二人称单数you（你）、第一人称复数we（我们）、第二人称复数you （你们）、第三人称复数they（他们/她们/它们）作主语时，be动词用are。
例如：You are my friend.（你是我的朋友。
）We are in the same class.（我们在同一个班级。
）You are good students.（你们是好学生。
）They are my parents.（他们是我的父母。
）2. 过去形式。
- be动词的过去式有两种：was和were。
- was：第一人称单数I和第三人称单数（he、she、it）在一般过去时中，be动词用was。
例如：I was at home yesterday.（我昨天在家。
）He was ill last week.（他上周生病了。
）She was happy.（她很高兴。
）It was a sunny day.（那是一个晴天。
）- were：第二人称单数you、第一人称复数we、第二人称复数you、第三人称复数they在一般过去时中，be动词用were。
例如：You were late.（你迟到了。
）We were in Beijing last year.（我们去年在北京。
）You were so kind.（你们很善良。
）They were at the park.（他们在公园。
）二、be动词的用法。
英语语法be动词用法知识点归纳总结
英语语法be动词用法知识点归纳总结be动词是英语语法中最基础、最常用的动词之一，它在句子中充当谓语动词或连接动词。
be动词的几种形式包括am, is, are, was, were等。
本文将对be动词的用法进行归纳总结，以帮助读者更好地理解和运用。
1. be动词的基本用法be动词可以用来表达主语的身份、状态、特征等。
如：- I am a student.（我是一个学生。
）- She is tired.（她累了。
）- We are happy.（我们很开心。
）2. 表示存在和位置be动词也可以用来表示物体或人的存在和位置。
如：- The book is on the table.（书在桌子上。
）- They are in the park.（他们在公园里。
）3. 进行时态be动词与现在分词连用，可以构成进行时态，表示动作的进行。
如：- She is watching TV.（她正在看电视。
）- They were eating dinner.（他们正在吃晚饭。
）4. 被动语态be动词与过去分词连用，可以构成被动语态，表示主语是动作的承受者。
如：- The car was repaired by a mechanic.（这辆车被一个机修工修好了。
）- The movie is loved by many people.（这部电影被很多人喜欢。
）5. 时态和人称的变化be动词的时态和人称会根据具体情况发生变化。
如：- I am.（我是。
）- She is.（她是。
）- They were.（他们是。
）6. 否定形式be动词的否定形式是在be动词前加not，即is not, am not, are not, was not, were not等。
如：- He is not here.（他不在这里。
）- We were not late.（我们没有迟到。
）7. 疑问形式be动词的疑问形式是将be动词置于句首，即Is he...? Am I...? Are they...? Was she...? Were we...?等。
Be动词与动词不定式的连用
Be动词与动词不定式的连用Be动词是英语中的一个重要的动词，它在句子中常常与动词不定式连用。
动词不定式是用来表示动作、状态或目的的。
当Be动词与动词不定式连用时，会产生不同的语法和语义效果。
本文将探讨Be动词与动词不定式的连用情况及其在句子中的功能和用法。
一、Be动词与动词不定式的基本用法1. Be动词+动词不定式原形：表示被动、倾向或习惯性动作。
例如：- My car needs to be repaired. （我的车需要修理。
）- She seems to be crying. （她似乎在哭。
）- They used to be friends. （他们曾经是朋友。
）2. Be动词+not+动词不定式原形：表示否定。
例如：- He doesn't want to be disturbed. （他不想被打扰。
）3. Be动词+动词不定式进行时态：表示进行中的动作或状态。
例如：- I am studying to be a doctor. （我正在学习成为一名医生。
）- She was planning to go on a trip. （她正在计划去旅行。
）二、Be动词与动词不定式的句型变化1. Be动词与动词不定式的一般句型：主语 + Be动词 + 动词不定式例如：- I want to be a teacher. （我想成为一名老师。
）- You need to be more careful. （你需要更小心一些。
）2. Be动词与动词不定式进行时态的句型：主语 + Be动词 + 动词不定式进行时态例如：- He is considering to start his own business. （他正在考虑创业。
）- We were hoping to meet you at the party. （我们希望在派对上见到你。
）三、Be动词与动词不定式的用法特点1. Be动词与动词不定式连用时，常用于表示愿望、打算、能力、义务等情况。
be+动词不定式
be +动词不定式（即be + to do sth.）的用法如下：1.表示按计划或安排要做的事.例如：When are you to leave for home你什么时候回家She is to be married next month.她将于下个月结婚.The Queen is to visit Japan in a week’s time.女王将于一周后访问日本. 这种结构也可用于过去.was / were to do sth.表示曾经计划要做的事,但不表明计划是否被执行,或表示“命运（即命中注定要发生的事）”,而非计划；was / were to have done sth.表示未曾实现的计划.例如：I felt nervous because I was soon to leave home for the first time.我感到很紧张,因为我很快就要首次离开家了.They said goodbye,little knowing that they were never to meet again.他们告了别,不知道以后再也不会见面了.We were to have told you,but you were not in.我们本来想告诉你的,但是你不在家.2.表示“应该”,相当于should,ought to.例如：You are to report to the police.你应该报警.What is to be done应该怎么办呢3.表示“必须”,相当于must,have to.例如：The letter is to be handed to him in person.这封信必须亲手交给他.You are to do your homework before you watch TV.看电视之前你得先做完作业.4.表示“想,打算”,相当于intend,want.例如：If we are to be there before ten,we’ll have to go now.如果我们要在十点前到,我们现在就得走.5.用于第一人称疑问句,表示征求对方意见.例如：Am I to go on with the work要我继续完成这项工作吗What are we to do next我们下一步该怎么办6.用于否定句,表示“禁止”,相当于mustn’t.例如：The books in this room are not to be taken outside.这个室内的书籍不得带出室外.You are not to smoke in the reading-room.你不可以在阅览室里吸烟.7.表示“可以,可能”,相当于may,can.例如：The news is to be found in the evening paper.这条消息可以在晚报上见到. Such people are to be found everywhere.这种人到处都有.She is nowhere to be found.在哪里也找不着她.to do sth.用于if或even if / even though从句中,表示对未来的假设.例如：If I were to tell you that I killed him,would you believe me要是我告诉你是我杀了他,你会相信吗Even if the sun were to rise in the west,I would never do such a thin g.即使太阳从西边出来,我也决不做这种事.to blame(该受责备,对某坏事应负责任)与be to let(待出租)两种结构中,用不定式的主动形式表示被动含义.例如：Which driver is to blame for the accident这事故是哪个司机的责任This house is to let.这房子要出租.Exercise?have been looking for the boy all the afternoon but he is nowhere __ ___.see be seen?early as his second film,Chaplin had developed his own manner of act ing,the one that ___ world famous.become to become become?just saw John at the bookstore.----That’s strange; I didn’t think he ____ back until tomorrow.come to come coming to come?final examination ___early July.to be held to be taken place?going to hold be to take place?the sun ___ tomorrow,what would we donot to raise not rise?not rise not to rise?new hospital was to ____ in this district,but the money wasn’t c oll ected yet.been built built built?at these .’s going to rain ’s raining?is to rain can rain?do you think ____ for the failure of their marriage.blame be blame to blame to be blamed?you nor he ____ to the front.to be sent to be sent to be sent to send?____ to bed when there was a knock at the door.going to to go about to go?we ____ again next week----Yes,let’s make it next Wednesday.; to meet ; be to meet?; meet ; meeting?students,we ____.’t smoke not to smoke?’t smoking ’t smoke? Key:作业帮用户2017-10-13。
be动词的用法表
be动词的用法
be动词的用法如下：
1. be+名词，译为：“...是...”I am Chinese.我是中国⼈。
You are German.你们是德国⼈。
He is a doctor.他是⼈名医⼈。
This is an eraser.这是⼈块橡⼈。
2. be+形容词，译为：“...怎么样”The information is useful.这些信息很有⼈。
You are very clever.你很聪明。
3. be+v-ing，译为：“...... 正在......”They are playing basketball now.现在，他们正在打篮球。
4. be+状语，表示地点，位置。
5. be+不定式，表示计划、安排或约定要实行的行为。
6. be+about to+ v，译为：“就要...即将...”She is about to have a baby in 8 month.她8个月后就会生小孩了。
7. be+on the point of，译为：“马上就......”They are on the point of repairing the mobile phone.他们马上就修理这部手机。
以上就是be动词的基本用法，希望对解决您的问题有所帮助。
be加动词不定式
be＋不定式是英语中常见的一种结构，关于它的用法现在总结如下：一、构成系表结构：1、表示目的，例如：The prize was to honour him for his great discoveries.这项奖励是为了对他的重大发现而表示的敬意。
2、对主语内容进行解释说明，例如：What you should do is (to) answer my questions.你所应该做的就是回答我的问题。
二、表示将来：1、表示按计划安排要发生的事情，例如：The president is to visit China next year.总统将于明年访问中国。
If we are to be there in time, we'll have to hurry up.如果我们想及时到达那里，就必须要赶快。
注：我们可以说：It's going to rain.但不能说：It's to rain.2、表示无法预见的结果或注定要发生的事情，例如：Better days are soon to follow.好日子就要到了。
三、构成虚拟语气：1、were to do 用于虚拟条件句中，表示对将来情况的虚拟。
例如：What would you do if war were to break out?假如战争爆发你会怎么做？2、was/were+不定式的完成式（＝should+不定式的完成式）表示过去应该发生而未发生的动作，例如：We were to have been married last year。
我们本打算去年结婚的。
四、be 后的个别动词不定式的主动形式表示被动意义，例如：It's Jim who is to blame.该怪的是吉姆。
This house is to let.此房出租。
五、其他用法：1、表示命令，指令。
例如：You are not to bring any mobile communication means into the exam-room.任何移动通讯工具都不得带入考场。
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be+不定式动词
be+不定式动词”在不同情况下，可以表示很多种不同的语义。
下面便是其中九种：
一、表示坚决的命令。
例如：
1. This naughty boy is to stay here until the class is over.
2. No one is to enter this building without the permission of the security guard.
二、表示计划”或安排的事项”例如：
3. Betty is to be married soon.
4. An in sura nee age nt is to meet us this after noon.
三、表示可能性”例如：
5. Are you to pay the debt for your wife?
6. The lovely puppy is no where to be found.
四、表示意图”或打算”例如：
7. If you are to be there on time, you had better hurry.
8. If all of us are to rema in frie ndly, we must be sin cere with one ano ther.
五、表示应该”例如：
9. You have done so well. You are to be rewarded.
10. Such n asty questi ons are to be avoided.
六、表示不可避免”例如：
11. Anne was won deri ng what was to become of her boy frie nd. Tommy.
12. The murderer was senten ced to life impris onment and was n ever to see his family aga in.
七、表示假设”例如：
13. If I were to do it, I would do it well.
14. Even if you were to take a taxi now, you would not be able to arrive at your destination on time.
八、有期待将来”的含意。
例如：
15. The actual usef uln ess of the n ewly inven ted equipme nt is still to be
determ in ed.
16. Hen ry's appo in tme nt with the acco untancy firm is yet to be con firmed.
九、有必然会发生”的含意。
例如：
17. She did not think too much of her unkind acts. However, they were to be harmful to herself, too.
18. Tom was n't worried about his head injury, but it was to be troublesome for him later.。