be+不定式的用法小结

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不定式的特殊用法小结

不定式的特殊用法小结

不定时的用法to do 的其它用法:1. 时态和语态形式to do/to be done/to be doing/to have done/to have been done/to have been doing(1) 一般式表动作通常与谓语动词所表动作同时或在其后发生; 进行式表动作与谓语动作同时进行;完成式表动作发生在谓语动作之前; pretend / believe /say/seem/happen/prove/plan/hope/expect/should like/would like + to have done 表未曾实现的行为; 完成进行式表动作在谓语动作之前已开始并一直进行着,到说话时为止,该动作可能停止,也可能还在继续。

People began to wonder how long the disaster would last.The children pretended to be reading aloud when the teacher came in.I didn’t expect you to be waiting for me so long.The crowd cheered wildly at the sight of Liu Xiang, who was reported to have broken. the world record in the 110- metre hurdle race.He’s said to have written a new novel.I would like to have had your help.I hoped to have seen her .He planned to have gone abroad.He was said to have been living in New York for twenty years.(1)主动式表逻辑主语为不定式动作的执行者;被动式表逻辑主语是不定式动作的承受者。

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。

初中英语动词不定式的用法小结(外研版英语九年级)

初中英语动词不定式的用法小结(外研版英语九年级)

初中英语动词不定式的用法小结(外研版英语九年级)当我们要表达“想要做某事、需要做某事或决定做某事”时,就会出现两个动词连用的情况,这时应如何表达呢?我们自然会想到want to do sth.,need to do sth.和decide to do sth.等表达方式。

主要行为动词后面的动词都采用了”to+动词原形”的结构,我们把这种结构称为不定式(有时可以不带to)。

动词不定式没有人称和数的变化,在句子中不能做谓语,那么英语中的动词不定式都可以表示什么意思呢?有什么样的语法功能呢?下面就做一下介绍。

动词不定式在句子中作主语。

1.不定式作主语时,谓语动词一般用单数,常采用it作形式主语,不定式后置的方式,特别是不定式短语较长时,这样可以避免句子的“头重脚轻”,即It+形容词/名词+to do sth.。

动词不定式作主语,谓语动词用第三人称单数形式。

例如:It is not easy to learn English well. 学好英语真不容易。

It is difficult to speak a foreign language well. = To speak a foreign language well is difficult.说好一门外语是困难的。

It is necessary to remember enough words. = To remember enough words is necessary. 记住足量的单词是有必要的。

2. 带疑问词的不定式短语作主语常置于句首,复合不定式结构作主语常置于句末。

如:How to make requests politely is important. 如何有礼貌地提出请求很重要。

Where to go is not decided yet. 要去哪里还没做出决定。

It's good for you to walk after supper. 晚饭后散步对你是有益的。

be动词的用法表

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。

初中英语中Be 动词的用法归纳

初中英语中Be 动词的用法归纳

初中英语中Be 动词的用法归纳be是一个多功能动词,在初级英语里可见四种用法:功能一,系动词bebe为连系动词,中心词义是"是",句型为"主+系+表"结构。

be的形式常用am, is, are(现在式);was, were(过去式);will/can/may/must be(助动词/情态动词+原形);have/has/had been(助动词+过去分词)等。

如:To help animals is helping people.(一般现在时)The twins were very busy yesterday.(一般过去时)It will be sunny tomorrow.(一般将来时)She has been ill for over a week.(现在完成时)功能二,助动词be助动词be,无词义,辅助主要动词一起在句中作谓语动词。

用法如下:1. be+doing:构成进行时态,有现在和过去两种进行时态。

如:The girls is reading and copying the new words now.Young Tom was always asking questions and trying out new ideas.2. be+done:构成被动语态(主语是动作的承受者,done必须是及物动词)。

如:Tea is grown in my hometown.(一般现在时的被动语态)This building was built three years ago.(一般过去时的被动语态)Our classroom has been cleaned and tidied already.(现在完成时的被动语态)How could this kind of cakes be made in your home?(含情态动词的被动语态)That is a day never to be forgotten.(动词不定式的被动语态)3. be+going to do,表示"打算或将要做某事",be有现在和过去两种形式。

be +动词不定式(即be + to do sth.)的用法

be +动词不定式(即be + to do sth.)的用法

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。

高三英语比较级句型表示最高级的含义、从高考试题看Wh_ever等的用法等六篇语法用法小段文

高三英语比较级句型表示最高级的含义、从高考试题看Wh_ever等的用法等六篇语法用法小段文

比较级句型表示最高级的含义、从高考试题看Wh_ever等的用法、be+不定式的用法小结、常考英语语法十五要点、语法点滴“疑问词+不定式”用法小结、和名词性从句引导词细辨英语中用比较级句型可以表示最高级的含义,较为常见的有下列几种形式:1、直接使用比较级①How beautiful she sings! I've never heard a better voice.= She has the best voice I've ever heard.她唱得多好啊!这是我听到的最美的歌喉。

②I have never read a more interesting novel.= It is the most interesting novel I've ever read.这是我读过的最有趣的小说。

2、比较级+ than + the other + 复数名词/ + any other + 单数名词/ + any of the other + 复数名词①She goes to school earlier than the other girls.她比其他女孩早上学。

②He works harder than any other student.她学习最用功。

③China is larger than any of the other countries in Asia.中国是亚洲最大的国家3、比较级+ than + anything/ anyone else①George did more work than anyone else.乔治干活最多。

②Tom cared more for money than for anything else汤姆最喜欢钱。

4、在比较句型中使用"no", "nobody", "nothing" 等词。

不定式用法小结

不定式用法小结
锁车是有必要的。 (2) It's very kind of him to help us. 他帮助我们,他真好。 It was silly of us to believe him. 我们真愚蠢,竟然相信了他。 It seemed selfish of him not to give them anything. 他不给他们任何东西,这
一、语法功能
(一)、作主语 动词不定式作主语时,句子的谓语动词常用单数,其位置有以下两种: (1)把不定式置于句首。如: To get there by bike will take us half an hour. (2)用it作形式主语,把真正的主语不定式置于句后,常用于下列句式中。如: ①It+be+名词+to do It's our duty to take good care of the old. ②It takes sb+some time+to do How long did it take you to finish the work? ③It+be+形容词+for sb+to do It is difficult for us to finish writing the composition in a quarter of an hour. ④It+be+形容词+of sb+to do It is stupid of you to write down everything (that) the teacher says. ⑤It seems(appears)+形容词+to do It seemed impossible to save money.
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be+不定式的用法小结
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。

2、表示必须,必要。

例如:
This letter is to be handed to him in person.
这封信必须要面交他本人。

3、表示能够或可能发生的事情,例如:
How are we to convince him?
我们怎么能够说服他呢?
4、表示应该,例如:
Such questions are to be avoided.
这样的问题应该避免。

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