以下是小编整理的英语语法——let的用法，本文共7篇，欢迎阅读分享。本文原稿由网友“新天翔便利蜂”提供。
篇1：英语语法——let的用法
1）当let后只有一个单音节动词，变被动语态时，可用不带to 的不定式。
they let the strange go.--->the strange was let go.
2） 若let 后宾补较长时，let 通常不用被动语态，而用allow或permit 代替。
the nurse let me go to see my classmate in the hospital.
---->i was allowed / permitted to see my classmate in the hospital.
篇2：let 的用法
let 的用法
1）当let后只有一个单音节动词，变被动语态时，可用不带to 的不定式。They let the strange go.--->The strange was let go.
2） 若let 后宾补较长时，let 通常不用被动语态，而用allow或permit 代替。
The nurse let me go to see my classmate in the hospital.
---->I was allowed / permitted to see my classmate in the hospital.
篇3：英语语法it用法
五、It 用作形式宾语用来替代作宾语的从句、动词不定式、动名词，而把真正作宾语的从句、动词不定式、动名词置于句尾。
It 作形式宾语的常见句型：
1. verb+ it+ adj./noun (for/of) to do/clause (verb=think, believe, suppose, consider, feel, make, keep…)例I think it hard for you to do the task on your own./I think it hard that you'll do the task on your own.
2. verb+it+adj./noun (one's) doing (adj.=useless/worth/worthwhile)(noun=no use/no good/worth one's while/a waste of time/money/energy/words) (verb=think, believe, suppose, consider, feel, make, keep…)例I'll make it worth your while telling me about his secret.
3. verb+it+ important/unimportant/necessary/unnecessary/natural/essential that … (should)…verb+it+of much/great/no/little importance that…(should)…(verb=think, believe, suppose, consider, feel, make, keep…)例I think it important that you (should) attendthe conference.
4. verb + it+ as+ noun/adj.+ clause (verb=accept, regard, take, see, view)例The lecturer takes it as encouraging when so many students attend his lecture.
5. v. +it + prep. + that…owe it to sb. that…把…归功于…leave it to sb that…把…留给某人去做take it for granted that …想当然keep it in mind that…例Don't bother to arrange anything. Just leave it to me to sort out.
6. It用在不能直接跟宾语从句的动词后面，尤其是表示好恶的动词后，enjoy, like, love, dislike, resent, hate, don't mind, be fond of, feel like, see to 宾语从句紧跟it之后例I hate it you can swim so well and I can't.
7. It用在不能直接跟宾语从句的介词后面，宾语从句紧跟it之后(except that例外)例I'm for it that you will follow their advice.
篇4：let的用法总结简单
接动词不定式作宾语补足语时,如用于被动结构，to须保留。let还可接不带to的动词不定式作宾语,这时主要用于某些固定搭配中。
let用作不及物动词时主要表示“出租”,主语通常为物(如房子等),其主动形式含有被动意义。
篇5：let的用法总结
语法 | let用法
今天，给大家讲一讲let的用法!
基本含义
let的基本意思，是允许对方照其意思而行。引申可表示“出租”“放掉,松掉”等。用于数学中通常表示“假设”。
具体用法
1
表示让，允许的用法。
例句：No visitors are let into the committee meetings.委员会会议不允许任何访问者闯入。
Let me have a look at this watch.把这只表让我看看。
Let's consider briefly his suggestion.让我们考虑一下他的建议。
2
let用作名词有阻碍，擦网球，球触网重发，出租的含义。
例句：I can't get a let for my house.我的房子租不出去。
Please allow the bearer of this passport to pass freely without let or hindrance.请予护照持有人顺利通行。
If you hit a let,you can serve again.如果发了擦网球，可以再发一次。
“let us”和“let's”居然不是一个意思!这么多年英语都白学了!
Let us & let's
let's是用于提出建议，表达说话人和说话的对象一起做某事。
Let's?begin?our?discussion,shall?we???我们开始讨论,好吗?
Let's?start?early,shall?we??我们早点动身,好吗?
let us 中的 let 相当于 allow，请求说话对象准许你和其他人去做某件事，这个 us 是不包括说话对象的。通俗点形容就是你请求你爸爸同意你跟对象一起出去玩。
Listen, if you talk to him or anything make sure you let us know, will you 听着，如果你和他说话或什么的，一定要让我们知道，好吗?
If you have had a problem with the vatman, let us know. 如果您对增值税有什么异议的话，请告诉我们。
当然啦，也有特殊情况，当你要和对象做些什么事情的时候，也可以通用。
Let's get married.我们结婚吧!
表达请求的句子
1
Would?you?like?/?love?(to?do)?sth.??
这是一个很委婉的表示建议的句型,并带有与对方商量的意味,意为你想要(做)......吗?
—Would?you?like?to?go?to?the?cinema?with?me??—Yes.?I'd?like?/?love?to.
2
Shall?I?/?we?do?sth.?
此句型是用来提建议或征求对方意见的,意为我(们)做......好吗?语气委婉,商量的语气较浓。
Shall we go for a walk?我们去散步好吗?
3
主语+had ?better?(not)?do?sth.
该句型用于表示对下级、晚辈的劝告,往往带有命令、强制的语气,意为某人最好(不要)做某事。
You had better repair your shoes one time.
你最好把你的鞋修理一下。
You had better affirm repeatedly when beginning to optimize.
你最好在开始优化的时候再三确认。
使役动词let的用法
let的用法
1)let +宾语+do(省to不定式)：表示主语“要”“使”“让”宾语干某事，宾语和宾补之间是一种主动关系。
Let them stay in the classroom and do their exercises themselves.让他们自己待在教室里做练习吧。
Let AB be equal to CD.假设AB等于CD.
2)let+宾语+副词/介词短语作宾补
Let me in and let them out.让我进来，让他们出去。
Who let you into the building?谁让你进到大楼里来的?
老外说 “let's roll” 是什么意思?让我们滚吧?
今天助理毛毛和外教Peter去拍摄
到场地，peter喊了一句 Let's roll!
roll不是滚吗?让我们滚?毛毛这一头问号啊
roll这个词，你要只知道“翻滚”，可就亏大了!
今天的话题
roll那些不能不知道的用法
let's roll是什么意思?
口语中
Let's roll 可以理解成
咱们干吧!冲吧!上吧!
它比 let's go 或者 let's start更有决心
在面对困难或者背水一战时
let's roll 这句话很能振奋人心
Time to fight，let's roll!
战斗时刻，冲啊上啊!
Roll 还可以理解成【走，离开】
相当于leave
Time to roll. 该走了.
Ready to roll? 准备走了?
A：6 o'clock, time to roll !
6点啦，该走了!
B：Yeah. Let's roll.
是啊，一起走吧。
roll on能表达期盼
期待什么事，希望时间走快点
可以直接说
roll on+时间
(英式用法)
↓比如期盼假期↓
I can't wait to go on vacation - roll on October!
我等不及要度假—10月份快点到啊!
↓期盼周末↓
I hate Monday，roll on Friday!
我讨厌周一，周五快来吧!
roll up 暗示迟到
对于经常踩点到、迟到一两分钟的人
说late他们肯定不服气的
歪果仁会用 roll up 暗搓搓表达
姗姗来迟
Max rolled up drunk just after 9 o'clock.
9点刚过，Max醉醺醺的姗姗来迟。
call roll 表达 点名
这里，roll是名词，意思是“花名册”
call the roll 就是点名
Three students slept late and missed roll call.
有3个学生起晚了，点名没到。
英语语法：短语leave out，let down的用法253.leave out遗漏，省略
用法：leave out侧重强调“遗漏”，与miss out的区别：miss out侧重指“错过”。
例句：The translation of the third paragraph of the article was left out.
文章第三段的翻译被漏掉了。
结构分析：The translation of the third paragraph of the article是主语(of the third paragraph of the article是后置定语)，was left out是谓语(过去时，被动时态)。
254.let down使失望
用法：let down如果后接宾语是人称代词，必须为宾格形式;也可以表示“放低，放下”。let down经常用于let sb down结构中。
例句：She promised her parents that she would not let them down before she left.
她在离开前向父母保证不会让他们失望。
255.let in让……进来
用法：let in也可以表示“(水)渗入，漏入”，常用作let sb/sth in。
例句：Although it’s a bit cold, you should open the window and let the fresh air in the room.
尽管有点冷，你也应该把窗户打开，让新鲜空气进入房间。
256.let out放出，泄漏
用法：let out作“放出”解时，与give away同义;也可以表示“解雇，出租，学校放学，剧院散场，训练结束”。
例句：Carbon dioxide let out by automobile exhaust has a great influence on people’s life.
汽车尾气排放的二氧化碳对人们的生活造成了很大影响。
0118作业动词短语：light up照亮
用法：light up也可以表示“容光焕发，面露喜色”;其后一般接表示物的名词。
例句：A candle is not enough to light up the whole room.
篇6：let的用法意思是什么
let的用法
let的用法1：let的基本意思是允许对方照其意思而行,引申可表示“出租”“放掉,松掉”等。用于数学中通常表示“假设”。
let的用法2：let用作及物动词作“出租”解时,可接名词或代词作宾语,也可接双宾语,其间接宾语可以转化为介词to的宾语;作“让,使”解时,通常接以形容词或不带to的动词不定式充当补足语的复合宾语;接动词不定式作宾语补足语时,如用于被动结构, to须保留。let还可接不带to的动词不定式作宾语,这时主要用于某些固定搭配中。
let的用法3：let用作不及物动词时主要表示“出租”,主语通常为物(如房子等),其主动形式含有被动意义。
let的用法4：在口语中, let常用于祈使句中表示建议、请求、命令、警告等;在书面语中,可用allow代替let。
let的网络释义
let
重发球; 出租; 触网球; 发球擦网后重发;
let off
宽恕，放过; 开(枪)，放(炮、烟火等)州)放; 排放; 免除;
let alone
更别提,不打扰; 更别提; 不打扰，不惊动，更别提; 不打扰;
let alone
更不用说; 不干涉; 听其自然; 别管，更不用说;
let down
放低; 失信; 出卖; 降低;
let相关词汇辨析
allow，let，permit，leave，authorize
这些动词均含“让、允许”之意。
allow 普通用词，侧重听任、默许或不加阻止。在正式场合可用来表客气的请求。
let 常用词，用于各种非正式场合，语气最弱，指允许或无力阻止某事，暗示漠不关心或听之任之。
permit 正式用词，在多数场合可与allow换用，语义最强，指准许某人做某事，含权威或正式的意味。
leave 侧重不加干涉。
authorize 语气最强，指权威性的允许与认可。
let的用法例句
1. Well, at any rate, let me thank you for all you did.
好吧，不管怎样，还是要感谢你所做的一切。
2. I let the horse drop his head to crop the spring grass.
我让马低下头啃吃春天的青草。
3. If they value these data, let them pay for them.
他们要是看重这些数据，就让他们出钱买。
4. He's pissed. Let's get out of his way before he starts spewing.
他很恼火。趁他还没有发作，我们赶快离他远点儿。
5. Now let me see, who's the man we want?
现在让我看一看，谁是我们要找的人?
6. “Let's invite her to dinner.” — “Over my dead body!”
“我们请她来吃晚饭吧。”——“除非我死了!”
7. Leave a vent open to let some moist air escape.
打开一个通风口，让潮气逸出一些。
8. Though Sybbis complained bitterly, Mama would not let up on her.
尽管西比斯大发牢骚，但妈妈不会放她一马。
9. He rang for the guard to let him out.
他按铃叫保安放他出去。
10. I let myself out into the street and pulled the door shut.
我出门上街并拉上了门。
11. She unbound her hair and let it flow loose in the wind.
她把头发解开，让它随风飘动。
12. “Let's get a coffee somewhere.”—“I know just the place.”
“我们找个地方喝杯咖啡吧。”——“我知道个好地方。”
13. The Doberman let out a string of roaring barks.
短毛猎犬一阵狂吠。
14. She heard him let out a pitiful, muffled groan.
她听到他发出一声令人悲悯的低沉的呻吟声。
15. She gathered loose soil and let it filter slowly through her fingers.
她捧起疏松的泥土，任其缓缓地从指间漏下。
篇7：英语语法：被动语态用法
英语语法：被动语态用法大全
概念
语态(Voice)是动词的一种形式，用以表示主语和谓语之间的关系。
英语的语态包括两种形式：
主动语态(active voice)和被动语态(passive voice)。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。
被动语态是动词的一种特殊形式，一般来说，只有需要动作对象的及物动词才有被动语态。主动语态表示主语是动作的执行者。巧记为：主动、主动、主去动。
Many people speak English.谓语：speak的动作是由主语many people来执行的。被动语态表示主语是动作的承受者，即行为动作的对象。
巧记为：被动、被动、主被动。English is spoken by many people.主语English是动词speak的承受者。He opened the door.他开了门。(主动句)The door was opened.门被开了。(被动句)
构成
His bicycle was stolen.The building has been built in 2000.通过上面的例句，可以看出，“被动语态”的构成是：be + 过去分词 ( + by + 动作执行者)
形式
被动语态由助动词be加及物动词的过去分词构成，强调动作是由什么人或什么东西而发出时，常用介词“by +行为发出者”，即be+done+by+行为发出者。
被动语态可用于各种时态，通过助动词be的变化来表示：
1、一般现在时的被动语态. am / is / are + 动词的过去分词Our classroom is cleaned every day.This car is made in China.
2、一般过去式的被动语态: was / were + 动词的过去分词His desk was cleaned just now.The station was built in 1928.
3、现在进行时的被动语态: am / is / are + being + 动词的过去分词A new factory is being built in our city now.Some trees are being cut down in the park.
4、过去进行时的被动语态: was / were + being + 动词的过去分词A new factory was being built in our city at that time.Some babies were being looked after by Miss Chen last year.
5、一般将来时的被动语态:(A) will / shall + be + 动词的过去分词(B) am / is / are + going to be +动词的过去分词.Some new factories will be built in our city this year.Your watch is going to be mended in an hour.
6、过去将来时的被动语态:(1)would / should + be + 动词的过去分词(2)was / were +going to be + 动词的过去分词.She said that some new factories would be built soon in our city.He thought that your watch was going to be mended after an hour.
7、现在完成时的被动语态:have / has + been + 动词的过去分词Some new factories have been built in the city since last year.Your watch has been mended already.
8、过去完成时的被动语态:had + been + 动词的过去分词He said that some new factories had been built in the city.I didn’t know that my watch had been mended .
9、含情态动词的被动式：can/may/must + be + done(1)You must hand in your homework after class.Your homework must be handed in after class.(2)He can write a letter with the computer.A letter can be written with the computer by him.
| 初中英语八大时态 | ||
| 一般现在时 | 一般过去时 | 一般将来时 |
| 现在进行时 | 过去进行时 | 过去将来时 |
| 现在完成时 | 过去进行时 |
运用
第一种情况：不知道动作的执行者，就是不知道谁干的Dan's bike was stolen last week. 丹的自行车上周被偷了。My windows were broken yesterday. 我的窗户昨天被打烂了。
第二种情况：没有必要交代动作的执行者，就是说：不用说出来大家也知道谁干的Rice is also grown in North China. 华北地区也种水稻。A new railway station will be built next year. 明年要建一座新的火车站。
第三种：为了强调动作的承受者，这里我们比较一下主动和被动：Prisoners of War built the bridge. 战俘修建了这座桥。此句的主句是 Prisoners of War，是来回答 Who built the bridge? 这个问句，所以此句强调的是动作的执行者---战俘，交代战俘做了什么事。变被动之后：The bridge was built by Prisoners of War.这座桥是被战俘修建的。这样说的话，主语变成了“the bridge”---这座桥，此句是回答 What was built? 所以此句是强调“什么被建造”即强调动作的承受者。又如：The book was written by Shi Naian. 这本书是施耐庵写的。以上是被动语态使用的三种情况或者说时机，第三种虽然强调动作的承受者，但一般也要交代动作的执行者，用 by + 执行者 来表达。
主动语态变成被动语态
1、从句子意义上说，就是重新找出“什么事物”是“被完成”的。
主动语态：人们说英语。People speak English in many countries.被动语态：英语被说。English is spoken in many countries..主动语态：我们造这座桥。We built this bridge last year.被动语态：这座桥被建造。This bridge was built last year.2、从语法的角度说，把原句的宾语改成主语。主动语态：小王邀请你(宾语)Xiao Liu has invited you to a lunch party.被动语态：你(宾语)被邀请。You has been invited to a lunch party by Xiao Wang.主动语态：你不准带走杂志(宾语)You must not take these magazines out of the reading-room.被动语态：杂志(宾语)不准被带走.These magazines must not be taken out of the reading room.主动语态：他们授给他(宾语)一枚奖章(宾语).They gave him a medal for his wonderful work.被动语态：他(宾语)被授予一枚奖章.He was given a medal for his wonderful work.被动语态：一枚奖章(宾语)被授给了他.A medal was given to him for his wonderful work.语态转换时所注意的问题
1. 把主动语态变为被动语态，其谓语动词的时态要与原句时态保持一致，其谓语动词的数要与新主语保持一致。We have bought a new computer.A new computer has been bought.A new computer have been bought. (错误)
2. 含有双宾语的主动句变被动句时，可分别将其中的一个宾语变为主语，另一个不动，一般变间接宾语为主语时比较多My uncle gave me a present on my birthday.I was given a present on my birthday.如果把直接宾语(指物)改为主语，则在间接宾语(指人)前加适当的介词，如上句还可以说：A present was given to me yesterday.
注意：1.一般在下列动词后，常在间接宾语前用介词 to，如：bring, give, hand, lend, offer, pass, pay, promise, sell, show, take, teach, tell 等。(1) The book was showed to the class.(2) My bike was lent to her.
2.一般在下列动词后，间接宾语前用介词 for, 如：build, buy, cook, cut, choose, do, fetch, find, fix, get, keep, make, order, paint, play, sing 等。(1) A new skirt was made for me.(2) The meat was cooked for us.(3) Some country music was played for us.
3. 由动词+ 介词或副词构成的短语动词，要把它们作为整体看，即把它们看成一个及物动词，介词或副词不可拆开或漏掉。这类动词有：不及物动词+ 介词，如: agree to, ask for, laugh at, operated on, listen to, look after, think of, talk about 等。The patient is being operated on. The problem is solved. It needn't be talked about.及物动词+ 副词：如：bring about, carry out, find out, give up, hand in, make out, pass on, point out, put away, put off, think over, turn down, work out, turn out 等。His request was turned down.The sports meet will be put off because of the bad weather4. 带复合宾语(宾语+ 宾补)的动词改为被动语态时，一般把主动结构中的宾语改为主语，而宾语补足语保留在谓语动词后面。
(1) We always keep the classroom clean.→The classroom is always kept clean.
(2) She told us to follow her instructions.→We were told to follow her instructions.注意：在see, watch, hear, notice, listen to, look at, make, feel等动词后作宾语补足语的动词不定式都不带 to，但改成被动语态后都带to，这时不定式为主语补足语，也就是说不定式作主语补足语不存在省略to 的问题。We often hear him play the guitar.→He is often heard to play the guitar.
5. 当主动句的主语是nobody, no one等含有否定意义的不定代词时，被动句中将其变为anybody,作by的宾语，并将谓语动词变为否定的被动语态。Nobody can answer this question.误：The question can be answered by nobody.正：The question can not be answered by anybody.
6. 当否定句中的宾语是anything, anybody, anyone等不定代词时，在被动句中应将其分别变为nothing, nobody, no one作主语，并将谓语动词变为肯定的被动语态。They haven't done anything to make the river clean.误：Anything hasn't been done to make the river clean.正：Nothing has been done to make the river clean.
7. 以who为主语开头的疑问句，变被动时，用by whom放在句首：Who wrote the story?误：Who was the story written?正：By whom was the story written?
8. 有些动词既是及物又是不及物，当它们和well, badly, easily等副词连用时，表示主语内在品质或性能，是不及物动词，用主动表示被动，这时不用被动语态，常见的有：write, read, clean, sell, wash, cook 等。(1)The cloth washes easily. 这布很好洗。(2)The new product sells well. 这新产品很畅销。对比：The books sell well. (主动句)The books were sold out. (被动句)The meat didn’t cook well. (主动句)The meat was cooked for a long time. (被动句)
9. 下列情况主动句不能改为被动句：第一，感官系动词一般用主动形式表示被动意义，如：feel，look, seem, taste, sound, remain等。(1)— Do you like the material?— Yes, it feels very soft.误：It is felt very soft.(2)The food tastes delicious.误：The food is tasted delicious.(3)The pop music sounds beautiful.误：The pop music is sounded beautiful.第二，谓语是及物动词leave, enter, reach, suit, have, benefit, lack, own等。He entered the room and got his book.误：The room was entered and his book was got.She had her hand burned.误：Her hand was had burned.第三，一些不及物动词短语没有被动语态：take place, break out, belong to, lose heart, consist of, add up to等。The fire broke out in the capital building.误：The fire was broke out in the capital building.第四，不及物动词没有被动语态，如：rise, happen, succeed, remain, lie等。When we got to the top of the mountain, the sun had already risen.误：The sun had already been risen.After the earthquake, few houses remained.误：After the earthquake, few houses were remained.第五，宾语是反身代词，相互代词，同源宾语，不定式，v-ing形式及抽象名词等，不能变为被动句子的主语，如：I taught myself English.误：Myself was taught English.We love each other.误：Each other is loved.
初中教材中与被动语态相关的句型
1.be covered with被……覆盖
2.be made of由……制作(发生物理变化)be made from由……制作(发生化学变化)be made in由(某地)制造be made by被(某人)制造3.be used for被用来……be used as被当作(作为)……来使用be used to do sth.被用来做某事4.It is said that...据说……It is hoped that...希望……It is well known that...众所周知……例如：
几种特殊的被动语态
1.带不定式的被动语态。The child is sure to be punished for that. 那个孩子肯定会因为那件事受罚的。2. 带介词的动词短语的被动语态。Such a thing has never been heard of. 这件事前所未闻。3. 带副词的动词短语的被动语态。The radio has just been turned off. 收音机刚刚被关上。4. 当sell, wash, clean, run, ride, wear, write等动词若有状语well, easily, badly来修饰时，用主动形式表达被动意义。The pen writes well. 这枝钢笔写字流畅。The book sells well. 这本书很畅销。
形式为主动，意义为被动。(中考难点)
1.由少数及物动词转化来的不及物动词(sell, clean, wash, cut, drive, wear, write等)，当句子的主语为物时，可用主动形式表被动意义。The car drives well.The cloth washes easily.2.在be worth doing, need doing中，主语是物，doing表示被动意义。The book is worth reading.The tree needs watering.3.形容词 cheap, dangerous, important, comfortable, interesting等接不定式做状语时，不定式的主动形式表被动意义。The old lady is easy to get along with.The question is difficult to answer.4.感官动词look, sound, taste, smell, feel等，主动语态表被动意义。You look unhappy.The cake tastes delicious.
口诀
一般现在时、一般过去时用be +及物动词的.过去分词，be有人称、时、数变。
完成时态have(has)done，被动将been加中间。一般将来shall(will)do，被动变do为be done。将来进行无被动，shall(will)be doing。现在完成时，被动 have(has)been done。现、过进行be doing，被动be加being done。情、助、有、是妥安排，一律随新主语变。否定助后加not，疑问一助置主前。主语恰是疑问词，直陈语序主在前。一般情助加be done，双宾多将间宾变。复合宾语宾变主，宾补、主补相应变。
