什么情况下要加to

英语句子里什么时候动词前面得加to，什么时候不用~

一：表示相对，针对
be strange (common, new, familiar, peculiar, distinct, sensitive, immune, vulnerable, indispensable) to
Air is indispensable to life.
Aircrafts are vulnerable to interference caused by radiation.
This injection will make you immune to infection
二：表示对比，比较
1：以-ior结尾的形容词，后接介词to表示比较，如：superior ,inferior,prior,senior,junior
The quarrel happened prior to my arrival.
2:一些本身就含有比较或比拟意思的形容词，如equal，similar，equivalent，analogous
A is similar to B in many ways.
3：表示一些先后顺序的形容词，如：second,subsequent,next,preliminary,preparatory
Subsequent to the war,they returned to their hometown.
4:to也偶尔出现在个别动词之后,与动词形成固定词组,表示比较,如:prefer to,compare to,in contrast to compare to sth.表示比喻或比拟,而compare with sth.表示比较,如:
World is usually compared to a stage
Compared with his past,he has changed a lot.
Prefer的正确句型是:prefer A to B或prefer doing A to doing B,但当prefer后接动词不定式时,表示比较的介词to就要改成rather than ,如:
The undaunted soldier preferred death to surrender.
Many people prefer spending money to earning money.
They prefer to pursue careers rather than remain home as house wives.
5:to与及个别的名词构成比较之意,如:alternative
Going to an under water concert is a great alternative to going to dinner.
三:表示修饰关系
1:表示回复,反应意思的词,如:answer to question,
solution to problem,response to inquiry,reaction to proposal,reply to letter
2:表示建筑构件的词汇,如: entry,entrance,approach,access,passage,exit,vent,path
the approach to a bridge引桥
the approach to science
Half of the population was estimated to have no access to the health service.
The access to education 接受教育的机会
The access to medical care 享受公费医疗的权利
4:表示人物职位和官衔的词,如:assistant to manager, ambassador to Spain, successor to tradition, heir to throne,deputy to the National People’s Congress
advisor to the Prime Minister
5:表示权利和许可的词汇,如:right,admission
The employee finally got the admission to the boardroom.
Everyone has an equal right to ……..
6:表示栅栏或障碍的词汇,如:bars to development,the barrier to progress
7:表示与书籍,文本相关的词,如:introduction to passage.
8:表示恭喜或是祝贺,如:
The director proposed a toast to the health of the guests.
Let’s drink to Dick’s success in business
9:另外还有一些名词符合这种用法,有的具有两者息息相关,缺一不可的含义.如:key to door,invitation to party,
guide to action,limitation to life,accessory to school
四:to还具有依据,伴随,和着节奏的含义,如:sing to piano, chance to the tune, stamp to the rhythm of the song, add salt to taste
五:表示趋势或倾向,如:tend to,be prone to,be inclined to,be apt to,be liable to
He’s liable to seasickness.
You are liable to come to wrong conclusion.
六:表示对事情的坚持与执着,如:sick to,hold o,adhere to,cling to
He still holds on to his original views.
七:表示约束,局限,如:limit to,confine to,resrict to
He’s confined to the house by illness.
He confined his remarks to scientific mangement.
八:表示一种习惯或是一种适应性,如:get (be) to,used to,be accustomed to
Finally,the students got used to my teaching method.
十:表示起因和原由,如wing to,due to,thanks to,attribute to,come down to
The flight was cancelled due to the thick fog.
The famous artist attributed his success to his wife.
十一:表示目的或结果,如:aim to,lead to,give rise to
I aim to be an excellent college teacher.
His conceit lead to his failure.
These bad condition has given rise to a lot of crises
十二:表示命运,注定,如:be doomed to,be destined to,
All military adventures by the two super powers are doomed to fail.
十三:表示数量上的积累或增加,如:in addition to,add to,amount to
In addition to relief supplies,he also presented with some money.
The annual output of steel amounts to 1200 tons.
十四:表示全身心投入的含义,如:be addicted to,contribute to,devote to,commit to
He is determined to devote all his life to his.
十五:表示展望或是回顾,如:look forward to反date back to
The church dates back to the 13th century.
十六:表示方位概念.如:close to,next to
I don’t like wool next to my skin.
十七:表示依靠或借助,如:resort to,turn to,appeal to,
He usually appeals to arms to settle the territory dispute.
十八:表示有关注,关于:as to,with regard to
十九:表示关注或重视,如:pay attention to,attach to,
We should attach primary importance to job training.
二十:表示依据或是根据,如:according to,in proportion to
According to today’s newspaper,the match will be postponed.
The lending countries subscribe towards capital stock in proportion to their economic importance.
二十一:表示应该或必须含义的句式,如:
It’s time to get up.
We are supposed to get here at seven.
It’s up to this country to ban nuclear weapons.
二十二：表示相关联，相连接，如：be related to,be relative to,in relation to,be relevant to,link to
Investigate all the facts related to the problem.
People often linked walth to happiness.
二十三：表示反对和赞同。
1：to引导的表示反对，抗拒，对抗意义的词组。Be opposed to,be oppsist to,be contrary to,be adverse to,be resistant to,be contradictory to,object to,oppose to,deny tp,be aline to
These buildings are resistant to earthquake.
They are to tally opposed to any changes being made in the plans.
2:to引导的表示同意，赞同意义的词组：consent to,subseribe to,
The employer consented to give him a salary raise.表示调整，使符合，使适应的含义，如：adapt to,commodate to,adjust to,conform to,habituate to,fit to,suit to,correspond to,cater to
She tried to habituate herself to the style of plain living.
Your action should conform to the interests of the people.
They offered various foods to cater to the need of customers.
His words doesn’t fit to his actions.
Suit your writing style to the masses.
3:表示投降,屈服,服从的含义,如:be subject to,be subordinate to,submit to,subject to,surrender to,give in to,confess to,admit to.
The minority is subordinate to the majority少数服从多数
Countries nearby oceans are always subject to earthquake.
He confessed to having robbed the woman of her wallet.
We’re not the kind of people to yield to any military threat.
常用词组
respond to（反应）,appeal to（吸引）,catch on to（理解）,listen to（收听）,used to（过去常常）,give birth to,attend to（照料）,see to（负责）,be entitled to（有权）,belong to（属于）,come to（苏醒）,stand up to（勇敢面对）,help oneself to（请自便）,refer to,to the point（切题）,
Train them to stand up to any severe test in hard.
The ticket entitled you to a free meal in the luxury hotel.
See to it that the children get a hot meal after their swim.
You will catch on to the job shortly after wards.
People usually refer to television for up-to-the-minute news

1.We must have enough food to keep healthy

这里的to是have sth to do 带的,是固定搭配

①have sb．／sth．do sth．与have sb．／sth．doing sth．两者都是宾语发出的主动动作。前者指 “使某人／物做某事（指一次性的具体的动作）”；后者指“使某人／物一直处于某种状态”，常接一段时间作状语。②have sth．done这一结构中的宾语与宾补动词是被动关系。③have sth． to do这一结构中的have意为“有”，即“有某事要做”。解题时要注意这四个结构的形式变化，如对宾语提问、被动结构等。

2.It`s my duty to save patiens.

be duty to do sth 固定搭配

3.We should not go to crowded places.

go to do sth 固定搭配=want to do

4.I help my mother cook at home.

help sb do sth 固定搭配

help sb. do sth / help sb. to do sth. 通常情况下是通用的, 没有大的区别.
唯一的区别在于: +to 表示间接帮助; 不+to, 表示直接帮助

to的用法

一：表示相对，针对

be strange (common, new, familiar, peculiar, distinct, sensitive, immune, vulnerable, indispensable) to

Air is indispensable to life.

Aircrafts are vulnerable to interference caused by radiation.

This injection will make you immune to infection.

二：表示对比，比较

1：以-ior结尾的形容词，后接介词to表示比较，如：superior ,inferior,prior,senior,junior

The quarrel happened prior to my arrival.

2:一些本身就含有比较或比拟意思的形容词，如equal，similar，equivalent，analogous

A is similar to B in many ways.

3：表示一些先后顺序的形容词，如：second,subsequent,next,preliminary,preparatory

Subsequent to the war,they returned to their hometown.

4:to也偶尔出现在个别动词之后,与动词形成固定词组,表示比较,如:prefer to,compare to,in contrast to compare to sth.表示比喻或比拟,而compare with sth.表示比较,如:

World is usually compared to a stage

Compared with his past,he has changed a lot.

Prefer的正确句型是:prefer A to B或prefer doing A to doing B,但当prefer后接动词不定式时,表示比较的介词to就要改成rather than ,如:

The undaunted soldier preferred death to surrender.

Many people prefer spending money to earning money.

They prefer to pursue careers rather than remain home as house wives.

5:to与及个别的名词构成比较之意,如:alternative

Going to an under water concert is a great alternative to going to dinner.

三:表示修饰关系

1:表示回复,反应意思的词,如:answer to question,

solution to problem,response to inquiry,reaction to proposal,reply to letter

2:表示建筑构件的词汇,如: entry,entrance,approach,access,passage,exit,vent,path

the approach to a bridge引桥

the approach to science

Half of the population was estimated to have no access to the health service.

The access to education 接受教育的机会

The access to medical care 享受公费医疗的权利

4:表示人物职位和官衔的词,如:assistant to manager, ambassador to Spain, successor to tradition, heir to throne,deputy to the National People’s Congress

advisor to the Prime Minister

5:表示权利和许可的词汇,如:right,admission

The employee finally got the admission to the boardroom.

Everyone has an equal right to ……..

6:表示栅栏或障碍的词汇,如:bars to development,the barrier to progress

7:表示与书籍,文本相关的词,如:introduction to passage.

8:表示恭喜或是祝贺,如:

The director proposed a toast to the health of the guests.

Let’s drink to Dick’s success in business

9:另外还有一些名词符合这种用法,有的具有两者息息相关,缺一不可的含义.如:key to door,invitation to party,

guide to action,limitation to life,accessory to school

四:to还具有依据,伴随,和着节奏的含义,如:sing to piano, chance to the tune, stamp to the rhythm of the song, add salt to taste

一：表示相关联，相连接，如：be related to,be relative to,in relation to,be relevant to,link to

Investigate all the facts related to the problem.

People often linked walth to happiness.

二：表示反对和赞同。

1：to引导的表示反对，抗拒，对抗意义的词组。Be opposed to,be oppsist to,be contrary to,be adverse to,be resistant to,be contradictory to,object to,oppose to,deny tp,be aline to

These buildings are resistant to earthquake.

They are to tally opposed to any changes being made in the plans.

2:to引导的表示同意，赞同意义的词组：consent to,subseribe to,

The employer consented to give him a salary raise.表示调整，使符合，使适应的含义，如：adapt to,commodate to,adjust to,conform to,habituate to,fit to,suit to,correspond to,cater to

She tried to habituate herself to the style of plain living.

Your action should conform to the interests of the people.

They offered various foods to cater to the need of customers.

His words doesn’t fit to his actions.

Suit your writing style to the masses.

3:表示投降,屈服,服从的含义,如:be subject to,be subordinate to,submit to,subject to,surrender to,give in to,confess to,admit to.

The minority is subordinate to the majority少数服从多数

Countries nearby oceans are always subject to earthquake.

He confessed to having robbed the woman of her wallet.

We’re not the kind of people to yield to any military threat.

五:表示趋势或倾向,如:tend to,be prone to,be inclined to,be apt to,be liable to

He’s liable to seasickness.

You are liable to come to wrong conclusion.

六:表示对事情的坚持与执着,如:sick to,hold o,adhere to,cling to

He still holds on to his original views.

七:表示约束,局限,如:limit to,confine to,resrict to

He’s confined to the house by illness.

He confined his remarks to scientific mangement.

八:表示一种习惯或是一种适应性,如:get (be) to,used to,be accustomed to

Finally,the students got used to my teaching method.

十:表示起因和原由,如:owing to,due to,thanks to,attribute to,come down to

The flight was cancelled due to the thick fog.

The famous artist attributed his success to his wife.

十一:表示目的或结果,如:aim to,lead to,give rise to

I aim to be an excellent college teacher.

His conceit lead to his failure.

These bad condition has given rise to a lot of crises

十二:表示命运,注定,如:be doomed to,be destined to,

All military adventures by the two super powers are doomed to fail.

十三:表示数量上的积累或增加,如:in addition to,add to,amount to

In addition to relief supplies,he also presented with some money.

The annual output of steel amounts to 1200 tons.

十四:表示全身心投入的含义,如:be addicted to,contribute to,devote to,commit to

He is determined to devote all his life to his.

十五:表示展望或是回顾,如:look forward to反date back to

The church dates back to the 13th century.

十六:表示方位概念.如:close to,next to

I don’t like wool next to my skin.

十七:表示依靠或借助,如:resort to,turn to,appeal to,

He usually appeals to arms to settle the territory dispute.

十八:表示有关注,关于:as to,with regard to

十九:表示关注或重视,如:pay attention to,attach to,

We should attach primary importance to job training.

二十:表示依据或是根据,如:according to,in proportion to

According to today’s newspaper,the match will be postponed.

The lending countries subscribe towards capital stock in proportion to their economic importance.

二十一:表示应该或必须含义的句式,如:

It’s time to get up.

We are supposed to get here at seven.

It’s up to this country to ban nuclear weapons.

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五华县19379269818： to在什么情况下才加在一个词前面 - ？
莘卖柏子：[答案] 呵`很多吖 1,这个词前面的动词是不及物动词,需要加介词正好加的是to,比如:give it to me,start to do,continue to do…… 2,需要动词词组做主语,要不用ing形式,再就是加to 表目的,比如:To do things well,we should``` 基本形式就这么两个,...

五华县19379269818： 请问英语里在什么情况下要加to? - ？
莘卖柏子：[答案] 很多的,这样子讲起来有点抽象了. 比如 带to的固定短语 固定搭配, to do 不定式, 表示目的、对比、比较也可以用to, 还有就是形式主语里面用to,It is to~ 很多的,这样子也说不完. 建议去翻看一些语法书籍,帮助大些.

五华县19379269818： 在英语中什么时候加to,具体一点 - ？
莘卖柏子：[答案] to 有两个最基本的作用:作介词 和动词不定式. 1,作介词: To 作介词通常指方位,指具体到某个地点,通常它前面是动词,也可以是名词,后面一般都是名词(地点). 例如: go to school (动词+to+地点) come to my house(同上) ＂the will to ...

五华县19379269818： 英语句子在什么情况下加to - ？
莘卖柏子：[答案] 有2种情况吧. 1)作介词.有“往”、“去”“给”等等的意思. 2)不定式.to do sth.的形式. 例如: I want to go to school. 在这句话中,第一个to是不定式,第二个to是作为一个介词.

五华县19379269818： 什么时候加to?分几种情况?有哪些经典题目? - ？
莘卖柏子：[答案] 向,往,到 She lives in the house to the right.她住在右边的房子里. This road leads to Paris.这条路通往巴黎. (表示距离)离 (表示时间)直到,在...之前 He wrote from morning to night.他从早到晚写东西. (表示程度,范围)到,达 He was wet to ...

五华县19379269818： 英语在什么情况下动词前面加to? - ？
莘卖柏子： 做名词 TO BE A TEACHER IS MY DREAM 两动词间 I GO TO SWIM EVERYDAY 表目的 固定用法: TO SOME EXTENT

五华县19379269818： 在什么情况在动词前面要加to或后面加ing? - ？
莘卖柏子：[答案] 最多见的是: 当前面已有一动词,后面的动词前加to. 当动词作动名词时,在后面加ing. 请读语法书,即全面又准确. 祝好!

五华县19379269818： 请问英语句子中什么时候该加to英语词组像let sb do sth help sb to do sth ask sb ……有的有to,有的不加to,怎么能知道什么时候该加to,什么时候不加to呢? - ？
莘卖柏子：[答案] 关于to的用法,要根据具体情况而定. 一般来说, 情态动词后不加to直接加v.(原) 行为动词加to do sth.(如:need) 主要是平常短语的积累.

五华县19379269818： 什么情况下要加to - ？
莘卖柏子： 1.We must have enough food to keep healthy 这里的to是have sth to do 带的,是固定搭配 ①have sb./sth.do sth.与have sb./sth.doing sth.两者都是宾语发出的主动动作.前者指 “使某人/物做某事(指一次性的具体的动作)”;后者指“使某人/物...

五华县19379269818： 在英语里什么情况下动词前面要加to? - ？
莘卖柏子： 有的动词后要跟to,如 want to do sth. 而有的句子要表达目的的时候 也用to 如 using the pen to write.