to什么时候能当介词用？
当to用作介词时，其后面接名词或代词，表示方向，意为“想……；到……”。如：go to school（去上学）；give it to me（把它给我）；Japan lies to the east of China.(日本在中国的东边。）等等。
当to后边接动词（原形）时，是动词不定式符号，没有任何意义。如：I want to meet him tomorrow.（我想明天去接他。） 动词不定式（短语）可以充当除谓语以外的各种句子成分。
根据上述讲解，你自己就可以分清那个to是介词了，不必要把每个短语都写给你。祝你学习进步！
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.
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.
希望这些能对你有一定帮助。
它本身就是介词词性，后面跟动词，动词一律用其ing形式。
to 本身就是介词
介词to是不是不能直接接动名词?
o作介词时，后面接动词－ing形式或是地点名词；to 还可用于 see to 和 come to 等短语动词中，它还与某些带双宾语的动词连用，以引出第二个宾语。重点词汇：to 英 ［tə； tu； tu：］释义：prep 朝；位于……；到某处；到某状态；差；给；对于；比；连着；对着；等于；向……表示敬意...
英文介词 有哪些
at, on 和in 作时间介词的比较:① at 表示具体时间点.② on 后可以跟表日期、星期、节日的词,还可以指具体某一天的早、中、晚.③ in 泛指一天的早、中、晚,还可以表示一段时间,如:周、年、月、季节等.二、before和after① before 表示:在……之前 \\x09\\x09before eight o’ clock 八点之前Spring ...
在时间前用什么介词.英语
9、before指“在……之前”，与after相对：Please come to school before 8 o’clock. 请8点前到校。10、by指“不迟于，到……时为止，在……以前”：We will have learned more than 3000 words by the end of this year.到今年底为止，我们将学习3000多个单词。11、till (until) “直到...
什么是介词
She will appear after five o’clock this afternoon.3)from, since 自从……from仅说明什么时候开始，不说明某动作或情况持续多久；since表示某动作或情况持续至说话时刻，通常与完成时连用。He studied the piano from the age of three.They have lived here since 1978.4)after, behind 在...
谁能告诉我时间介词in,on,at的用法
（1）表示“某一具体时刻（即几点几分时）”，须用介词at。例如：He gets up at six o'clock every day （2）用在特定的时候（时节、时机）时，须用介词at。例如：They were happy at that time.（3）表示“在中午、在夜晚、在周末”时，须用介词at。例如：What do you often do at noon?
英语介词有哪些、
4、短语介词 一个或两个简单介词和一个或几个其他词类构成一个短语，作用相当于一个介词，这就叫做短语介词。这类介词的末尾总是一个简单介词。如 according to，because of，by means of，in addition to，in front of， in spite of，into等。例如：Investors choose fund managers on the basis...
介词on,at,in后面接时间,怎么用
例 We get up at eight o’clock． 我们8点起床。My father are busily at work all day． 我父亲整天忙于工作。In western countries children get present from their parents at Christmas． 在西方国家，孩子们在圣诞节得到父亲给的礼物。实际上是有关介词in和on的区别。介词in和on在表示方位的...
在英语中,什么时候用介词of·for或to 等等 怎么区分这些介词
应该用to to 一般是前面是动词或名词，后面跟着动作的对象，for 一般是“为了”“对...来说”的意思，当然，也有特殊情况 of 一般用作表示“为谁所有”，不过这里的“谁”一般是东西，不是人，例如中国的人口，the population of China。of或者用作“对...来说”，例如，你真是太好了，It's v...
on the afternoon of March 22nd ,2013 这句话为什么用on和 o
日期具体到某年某月某日介词用on ,2013年五月二十二日 的 下午，……的 介词用of
几个介词的用法
+to+sb.。下列动词不能直接带间接宾语sb.,要接间接宾语时须在动词后加介词to:announce to通知某人, describe to向某人描述, explain to向某人解释, express to对某人表达, mention to提及, nod to向某人点头, report to报告, say to告知, shout to对某人大叫, suggest to对某人提建议,speak to与某人交谈, ...
杨钓希普：[答案] to动词不定时的符号,也是介词,通常看成是动词不定式的,to do 就是经常用的,但是有些短语用法是固定句型,如look forward to doing,这里的to就是介词,这个要看情况的,有些短语是要花时间背的,而不是纠结与是不是介词,记住就好了,通...
类乌齐县15744791384： 英语语法,to在什么情况下做介词?谢谢 - ？
杨钓希普： to接动词原型表动词不定式,接动名词,代词或动名词时就是介词.
类乌齐县15744791384： to什么时候是介词.什么时候是不定式...要怎么判断 我明天考试.快回答!!!!我还会多给分 - ？
杨钓希普： to后面是名词或名词性从句时是介词,.后面是动词如to do,to have done,to be done等时是动词不定式,做介词的情况不多,下列记着就行了: look forword to be used to(表习惯于做某事时) get down to object to be devoted to 这些不常见: ...
类乌齐县15744791384： ＂to＂何时作介词?？
杨钓希普： to这个词一般情况下只能做介词、副词或动词不定式的标志词(小品词). 当它后面接动词时,它是小品词; 当它后面接宾语(名词、代词、动名词、副词、介词短语等都可以用作宾语但动词永远不能做宾语)时,它是介词; 当上述两种情况都不符合时,to往往是副词,而且当它做副词时只能表示“苏醒”、“靠岸”等义. 如果不是to 引导的不定式 就做介词使用 to 做介词后面跟n 或者doing sth 这个没有规则,就得大量记
类乌齐县15744791384： 介词 知识讲解 to在什么时候用作介词( - ？
杨钓希普： 用名词或动名词作宾语的 to 就是介词,如: *go to a party 参加聚会 *to the right 到右边 *stick to the job 埋头到工作中 *look forward to doing sth. 期待做某事
类乌齐县15744791384： 高中英语短语 to什么时候是介词 - ？
杨钓希普： 1.当to用作介词时,其后面接名词,动名词,或代词宾格,表示方向,意为“想……;到……”.例如:Japan lies to the east of China.日本在中国的东边. 2.to后边接动词(原形)时,是动词不定式符号,没有任何意义.如:I want to meet him ...
类乌齐县15744791384： 什么时候to用作介词,什么时候用作不定式? - ？
杨钓希普：[答案] 我觉得这个得记,一般初中和高中主要用的也就那么几个,所以自己辛苦一些记住TO用作介词的就可以了.
类乌齐县15744791384： 什么时候把to做介词使用;什么时候不定动词使用 - ？
杨钓希普： 主要看to前面动词,比如admit to,再比如contribute to,devote to等等,这些是固定用法,积累一下就好了,不复杂的.关于admit,这两个意思要细心体会一下: admit to do 允许去做某事(还未做) admit doing 承认做过某事(做过了)中学常用的还有 forget,remember,regret 这几个,用法都类似.
类乌齐县15744791384： 英语中有带to的短语中to什么时候是介词 - ？
杨钓希普： 一般后面接名词的时候都为介词. 如:change to it seems to sb. I awoke to the sound of birds singing. be used to doing,习惯于 object to, 反对 devote oneself to, 致力于 stick to, 坚持 pay attention to,注意 respond to, 回答 look forward to...
类乌齐县15744791384： to在什么时候用作介词,就是以＂v.+to+doing＂的形式出现? - ？
杨钓希普： to 介词时,不是是以＂v.+to+doing＂的形式出现 一般是 v.+to +do ,这时 to 不是介词,而是动词不定式符号 to 作介词常出现在一些固定短语中,例如:pay attention to doing sth 注意…… look forward to doing sth 盼望…… devote to doing sth 投身于……
