To的用法
1、向，至，往
She's going to London。她要去伦敦。
Turn to the left.向左转。
Pisa is to the west of Florence.
比萨在佛罗伦萨的西面。
He has gone to school.他上学去了。
2、（用于表示一系列事物或一段时间的尽头或限度） 直到：from Monday to Friday从星期一到星期五 from beginning to end 从开始到结束。
3、用于表示接受者：Give that to me.把那个给我。
I am very grateful to my parents.我很感激我的父母。
What have you done to your hair?你把头发怎么搞的？
Sorry I didn't realize you were talking to me.对不起，我不知道你是在跟我说话。
4、接触到，针对
He put his hands to his ears.他将两手捂住耳朵。
They sat back to back.他们背对背坐着。She made no reference to her personal problems.他没有提及自己的个人问题。
5、达到某种状态：The meat was cooked to perfection.这肉煮得恰到好处。His speech reduced her to tears(=make her cry).他的话令她流泪。
6、（用于引出比较中的另一部分）：I prefer theatre to opera.我喜欢戏剧，甚于歌剧。
7、（用于表示数量每……等于：How many dollars are there to the euro?多少美元等于一欧元？
8、（用于表示时间）在……之前：It's ten to three.(=ten minutes before three o'clock).现在是三点差十分。
9、（用于表达对某物的看法或感受）：To me,it was the wrong decision.我认为那是错误的决定。It sounded liked a good idea to me.我觉得这听起来是个好主意。I don't think our friendship means anything to him.我认为我们的友谊对他说毫不重要。
10、（用于表达某人对某事的反应或态度）：To my surprise,I saw two strangers coming out of my house.我看见两个陌生人从我家里走出来，吃了一惊。His paintings aren't really to my taste.他的画真的不符合我的口味。
11、（与动词连用，构成不定式。）：I want to go home now.我现在想回家。Don't forget to write.别忘记写信来。I didin't know what to do.我当时不知道该怎么办。
12、（指门）关上Push the door to.把门推一推关上。
扩展资料：
TO
=Technical Observer 技术观察员；
Technical Order 技术说明；
Telegraph Office 电报局；
Transport Officer 运输军官；
Turn Over 翻过来，见后面
prep.
[表示方向、时间]朝...方向； 向； 往； 到
from north to south
从北到南
go to school
上学
keep to the right
靠右边走
turn to the left
向左转弯
ten minutes to nine 9
点差10分
[表示终点、程度、范围]达到，到； 趋于，倾向
be tired to death
累得要死
change from bad to worse
每况愈下
to a certain degree [extent]
到某种度[范围]
punctual to the minute
一分钟都不差
be rotten to the core
烂透了
[表示对立，反面，对应]针对；
a hand-to-hand fight
参考资料来源：百度百科-to