TO做介词的用法：
1.(表示方向、目的地) 向【短语：go/ walk/ travel/ climb/ run to ...(+地点)】
She went to the window and looked out.她走到窗前向外望去。
2.去 (参加)【短语：come/go to dinner/ party(活动)】
He came to dinner.他来吃晚饭。
3.附着 【短语：be tied to 附着于】
There was a piece of cloth tied to the dog's collar.有一条布系在狗项圈上。
4.(表示方位) 在 【to + 方位名词】
Hemingway's studio is to the right.海明威的工作室在右边。
5.给 [用法v+n+to+n] 【短语：give / pass sth. to sb.】
He picked up the knife and gave it to me.他捡起刀并拿给我。
6.(表示行为或情感针对的目标) 对于 [用法：adj/n+to+n]
Marcus has been really mean to me today.马库斯今天确实一直对我不友好。
7.对 (表示受某事影响) [用法：adj/n+to+n]
He is a witty man, and an inspiration to all of us.他是一个风趣的男人，对我们所有的人是一种鼓舞。
8.对… (说)【短语：speak/ explain to sb. 向某人说/解释】
I will explain to them that I can't pay them.我会向他们解释说我无法付钱给他们。
9.(表示反应或情感) 致使【短语：to one's surprise 让某人惊讶的是】
To his surprise, the bedroom door was locked.使他吃惊的是，卧室的门是锁着的。
10.在…看来
It was clear to me that he respected his boss.在我看来，显然他尊重他的老板。
11.(表示状态或形势等的变化) 成为
The shouts changed to laughter.叫喊声变成了笑声。
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