介词to 和不定式符号to 用法全总结
核心区分：
不定式符号 to：后接 动词原形 —— to + do
介词 to：后接 名词 / 代词 / 动名词(doing) —— to + n. / pron. / doing
一、不定式符号 to（to + 动词原形）
1. 基本不定式结构：作多种句子成分
作主语
It is important to learn English well.
学好英语很重要
作宾语
I want to have a rest.
我想要休息一下
作宾语补足语
My mother tells me to get up early.
妈妈嘱咐我早起
作定语
I have a lot of homework to do.
我有很多作业要做
作状语（目的/结果/原因）
She gets up early to catch the bus.
她早起赶公交车（表目的）
作表语
My dream is to be a teacher.
我的梦想是成为一名老师
2. 常见固定动词 + to do（不定式）
hope to do 希望做某事
I hope to visit Beijing. 我希望去北京游玩
decide to do 决定做某事
He decides to study harder. 他决定更加努力学习
plan to do 计划做某事
We plan to go on a trip. 我们计划去旅行
try to do 尽力做某事
Try to finish the work on time. 尽量按时完成工作
refuse to do 拒绝做某事
She refuses to lie. 她拒绝说谎
want / would like to do 想要做某事
I’d like to drink some water. 我想喝点水
重要特例：省略to的不定式（感官动词/使役动词）
结构：make / let / have / see / watch / hear / feel + sb. + 动词原形
例句:
My dad makes me study every day.
爸爸让我每天学习
I saw him go into the classroom.
我看见他走进教室
（被动语态时要还原to：He was made to study.）
二、介词 to（to + 名词 / doing）
1. 动词短语 + 介词to
look forward to doing 期待做某事
I look forward to seeing you soon.
我期待早日见到你
be used to doing 习惯于做某事
He is used to getting up early.
他习惯早起
pay attention to doing 注意……
Please pay attention to listening carefully.
请注意认真听讲
prefer doing A to doing B 比起做B更喜欢做A
I prefer reading to watching TV.
比起看电视，我更喜欢阅读
devote … to doing 致力于……
She devotes time to helping others.
她花时间帮助别人
stick to doing 坚持做某事
Stick to practising every day.
坚持每天练习
2. 形容词/名词搭配 + 介词to
the key to … ……的钥匙 / 关键
the key to the door 房门钥匙
the key to success 成功的关键
the answer to … ……的答案
the answer to the question 问题的答案
be similar to 与……相似
My bag is similar to yours.
我的书包和你的很像
be good to 对……友善
Be good to animals. 善待动物
thanks to 多亏；由于
Thanks to your help, I passed the exam.
多亏你的帮助，我通过了考试
3. 表示方向、距离、对比、时间的介词to
朝向、到达
walk to school 步行去上学
go to bed 上床睡觉
差（时间）
ten to five 四点五十分（差10分钟到5点）
比较
prefer A to B 比起B更喜欢A
归属
belong to 属于
This book belongs to me. 这本书是我的
用括号内单词正确形式填空
1. I look forward to ______ (see) you soon.
2. My mother tells me ______ (go) to bed early.
3. He is used to ______ (drink) a cup of milk every morning.
4. I used to ______ (live) in a small village.
5. Please pay attention to ______ (spell) the words correctly.
6. It’s important ______ (learn) English well.
7. She devotes much time to ______ (help) poor children.
8. We decided ______ (visit) our grandparents this weekend.
9. The key to ______ (solve) the problem is hard work.
10. My teacher makes me ______ (read) the text every morning.
答案+解析
1. seeing
解析：look forward to 里 to 是介词 → doing
2. to go
解析：tell sb. to do sth. 不定式结构
3. drinking
解析：be used to doing 习惯于，to 是介词 → doing
4. live
解析：used to do 过去常常，to 是不定式符号 + 原形
5. spelling
解析：pay attention to 里 to 是介词 → doing
6. to learn
解析：It is + adj. + to do 不定式作真正主语
7. helping
解析：devote ... to doing 致力于，to 是介词 → doing
8. to visit
解析：decide to do sth. 不定式结构
9. solving
解析：the key to (doing) sth. ……的关键，to 是介词
10. read
解析：make sb. do sth. 使役动词，省略to的不定式，用原形
