中考英语不定式用法梳理（背诵版）
一、基本形式
肯定：to + 动词原形
否定：not to do
二、不定式 5 大作用
1. 作主语
It’s + adj. + to do sth.
It’s important to learn English.
2. 作宾语（跟在动词后）
want / hope / decide / plan / agree / learn / choose / fail + to do
3. 作表语（be 动词后）
My dream is to be a teacher.
4. 作定语（修饰名词，放后面）
I have a lot of homework to do.
It’s time to have class.
5. 作状语（表目的/原因/结果）
表目的：I get up early to catch the bus.
= In order to catch the bus…
三、中考必考：只能 + to do 的动词
口诀：想要学会，希望决定；答应计划，努力学习
want, hope, wish, learn, decide, agree,
plan, try, choose, fail, refuse, afford, prepare
四、中考必考：动词 + sb. + to do sth.
1. 高频必背
ask sb. to do 要求/请某人做
tell sb. to do 告诉某人做
want sb. to do 想要某人做
allow sb. to do 允许某人做
encourage sb. to do 鼓励某人做
advise sb. to do 建议某人做
warn sb. to do 警告某人做
invite sb. to do 邀请某人做
expect sb. to do 期望某人做
teach sb. to do 教某人做
wish sb. to do 希望某人做
2. 否定形式
动词 + sb. + not to do
ask/tell/warn/advise sb. not to do
3. ❌ 不能加 sb. to do
hope / decide / plan / agree
只能：hope to do，不能：hope sb. to do
五、疑问词 + 不定式（中考必考）结构：
what / which / who / where / when / how + to do
（不能用 why + to do）
作用：作宾语（放在动词后）
know, ask, tell, learn, decide, wonder, show
例句：
I don’t know what to do.
Please tell me how to use it.
He doesn’t know where to go.
Can you show me which to choose?
同义改写（宾语从句 ↔ 疑问词+to do）
I don’t know what I should do.
= I don’t know what to do.
六、必须省 to 的动词（感官/使役）
一感：feel
二听：hear, listen to
三让：let, make, have
四看：see, watch, notice, look at
结构：v. + sb. + do
I saw him enter the room.
⚠️ 被动语态要加回 to：
He was seen to enter the room.
七、to do 与 doing 意义不同（必考点）
1. stop to do 停下来去做（另一件事）
stop doing 停止做（正在做的事）
2. remember to do 记得要做（未做）
remember doing 记得做过（已做）
3. forget to do 忘记要做
forget doing 忘记做过
4. try to do 尽力做
try doing 试着做（看效果）
5. go on to do 接着做另一件事
go on doing 继续做同一件事
八、固定句型（直接背）
1. It’s + adj. + (for/of sb.) + to do
2. too…to… 太……而不能……
3. …enough to… 足够……去……
4. ask / tell / want / allow / encourage sb. to do
5. ask / tell / warn sb. not to do
九、中考最易错点
1. to 是介词，后面 + doing
look forward to doing期待做某事
pay attention to doing
be used to doing 习惯于
2. 不带 to 的固定搭配
had better do
why not do
would rather do
