固定用法(非谓语动词)：以下是带to的动词不定式常见搭配
★希望做某事hope to do sth. ★决定做某事decide to do sth.
★同意做某事agree to do sth. ★需要某人做某事need to do sth.
★使用某物做某事use sth to do sth ★迫不及待做某事can’t wait to do
★准备做某事get/be ready to do ★尽力/努力做某事try to do sth
★计划做某事plan to do sth. ★不得不have to do
★轮流做某事take one’s turns to do sth. ★拒绝做某事refuse to do sth.
★告诉某人做某事tell sb. to do sth. ★请某人做某事ask sb. to do sth.
★希望某人做某事wish sb. to do sth. ★教某人做某事teach sb. to do sth
★想要某人做某事want /would like sb.to do sth.
★同意某人做某事agree sb. to do sth. .
★喜欢/想要某人做某事 like sb. to do sth.
★帮助某人做某事help sb. to do sth/help sb.do
★encourage sb to do鼓励某人做
★It’s one’s turn to do sth. 轮到某人做某事
例句:It your turn to clean the blackboard.
★It’s time(for sb.) to do sth.是某人做某事时候了
例句:It’s time for me to go home.
★It’s +adj. for/of sb. to do sth. 对于某人来说做某事是……（当adj.是表示性格、品德的形容词时用of）
例句: It is easy for me to learn it well. It is very kind/foolish/nice of you to do so.
★ It takes sb. sometime to do sth. 某人做某事花了某时间
例句: 1.It takes me an hour to get to school by bike.
2.It took me an hour to watch TV last night.
3.It will take her two weeks to finish the work.
★too+adj./adv. to do sth. 太…..而不能
例: He was to angry to say a word.
★find/think/feel it +adj. to do sth.发现/认为/感到做某事是…
例: I find/think/feel it hard to learn English well.
★序数词+to do 第…..个做某事
例句:Who is the first to get there?
★我不知/忘记了怎么办。I didn't know/forgot what to do.
★ 离开房间时不要忘记/记住关灯
例句:Don’t forget/Remember to turn off the lights when you left the room
★ be+adj+to do sth
例句:1.I am very sorry to hear that.
2.I am ready to help others.
3.I am happy/pleased/glad to meet you.
顺口溜：本领最多不定式，主表定补宾和状；样样成分都能干，只有谓语它不敢；大家千万要小心，有时它把句型改；作主语时用it，自己在后把身藏；七个感官三使役，宾补要把to甩开；疑问词后接上它，宾语从句可充当；逻辑主语不定式，不定式前加for sb.；to前not是否定，各种用法区别开。
以下是不带to的动词不定式(即动词原形)的常见用法
★ let sb. do sth让某人做某事 ★ make do sth使得某人做某事
★ hear do sth do sth听见某人做某事 ★see do sth do sth看见某人做某事
★ why not 或why don’t you +动词原形？为什么不….?（表示建议）
例:Why not/Why don’t you take a walk?
★ 某人+had better( not)do 某人最好(不)做某事
★ 情态动词can/may /must /should+ 动词原形（包括情态动词的否定形式+动词原形）
★ 助动词do/does/did/will/would在构成疑问句或者构成否定句即don’t /doesn’t /didn’t /will not /would not+ 动词原形
★ be going to + 动词原形（表示“即将”“打算” 做某事）
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