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1、知识导入 My parents encourage me to learn English well.parents : 主主语encourage: 谓语me：宾语to learn: 宾语补足足语（动词不定式不定式） 语法详解 动词不定式不定式1.不定式的基本概念不定式的基本概念to do 就是动词不定式（简称不定式），还有不带to的不定式。2.不定式的基本用法不定式的基本用法不定式不定式(to) do 在句子中可以充当主语、宾语、定语、表语、状语以及宾语补足语1. It is important to learn English well. (主主语)2. I want to play fo
2、otball. (宾语)3. I have something to tell you. (定定语)4.My dream is to be a doctor. (表表语)5.We went to the park to pick up rubbish. (目的状目的状语)6.He told me to get up early tomorrow morning. (宾语补足足语)有些有些动词的后面可以直接跟的后面可以直接跟to do作作宾语。例如：。例如：want decide refuse hope wish 想要想要决定决定拒拒绝希望希望希希望望expect promise 盼望盼望承若承
3、若 不不带to的不定式只能做的不定式只能做宾语补足足语。例如：1.What he said made us laugh for a long time. 宾补2.I saw him leave the hotel just now. 宾补有些动词的后面只能跟to do 做宾语补足语。例如：want ,get, like, tell, ask, encouragewant ,get, like, tell, ask, encourage想要想要 使使 喜欢喜欢 告诉告诉 要求要求 鼓励鼓励allow, invite, advise, warn, wishallow, invite, advise
4、, warn, wish允许允许 邀请邀请 建议建议 提醒提醒 希望希望有些有些动词的后面只能跟的后面只能跟do 做做宾语补足足语。例如:let , have ,make, see , 让使使看见watch, hear, listen to.观看听见听有一个有一个动词的后面的后面to do 和和 do 都可以做都可以做宾语补足足语。help sb (to ) do sth 帮助帮助课堂检测1.We decide _(play) tennis.2.My healthy lifestyle helps me _(get) good grades.3.He encourages us _(ask)
5、questions in class. 4.I find it difficult _(remember) everything. to get/getto askto rememberto play课后巩固( )1.The old man sold all his collections _ the children in hospital. A.to help B.help C.helped D.helps( )2.The math problem is so hard.I really dont know_. A.how to do B.how to do it C.what to do
6、 it AB( )3.Its nice of you _ me with my maths! A.help B. to help C. helping( )4.It is polite _a gift when you visit somebody for the first time. A.take B.taking C.to take( )5.They decided _at the end of this month. A.to leave B.going back C.travel D.not start outBCA( )6.What time do you expect her _
7、？A.arrive B.is arriving C.arriving D.to arrive( )7.This math problem is toodifficult.Can you show me _，George? A.what to work out B.to work it out C.how to work it out D.how to work out it( )8.In the past the children were made _ 15 hours a day. A.to lock B.work C.to work D.lockDCC中考必备下面是一些常下面是一些常见的
8、固定表达，的固定表达，请同学同学们牢牢记： 和和to do 连用的固定搭配用的固定搭配 ask sb. to do sth. 请求某人做某事求某人做某事 be pleased /be glad to do sth.很高很高兴做某事做某事 cant wait to do sth. 迫不及待地做某事迫不及待地做某事 cant afford to do sth. 不能担不能担负起干某事起干某事 decide to do sth. 决定做某事决定做某事 do/try ones best to do sth.尽全力做某事尽全力做某事 do nothing to do sth. 对.无能无能为力力 des
9、erve to do sth. 值得干某事得干某事 形容形容词/副副词+enough to do sth. 足以做某事足以做某事 encourage sb. to do sth. 鼓励某人做某事鼓励某人做某事 find + it + 形容形容词 +to do sth. 发现做某事做某事. get ready to do sth. 准准备做某事做某事 go on to do sth. 继续做某事做某事 hope to do sth. 希望做某事希望做某事 improve sth. to do sth. 改善改善/提高某物来干某事提高某物来干某事 invite sb. to do sth. 邀邀请
10、某人干某事某人干某事 Its better to do sth. 干某事比干某事比较好好 Its time to do sth. 到到该做某事的做某事的时间了。了。 like to do sth. 喜喜欢做某事做某事. need to do sth. 需要做某事需要做某事 plan to do sth. 计划干某事划干某事 prefer to do sth.+ rather than do sth. 喜喜欢.不喜不喜欢. 宁愿宁愿.而不愿而不愿.refuse to do sth. 拒拒绝干某事干某事 like sb. to do sth. 喜喜欢某人做某事某人做某事 love to do st
11、h. 爱做某事做某事 learn to do sth. 学会做某事学会做某事 make ones mind to do sth. 下决心做某事下决心做某事 make a list of five ways to do sth. 列出干某事的五种方列出干某事的五种方式的清式的清单 stop to do sth. 停下来去做另一件事停下来去做另一件事 start/begin to do sth. 开始做某事开始做某事 seem to do sth. 似乎要做某事似乎要做某事 set ones mind to do sth. 一心要做某事一心要做某事 tell sb. to do sth. 告告诉某
12、人做某事某人做某事 too.to do sth. 太太.以致于不能以致于不能. try to do sth. 努力努力/试着去做着去做. remember to do 记得要去做某事得要去做某事 The best time to do sth. is.干某事的最干某事的最佳时间是.think it necessary for sb. to do sth. 认为某人某人有必要干某事有必要干某事 Theres no time to do sth. 没没时间做某事做某事 teach sb. (how) to do sth. 教某人干某事教某人干某事 used to do sth. 过去常常干某事去常
13、常干某事 wish sb. to do sth. 希望某人做某事希望某人做某事 would love to do sth. 很愿意做某事很愿意做某事 would like (sb.) to do sth. 想想让某人做某事某人做某事 want to do sth. 想做某事想做某事 和和 do 连用的固定搭配用的固定搭配 hear sb. do sth. 听听见某人做某人做过做某事做某事 (sb. be heard to do sth.) watch sb. do sth. 观看某人做了看某人做了. feel sb. do sth. 感感觉某人做了某事某人做了某事 have sb. do sth. 使得某人做某事使得某人做某事 had better + (not) do sth. 最好做（不做）某事最好做（不做）某事 let sb. do sth. 让某人做某事某人做某事 make sb. do sth. 使某人做某事使某人做某事 (sb. be made to do sth.) Why not do sth? 为何不做某事何不做某事?
