高中英语外研版必修三语法 不定式 Infinitive 讲解 练习教学教材.pptVIP

动词不定式;不定式由“to+动词原形”构成,其否定形式是“not/never to do”, 不定式可以作主语、宾语、状语、表语和定语，但不能单独作谓语。;结构 : to do (否定) not/never to do ;(1).I am sorry to hear that. I plan to attend the meeting to be held tommorrow.;(3).I am sorry to have kept you waiting. She pretended to have known it before. The room seems to have been cleaned already.;1. 作主语;三. 用法/ 功能;;I want to go home. I found it necessary to talk to him again.;不定式用在介词but, except, besides 后时,如果这些介词前有行为动词do的 各种形式,那么介词后的??定式不带to, 相反则带to.;The teacher told me to clean the blackboard. I expect you to give me some help.;I have something to say. He has a lot of homework to do. He is looking for a room to live in. There is nothing to worry about.; 1.当名词被the first ,the last, the only 等词以及 形容词最高级修饰时,常用动词不定式做定语。 eg: She is always the first to come and the last to leave.;2.不定式作定语时，作后置定语;eg: He spoke loudly (so as / in order) to be heard.;2. 表示原因 不定式可以用在作表语的形容词后作状语, sorry, surprised, happy, glad, eager, angry, foolish, right, wrong, slow, quick, rude, cruel, disappointed等。;3.结果状语: ….only to do adj. / adv.+ enough + to do too + adv. / adj. +to do;(8)不定式与疑问词who,which, when, how, what等连用，在句中起名词作用，可充当主语、表语、宾语等。;几对易混淆的词组： stop to do sth. 停止去做某事 doing sth.停止正在做．．． forget to do sth.　忘记去做．．． doing sth.　忘记已做了．．． remember to do sth.　记得去做．．． doing sth.　记得曾经做．．．;1. She said she ___ her uncle very much and hoped ____ him. A. missed, to hear from B. missed, to hear C. misses, hearing from D. misses, hearing;2. ______ a living, she had to work from morning till night. A. To make B. made C. Making D. To have made 3. Mrs Brown regretted ____ his son. A. beated B. beating C. beat D. beaten;4. I often hear him ___ about the great writer. A. to talk B. talk C. speaking D. to tell 5. Missing the last bus means ___ home. A. to walk B. walking C. walked