初中英语语法——非谓语动词（27张PPT）

课件27张PPT。非 谓 语 动 词非谓语动词动词不定式基本形式及特点用法注意事项动词不定式（1）基本形式： to+动词原形 （在某些情况下可以不带 to）(3) 用法 ：A、作主语 To learn a foreign language is not easy . = It’s not easy to learn a foreign language. 注意：不定式短语作主语如果太长，常用IT作形式主语，将不定式后置。除动词be外， 动词take,cost也常用于上述结构。B、作表语 The important thing is to finish the work on time . 动词不定式作宾语C动词 + to do动词+疑问词 + to do 动词 + it(形式宾语）+宾补 +to do常见动词有 agree,decide ,fail, hope, wish , want, plan 等I don’t know what to do .I find it important to learn English.动词不定式 Li Mei asked me to show her the new dictionary .注：有以上结构的常用动词有 tell. wish, ask, want , like, beg, invite,warn, allow,encourage,advise 等。(不带 to 的不定式) 注：常用的动词是：感官动词see, hear, feel, watch, notice； 使役动词 have ,make,let.动词不定式E、作状语可以表目的、表结果、表原因F、作定语（必须后置）动词不定式注意：在学习动词不定式的时候还有两点要注意哦！1、在感官动词和使役动词后作宾补时，不定式要省略to,但以上词变为被动语态时，要加上toI always saw her play violin .He was made to work 12hours a day.2、动词不定式的否定形式为： not + to doMr.Smith asked the boy _____(not play) this kind of game. not to playPlease have him _____(not do) so much housework. not do动 名 词基本形式及特征用法注意动名词基本形式特点动词原形 + ing 1、具有名词、动词的一些特征。2、有时态和语态的变化返回主页动名词用法1、作主语Picking apples is much better than having classes.2、作宾语（1）只能接动名词做宾语的动词有miss, finish, mind, keep, practice, enjoy, 等。动名词（2）既可接动词不定式又可接动名词作宾语的动词有两类：动名词3、作表语His favorite sport is playing basketball . 4、作定语 shopping basketball finishing line注意两点1、动名词的 复合结构为：名词所有格形容词性物主代词+ 动名词c返回主页2、动名词的习惯用语：a. It’s no use doing sth. b. can’t help doing sth.c. feel like doing sth.d. be busy doing sth.e. No doing分词现在分词过去分词现在分词基本形式：动词原形+ ing过去分词基本形式： 规则动词加ed 或不规则动词的过去分词developing countrydeveloped countryAre you ready ? OK ! Now ,have a test!HAVE A TEST1.I’ve worked with children before, so I know what ___ in my job. A. expected B. to expect C. to be expecting D. expects2.The patient was warned ____ oily food after the operation. A. to eat not B. eating not C. not to eat D. not eat 3.The speaker raised his voice but still couldn’t make himself____ . A.hear B. to hear C. hearing D. heard 4.--I usually go there by train. --Why not ____ by boat for a change? A. to try going B. trying to go C. to try and go D. try goingHAVE A TEST 7. Rather than ___ on a crowded bus, he always prefers ____ a bicycle. A. ride; ride B. riding; ride C. ride; to ride D. to ride; riding 6. She can’t help ____ the house because she’s busy making a cake. A. to clean B. cleaning C. cleaned D. being cleaned5. How about the two of us ____ a walk down the garden? A. to take B. take C. taking D. to be taking 8.He gave us s ... ...