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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Revision,The infinitive,动词不定式,定义：不定式的构成是,to+,动词原形,，当然,to,有时也可以省略,。动词不定式没有人称和数的变化，,可以担当除谓语外的任何句子成分。,构成：,to + do(,动词原形,),用法：,1,、,用作宾语,(v. + to do ),e.g: I want,to buy,a computer.,She hopes,to find,a better job.,I wish,to go,with you.,I found,it,difficult,to fall asleep,.,我发现很难入睡。,need,to do,learn,to do,agree,to do,stop,to do,plan,to do,decide,to do,go on,to do,try,to do,begin,to do,start,to do,refuse,to do,like,to do,forget,to do,remember,to do,2.,用作宾语补足语：,(v. +,sb.,+ to do ),She,asked,me,to help,her.,The teacher,told,him,to come,on time.,Edisons mother,taught,him,to read and write.,want,sb to do,wish,sb to do,get,sb to do,order,sb to do,find,sb to be,like,sb to do,would like,sb to do,help,sb to do,一感,:,feel,三让,let,make,have,二听,listen to,hear,四看,watch,see,look at,notice,宾语补足语不带,to,的情况,：,Let me do it.,I saw him cross the street.,比较：,I heard her singing in the next room.,I heard her sing in the next room.,3.,用作状语,(adverbial),：,He came,to show,me his new CD player.,I went there,to see,my teacher.,She came back,to get,her English book.,The boy was too frightened,to move,.,(,目的,),(,目的,),(,目的,),结果,It,与不定式：动词不定式可以做主语，但如果动词不定式太长，显得,头重脚轻,的，那么我们就,可用形式主语,it,代替,，而把真正主语,(,即不定式,),放于句尾。,e.g:,It,is not difficult for me,to,study English well.,对我来说学好英语不难。,4.,用作主语,1.,To go abroad,is his dream.,2.,To say,is easy,to do,is difficult.,不定式作主语时可将其用形式主语it来替换,It,is his dream to go abroad.,It,is easy to say,it,is difficult to do.,5.,用作表语,His work,is,to feed the animals.,Her job,is,to look after the patients.,My dream,is,to be a scientist.,6.,用作定语,Give,me something,to drink,.,I have two books,to read,.,They have much food,to eat,.,这时不定式与被修饰词有动宾关系。,假设是不及物动词，介词不能省略,He asked for a room,to live,in,.,I dont have a pen,to write,with,.,The ice is hard enough,to skate,on,.,He bought a toy,to play,with,.,7,.,疑问词,who, what, which, where, when, how,加,to do,可构成,不定式短语,，在句中可用作主语、,宾语、宾语补足语、表语等。,When to start,has not been decided.,I dont know,what to do,.,He can tell you,where to get the book,.,The question is,who(m) to ask,.,(,主语,),(,宾语,),(,宾补,),(,表语,),I dont know,how to use a computer,.,(,宾语,),注意：,在与why连用时，只用于why或why not开头的简短疑问句中，后面紧跟的动词不定式不带to。,Why not have a rest,too.to,太,.,以致于不能,.,enough to,足以,.,The box is,too,heavy for me,to,lift.,这个箱子太沉了，我提不动。,He is,old enough to,go to school.,他到上学的年龄了。,特殊用法,1、would rather，had better后。,e g: You had better stay at home.,2、Why. / Why not.后。,e.g：Why not have a good rest on Sunday 为什么星期天不好好休息一下呢,3、使役动词 let, have, make 等后接不定,e.g: Let him go! 让他走!,不定式,省,to,有四种情况：,宁愿；宁可,4、感官动词: see, watch, look at, hear, listen to, smell, feel, find 等后作宾补，省to。,如：I saw him dance. 我看见他跳舞。,其中help的to可省可不省,e.g: Let me do it.,e.g: I saw him cross the street.,比较：,I heard her singing in the next room.强调正在,I heard her sing in the next room.强调全过程,注意：这些情况在被动句中可千万不可省to 哟！ 被动语态中，“to要复原,e.g:The boss made them work the whole night.,=变成被动句：,They were made to work the whole night.,根据句意,用括号内所给动词的适当形式填空。,1. Its time for us,(have) supper,2. Would you like _ (go) shopping with me,？,3. It took us half an hour _ (work) out the problem,to have,主语,to go,宾语,to work,主语,4. He is old enough _ (join) the army,5. I am very glad _ (meet) you here,6.They prefer _ (stay) at home rather than go out,to join,结果状语,to meet,形容词补足语,(,原,),to stay,宾语,to say,定语,7. Have you got anything _ (say),8. We saw them_ (come) into the room just now,9. I am sorry,I forgot_ (tell) you the news,10. His plan is _ (spend) a few days in the mountains,11. Do you know when_ (start),？,come,宾补,to tell,宾语,to spend,表语,to start,不定式短语作宾语,12. He is too weak _ (carry) the big stone,13.,MrBlack asked the man_,(not jump) the queue.,14. Your father is sleeping. Youd better,_,(not wake)him up.,to carry,结果状语,not to jump,not wake,Game: make up a saying,Look for the old,so as to,learn the new!,for ,the, look , so , as , learn, new, the , to ,old !,温故而知新,!,以便；以致,THANK YOU,Hi, relax yourself!,
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