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,2020/5/17,#,Unit 6 Topic 1,复习课件,1,.,语法知识,：,动词不定式,2.重点短语讲解,3,.,短语归纳总结,Unit 6 Topic 1 复习课件1.语法知识：动,1,动词不定式,(,一,),定义：,动词不定式是动词的一种非谓语形式，所谓,非谓语动词,就是,不作,谓语，没有人称和数的变化。通常前面带有to,其基本形式由,“to+动词原形”,构成，有时to也可以省略。,(1)不定式的肯定式:,to do,(2)不定式的否定式:,not to do,（解释：变否定句就是在,to,的前面加,not,),(3)动词不定式在句中充当,主语、宾语、表语、宾语补足语、定语和状语,。如：,1.,Grammar,语法,知识,动词不定式1.Grammar 语法知识,2,1.,不定式,to do,功能,例句,作主语,Its important for us,to learn,English well.,To see,is to believe.,作表语,The best way to raise money,is,to sell flowers.,作宾语,We,decide to,take the train.,作宾补,Miss Wang,ask,ed,Kangkang,to book,the tickets.,作定语,I have some exciting,news,to tell,you.,作状语,Why dont we put on a show,to raise,money?,1.不定式 to do功能例句作主语Its importa,3,动词不定式：,1.,作主语,动词不定式作主语时，为了保持句子平衡，,常用,it,作,形式主语,，而,将真正的主语,动词不定式,后置,。,其常用句型为:Its+adj.+(of/for sb.)to do sth,e.g._ the environment.,“保护环境对于我们来说是很重要的。”,_ “你帮助我真是太好了,Its important for us,to protect,Its kind of you,to help me,.,动词不定式：Its important for us to,4,讲解：,for,与,of,的区别。,如果句子中作表语的形容词,表示,事物,的性质,，如important,necessary,possible,easy,difficult,hard,heavy等，,用for引出,；,如果句中的形容词,表示,人,的特征、品德或意愿,如 kind,honest,careless,lazy,stupid,clever,foolish,polite,bad等，,则用of 引出,。,e.g.,Its kind,of,you to help me.,e.g.Its difficult(,for,us)to learn foreign languages.,2.,To,learn foreign languages,is,difficult,To learn English well,is,not easy.,解释：（动词不定试作主语是，谓语动词用,三人称单数形式,）,。,讲解：for 与of 的区别。,5,2.作表语,动词不定式可作表语，说明主语的具体内容。也常表示将来的动作，主语常常是表示意向、打算、计划的词。如wish,dream,idea,task,purpose,duty,job等。,e.g.My dream is,to become a pilot,in the future.,我的梦想就是将来当一名飞行员。,The most important thing is,to save the boy first.,最重要的事情是先救那个男孩。,The best way to raise money is _.,“筹钱的最好方法就是卖报纸。”,to sell newspapers,2.作表语to sell newspapers,6,3.不定式作宾语,（,1,）,动词不定式作,及物动词,的宾语，常用的及物动词有：,Begin,want,hope,forget,remember,like,love,need,try,ask,learn,wish,agree,choose,start,plan,decide,refuse 等。,e.g.I like,to watch TV.,我喜欢看电视。,He wants,to swim,.他想要游泳。,I plan,to visit Hangzhou,next month.,我打算下个月去杭州参观。,解释：（,及物动词,后面才,能直接,跟宾语。,不,及物动词,后面,不能直接,跟宾语，需要,跟介词,才能直接跟宾语。）,(2),在,find,think,等后跟动词不定式作宾语时，常用,it,作形式宾语，而将真正的宾语,动词不定式后置。,e.g.,_,_,“,我发现画画很有趣。,I find,it,interesting,to draw pictures.,3.不定式作宾语I find it interesting,7,4.作宾语补足语,(1)一些动词后常跟动词不定式作宾语补足语,这类动词有 advise,ask,invite,order,teach,tell,want,like,wish,allow等,.,句型结构：,s.+,v.+,sb.,(not),to do,sth,e.g:He asked me,to clean up the park,.他叫我,去,打扫公园。,My father taught me,to ride a bike,last year.我爸爸去年教我骑自行车。,He asked me,not,to clean up the park,.他叫我,不去,打扫公园。,Tell the children,not to play on the road,.告诉孩子们,不要,在马路上玩。,(2),使役动词,(如make,let,have,等)及,感官动词,(如see,hear,feel,watch等)后常跟,不带to,的动词不定式作宾语补足语。,e.g.,The teacher,let,him,(not),do the homework.,老师,(,不,),让他做作业。,e.g.,I often,see,him,play basketball,on the playground after school.,解释（,不带to,的不定式就,直接,在动词原形前面,加,上,not,。）,4.作宾语补足语,8,（,3,）,作动词,help,的宾语补足语，不定式,to 可带可不带,。,e.g.Could you help me,(to)carry the bag,?你能不能帮我提包？,5.作定语,动词不定式作定语,通常放在,所修饰词,之后,。它与所修饰的词可以是主谓关系，也可以是动宾关系。说明被修饰词的特征。,e.g.Would you like something _?你想要一些吃的东西吗？,He has something important,to do,.他有重要事情要做,He gave me an interesting book,to read,.他给我一本有趣的书看,温馨提示：动词不定式与所修饰的词为动宾关系，且动词为,不及物动词,时，,后面,要,加上,相应的,介词,。,e.g.I need a pen _.“我需要一支钢笔写字。”,to eat,to write,with,（3）作动词help 的宾语补足语，不定式to 可带可不带。,9,He wants to find a chair,to sit,on,.,他想找把椅子坐。,解释：（当被修饰的词是它的,逻辑宾语,时，则不定式动词必须是,及物动词,。如果不定式动词是,不及物动词,，就要必要的,介词,，使其构成及物的短语动词。）,下列词语后常接动词不定式,作定语,。,chance,wish,time,way,the first,need,the only,the second,the last,right,promise等。,e.g.He has no time,to see the film.,他没有时间去看电影。,He wants to find a chair to si,10,6.作状语。,不定式用作状语主要表示,目的,、,结果,和,原因,，,其,逻辑主语,通常要和,句子的,主语一致,。,(1)用作,目的状语,He,went,to see his teacher,this morning.今天上午他去看望他的老师了。,(2)用作,结果状语,The police,searched the room,to find nothing,.,They were too excited,to say a word,.他们太激动了以至于说不出话来。,(3)用作,原因状语,Im sorry,to hear your mother is ill,.听到你妈妈生病了我很难过。,She cried,to hear the noise,in the next room.,6.作状语。,11,7.动词不定式的否定形式。,不定式的,否定式,是在不定式符号,to前加not,或者,never,，即构成,not to do,或,never to do。,I decided,not to ask him again,.我决定不再问他了。,He told me,not to open the door.,他让我别开门。,Take care,not to break the glass.,小心别把玻璃杯打碎了。,I promise,never to smoke again.,我保证再也不抽烟了。,【温馨提示】,不带to,的不定式就,直接,在,动词原形,前面,加,上,not,。如：,The teacher,made,us,not play computer games,in class.,老师让我们不要在课堂上玩游戏。,7.动词不定式的否定形式。,12,8.动词不定式短语可以和疑问词what，which，how，where,when等连用。,即：疑问词who,which,what,when,how,where+to do。,what to do,how to do it,e.g.,Can you tell me,what,to say,at the meeting?,I dont know,what,to do,.我不知道该做什么,8.动词不定式短语可以和疑问词what，which，how，,13,1.-Why are you going to Guilin?,-I plan _ the beautiful mountains and clean water,A.seeB.seeingC.sawD.to see,2.Its nice of you _ me with my English.,A.for helpB.to helpC.helpingD.helped,3.His mother told him _ on the street.Its dangerous.,A.to playB.not playC.to not playD.not to play,4.The little boy was _ frightened _ he couldnt say a word.,A.too;toB.enough;toC.so;thatD.such;that,5.My pen is lost.I have no pen _.,A.writeB.to write C.to write withD.to write on,Do exercise,1.-Why are you going to Guil,