as的用法归纳ppt课件.ppt

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,*,as,用法归纳,1,as,conj.,adv.,pron.,prep.,固定用法,引导定语从,句,引导,时间,状语从句,引导,原因,状语从,句,引导,让步,状语从,句,引导,方式,状语从,句,引导,比较,状语从句,PRACTICE,2,一、作副词,“,相同地”，“同样地”。,They dont have as many airplanes.,他们没有同样多的飞机。,As before he remained unmoved.,他和以往一样无动于衷,.,The“h”is silent as in“hour”.,在,hour,这个词中,h,不发音,.,3,区别,连词,时间,与,主句谓语,动作,只用,as,when,点、段,先于,、,同时发生,while,段、过程,过程中,、,同时发生,as,当,的时候,同时进行,同一个人的两种动作交替进行,“,一边,一边,”,。,两个同步发展的动作或为,“,随着,”,表示两个短促行为或事件,几乎同时发生。,1.,引导时间状语从句,4,John was having his dinner when I saw him.,当我看到约翰的时候，他正在吃饭。,She can write only when the baby is asleep.,只有婴儿睡着的时候，她才能写作。,We must strike while the iron,is hot,.,趁热打铁。,While we,were reading,the teacher came in.,我们正在读书的时候，老师走了进来。,The,girl,dances,as,she,sings,on,the,stage.,那个女孩在舞台边唱歌边跳舞。,5,He,looked,behind,from,time,to,time,as,he,went,forward.,当他朝前走时，不时地向后看。,As,time,went,on,/,by,she,became,more,and,more,worried.,随着时间的流逝，她变得越来越焦虑。,As he grew older,he became more intelligent.,随着他年龄的增长，他变得更有才智了。,I,thought,of,it,just,as,you,opened,your,mouth.,恰好在你开口时，我想到了它。,Just,as,the,flying,worm,hit,her,face,she,gave,a,loud,cry.,恰巧在飞虫撞到她脸上时，她大哭起来。,6,2.,引导原因状语从句,because,语气最强,用于,回答,why,提出的或,人们不知道,的问题；,as,，,一般放句首,，语气弱，口语化，说明,比较明显,的原因；,since,书面语中，表,对方已知的、或稍加分析便可得知的原因,，有时译作,“,既然,”,。,for,表,附加的解释、说明或推理,。不放句首,I do it because I like it.,He didn,t go to school because he was ill.,Since many of the customers work during the day,Billy has to collect the money at night.,As he is a League memberhe takes the lead in everything in his class.,As she has been ill perhaps she,ll need some help.,It must have rained last night,for the ground is wet.,7,3.,引导让步状语从句,“,虽然，尽管,”,，,although,语气稍正式些，可放在句首，句中，不能再用,but,，但可以用,yet,；,as,所表示的语气较强，引导的让步状语从句用倒装语序；,however,引导让步状语从句时，,后面可跟形容词或副词,，也要用,倒装,语序。,Although they are poor they are happy.,Angry,as he was,he managed to speak calmly.,However hard,the question is,he can answer it.,注意：,当,as,引导让步状语从句时，句子的倒装语序有以下三种形式：,(1).,形容词或副词,+as+,主语,+,连系动词,be,或实义动词,。例如：,Rich as he is,he never spends a cent on clothes.,Much as I admire his courage,I don,t think he acted wisely.,(2).,名词,+as+,主语,+,连系动词,be,(,注意句首的,名词不带冠词,),。,Child as he is,he knows a lot.,Boy as he was,he was chosen king.,。,(3).,实义动词,+as+,主语,+,助动词,Try as he may,he never succeeds.,Change your mind as you will,you will gain no additional support.,8,4.,引导方式状语从句，,“,如,”,，,“,像,”,，,“,按照,的方式,I want you to tell my friend your very interesting experience exactly as you have told it to me.,我想让你像给我讲述的那样，给我的朋友讲一讲你那段极其有趣的经历。,Remember,you,must,do,everything,as,I,do.,记住，你必须按照我做的那样做一切。,注意：,like,在非正式语体中可以有与,as,相同的用法,.,I can,t sing like I used to.,我不能像以前那样唱歌了。,He writes just like his brother did when he was young他现在写文章正像他哥哥年轻时写文章一样。,9,5.,引导比较状语从句,用于,“,as.as.,或,not,so/,as.as.,”,中,前一个,as,是副词,后一个,as,是连词，,“,如,(,不如,),一样,”,。,(1).You hate her as much as I(=as I hate her),你恨她像我恨她一样深。,(2).I,dont,speak,English,so/,as,well,as,he,does.,注意：句中连词,as,后面的代词实际是省略了与主句相同的部分，,At your age you can,t expect to play football as well as me(=as I do).,You hate her as much as you hate me.,你恨她像恨我一样深,.,10,三、作代词,(1).,用于,the same.as,结构中,(2).,用于,such.as,结构中,(3).,用于,“,so+adj.+a/an+n.(,单数,)+as,”,This is the same watch as I have lost.,这块手表跟我丢失的那块一样。,I don,t like such novels as you recommend.,我不喜欢你推荐的那些小说。,I am not so strong a man as I was.,我已经没有从前那么强壮了,。,11,2.as,单独引导定语从句,as,单独引导定语从句时，,先行词,可以是一个,词,，也可以是一个,句子,或,短语,。,She is late,as is often the case.,她迟到了，这是经常的事。,(,先行词是整个主句,),To shut your eyes to facts,as many of you do,is foolish.,对事实视而不见,-,你们好多人都是如此的愚蠢。,(,先行词是不定式短语,),As has been said above,grammar is not a set of dead rules.,正如前面所说，语法不是一套死条文。,12,Spiders are not insects,as many people think.=,Spiders are not insects,.,But many people think they are.,许多人认为蜘蛛是昆虫，但蜘蛛并不是昆虫。,She did not,as her friend had feared,open the case.=,She did not open the case.But many people had feared she did.,她没有打开盒子，而她的朋友就是怕她当面打开盒子。,Greenland was not a continent,as people thought.=,Green was not a continent.But people thought it was.,格陵兰并不像人们所想象的那样是一个大陆。,I live a long way from work,as(which)you know.,我住得离工作单位很远，这你是知道的。,As you will find out,I will never let you down.,你将会发现，我绝不会使你失望的。,Taiwan is,as you know,an inseparable part of China.,你们知道，台湾是中国不可分割的一部分。,13,四、作介词，,1.,表示,“,好像,(,某人,),”,2.,表示,“,作为，当作,”,，,3.,表示,“,当某人是,(,某身份,),时。,4.,表示,“,因某人是,(,某身份,),”,，,14,They entered the building disguised as cleaners.,他们化装成清洁工人的模样进入大楼。,I found a job as a teacher.,我找了一份教师的工作,As a child,she was sent to three different countries.,她儿时去过三个不同的国家。,As her private secretary he has access to all her correspondence.,他是她的私人秘书，能接触到她所有的信件。,15,as,引导的介词短语大多用,作状语,，,as,译为,“,作为,”,，,As a Party member,Ill take the lead in everything.(,状语,),She works as a nurse.(,状语,),Tom has me as one of his best friends.(,引起宾语补足语,),as “,以实际的身份或地位,”。,like“,与,相似，以与,相类似的方式,”。,He spoke,as a teacher,.,他作为老师发言,./,他以老师的身份发言,.,He spoke,like a teacher,.,他讲话很像是老师”。,16,五、用于一些固定搭配,1.,asgood as,差不多，几乎,2.such,as,suchas,像,这样的,3.such as,例如,4.,asfor=with regard to sb/sth.,至于某人（某事物）,5.asto=as regards sth.,至于某事物；提到某事物,6.soasto,以便,为了,7.as a matter of fact,事实上，其实,8.as a result,作为结果,9.as a result of,由于,/,作为,的结果,10.as a rule,通常；一般说来,11.as a whole,总体上,17,as far as ,那么远，直到；达到,程度；,as far as I know/can see,就我所知,/,依我看,so/as far as sb/sth.is concerned,就,sb/sth.,而言,as follows,如下,as if/though,好象，仿佛,as long as,达,之外，长达,as long as,只要,as much as,尽,那样多；差不多,as soon as,一,就,as soon as possible,尽快,as usual,像往常一样，照例as well,也，同样，不妨,(,句尾）,as well as (,除,之外,),也，既,又,as.as.,象，如同，与,一样,as many as,as much as,18,think of as,treatas,look on/upon.as,consideras,work as,act as,be well-known as,19,Hebehaved as if nothing had happened.,他装着若无其事的样子。,She treats him as though he were her own son.,她待他好像待自己的儿子一样。,as if,可以接一个动词不定式短语,He waved his hand to me,as if to have,something to tell me.,他向我挥手好像有什么要告诉我。,Dont worry,the matters as good as settled.,别担心，问题差不多已经解决了。,When the car was repaired,it looked as good as new.,这辆汽车修理好的时候，看起来差不多就像新的一样。,20,Joan can speak,Chinese as well as English,.,琼能讲英语还能讲汉语。,He spent all his money,as well as wasting his time.,他不仅浪费了时间，还花光了他所有的钱。,Iboughtalotoffruits,suchas,apples,oranges,bananasandsoon.,我买了许多种水果，像苹果，桔子，香蕉等。,We had,such books as you never saw,.,我们有一些你从未看过的书。,We had a delightful weekend in the country.,As for the traffic,we had no difficulty.,在乡下我们度过了一个愉快的周末。至于交通，我们没遇到任何困难。,I dont know anything,as to the others,.,至于其他，我一无所知。,21,Students should take notes,so as to,make revision easier.,学生应当记笔记，以便容易复习。,Asamatteroffact,Imveryfondofhousework.,其实，我很喜欢做家务。,Asaresult,，,hehadbeengivenan,excellentjob.,结果，他得到了一份极好的工作。,You may borrow this book,as long as,you promise to give it back.,只要你答应归还，你就可以把这书借走。,22,Translate the following sentences:,1.Tom runs fast,but I run just as fast.,2.She doesnt sing so well as her sister.,3.I have changed it as you suggested.,4.We all like her as she is very kind.,5.He raised his voice so as to be heard.,6.Tired as they were,they walked on.,7.I never heard such stories as he told.,8.He is careful,as his work shows.,9.He works as a teacher.,10.As you sow,so will you reap.,23,She was well-known as an excellent dancer.,Tom is as tall as Jim.,My handwriting is not as/so good as yours.,To make much progress like him we must study as hard.,As he was tired,he went to bed early.,The students did as their teacher told them.,She stood at the door as if she were waiting for someone.,The horse is getting old and can not run as fast as it did.,Nothing is so difficult as this.,Please come here as soon as possible.,As for me,I have nothing to complain ofI remember the whole thing,as if it happened yesterday.,24,This pencil is half as long as that one.,He is twice as old as I.,I read the letter as I walked along the river.,He talked to me like my father.,My hometown is not the same as it was.,Do it as I do.,Do just as I told you to.,As he was reading,he was listening.,I work as others do.,As he wasnt reading in time,we went without him.,As far as Im concerned,you can do whatever you like.,The prairies stretch on all sides as far as the eye can see.,The rise in interest rates will be disastrous as far as small firms are concerned.,25,He dressed as a policeman.,She found a job as a packer.,Im speaking you as your employer.,Treat me as a friend.,They accept him as an equal.,I respect him as a writer and as a man.,As her private secretary he has access to all her correspondence.,As a child she was sent to three different schools.,I havent known him as long as you.,He looks as ill as he sounded on the phone.,His eyes arent quite as blue as they look in the film.,He recited as much of the poem as he could remember.,As he grew older,he lost interest in everything except gardening.,26,Why didnt you catch that bus as I told you to?,Shes unusually tall,as are both her parents.,Hes a doctor,as was his wife before she had children.,As for the hotel,it was very uncomfortable and miles from the sea.,As for you,you ought to be ashamed of doing such things.,As if unsure of where she was,she hesitated and looked around.,He rubbed his eyes and yawned as though waking up after a long sleep.,As to correcting our homework,the teacher always makes us do it ourselves.,Theres no special rules as regards what clothes you should wear.,27,I watched her as she combed her hair.,As you werent there,I left a message.,Young as I am,I already know what career I want to follow.,Talented as he is,he is not yet ready to turn professional.,Much as I like you,I couldnt live with you.,Try as he might,he couldnt open the door.,Do as I say and sit down.,Leave the table as it is.,28,Strange as it seems,it is so.,Surrounded as she was by crowds of fans,the movie star managed to get into the car.,Student as she is,she has earned a lot of money.,Child as he is,he can answer such difficult questions.,29,尽管这辆车很便宜，我还是买不起。,即便他能来，他也无法帮你解决问题。,尽管他跑得很快，他还是被别人拉到了后面。,尽管这种动物看起来很可爱，但还是很危险。,虽然被妈妈揍，他并不恨她。,尽管我很喜欢你，我还是不能嫁给你。,30,He was seen using a check as a bookmark.,Clever as she is,she doesnt study well.,Much as I hate him,Ill not kill him.,Try as she might,Mary cant find a job.,It is important for you as well as for me.,You may borrow this book as long as you keep it clean.,John,as you know,is a writer.,He is not such a fool as he looks.,As I entered,he looked at me kindly without scolding.,As Antonio did not have any money just then,he went to Shylock.,Lets take the front seats so that we may see more clearly.,He didnt plan his time well,so that he didnt finish the work in time.,As long as we dont lose heart,well find a way to overcome the difficulty.,31,1.She had a tense expression on her face,_she were expecting trouble.,A.even though B.even as C.as though D.now that,2.A good many proposals were raised by the delegates,_was to be expected.,A.that B.what C.so D.as,3._might be expected,the response to the question was very mixed.,A.As B.That CIt D.What,4.Americans eat _as they actually need every day.,A.twice as much protein B.twice protein as much,C.twice protein as much D.protein as twice much,OK,OK,OK,OK,32,5.The trumpet player was certainly loud.But I wasnt bothered by his loudness _by his lack of talent.,A.than B.more than C.as D.so much as,6.Studies show that the things that contribute most to a sense of happiness cannot be bought,_a good family life,friendship and work satisfaction.,A.as for B.in view of C.in case of D.such as,7._he works hard,I dont mind when he finishes the experiment.,A.As soon as B.So far as C.As well as D.As long as,8._the danger from enemy action,people had to cope with a severe shortage of food,clothing,fuel and almost everything.,A.As long as B.As far as C.As soon as D.As well as,OK,OK,OK,OK,33,1.It is generally believed that teaching is _it is a science.,A.an art much as B.much an art as,C.as an art much as D.as much an art as,2.She doesnt speak _her friend,but her written work is excellent.,A.as well as B.so often as C.so much as D.as good as,3.The piano in the other shop will be _,but _.,A.cheaper;not as better B.more cheap;not as better,C.cheaper;not as good D.more cheap;not as good,4.After supper she would sit down by the fire,sometimes for _an hour,thinking of her young and happy days.,A.as long as B.as soon as C.as much as D.as many as,5.With the help of the German experts,the factory produced _ cars in 1993 as the year before.,A.as twice many B.as many as twice,C.as twice as many D.twice as many,34,6.After the new technique was introduced,the factory produced_ tractors in 1988 as the year before.,A.as twice many B.as many twice,C.twice as many D.twice many as,7._,he doesnt study well.,A.As he is clever B.He is as clever,C.Clever as he is D.As clever he is,8._,he was unable to make much progress.,A.Hard as he try B.Hard as he tried,C.As he tried hard D.He tried hard,9.Tom kept quiet about the accident _ lose his job.,A.so not as to B.so as not to,C.so as to not D.not so as to,10.When a pencil is partly in a glass of water,it looks as if it _.,A.breaks B.has broken,C.were broken D.had been broken,35,11._ is known to everybody,the moon travels round the earth once every month.,A.It B.As C.That D.What,12._ is known to all,China will be an _ and powerful country in 20 or 30 years time.,A.That;advancing B.This;advanced,C.As;advanced D.It;advancing,13.He doesnt believe _things _ you do.,A.the same;as B.the same;with,C.as same;as D.as same;with,14._ is mentioned above,the number of the students in senior high schools is increasing.,A.Which B.As C.That D.It,36,