As的用法小結(jié)

1、As的用法小結(jié)as可以作連詞、介詞及關(guān)系代詞和副詞?，F(xiàn)將其用法小結(jié)如下：（一）、as作連詞的用法：1作 在期間，當(dāng)-的時候引導(dǎo)時間狀語從句注意與when、while的用法區(qū)別。 下列情形時,只用as,而不用when或while。1）用于表示同一個人的兩種動作交替進(jìn)行，指一邊-一邊如：The girl sings as she goes to school.He looked beh ind occasi on ally as he went forward in the forest.2）表示兩個同步發(fā)生的動作或行為，意思是隨著-的發(fā)展如：As time went on / by, she b

2、ecame more and more beautiful .As childre n get older, they become more and more in terested in everyth ing.3）表示兩個短暫行為或事情幾乎同時發(fā)生.如:l watched her as she read the book.I thought of it just as you ope ned your mouth.Just as the flying worm hit her face, she gave a loud cry.4）接在名詞后面表示某一個年齡段時.如：As a young

3、 man, he was active in sports. when作”當(dāng)?shù)臅r候”解,可以指較短的（一點(diǎn)）時間，也可指一段時間。如 :When I was at college, I could speakseveral foreig n Ian guages. When the clock struck twelve, I had slept for 2hours. while常表示一段較長的時間或一個過程，強(qiáng)調(diào)主句謂語動詞與從句謂語動詞同時發(fā)生。如:Work while youwork. Play while you play.2. As =Since 作嘅然”、”由于”解，引導(dǎo)原因狀語

4、從句，常用來表示已為人們所知或顯而易見的原因或理由。女口: Ashe s been ill for ages, I will hel p him.As / Since youre not feeling well, you may stay at home.As he was nt ready , we went without him.3. As =in the way that作像、按照的方式解，引導(dǎo)方式狀語從句。女口:Do as I told you.Remember, you must do everyth ing as I do.4. 用于as- as或not / so/ as -

5、as中，前一個as是副詞，后一個as是連詞，引導(dǎo)比較狀語從句。 如:They helped the old as much as possible.I dont speak En glish so/ as well as she does.5. 表示雖然，盡管 等，引導(dǎo)讓步狀語從句，常用倒裝語序，模式為：adj. /adv. / n.+as + 主語 + 謂語 + 主句。女口 : Young as he is, he knows much.Tired as they were, they walked on.6. 表示也一樣。 She is a doctor, as was her husba

6、nd.（二）、as作關(guān)系代詞，引導(dǎo)定語從句，表示正如，這一點(diǎn).如：He is very careful, as we all know.As is well-k nown, Taiwa n bel ongs to China.另外，當(dāng)先行詞被the same, such等詞修飾時，常用as來引導(dǎo)定語從句。如：Such a clever girl as she can lear n anything quickly.I was readi ng the same book as he bought yesterday.（三）、as作介詞的用法.1. 表示好像。女口 :He dressed as

7、a policeman.2. 表示作為當(dāng)作。如：I found a job as a guide.3. 當(dāng)某人是某身份時。如：As a child , she was sent to abroad.4. as引導(dǎo)的介詞短語大多用作狀語，as譯為”作為”;少數(shù)情況可引起賓語補(bǔ)足語。如：As a Party member, Ill take the lead in everything.（ 狀語）She works as a model.（ 狀語）She has me as one of her best friends.（弓丨起賓語補(bǔ)足語 ）（四）、作副詞的用法1表示與等同。如：This dre

8、ss is twice as expe nsive as that o ne. 2像，如等。如：As before, he rema ined unmo ved.總之，通過以上的分析，我們對 as的詞性和用法有了比較全面的理解和把握，才能在實(shí)際的運(yùn)用 中做到心中有數(shù)，應(yīng)付裕如。一）as作副詞，表示程度，意為同樣地”在“ as., as. . ” not as., as.結(jié)構(gòu)中的第一個as是副詞，作和/與.（不）一樣”解。eg：Jack is as tall as his father .杰克和他的父親一樣高。He does nt speak En glish as/ so flue ntly

9、as you .他的英語說得不如你流利。二）as作介詞。1. 作女口，像”解。eg：They got un ited as one ma n.他們團(tuán)結(jié)得像一個人一樣。2. 作充當(dāng)，作為”解。eg：As a writer， he was famous.作為作家，他是很有名的。三）as作連詞，常用來連接主句和狀語從句。1. 引導(dǎo)時間狀語從句，作當(dāng).的時候”解，有 隨著.”之意，與while意義相近，強(qiáng)調(diào)兩個動作同時發(fā)生；或某事一發(fā)生，另一事立即發(fā)生。eg：He shouted aloud as her ran alo ng.他一邊往前跑，一邊高聲地呼喊。I was startled as he o

10、pened the door.他一開門，我嚇了一跳。as作連詞，相當(dāng)于 when。eg;As a little boy （When he was a little boy）he began to lear n to play pia no .他小時候就開始學(xué)彈鋼琴。2. 引導(dǎo)原因狀語從句，作因?yàn)?，由于解，與because的用法相近。eg;I must stop writing now ，as I have rather a lot of work to do .我必須停筆了，因?yàn)槲疫€有許多工作要做。3. 引導(dǎo)方式狀語從句或比較狀語從句，作正如，（如）像”解。例eg：As in your cou

11、ntry ，we grow wheat in the north and rice in the south .正如（像）你們國家一樣，我們在北方種小麥，在南方種大米。（方式狀語從句）When at Rome，do as Roma ns do.入鄉(xiāng)隨俗。（方式狀語從句）4. 引導(dǎo)讓步狀語從句，作雖然，盡管”解。這時從句常用倒裝語序，即把從句中的表語、狀語或動詞原形放在as之前。eg;Strange as it may seem， it is true .盡管這事看上去很奇怪，但卻是真的。Try as he might，Tom could not get out of the difficult

12、ies .不管怎樣努力，湯姆還是擺脫不了困境。四）as作關(guān)系代詞。1 .弓I導(dǎo)限制性定語從句，用在“ such., as ” , the sameas ” “ as. as 等結(jié)構(gòu)中，常譯作像.一樣的人（或物）”凡是.的人（或物）”例eg：He wished to be such a man as Lei Fe ng was .他曾希望做一個像雷鋒那樣的人。My hometow n is no Ion ger the same as it was .我的家鄉(xiāng)再也不像過去一樣了。2. 引導(dǎo)非限制性定語從句，用來指代它前面的整個句子（即先行句），意思是 這一點(diǎn)”。這個分句可以位于句首、句中或句末。

13、eg：As is well known，oceans cover more than 70% of the earth .我們知道，海洋占地球面積的百分之七十以上。五）含as的固定詞組的用法1. as soon as作 一就解，引導(dǎo)時間狀語從句。eg：As soon as I get to Beijing , Ill write to you .我一到北京，就給你寫信。2. as/so long as作 只要解，eg;As /So long as you study hard , youll make progress .只要你努力，你就會取得進(jìn)步。3. as if/though常用來引導(dǎo)方式

14、狀語從句，作好像，仿佛”解。如果從句中講的是非真實(shí)情況，則用虛擬語氣。eg：She loves the child as if /though he were her own .她愛這個孩子如同愛自己的孩子。As if / though也可用來引導(dǎo)表語從句，常用在 It appea/looks / seems. +as if / though句型結(jié)構(gòu)中。eg;It appears as if/though it is going to clear up .看起來天要晴了。It seems as if/ though he knew nothing about it.他好像對此事一無所知。4.

15、as to作 關(guān)于，至于 ”解。eg;There is no doubt as to his hon esty .他的誠實(shí)是無可置疑的。5. as much/many as作 多達(dá).句 達(dá)到.之多解。eg：He can earn as much as 5000 dollars a month.他每月能掙 5000 美元。6. so/as far as I know作 就我所知解，在句中作插入語。eg：As/So far as I know , he will come here next Monday .據(jù)我所知，他將于下星期一到這里來。7. as a result, as a result

16、of表示 由于. 的結(jié)果 句 eg:She died as a direct result of the accide nt .她的死是那次事故的直接結(jié)果。8. as well為也，還之意。eg：Come early , and bring your brother as well .早點(diǎn)來，把你的弟弟也帶來。9. so as to, so. as to若跟動詞原形，表示目的或結(jié)果。eg：He studied hard so as to pass the exam.他努力學(xué)習(xí)以便通過考試。（表示目的）as用法小結(jié)一）as作副詞，表示程度，意為同樣地句 在“ as. . as.句not as.

17、as.結(jié)構(gòu)中的第一個as是副詞，作和/與.（不）一樣”解。eg：Jack is as tall as his father .杰克和他的父親一樣高。He does nt speak En glish as/ so flue ntly as you .他的英語說得不如你流利。二）as作介詞。1 .作 “口，像”解。eg：They got united as one man .他們團(tuán)結(jié)得像一個人一樣。2. 作充當(dāng)，作為”解。eg：As a writer, he was famous.作為作家，他是很有名的。三）as作連詞，常用來連接主句和狀語從句。1. 引導(dǎo)時間狀語從句，作當(dāng).的時候 句軍，有 隨

18、著.”之意，與while意義相近，強(qiáng)調(diào)兩個動作同時發(fā)生；或某事一發(fā)生，另一事立即發(fā)生。eg：He shouted aloud as her ran alo ng.他一邊往前跑，一邊高聲地呼喊。I was startled as he opened the door.他一開門，我嚇了一跳。as作連詞，相當(dāng)于 when。eg;As a little boy （When he was a little boy）he began to lear n to play pia no .他小時候就開始學(xué)彈鋼琴。2. 引導(dǎo)原因狀語從句，作因?yàn)椋捎诮?，與because的用法相近。eg;I must stop

19、writing now , as I have rather a lot of work to do .我必須停筆了，因?yàn)槲疫€有許多工作要做。3. 引導(dǎo)方式狀語從句或比較狀語從句，作正如，（如）像句軍。例eg：As in your country , we grow wheat in the north and rice in the south .正如（像）你們國家一樣，我們在北方種小麥，在南方種大米。（方式狀語從句）When at Rome , do as Roma ns do.入鄉(xiāng)隨俗。（方式狀語從句）4引導(dǎo)讓步狀語從句，作雖然，盡管”解。這時從句常用倒裝語序，即把從句中的表語、狀語或動

20、詞原形放在as之前。eg;Strange as it may seem， it is true .盡管這事看上去很奇怪，但卻是真的。Try as he might, Tom could not get out of the difficulties .不管怎樣努力，湯姆還是擺脫不了困境。四）as作關(guān)系代詞。1 .弓I導(dǎo)限制性定語從句，用在“ such., as ”，“ the sameas ” “ as. as 等結(jié)構(gòu)中，常譯作 橡.一樣的人（或物）”凡是.的人（或物）”例eg：He wished to be such a man as Lei Fe ng was .他曾希望做一個像雷鋒那樣的

21、人。My hometow n is no Ion ger the same as it was .我的家鄉(xiāng)再也不像過去一樣了。2.引導(dǎo)非限制性定語從句，用來指代它前面的整個句子（即先行句），意思是 這一點(diǎn)”。這個分句可以位于句首、句中或句末。eg：As is well known , oceans cover more than 70% of the earth .我們知道，海洋占地球面積的百分之七十以上。五）含as的固定詞組的用法1. as soon as作 一就解，引導(dǎo)時間狀語從句。eg：As soon as I get to Beijing , Ill write to you .我一到

22、北京，就給你寫信。2. as/so long as 作 只要解，eg;As /So long as you study hard , youll make progress .只要你努力，你就會取得進(jìn)步。3. as if/though常用來引導(dǎo)方式狀語從句，作好像，仿佛”解。如果從句中講的是非真實(shí)情況，則用虛擬語氣。eg：She loves the child as if /though he were her own .她愛這個孩子如同愛自己的孩子。As if / though也可用來引導(dǎo)表語從句，常用在 It appea/looks / seems. +as if / though句型結(jié)構(gòu)

23、中。eg;It appears as if/though it is going to clear up .看起來天要晴了。It seems as if/ though he knew nothing about it.他好像對此事一無所知。4. as to作 關(guān)于，至于 ”解。eg;There is no doubt as to his hon esty .他的誠實(shí)是無可置疑的。5. as much/many as作 多達(dá).句 達(dá)到.之多解。eg：He can earn as much as 5000 dollars a month.他每月能掙 5000 美元。6. so/as far as

24、 I know作 就我所知解，在句中作插入語。eg：As/So far as I know , he will come here next Monday .據(jù)我所知，他將于下星期一到這里來。7. as a result, as a result of表示 由于. 的結(jié)果 句 eg:She died as a direct result of the accide nt .她的死是那次事故的直接結(jié)果。8. as well為也，還之意。eg：Come early , and bring your brother as well .早點(diǎn)來，把你的弟弟也帶來。9. so as to, so. as

25、to若跟動詞原形，表示目的或結(jié)果。eg：He studied hard so as to pass the exam.他努力學(xué)習(xí)以便通過考試。（表示目的）as.as的用法as.as意為”和一樣，表示同級的比較。使用時要注意第一個as為副詞，第二個as為連詞。其基本結(jié)構(gòu)為：as+ adj./ adv. +as。例如：（1）This film is as interesting as that one.這部電影和那部電影一樣有趣。（2）Your pen writes as smoothly as mine.你的鋼筆書寫起來和我的一樣流暢。其否定式為 not as/so +adj./ adv. +a

26、s。例如：This dictionary is not as/so useful as you think.這本字典不如你想象的那樣有用。若有修飾成分，如 twice, three times, half, a quarter等，則須置于第一個 as之前。例如：Your bag is twice as expe nsive as mine.你的袋子比我的貴一倍。幾個關(guān)于as.as的常見句型：（1） as.as possiblePlease an swer my questio n as soon as possible 請盡快回答我的問題。(2) as.as usual/beforeShe l

27、ooks as pretty as before.她看起來和以前一樣漂亮。as long as.(引導(dǎo)條件狀語從句)It took us as long as three years to carry out the plan.我們花了長達(dá)三年的時間才完成這項(xiàng)計劃。(4) as far asHe walked as far as the railway station yesterday evening.昨天傍晚，他一直散步至U火車站。(5) as well asShe cooks as well as her mother does.她燒菜燒得跟她母親一樣好。一些帶有as.as結(jié)構(gòu)的常見短語

28、歸納：as busy as a bee像蜜蜂一樣忙碌as easy as ABC 像 ABC 樣容易as deep as a well 像井一樣深as light as a feather 像羽毛一樣輕as soft as butter像黃油一樣軟as rich as a Jew像猶太人一樣富裕解題過程as +形容詞或副詞原級+ as1) 在否定句或疑問句中可用so asHe cannot run so/as fast as you.2) 當(dāng)as as中間有名詞時采用以下格式。as +形容詞+ a +單數(shù)名詞as + many/much + 名詞This is as good an examp

29、le as the other is.I can carry as much paper as you can.3) 用表示倍數(shù)的詞或其他程度副詞做修飾語時，放在as的前面。This room is twice as big as that one.Your room is the same size as mine.4) 倍數(shù) + as + adj. + as 倍數(shù) + then + ofThis bridge is three times as long as that one.This bridge is three times the len gth of that one.Your

30、room is twice as large as mine.Your room is twice the size of mine.+ for。necessary+for 還是 to?一般情況下是+ to,若是表示“對某人有必要的、是必須的”之意，即necessary后面直接跟人稱代詞,看一些例句就知道了：1) Sleep is necessary to health.睡眠對健康是必要的。2) Sometimes it is not n ecessary to go in side in order to buy the hamburgers.有時候要買漢堡包不需要進(jìn)入這些餐館。3) It

31、is necessary for older people to understand what they think and feel.年長的人有必要了解年青人在想些什么，他們有什么感覺。It s +adj.+of+sb.+to do ”和It s+adj.+for+sb.+to do ”區(qū)別It is+adj.+of sb. +to do sth中的 adj.跟 sb.有關(guān),這個adj.是用來形容sb.的，表示某人這么做真是太adj. 了.你會發(fā)現(xiàn)在這個句型中你把sb.和adj.提出來可以造個句sb. is（are） adj.女口 Its very kind of you to help

32、me.把里面的sb.和adj.提出來可以發(fā)現(xiàn) you are kind是說得通的.而It is +adj.+for sb.+to do sth表示做某事對某人來說很adj.這里的adj.是do sth.的屬性里面的sb.跟adj.沒有直接聯(lián)系了吧中adj是針對事件，修飾 sb 中adj是針對sb,修飾事件 友好、可恨、善良等。容易、重要、關(guān)鍵女口 Its difficult for you to deal with the problem. 你就不能說 you are difficult Its adj of sb to do sth Its adj for sb to do sth 用of常

33、用于描述人的性質(zhì) 用for常用于描述事情的性質(zhì) 例如：It ” s very nice (kind, friendly) of you to help me carry the baggage.你真友好，幫我搬了行李。It ” s very important for you to solve the problems. 解答出那些難題對于你來說非常主要。by的意思（例句）prep.preposition 宀介詞1. 被，由The homework was assig ned by the teacher.這些家庭作業(yè)是老師布置的。2. 靠,用,通過They crossed the river

34、 by ferry.他們乘渡船過了河。3. 經(jīng)由；沿Elle n flew to Chicago by way of Minn eapolis.艾倫經(jīng)由明尼阿波利斯飛往芝加哥。4. 在.旁邊,靠近;在.手邊I have nt got any money by me.我身邊沒有帶錢。5. 不遲于；在.之前We had to get there by evening.我們必須在夜晚前抵達(dá)那里。6. 根據(jù)，按照How do you know he did nt act by the rules?你怎么知道他沒有按規(guī)定行事？7. （表程度）相差He missed the bus by three mi

35、nu tes.他晚了三分鐘沒趕上那班公車。8. 憑，對.（發(fā)誓）I swear by God!我對上帝發(fā)誓！9. （乘除法上）以，用（乘或除）Ni ne divided by three makes three.九除以三得三。10. 以計，按Youll be paid by the hour.你的工資將按時計酬。11. 在的時候He had to sleep by day and work by ni ght.他只好白天睡覺，晚上工作。12. 就來說，關(guān)于Philip is a doctor by professi on.菲利浦的職業(yè)是醫(yī)生。13. （表連續(xù)或反復(fù)）逐個；逐批The teach

36、er expla ined the text sentence by sentence.教師逐句講解了這篇課文。14. 由于She took my umbrella by mistake.她誤拿了我的傘。adv.adverb宀副詞1. 經(jīng)過；過去A truck went by.一輛卡車開過。2. 在旁邊When I filled out the form she was standing by all the time. 我填寫表格時，她一直站在我身旁。3. （放）在一邊They put money by for later use.他們儲存錢以備將來使用。4. 【美國口語】至U （或進(jìn)入）某

37、人的家Please come by and have dinner with us.請到我家來一起吃晚飯。些詞組：day by day little by littleone by one piece by pieceside by side step by stepby day （ni ght） by handby letter by mistakeby pla ne by postcome by bicycle go by airgo by boat go by trainknow by n ame know by sightsend .by wireless send . by elec

38、tricity（all） by on eself by the wayby cha nee by means ofby no means by this meansby way of by and byby and large close bypass byas well 與as well as的用法區(qū)別as well 與as well as 的用法區(qū)別as well與as well as只有一詞之差，但意義和用法卻相差甚遠(yuǎn)。一、as well 用法：1、 as well常用作狀語，作又；也”解，相當(dāng)于too或also，常位于句末，無須用逗號與句子分開。如：I am going to Lond

39、on and my sister is going as well(= going , too ).我要到倫敦去，我妹妹也要去。I not only play the guitar, I sing as well (= I also sing ).我不但彈吉他，而且還演唱。2、as well 在口語中也可用于句中，作“也好，也行”或“倒不如”解，用來緩和語氣。如：You may as well go 、你去也好。The weather was so bad that we might(just ) as well have stayed at home.天氣太壞了，早知道如此，倒不如呆在家里為

40、好。3、 as well可以直接用于just后，用作應(yīng)答語(可視為Its just as well 、的省略)，作幸虧，幸而；無妨；沒關(guān)系”解。如：We were too late to see the film.我們?nèi)サ锰砹?，沒有看上電影。Just as well 、I hear it isnt very good.不必遺憾，我聽說電影也不怎么樣。二、as well as 用法1、 as well as常用來連接兩個并列的成分，作“也，還”解。它強(qiáng)調(diào)的是前一項(xiàng)，后一項(xiàng)只是順便提及。因此連接并列主語時，謂語動詞與前一項(xiàng)一致；而用n ot o nly .but also.連接時，謂語動詞與后一

41、項(xiàng)一致。如：Your wife as well as you is frie ndly to me.不僅你而且你的妻子也對我很友好。(= Not only you but also your wife is frien dly to me、)Electric en ergy can be cha nged into light en ergy as well as into sound en ergy.電能既可以被轉(zhuǎn)變成聲能，又可以被轉(zhuǎn)變成光能。2、 as well as用來表示同級比較，指“一樣好”。如：You look as well as you did ten years ago.你的

42、身體看起來還和十年前一樣好。He plays the guitar as well as you.他的吉他彈得和你一樣好。驗(yàn)收臺：上面講了 as well與as well as的用法，你是否掌握了？ 一起來做一下下面的單項(xiàng)填空題。1、They play all kinds of instruments and sing.A also B、either C 、as well D 、as well as2、 Tom Jane and Rose , going to the farm on foot.A、as long as ; is B、as well as ; areC、as long as ；

43、 are D、as well as ； is3、They travel at full speed by day.A、and night B 、and by night as well asC、as well at night D 、as well as by night4、Mrs Black writes, if not better than , her husband.A、as well as B 、so wellC、so well as D 、as well5、We expect her to do the housework as wellafter the children.A、a

44、s look B 、as looking C 、and look D、looking6、 She does nt speakher friend, but her writte n work is excelle nt.A、as well as B 、as often as C 、so much D、as good as7、Which of the following sentences is right?A、Both father and as well as mother love me.B、Father as well as mother loves me.C、Both father a

45、s well as mother loves me.D、Not only father but also mother love me.8、You feelyou did yesterday , dont you ?A、as good as B 、as well C 、so good D、as well as9、rm sure I was right 、 It is justI did nt lend him the mon ey.A、so well B 、 as well as C 、 as well D 、the same asKey: 1 5 C D D A A 6 9 A B D C四

46、級語法備戰(zhàn)-as的用法大全as可以作連詞、介詞及關(guān)系代詞?，F(xiàn)將其用法小結(jié)如下一、as作連詞的用法：1作當(dāng)?shù)臅r候,引導(dǎo)時間狀語從句。注意與 when、 while的用法區(qū)別when作當(dāng)?shù)臅r候”解,可以指較短的（一點(diǎn)）時間，也可指一段時間。如：When he was at college, he could speak several foreig n Ian guages.When the clock struck twelve, all the lights in the street went out.while常表示一段較長的時間或一個過程，強(qiáng)調(diào)主句謂語動詞與從句謂語動詞同時發(fā)生。如：Work while you work. Play while you play. 但屬下列情形時，只用as,而不用when或while。A）用于表示同一個人的兩種動作交替進(jìn)行，指一邊，一邊。如：The girl dan ces as she sings on the stage.He looked beh