例析历年高考试题归结as难点用法

1、例析历年高考试题 归结as难点用法河南 谢奎金来源：2009 年上半年试题与研究单词as词形简单，但用法复杂，可作副词、替代词、关系代词、从属连词和介词。还可与其他词汇结合构成诸多搭配，故as一直是高考热点，也是广大考生复习备考的难点。现结合考题，剖析难点，以飨读者。一、用作介词，as与like用法区别例1 Lets learn to use the problem we are facing _ a stepping-stone to future success.( NMET 2008全国卷)A. to B. for C. as D. by解析 C。as作介词表“作为”，常接在treat/

2、regard/recognize/use等动词之后；而like表“像一样”。试比较：(1)He is a child, and must be treated as such.他年幼，应该当孩子对待。(2)He acted like a child, while he had grown up.他虽已成人，但做事却像孩子一样。二、用作从属连词1表时间，as/when/while用法区别例2 Mother was worried because little Alice was ill, especially _ Father was away in France. (NMET 1994全国卷)

3、 A. as B. that C. during D. if解析 A。主从句动作先后发生常用when；两个较长动作同时发生用while；特别强调主从句动作同时发生用as，译作“一边一边”， as还可表“随着”。另when, while还可用作并列连词。when表at that time，而while表“两相对照”。2表原因，as/because/since/for用法区别例3 Jenny was very sad over the loss of the photos she had shot at Canada, _ this was a memory she especially trea

4、sured. (NMET 2006广东卷)A. as B. if C. when D. where解析A。as 作从属连词引导原因状语从句。as和because, since, for的区别是：because语势最强，用来说明人所未知的原因，回答why提出的问题，可置于强调句中且其前可加修饰语； since是双方都知晓原因或经过分析而得之的原因，语气次之；for是并列连词，前用逗号隔开，表逻辑推理或补充说明；as语气最弱，原因是显而易见的或已为人们所知，即已知原因，所引导的分句可置于句首。3表转折，引导让步状语从句例4 _, he talks a lot about his favorite

5、singers after class. (NMET 2005重庆卷）A. A quiet student as he may be B. Quiet student as he may beC. Be a quiet student as he may D. Quiet as he may be a student解析 B。as 引导让步状语从句时，形容词、副词、动词等常置前；若表语为名词，前置时使用零冠词；从句谓语动词常和助动词或情态动词may, might, will, would等连用。4表正如，引导方式状语从句例5 Who should be responsible for the

6、accident?The boss, not the workers. They just carried out the order _. (NMET 2008福建卷)A. as told B. as are told C. as telling D. as they told解析A。as引导方式状语从句，表按照、正如；非限定分句“从属连词+-ed/-ing形式” 可以看作是一种省略，即省略了主语和be动词。究竟使用何种非谓语动词形式取决于主被动关系。又如：(1) As I explained on the phone, your request will be considered at

7、the next meeting.（NMET 2005浙江卷）(2)Doctors have said that as many as 40 percent of patients dont take medicine as directed.三、用作关系代词，指代整个句子，as/which/it用法区别例6 The Beatles, _ many of you are old enough to remember, came from Liverpool. (NMET 2006天津卷)A. what B. that C. how D. as解析 D。as作关系代词，在非限制性定语从句中，可指

8、代整个句子内容，置于句首，而which不可；it为代词，用作句子成分，但不用来连接句子，故常和并列连词连用；在限制性定语从句中常与such, the same连用，试比较：(1)I havent many toys but I will send you such as I have.我的玩具并不多。不过，我会把我仅有的一点玩具送给你。(2)The book is not such that I can advise you to read it.这本书并不怎么样，我没法向你推介。四、用作从句性替代词，等同于so例7 My room gets very cold at night._. (NM

9、ET 2007江苏卷)A. So is mine B. So mine is C. So does mine D. So mine does解析C。从题干中动词gets得知，助动词应选择do的适当形式，故排除选项A和B；从语序上考虑，排除选项D。as用作从句性替代词，等同于so，只是用于正式语体中。如：Our eating habits have changed, as has our way of life.五、asas结构1构成倍数比较句型：n times+asas例8 What a table! I ve never seen such a thing before. It is _ i

10、t is long.（NMET 2005湖北卷）A. half not as wide as B. wide not as half as C. not half as wide as D. as wide as not half解析答案C。not与谓语动词连用构成否定。as 作从属连词引导比较状语从句，常见结构为as.as，第一个as为副词，后接形容词或副词，第二个as为连词。程度修饰语应放在第一个as之前。2. as/so long as例9 Have you got any idea for the summer vacation?I dont mind where we go _ th

11、eres sun, sea and beach.( NMET 2008全国卷)A. as if B. as long as C. now that D. in order that解析 B。as long as最基本词义表示主从句动作延续时间一样长，可引导时间状语从句；若引导条件状语从句，表“只要”，同only if，为唯一条件。又如：As long as I know the money is safe, I shall not worry about it.（NMET 2003北京卷）3.as far as例10 _ I can see, there is only one possibl

12、e way to keep away from the danger.（NMET 2004北京春季卷）A. As long as B. As far as C. Just as D. Even if解析 B。as far as I knowcan seeam concerned表据我所知（我看、我所关心的）；as far as还表“远至”。4.as much as例11 The more I think about him, the more reasons I find for loving him _ I did.（NMET 2005湖南卷）A. as much as B. as long

13、 as C. as soon as D. as far as解析A。as much as表程度或数量；as long as表长度或条件；as soon as尽快；as far as远至，根据。若用于否定句中，第一个as换为so。例：Young people in the US dont care so much about fashion as those in China.5.as well as例12 John plays football _, David. (NMET 1994全国卷)A. as well B. as well as C. so well D. so well as解析

14、B。if not better than为插入语，对考生答题具有一定干扰。as well as在功能上相当于并列连词，用来连接两个平行成分，但不能用作并列连词。注意在连接两个并列谓语动词时，其后的动词使用动词-ing形式；除此之外，所连接的成分前后应保持平行、对等。试比较： Computers have been put into robots and _to make mobile phones as well as _with medical operations. (原创模拟)A. used ; to help B. used; help C. using; helping D. usi

15、ng; helped Computers have been put into robots as well as _to make mobile phones and _with medical operations. (原创模拟)A. used; to help B. having been used; help C. being used; helping D. using; helped答案与解析：B；B。中and为并列连词，used与谓语动词put保持一致。as well as用来连接两个并列状语，作不定式的宾语，故make与help保持一致；中as well as用来连接两个并列动

16、词，故紧随其后的动词使用-ing形式，并与谓语动词照应，使用having been used形式。其后and为并列连词，连接并列状语，作不定式的宾语，保持一致。6.as good as例13 He said he would do whatever he could to help me, and he was _ his word.A. as good as B. as well as C. as much as D. as many as解析A。as good as最基本词义是“和一样好”；还可表示“几乎，简直是”，其后接名词、动词或形容词均可，在功能上相当于副词very nearly。如

17、：The work is as good as finished.工作基本完成。If he finds out, Im as good as dead.要是他发现了，我就完了。六、as其他常见搭配1so as to例14 All these gifts must be mailed immediately _ in time for Christmas.（NMET 2005辽宁卷）A. in order to have received B. in order to receiveC. so as to be received D. so as to be receiving解析 C。so+(

18、adj./adv.)as to do既表目的又可表结果，在表目的时可以和in order to换用但不可置于句首。so后接形容词或副词时只表结果。此题结合时态和语态对考生进行综合考查。试比较：例15 My English teachers humor was _ make every student burst into laughter.( NMET 2008江西卷)A. so as to B. such as to C. such that D. so that解析B。从题干动词make可以看出，选项C和D应排除，sosuch that为从属连词，后接从句；此处such 为代词，表这样的人

19、或物，作表语，后续不定式表结果，其前加as to以示强调。试比较：My English teachers humor was such that makes every student burst into laughter.2as against/for/to/with例16 _ pandas, golden monkeys are in danger of dying out in our country.A. As against B. As for C. As to D. As with解析 D。此题考查as的常见搭配。as against与相对；as for somebodysome

20、thing就而言；as to(依照一定的标准或原则)根据、依照；as with和一样。3. as if/though例17 Elize remembers everything exactly as if it _ yesterday.( NMET 2006全国卷)A. was happening B. happens C. has happened D. happened解析D。as if 引导方式状语从句，同时涉及虚拟语气的用法。主从句动作同时发生，对现在假设，从句用一般过去时；若对过去假设则用过去完成时。as if后还可接to dodoing等。如：He opens his mouth

21、as if to speak.他张开嘴好像要说话。4.as还有以下常见搭配：(1) Leave the book as it was. 把书原样放好。(2) Just as exercise is to the body, so is reading to the mind. 正如锻炼对身体很重要，读书对大脑也一样重要。(3) My friend Martin was very sick with a strange fever; as a result, he could neither eat nor sleep. 我的朋友马丁患了一种奇怪的感冒。结果，病折腾得他既不能吃又不能睡。(4)

22、Steve, as usual, was the last to arrive.史蒂夫照例来得最晚。(5) Wild flowers such as orchids and primroses are becoming rare.兰花、报春花等野花越来越稀少。巩固性练习：1. There at the door stood a girl about the same height _. A. as me B. as mine C. with mine D. with me2. _ production up by 60%, the company has had another excelle

23、nt year. A. As B. For C. With D. Through3. _ the day went on, the weather got worse. A. With B. Since C. While D. As4. I do every single bit of house work _ my husband Bob just does the dishes now and then.A. since B. while C. when D. as55. We had better hurry _ it is getting dark.A. and B. but C. a

24、s D. unless 6. We cannot figure out _ quite a number of insects, birds, and animals are dying out. A. that B. as C. why D. when7. Parents should take seriously their childrens requests for sunglasses _ eye protection is necessary in sunny weather.A. because B. though C. unless D. if8. _ everybody kn

25、ows about it, I dont want to talk any more.A. For B. Even C. Since D. However9. _, he doesnt study well.A. As he is clever B. He is as clever C. Clever as he is D. As clever he is10. Famous as he is, _.A. his works are not widely read B. but his works are not widely readC. however his works are not

26、widely read D. still his works are not widely read11. _, I have never seen anyone whos as capable as John.A. As long as I have traveled B. Now that I have traveled so muchC. Much as I have traveled D. As I have traveled so much12. _ is reported in the newspapers, talks between the two countries are

27、making progress.A. It B. As C. That D. What 13. _ is often the case, we have worked out the production plan.A. Which B. When C. What D. As14. Its burning hot today, isnt it?Yes. _ yesterday. A. As was it B. So it was C. As it is D. So is it15. It is reported that the United States uses _ energy as t

28、he whole of Europe.A. as twice B. twice much C. twice much as D. twice as much16. Our neighbor has _ours.A. as a big house as B. as big a house as C. the same big house as D. a house the same big as17. Americans eat _ vegetables per person today as they did in 1910.A. more than twice B. as twice as

29、many C. twice as many as D. more than twice as many18. The WTO cannot live up to its name _ it does not include a country that is home to one fifth of mankind. A. as long as B. while C. if D. even though 19. After supper she would sit down by the fire, sometimes for _ an hour, thinking of her young

30、and happy days. A. as long as B. as soon as C. as much as D. as many as20. How far apart do they live? _ I know, they live in the same neighborhood.A. As long as B. As far as C. As well as D. As often as21. When a pencil is partly in a glass of water, it looks as if it _.A. breaks B. has broken C. w

31、ere broken D. had been broken22. John shut everybody out of the kitchen _ he could prepare his grand surprise for the party. A. which B. when C. so that D. as if23. The man we followed suddenly stopped and looked as if _ whether he was going in the right direction. A. seeing B. having seen C. to have seen D. to see24. 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 25. A typho