when和while用法小结

1、连词 while 的用法连词 while 的用法有好几种，使用时不可掉心轻心，它大数有以下几种用法：1、表示时间，意思是“当 的时候 ”， while 可以位于句首，也可以位于句中。我们在看电视时，她一个人在房间里读小说。， the telephone rang . 他正在整理行装，电话铃响了。， she fell asleep .她听着收音机睡着了。While 引导从句时， 如主句和从句的主语一致，从句的谓语又含有 be，那么从句的主语和 be 可省略， While后可直接跟现在分词、名词、形容词或介词短语。a. We are students while ( we are ) servin

2、g as teachers. 我们一面当老师，一面当学生。b. While (he was )yet a youth he gained many prices. 当他还是个青年时，他就多次获奖。c. She never dreams她睡着时从来不做梦。d. Tom had an accident在来这儿的途中，汤姆出了事故。2、表示对比或转折，意思是“而 ”，这时， While 一般位于句中，如：Kate was dressed in green while Jenny was dressed in red .凯特穿绿色衣服，而詹妮穿绿色衣服。She likes singing and da

3、ncing while her brother would rather read novels而她弟弟喜欢小说。 ,Young people are like the sun rising in the east while old people are like the sun setting in the west .年轻人犹如旭日东升，而老年人犹如日薄西山。a. She though I was talking about her daughter ,in fact , I was talking about my daughter .(NMET 95)A. whomB. whereC

4、. whichD. whileb. I do every single bit of houseworkmy husband Bob just does the dishes now and then .04 广西 A sinceB whileCwhenD as3、表示让步，通常用在句首，意思是“尽管 ”、 “虽然 ”，如：While he had a handsome income, he couldn t afford to buy a piano他.虽然收入不少，但卖不起钢琴。While they are my neighbours, I don t know 尽them管他well们是

5、.我的邻居，但我不了解他们。，I think they went too far. 我虽然同情他们， 但也感到他们做得有些过分了。， he was not loved. 他虽然受到尊敬，但没有受到喜爱。， he is very strict with them . 虽然他爱他的学生，可是他对学生们很严格。4、表示条件，意思是“只要 ”（ =as long as ） . While可以位于句首，也可以位于句中。You don t have to worry while we are here .只要我们在，你就别着急。There will be life while is water and a

6、ir.只要有空气和水，就有生命。While there is life, there is hope.留得生命在，不怕没希望。5、 “同时，也 ”.While the book is welcomed by scholars, it will make an immediate appeal to the general readers.这本书受到学者的欢迎，同时也会引起一般读者的兴趣。6、 “趁着 ”. Make hay while the sun shines. 晒草要趁阳光好。 （谚） strike while the iron is hot. 趁热打铁。（谚） While the ro

7、ses are yet in bloom , will you come with me to see them? 趁着玫瑰花还开着， 你我一道去看好吗？1. I am going to the post office you there ,can you get me some stamps ?(99)A asB whileC becauseD If2.the WTO cannot liveup to its nameitdoes notincludea country that is home to onefifth ofmankind .(2000)A as long asB while

8、C IfD even though3.I know the money is safe , I shall not worry about it .(03 北京 )A Even thoughB UnlessC whileD As long as4. We were told that we should follow the main roadwe reached the central railway station .(04辽宁 )A Even thoughB untilC whileD wherever5.modeling business is by no means easy to

9、get into, the good model will always be in demand.(04浙江 )A WhileB SinceC AsD If6.I accept that he is not perfect, I do actually like the person.(04湖南 )A WhileB SinceC AsD Unless7. The cost of living in Glasgow is among the lowest in Britain,the quality of life is probably one of thehighest.(06天津 )A

10、sinceB whenC asD while8.I really don t like art , I find his work impressive.山07东 A AsB sinceC IfD while9. In some places women are expected to earn moneymen work at home and raise their children .08四川 A butB whileC becauseD though10.the Internet is of grea t help ,I don t think it s a good idea to

11、spend too much time湖南on) it .(08A IfB whileC BecauseD As11.Areyou ready forSpain? -Yes, I want the girls toexperience thatthey are young.(08 年上海 )A whileBuntilC ifD before高考英语 when 的用法命题走向与解题策略 高考走向 When 的用法在高考中也是重现率较高的语言点，尤其是when 用作关系副词来引导定语从句。综观近几年的高考英语试题，其考查方式多通过“单项填空 ”进行，偶尔也出现在“短文改错 ”和 “完形填空 ”中。

12、一、 When(at that time) 用作副词1用作关系副词， 引导定语从句起状语作用， 既不能作动词的宾语，也不能作介词的宾语。 译为 “当 时 ”相当于 “介词 at, in, on, during+which 结构 ”1 高考考例 1. We are living in an agemany things are done on computers.A whichB thatCwhoseD when(MET2003 春北京单项填空 ) 高考考例 2. You will see the dayChina will catch the highly developed countrie

13、s.A thatB whenC whichD on when(1985 全国 )又如： I also enjoyed the evenings when we spent together(NMET95短文改错 ) 思路点拨 答案是 把 when 改为 that 或 which ，或划掉 when. 高考考例 3. I shall never forget those yearsI lived in the county with the farmers ,has a greateffect on my life . （ 1994 年上海高考题）A that ,whichB when, whi

14、chC which ,thatD when, who比较： I shall never forget those years which I spent together with you . 高考考例 4. Then the .great day came43he was to march past the palace in the parade .（接受检阅的队伍） .（ NMET98 完型填空） A whereB sinceC whenD till注意： When 还可以用作关系副词，引导非限制性定语从句。 高考考例 5. It was an exciting moment for t

15、hese football fans this year .for the first time in years theirteam won the World Cup .2000 年普通高等学校春季招生全国统一考试（北京、安徽卷）A thatB whileC whichD when常考句型： There are times whenThere was a time whenGone are the days when .例如： There are times. 有时我也不明白我为什么要做这个工作。It was the sort of morning.那天上午就是那样，事事不顺心。2用作疑问

16、副词，引导名词性从句（the time when ） . 在从句中既作连接词，又作状语。I d like to knowwhen they will let him out.我想知道他们何时放他出来。When we can begin the expedition is still a question.我们何时才能开始这次考察仍悬而未决。He didn't make it clear when and wherethe meeting would be held . 他没说清会议于时何地举行。Fall is when fruits become ripe.秋天是果实成熟的季节。The

17、y are waiting outside forwhen they should be wanted.他们在外面等着，随时听候着指派。The time was when we were happy and gay.那时候我们无忧无虑。That will be when you are old enough.那要等你长大之后去了。 高考考例 6. I rememberthis used to be a quiet village.A whenB howC whereD what (NMET93-29) 思维拓展 7. Why not try your luck downtown, Bob? T

18、hatthesbest jobs are.(2007 浙江卷 )A whereB whatC whenD why二、 when 用作连词1 “当 时 ”用来引导时间状语从句。 （ at the time that） 高考考例 8. Don t be afraid of asking for helpit is needed.A unlessB sinceC althoughD when(NMET2003 单项填空 )又如 .She rubs her teeth with her finger(47) she wants to brush her teeth.（ NMET95完型填空）注意： 1

19、.A whenB untilC sinceD while当引导时间状语从句时，从句中应用一般现在时代替一般将来时。 高考考例 9. -When will you come to see me , Dad?（ 2003年春北京单项填空）-I will go to see you when youthe training course.A will have finishedB will finishC are finishingD finish 高考考例 10. -Whenagain?-When he,I will let you know.A he comes, comesB will he

20、come, will comeChe comes, will comeD will he come, comes （ 1985 全国） 思维拓展 When 表示某个具体的时间，所引导从句的动作或是与主句的动作同时发生，或是先于主句动作。 When 可指一般时间，也可指一点时间，既可表示一时性的动作，又可表示持续性的动作。Whenever指的是 “任何一个不具体的时间”。 As所表示的动作与主句动作同时发生，具有延续的含义，一般同延续性动词连用。 While 只能表示持续性的动作或状态，不能表示一时性或短暂性的动作。As 或 while 可译为“一边一边，正当的时候 ”He entered th

21、e roomthe meeting was going on .正当开会的时候他走进了房间。she comes, I shall tell her to wait for you.她来的时候我会告诉她等你的。Jim was reading, Jack was writing.吉姆阅读的时候，杰克在写东西。he finished the speech, the audience burst into applause.他讲话结束的时候，听众掌声雷动。I was walking along the roadsuddenly someone patted me on the shoulder fro

22、m behind.我正在路上走着，这时突然有人从后面拍拍我的肩膀。注意： 2.当引导时间状语从句时，状语从句的主语常常省略。 高考考例 11. Michael used to look hurt and surprised when.A )scoldingB)to scoldC)having scoldedD)scoldedGenerally speaking,according to the directions, the drug has no side effect.(03上海 )2. 即将、正要（ at which time, and then）用作并列连词，用来引导并列分句。 高考考

23、例 12.We re swimming in the lakesuddenly the storm started . （04 北京春）A whenB whileC untilD before 高考考例 13.He was about to tell me the secretsomeone patted him on the shoulder.A asB untilC whileD when（ 2002 上海高考题单项填空） 高考考例 14. I had just started back for the house to change my clothesI heard voices.A

24、asB whenC afterD wholeWhen 从句可能表示多种意义，这里它表示一种原来没有预料到的新情况出现。又是这一新情况打断了主2句表示的正在进行的活动， 或罅了即将发生的情况。 在这处情况下， 主句常用进行式、 完成式或 “be aboutto do . ”之类，我们来看下面的例题：例： I was about to leave the office when the telephone rang. 高考考例 15. I feltsomewhat disappointed and was about to leavesomething occurred whichattracte

25、d my attention .A unlessB untilC whenD while3. “既然. ”此时 when 从句说明主句的理由或是一种借故。（ since; considering that ） 高考考例 16. Why do you want a new jobyou ve got such a good one already ?A thatB whereC whichD when (NMET1998 )又如： I can ttell you anything when you wont listen既然.你不想听，我就不告诉你了。How can I help when th

26、ey wont listen to me ?既然他们不听我的，我怎么能帮他们？4 “如果；要是 ”此时 when 从句表示条件，意思上接近“在的情况下 ” 高考考例 17. How can I get a jobI can t even read and write?A unlessB becauseC whenD although又如： Come when you are ready . 如果你准备好了，就来吧。5 “还没（刚刚） .就 ”此时表示主、从句的动作几乎同时发生。主句动词和过去完成时，从句动词用一般过去时。He had hardly gone to bed when the do

27、or bell rang.他刚刚睡下，门铃就响了。They had hardly for half an hourwhen she entered .=They had not talked for half an hou r before she entered .他们才谈了不到半小时她就进来了。6. “虽然；尽管 ” (although) 本该“可 而 /却 ”此时 when 含有对比或让步意义。He walked when he might take a taxi .尽管他可以乘坐出租车，不过他还是步行。They have only three copies when we need f

28、ive.我们本该需要五本，而他们却只有三本。7. When 还可用作并列连词“那时；然后 ”。 (and at that time ) 此时 when 前往往有 “ ,号”。They are longing for New Year, whenDaythey can have a few days holiday .(when = and on New Year s他们渴望着新年的到来，那时，他们可以有几天的假期。They arrive at 6 , when we all have dinner.他们六点到，那时我们大家一起吃饭。The Queen s last visit was in M

29、ay , when she opened the new hospital 女.王上次来访是在五月份，那时她主持了这家医院的落成典礼。三、 When 用作代词（疑问副词） ， “什么时候，那时 ”（ what or which time）When were you living in Spain ?您是在什么时候住在西班牙的？Since when has he taught here ?她什么时候开始在这儿教书的？ 高考考例 18. -My foot hurts terribly. doctor. Well , I wonderit has been like this.A since whe

30、nB since thenC howD when19.The book was written in 1946the education system has witnessed great changes .（ 2007 年山东卷）A whenB during whichC since thenD since when又如： Since when has he been missing ?1. A terrible earthquake happened in that district at the end of 2005,many countries in the world paid

31、closeattention to this .A whereB whenC whatD that2. I rang you at about ten , but there was no reply .Oh , that was probablyI was seeing the doctor .A whenB whyC whatD that3. Sales of CDs have greatly increased since the early 1990s,people began to enjoy the advantages of thistechnology .A andB whenC whichD because4. Bekoff has found animalssometimes try tohitor bite,especiallythey are playing with a weakerpartner.A. ifB. beforeC. unlessD. when5. Well put off the picnic until next week,the weather may be better.A. whichB. whenC. sinceD. and6. Jasmine was holidayi