【考点7】高考高频连词before的用法。
【考例1】
--Why didn’t you tell him about the meeting? (四川卷06-36)
--He rushed out of the room I could say a word.
A. before B. until
C. when D. after
2.A dozen ideas were considered _____ the chief architect decided on the design of the building. （上海卷06-30）
A. because B.before
C. whether D. unless
3.It was some time _______we realized the truth.( 山东卷05-24)
A.when B. until
C. since D. before
4.Scientists say it may be five or six years ____ it is possible to testt his medicine on human patients. (福建04-31)
A. since B. after
C. before D. when
5.It was evening ____ we reached the little town of Winchester. (04天津—32)
A. that B. until
C. since D. before
【考例2】
6. Several weeks had gone by ____ I realized the painting was missing. (04全国IV—30)
A. as B. before
C. since D. when
7.He made a mistake,but then he corrected the situation ____ it got worse.(2003北京高考)
A. until B. when
C. before D. as
8..It ＿＿ long before we ＿＿ the result of the experiment．(上海2002春)
A．will not be; will know
B．is; will know
C．will not be;know
D．is; know
9.The field research will take Joan and Paul about five months; it will bea long time _____ we meet them again. （2007安徽卷-21）
A．after B．before
C．since D．when
10.--What was the party like﹖
--Wonderful．It's years ＿＿ I enjoyed myself so much．(NMET1993)
A．after B．before
C．when D．since
【透视】1-5 ABDCD 6-10 BCCBD
2. 本题考察时间状语从句。意为“在…之前”，故选B。
7.根据句意：他犯了错误，但没等局势恶化，他就扭转了局势。before引导时间状语从句，本题选C正确。
【超链接】 before是一个十分常用的连词，也是高考热点之一。它除了表示时间关系之外，还可以表示选择关系。根据其在句中的实际情况,可译为：
①在……之前，如：
Ann wants to see you before you go.
安在你走之前想见你；
② ……（之后）才 ……，如：
It was a long time before I got to sleepagain.
很长一段时间后我才重新入睡；
③（不多久）就 ……，如：
It wasn’t long before she came back.
不久她回来了；
④还没来得及……就……，如：
Before John stopped her, she ran out.
约翰还没来得及阻止她，她就跑了出去。
⑤以免 ……，如：
Lock your bike before it gets stolen.
锁好你的自行车，以免被偷；
另外，有时before相当于ratherthan，可理解为“（宁愿 ……也）不愿……”，如：I’d shoot myself before I apologized to her.
我宁死也不向她道歉。
before还常用于：
It (will) be＋一段时间＋before从句这一句型
用于before sb. knew it的习惯用语中译为“不知不觉就……”。
【精练】
1．He almost knocked me down ______ he saw me.
A. while B. before
C. after D. until
2.It won't be long _______ you regret what you've done to your brother.
A. after B. before
C. since D. then
3.________ they started to talk, they forgot about the time.
A. Once B. So
C. Though D. Before
4.It ________four years ________we meet again.
A. is, since
B. will be ,before
C. has been, since
D.is, before
5.How long will it be ______ she comes back from America?
A. that B. since
C. before D. until
6.It was 12 o’clock at midnight ______ they arrived at a ______ village.
A. since; alone
B. before;lonely
C. that; lonely
D. when; lonely
7.It is 4 years ______ she will study in that college.
A.before B. that
C.when D. after
8.She was such a proud person that she would die ____ she would admit she was wrong.
A、rather than B、until
C、after D、before
9. How long do you think ________ the computer company brings out a new
product?
A. it will be before
B. will it be until
C. will it be when
D. it will be that
10.It was not long _______ he was born _______ his mother died．
A．before；that
B．since；when
C．until；when
D．after；that
【答案与简析】BBABC DBDAD 5.分析语境逻辑可知,该句表她从美国返回之前还要过多长时间。
8. before在本句中意为rather than sth
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