高中英語(yǔ)before的用法

1、 before的用法，     一、可以用作介詞     )指時(shí)間上早于，在之前，如：     She has lived here since before the war.     她從戰(zhàn)前就一直在這兒住。     )指位置在前面，如：     We knelt down before Grandmas grave.   &

2、#160; 我們?cè)谀棠痰哪骨肮蛳隆?    )指順序或排列在之前，如：     Your name comes before mine on the list.     名單上你的名字在我之前。     )在某人面前，如：     She said it before the witness.     他是當(dāng)著證人的面說(shuō)的。   

3、;  二、作為連詞     其基本含義是“在之前”，又可以根據(jù)不同語(yǔ)境靈活翻譯成“才”、“還沒(méi)來(lái)得及就”、“趁”、“就”等。具體用法如下：     )與情態(tài)動(dòng)詞can/could連用     這時(shí)候從句雖為肯定形式，根據(jù)漢語(yǔ)表達(dá)習(xí)慣譯成“還沒(méi)來(lái)得及就”，如：     Before I could get in a word，he had measured me.     我還沒(méi)

4、來(lái)得及插話他就為我量好了尺寸。     Before she could move，she heard a loud noise，which grew to a terrible roar.     她還沒(méi)來(lái)得及邁步，就聽見一聲巨響，接著就是可怕的隆隆轟鳴。     )用于肯定句中強(qiáng)調(diào)主句所表達(dá)的時(shí)間，距離長(zhǎng)，或花費(fèi)的精力大，譯成“才”     We had sailed four days and four nights before

5、 we saw lands.     我們航行了四天四夜才看到陸地。     We waited a long time before the train arrived.     我們等了很長(zhǎng)時(shí)間火車才到。     )用于否定句中，強(qiáng)調(diào)主句所表達(dá)的時(shí)間，距離短，或花費(fèi)的精力小，譯成“不到就”如：     We hadnt run a mile before he felt tired. 

6、0;   我們跑了還不到一英里他就累了。     )主句含有hardly，scarcely等半否定副詞時(shí)可以譯為“剛就”     這時(shí)候主句應(yīng)用過(guò)去完成時(shí)態(tài)，從句用過(guò)去時(shí)，還可以用when替代before如：     We had scarcely reached the school before/when the bell rang.     我們剛到學(xué)校鈴聲就響了。    

7、; )有時(shí)還有“寧愿”的意思 Id shoot myself before I apologized to him.我寧死也不向他道歉。I'd die before I'd tell. 我寧死也決不會(huì)說(shuō)出來(lái)。 否則,要不然Get out before I call the police. 滾開,否則我叫警察。  )用于It+be/take+時(shí)間段+before句型     在這一句型中又可以根據(jù)主從句的時(shí)態(tài)分成兩種情況。     若主句是一般時(shí)將來(lái)時(shí)態(tài)，從句是一般現(xiàn)在時(shí).若主句是

8、肯定句意思是“要過(guò)多長(zhǎng)時(shí)間才”；若主句是否定形式翻譯成“用不了多久就”。     It will be two weeks before everything returns to normal.     兩周之后一切才能恢復(fù)正常。     It will be many years before the situation improves.     這種狀況或許要過(guò)許多年才能得以改善。     

9、;It wont be long before we meet again.用不了多久我們就會(huì)再見面的。     這時(shí)若主句是一般過(guò)去時(shí)從句也是一般過(guò)去時(shí)。若主句是肯定句翻譯成“多長(zhǎng)時(shí)間之后才”，若主句是否定形式翻譯成“沒(méi)過(guò)多久就”。如：     It was some time before I realized the truth.     過(guò)了很長(zhǎng)一段時(shí)間我才了解到真相。     It wasnt long before she

10、became a brave solider.     沒(méi)過(guò)多久她就成了一名勇敢的戰(zhàn)士。     After that it still took seven years before they got married.     他們又過(guò)了七年才結(jié)婚。     注意：當(dāng)主句的謂語(yǔ)動(dòng)詞為延續(xù)性動(dòng)詞時(shí)，before與until有時(shí)可以互換。It was an hour before/until the police arrived.

11、60;   鞏固練習(xí)     (2004天津)It was evening _ we reached the little town of Winchester.     Athat B.until C.since D.before     2.(2004全國(guó))Several weeks had gone by _we realized the painting was missing.     A.as

12、B.before C.since D.when     3.(2005廣東)The America Civil War lasted four years _ the North won in the end.     A.after B.before C.when D.then     4.(2005山東)It was some time _ we realized the truth.     A.when B.until C.since D.before     5.(2006四川)-Why didnt you tell him about the meeting？     -He rushed out of the classroom _ I could say a word.     A.before B.until C.when D.after     6.(2006福建)-How long do you t