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1、before的特殊用法精品文档before的特殊用法before在高考的单项选择、完形填空以及短文改错中考的较多，尤其它的特殊用法。它的特殊用法主要有以下几种：1.用于“It will /wont be+时间段+before” 句型，表示 “.之后才. ； 用不了多久就；”另外还表示“不到就 ； 刚就 ；到之前”。It will be two weeks before everything returns to normal . 两周之后一切才恢复正常。It wont be long before we meet again .用不了多久我们就会再见面的。It may be many year
2、s before the situation improves .这次状况或许要过很多年才能得到发展。It was some time before I realized the truth . 过了很长一段时间我才了解到真相。I will ask you some questions before I give my answer .在我没有作答前，我要先问你几个问题。We waited a long time before the train arrived .我们等了很久火车才到。We hadnt run a mile before he felt tired .我们跑了还不到一英里他就
3、累了。2.以免，不然, 趁着Lock your bike before it gets stolen .锁好你的车子，以免被偷。Put that away before it gets broken .把它收拾好，免得砸碎了。We must take measures to protect endangered wildlife before it is too late .趁还不算太晚，我们必须采取措施保护濒临灭绝的野生动物。3.宁可，宁愿Id die before I apologized to them !我宁死也不向他们道歉！Id shoot myself before I apolo
4、gized to her . 我宁死也不向她道歉！4.还没来得及就Before John stopped her , she ran out . 约翰还没来得及阻止她，她就跑了出去。Before she could move , she heard a loud noise .which grew to a terrible roar .她还没来得及迈步，就听见一声巨响，接着就是可怕的隆隆轰鸣。【高考链接】1 He was told that it would be at least three more months _ he could recover and return to work
5、 .A. when B. before C. since D. that 2.We hadnt gone very far _ we had to stop at one of the traffic lights . A. before B. until C. after D. as soon as 3.We enjoyed ourselves so much in the World Park that three hours passed _ we knew it . A. when B. until C. before D. after4.It will not be a long t
6、ime _ Mr. Brown _ from abroad . A. before , returns B. since , has returned C. before , will return D. after , will return 5._ will be years _ we meet again . A. There , since B. There , after C. It , that D. It ,before 6. We must take measures to protect endangered wildlife _ it is too late . A. no
7、w that B. as long as C. unless D. before 7. We had to be patient because it _ some time _ we got the full results . A. has been , since B. had been , until C. was , after D. would be , before 8.How long is it _ we last spent the holiday in the country together ? A. until B. before C. since D. when 9
8、. You should do it _ it is too late , otherwise you will fail . A. until B. when C. before D. unless 10.- Its a long time _ I saw you last . - Yes, and what a pity it is now that it will be a long time _ we see each other again . A. before ,since B. since , when C. since , before D. where , before 1
9、1. Why didnt you try your best to get on the bus ?- I tried to , but _ I could it , it started moving . until B. when C. before D. after 12.Someone called me up in the middle of the night ,but they hung up _ I could answer the phone . A. as B , since C. until D. before 13.He made a mistake , but the
10、n he corrected the situation _ it got worse . A. until B. when C. before D. as 14.Scientists say it may be five or six years _ it is possible to test this medicine on human patients .A. since B. after C. before D. when 15.It was evening _ we reached the little town of Winchester . A. that B. until C
11、. since D. before 16.Several weeks had gone by _ I realized the painting was missing . A. as B. before C. since D. when 17. - How long do you think it will be _ China sends a manned spaceship to the moon ? - Perhaps two or three years . A. when B. until C. that D. before 18.- Why didnt you tell him
12、about the meeting ? - He rushed out of the room _ I could say a word .A. before B. until C. when D. after 19.The field research will take Joan and Paul about five months ; it will be a long time _ we meet them again . A. after B. before C. since D. when 20.I had been to Beijing long _ you visited it
13、 . A. before B. till C. after D. when 21. It wont long _ he joined the job . A. that B. before C. until D. and 22. That was really a splendid evening . Its years _ I enjoyed myself so much . A. when B. that C. before D. since 23.A man escaped from the prison last night . It was a long time _ the gua
14、rds discovered what had happened . A. before B. until C. since D. when 24.It is almost five years _ we saw each other last time .A. before B. since C. after D. when25.In those days , she had to be called two or three times _ she would come to her dinner .A. when B. before C. since D. that 26.- Has y
15、our father returned from Africa yet ? - Yes, but he _ here for only three days before his company sent him to Japan . A. was B. has been C. will be D. would be 27.Despite the great success of Change-1 ,experts say , it will be at least ten years _ our astronauts can land on the moon . A.while B. before C. since D. until 28.It _ long befo
