状语从句练习

1、一、in case引导的状语从句根据语境的不同，in case既可表示“如果”“万一”，引导条件状语从句；也可表示“以防(万一)”，引导目的状语从句。下面两道真题均选in case：1. Leave your key with a neighbor _ you lock yourself out one day. (北京卷)A. ever since B. even if C. soon after D. in case2. My parents live in a small village. They always keep candles in the house _ there is

2、a power cut. (重庆卷)A. if B. unless C. in case D. so that【解析】两道题都选in case，均表示“以防万一”。二、before引导的状语从句尤其要注意“it+be+一段时间+before”这一句型。如：1. The field research will take Joan and Paul about five months; it will be a long time _ we meet them again. (安徽卷)A. after B. before C. since D. when2. He was told that it

3、 would be at least three more months _ he could recover and return to work. (江西卷)A. when B. before C. since D. that【解析】两道题均before。第1题涉及的句式为：It will be a long time before，意思是“要过很久才会”；第2题涉及的句式为：it was some time before，意思是“在之前过了一段时间”，通常可转译为“要过一段时间才会”。三、while引导的状语从句尤其要注意while表示“尽管”“虽然”时的用法（此时它引导的不是时间状语从

4、句，而是让步状语从句此用法许多同学并不熟悉，值得特别注意！）。如：_ I really dont like art, I find his work impressive. (山东卷)A. As B. Since C. If D. While【解析】答案选D。while在此表示“尽管”“虽然”，又如：While the work was difficult, it was interesting. 尽管工作有难度，但很有趣。/ While I understand what you say, I cant agree with you. 虽然我理解你的意思，但我还是不同意。另外，while表示

5、对比的用法也值得注意（此时它表示“而”）。如：The cost of living in Glasgow is among the lowest in Britain, _ the quality of life is probably one of the highest. (天津卷)A. since B. when C. as D. while四、when引导的状语从句对于when的用法，同学们最熟悉的是表示“当的时候”。如：Wheres that report?I brought it to you _ you were in Mr. Blacks office yesterday. (

6、北京卷)A. if B. when C. because D. before【解析】答案选B。将四个选项逐一填入空格处，只有填when时，意思最通顺。句意为：当你昨天在布莱克先生办公室时我就带给你了。但是when还有一个用法，就是表示“既然”。如：Why do you want a new job _D_ youve got such a good one already?A. that B. where C. which D. when还有一点也需注意，就是when表示“这时(突然)”的用法。如：1. I had just stepped out of the bathroom and wa

7、s busily drying myself with a towel _B_ I heard the steps. (湖南卷)A. while B. when C. since D. after2. He was about halfway through his meal _C_ a familiar voice came to his ears. (辽宁卷)A. why B. where C. when D. while五、unless引导的状语从句unless的意思是“如果不”“除非”，对于涉及unless的考题，一般只要能读懂句意，弄清语境，一般不会有问题。如：1. Most bir

8、ds find it safe to sleep in the trees, but _ they have eggs or young chicks, they dont use a nest. (湖南卷)A. why B. how C. unless D. where2. I wont call you, _ something unexpected happens. (全国I)A. unless B. whether C. because D. while【解析】两道题都选unless，均表示“除非”。六、until引导的状语从句until的意思是“直到时”“在之前”，对于涉及until

9、的考题，一般只要能读懂句意，弄清语境，一般不会有问题。如：It is difficult for us to learn a lesson in life _A_ weve actually had that lesson. (天津卷)A. until B. after C. since D. when另外，还要注意notuntil这一句式（直到才）。如：“You cant have this football back _D_ you promise not to kick it at my cat again,” the old man said firmly. (广东卷)A. becau

10、se B. since C. when D. until七、once引导的状语从句once的意思是“一旦”，对于涉及once的考题，一般只要能读懂句意，弄清语境，一般不会有问题。如：1. You will be successful in the interview _ you have confidence. (福建卷)A. before B. once C. until D. though2. _ environmental damage is done, it takes many years for the ecosystem (生态系统) to recover. (江苏卷)A. Even if B. If only C. While D. Once【解析】两道题都选once，均表示“一旦”。八、where引导的状语从句where可以用于引导地点状语从句，其意为“在的地方”，此用法许多同学都不是熟悉，但高考经常考查，应引起特别注意。如：1. If you are traveling _ the customs are really foreign to your own, please do as the Romans do. (天津卷)A. in which B. what C.