高考最可能考八类状语从句

状语从句是高考英语的必考考点，综观近年来各省市状语从句的考题情况，我们发现以下八类状语从句特别值得关注：

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 case

2. My parents live in a small village. They always keep candles in the house _________ there is 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. when

2. He was told that it 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 don’t 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 can’t agree with you. 虽然我理解你的意思，但我还是不同意。

另外，while 表示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, _____D_____ 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：

—Where’s that report?

—I brought it to you _________ you were in Mr. Black’s office yesterday. (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_____ you’ve got such a good one already? (全国卷)

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 was busily drying myself with a towel _____B_____ I heard the steps. (湖南卷)

A. while                       B. when                   C. since                     D. after

2. 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

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