巧用还原法快解单选题案例

在英语的单项填空题中,有许多是针对考生解题的思维定势所设计的“陷阱题”。出题人往往通过变化句子结构,把简单的句子改写成一个少见或陌生的结构,来干扰学生的思路,使学生误入“歧途”。对于这类题考生可以反其道而行之,把题干还原为自己所熟悉的结构。这样,题目就会变得简单,答案也就比较容易判定。具体来说,可采用以下几种方法:

一、疑问句改为陈述句

疑问句的使用,使句子的结构变得陌生,考生可将题干还原成陈述句。如:

1. Whom would you rather have _________ with you?

A. to go B. go C. gone D. going

分析:将题干还原为陈述句: Would you rather have whom ________ with you. 很容易看出测试的知识点是 have sb. do 结构。答案为 B 。

2. Is this factory _________ you visited yesterday?

A. that B. which C. the one D. where

分析:将题干还原为陈述句: This factory is ___________ you visited yesterday. 很容易看出该句缺先行词,所以选“ the one ”。答案选 C.

试比较: Is this the factory _________ you visited yesterday?

A. when B. which C. the one D. where

分析:将题干还原为陈述句: This is the factory __________ you visited yesterday. 此句缺定语从句的连接词。答案为 B 。

二 . 陈述句改为倒装句

考生们经常接触的是倒装句,而命题者却有意地使用陈述句来命题。如:

We had ______ got home than it began to rain.

A. no sooner B. hardly C. almost D. nearly

分析:“ no sooner … than ”是考生非常熟悉的一个倒装句型,但命题者却使用了一个陈述句。如果将题干还原为 _________had we got home than it began to rain, 就能很容易地选出答案 A 了。

三 . 倒装句改为陈述句

On the grass _________ two sheep.

A. lies B. lie C. laid D. lying

分析:将题干还原为陈述句: Two sheep _________ on the grass. 答案为 B.

四 . 去掉从句

命题者有时会故意在句子中插入从句造成主谓隔离以增强干扰。如果将从句去掉,题干就会变得很简单。如:

1. The young student did all that he could ________ the examinations.

A. pass B. to pass C. passing D. passed

分析: that he could 是一个定语从句。将其去掉就会发现这个句子少了一个目的状语。答案为 B 。

2. The days we look forward to ________ at last.

A. comes B. to come C. came D. coming

分析:本题易被误认为介词 to 的后面要接动名词(即动词 -ing 形式)。实际上 we look forward to 是一个定语从句,介词 to 的宾语为 the days 。去掉这个从句,就可以看出题干中缺少一个谓语。答案为 C 。

3. The country life he was used to _________ greatly since the opening policy.

A. change B. has changed

C. changing D. having changed

分析:去掉从句 he was used to ,可以看出本题缺少一个谓语。答案为 B 。

五 . 去掉插入语

1. Who do you think _________ us a talk this afternoon?

A. to give B. gave C. will give D. giving

分析: do you think 是插入语,把它去掉,答案也就一目了然了。答案为 C 。

2. He believes in himself, ________, in my opinion, is of the most importance.

A. that B. which C. what D. as

分析:去掉 in my opinion 可知这是一个非限定性定语从句。答案为 B 。

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