(三)结构还原法

结构还原是指把主从复合句还原为两个或几个简单句，把疑问句还原为陈述句，把强调句式或倒装句式还原为普通句式，把省略句补充完整，把被动结构还原为主动结构等。

例题1：

If a shop has chairs ________ women can park their men, women will spend more time in the shop.

A. that B. which C. when D. where

答案：D。此题是一个包含由women做主语的主句,并包含有由从属连词“If” 引导的条件状语从句和关系副词 “where” 引导的定语从句在内的一个主从复合句。把它们分解为三个简单句，即：(If) a shop has chairs. Women can park their men there(on the chairs). They(the women) will spend more time in the shops。就很容易看出，其中两个简单句的重叠部分是表地点的chairs,用where引导定语从句，相当于on which，这样一来，找出正确答案就很容易了。

例题2：

— ________ that he managed to get the information?

— — Oh, a friend of his helped him.

A. Where was it B. What was it C. How was it D. Why was it

想想看，答案为什么是C。

例题3：

Months ago we sailed ten thousand miles across the open sea, which ________ the Pacific, and we met no storm.

A. was called B. is called C. had been called D. has been called

想想看，答案为什么是B。

例题4：

— Why does she always ask her for help?

— There is no one else ________, is there?

A. who to turn to B. she can turn to C. for whom to turn D. for her to turn

想想看，答案为什么是B。