从句是复句中具有分属地位的分句，它是一种绝大部分语言都有的语法结构。以下是从句系列专项练习，请考生在做题时查缺补漏。

1.【四川省宜宾市2015届高三第一次诊】8. The results of the experiment proved to be very good, _________ was more than we expected.

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

【答案】A

2.【四川省宜宾市2015届高三第一次诊】9. _________a man’s age is, he can relax himself by wearing a confident smile.

A. Whichever B. Whenever C. Whatever D. However

【答案】C

3.【天津市第一中学2015届高三上学期月考】28.It wasn’t until near the end of the letter ______ she mentioned her own plan.

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

【答案】B

考点：考查not until的强调句结构

4.【天津市第一中学2015届高三上学期月考】26.-- What a mess! You are always so lazy!

-- I’m not to blame, mum. I am ______ you have made me.

A. how B. what C. that D. who

【答案】B

【解析】

试题分析：句意：乱糟糟的，你总是这么懒!不能怪我，妈妈，是你使得我这样的。分析语境可知what you have made me为what引导的名词性从句，在句中作表语，what在表语从句中充当made的宾语补足语。故选B.

考点：考查what引导名词性从句作表语

5.【天津市第一中学2015届高三上学期月考】24.--Did you receive the letter the next day?

--No, somehow, it was three weeks ______ I received it.

A. since B. when C. that D. before

【答案】D

考点：考查连词

6.【天津市第一中学2015届高三上学期月考】21.I looked through the window of our hotel, ______ I saw a man taking photos in the yard.

A. where B. at which C. when D. from where

【答案】D

考点：考查定语从句

7.【天津市第一中学2015届高三上学期月考】16.I still remember the accident and the troubles ______ has caused to me.

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

【答案】C

考点：考查定语从句

8.【天津市第一中学2015届高三上学期月考】17.The world is more forgiving than commonly ______, so we should be optimistic about life.

A. declared B. promoted C. supposed D. required

【答案】C

考点：考查省略句