名词性从句用法讲解与专项练习题及答案
名词性从句包括主语从句、宾语从句、表语从句和同位语从句。高考常从连接词的选择、语序、语气、时态等方面来考查。名词性从句中的连接词有连词that / whether / as if，连接代词what / who/ which /whose / whatever / whoever / whomever / whichever，连接副词where /when /why / how / wherever / whenever。
第1讲 引导名词性从句的连接词
考点1. 引导名词性从句的连接词有哪些
有学生认为，引导同位语从句只能用that, 这句话对吗？先看下面几个句子。
① I have no question that he will come. ② I have a question whether he will come ③ I have a question when he will come.
我们可以看出：上面三个句子中question后面都是同位语从句，都是说明question的内容的。
在句①中，同位语从句的原句是陈述句，由that引导； 在句②中，原句是一般疑问句，由whether引导； 在句③中，同位语从句的原句是特殊疑问句，特殊疑问词也起着连接作用。
其实，所有名词性从句的连接词都有上面的三种情况。 宾语从句：
I don’t know that he will come. I don’t know whether/if he will come. I don’t know when he will come. 表语从句：
What I don’t know is that he will come. What I don’t know is whether he will come. What I don’t know is when he will come.
That they are good at English is known to us all.
主语从句
That he will come is obvious.
Whether he will come isn’t known yet. When he will come isn’t known yet.
The problem is that we don’t have enough money. She expressed her hope that they would come to China one day.
2. 【2012全国新课标】It is by no means clear ______ the
president can do to end the strike. A. how
B. which
C. that
D. what
1. 【2010浙江】It is uncertain ______ side effect the
medicine will bring about, although about two thousand patients have taken it. A. that
B. what
C. how
D. whether
3. 【2012山东】It doesn’t matter ______ you pay by cash
or credit card in this store. A. how
B. whether C. what
D. why
4. 【2013陕西】It remains to be seen ______ the newly
formed committee’s policy can be put into practice. A. that
B. which C. what
D. whether
5. 【2009天津】It is obvious to the students ______ they
should get well prepared for their future. A. as
B. which
C. whether D. that
6. 【2012江西】It suddenly occurred to him ______ he
had left his keys in the office. A. whether
B. where
C. which
D. that
考点2. 引导词that的省略问题
主语从句、表语从句、同位语从句中连词that不能省略。
只有宾语从句中的连接词that可省略，但在以下几种情况中that也不能省略：
A. 当that从句和主句谓语动词之间有插入词语或者从句主
语之间有插入语时，that不可省略。
He judged that, because he was a child, he did not understand.
B. 当两个名词性从句并列作宾语时，后面的that不能省。
Everyone knew what happened and that she was worried.
C. 当that作介词宾语时，that不可省掉。
The reason lies in that she works harder than the others do.
7. ______ we need more practice is quite clear.
A. When
B. What
C. That
D. /
from Beijing. A. except that
B. except for
D. besides
C.
except
14. Human beings are different from animals ___ they can
use language as a tool to communicate.
A. for that B. in that C. in which D. for which (如果不理解本题，可以参看P. 错误!未定义书签。错误!未找到引用源。)
考点3. whether 与if引导名词性从句时的区别
A. 在主语从句、表语从句、同位语从句中只能用whether,
不能用if。
Whether the meeting will be put off has not been decided yet.
The question is whether they have so much money. We ought to discuss carefully the question whether we can do it or not.
B. 在宾语从句中whether和if可以互换，但： i. 作介词宾语时连接词一般用whether。如：
It all depends on whether they will come back. ii. 后面直接跟or not 时用whether。如：
D. why
I didn’t know whether or not he had arrived in Wuhan.
C. whether也可与动词不定式连用，但if不能。
8. ______ fashion differs from country to country may
reflect the cultural differences from one aspect. A. What
B. That
C. This
D. Which
9. 【2010上海】One reason for her preference for city
life is ______ she can have easy access to places like shops and restaurants. A. that
B. how
C. what
10. The reason why I didn’t go to Shanghai was ______
a new job. A. because I got getting C. I got
D. that I got
B. because of
I have not decided whether to go or not. D. whether常与or连用表示一种选择，if不能这样用：
The question of whether they are male or female is
11. 【2011全国I】The next thing he saw was smoke ______
from behind the house. A. rose
B. rising C. to rise D. risen
not important.
E. whether可引导一个让步状语从句表示“不管”、“无
论”，而if不能。如：
12. Having checked the doors were closed, and ______
all the lights were off, the boy opened the door to his bedroom. A. why
B. that
C. when
D. where
Whether he comes or not, we will begin our party on time.
F. discuss后通常用whether。
15. ______ you can succeed in the end will mainly depend
on ______ you do and ______ you do it.
13. I know nothing about the young lady—______ she is
A. If; what; why C. Whether; how; why
B. Whether; what; how D. That; whether; how
24. I don’t doubt ______ he’ll come.
A. that
B. if
C. what
D. whether
16. 【2009上海】It is not immediately clear ______ the
financial crisis will soon be over. A. since
B. what
C. when
D. whether
25. After three days’ waiting, there was a little doubt
in the mother’s mind ______ the police could find her lost child. A. how
B. that
C. where
D. whether
17. They discussed ______ they could settle the problem
without others’ help. A. if
B. that
C. what
D. whether
考点5. 名词性从句是复合句时，不要忘了带that (双连接
词) 改错:
① The question was that whether he could get a job
at the center.
② You have no idea that how busy we were those days. ③ It is well known what a person eats causes changes
B.
that;
in the body. 答案及解析：
D. whether;
①去掉that,。后面whether本身就起着连接作用。 ②去掉that。 who, how, when, what等本身就有两个作用：作从句的成分；起连接作用。
③在what前面加that。what只是把主语从句的两个分句连接起来，但其作为一个整体来作主语从句时还需要用
18. What the doctor is uncertain about is ______ my
mother will recover from the serious disease soon. A. when
B. how
C. whether D. why
19. Mr. Hopkins has not yet answered my question ______
I can go with him to ______ he calls the Underground Treasure House next week. A. that; which where
C. whether; that what
20. I have no idea ______ or not he has finished the work.
A. if
B. that
C. whether D. which
考点4. question 与doubt 后跟同位语从句时的连接词问
题
doubt，question用于肯定结构时，后面用whether引导名词性从句；用于否定结构或疑问结构时，后面用that引导名词性从句。be sure 用于肯定句或疑问句时，后接that引导的名词性从句；用于否定句时，后接whether/ if引导的名词性从句。
21. I have no question ______ he will succeed.
A. whether
B. that
C. when
D. how
that引导。
26. Father made a promise ______ I passed the exam he
would buy me a bike. A. that
B. that if C. if
D. whether
27. It was true ______ she did delighted every one of
us. A. that which
28. Some language experts think ______ we learn
language in the same way ______ we learn other things, and ______ we’re born with is a general ability to learn and adapt. A. /; /; that what which; what
B.
that;
B. what
C. that what D.
that
22. Then I had a question ______ a spore（孢子）could
quickly get around and form mould (霉菌). A. why
B. that
C. that how D. if
23. The question came up at the meeting ______ we had
enough money for our research. A. that
B. what
C. which
D. whether
C. /; that; what that D. that; in which; that
29. She often thinks of ______ she can do more for her
motherland. A. what
B. how
C. that
D. that how
13. _____ is reported in the newspaper, talks between
the two countries are making progress.
14. There is no doubt ______ my friend was not important
to them all. III.
写作技能提升
30. At that time I had no idea ______ I could hand it
to him without being seen. A. if
B. how
C. which
D. that how
15. 【2006上海】一本书是否畅销取决于诸多因素。
I. 单句改错
1. 【2005重庆】One may not agree to the examination
system, but at present it is basically the only measure that the teacher and the rest of the world can depend on to decide if or not each of us meets the requirement.
2. If you come or not is up to you. 3. I have no idea if he will come tomorrow. 4. My suggestion is we go by bus instead
of by train.
5. Athletes are awarded some money is reasonable.
(Whether. . . )
16. 他的成功是因为他为比赛作了充分的准备。（his success,
lie in the fact, be well prepared）
17. 他近来没有尽最大努力，我们都很清楚。（do one’s best,
recently, be obvious to）
18. 我反对这个工程的原因是，它花费太多的钱，而这些钱
应当用来提高当地人们的生活水平。（the reason why …is that, to improve the lives of the local people）
19. 使我们这个学校特别的是，她的大多数毕业生都被名校
录取。（make …special, graduate, be admitted to, famous colleges）
20. 在我看来，这个公寓很完美，除去窗户稍微有点小外。
6. Everyone knows the fact Taiwan belongs to China. 7. He told me he had got used to the life there and he
was making progress.
8. That why he was late for school was that his mother
was ill.
II. 语法填空（每空至多填三词）
9. It’s uncertain ______ he will do tomorrow. 10. ______ is reported in the newspaper that talks
between the two countries are making progress. 11. ______ talks between the two countries are making
progress is reported in the newspaper.
12. ____ is reported in the newspaper is that talks
between the two countries are making progress.
（personally, perfect, except that）
21. 从你们发布在网站的广告我知道，你们学校发展很快，
你们想要聘用能说一口流利英语的人。
( advertisement/ad, post, website, develop, rapidly, employ, fluently)
22. 【2011湖北】他突然想到，第二天上午他有重要的会议
要参加。（occur to, conference）
23. 【2014上海】将来过怎样的生活取决于你自己。( up to) 24. 毫无疑问，玩电脑游戏过多对他们的健康有害，对他们
的学习有负面影响。（there is no doubt, be harmful to, have a negative effect on）
25. 我相信有志者事竟成，成功属于做出不断努力的人。