英语名词性从句题20套（带答案）及解析

英语名词性从句题20套(带答案)及解析

一、初中英语名词性从句

1．______ will be in charge of the meeting has not been decided yet.

A. What B. Which C. That D. Who 【答案】 D

【解析】【分析】句意：谁将负责这次会议还没有决定。______ will be in charge of the meeting是一个主语从句，从句中缺少主语，指人，故选D。 【点评】考查名词性从句，本题涉及who引导的主语从句。

2．___ surprised me most was ____the girl passed the driver test.

A. That; that B. What; how C. What; that D. That; why 【答案】 C

【解析】【分析】句意：最让我吃惊的是那个女孩通过了驾驶考试。 ___ surprised me most 是一个主语从句，从句中缺少主语，故填what； ____the girl passed the driver test是一个表语从句，句中不缺少成分，故填that。因此选C。

【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句。

3．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties.

A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D

【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。

【点评】考查名词性从句和定语从句，本题涉及固定句式it is known to us all that…和whom引导的限制性定语从句。

4．Some people believe _______ has happened before or is happening now will repeat itself in the future.

A. whatever B. whenever C. wherever D. no matter what 【答案】 A

【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。

【点评】考查名词性从句，本题涉及\特殊疑问词+ever\引导的主语从句。

5． is even more important is the earth cooled down, water began to appear on its

surface.

A. When; that; when B. What; whether; as C. What; that; as D. lt; whether; as 【答案】 C

【解析】【分析】这题考查从句的用法，第一空填what引导主语从句，在主语从句中what做主语，第二空填that引导表语从句，在表语从句中，as是引导时间状语从句，句意是：甚至更重要的是：随着地球的冷却，水开始出现在表面。选C。

6．Has it been announced ______?

A. when are the planes to take off B. that are the planes to take off C. where are the planes to take off D. when the planes are to take off 【答案】 D

【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗？此处是when引导的主语从句，且要用陈述句语序，故选D。

【点评】考查名词性从句，it作形式主语，关系副词when引导的从句作真正的主语。

7．____ he will offer us enough help doesn't matter a lot to our success. A. If B. Whether C. Before D. How 【答案】 B

【解析】【分析】句意：他是否提供帮助对于我们的成功没有什么关系。If不可以引导主语从句，故选B。

【点评】考查名词性从句，本题涉及whether引导的主语从句的应用。

8．______ amazed the NBA world is ______ Kobe Bryant scored 81 points just in one game. A. That, what B. What, that C. That, that D. What, what 【答案】 B

【解析】【分析】句意：使NBA世界惊讶的是Kobe Bryant在一场比赛中得了81分。根据句意可知，句子主语是一个主语从句，引导词即起引导作用又要做从句的一个成分，所以第一空填What；第二空是that引导的表语从句，只起引导作用，故选B。

【点评】考查名词性从句，本题涉及关系代词what引导的主语从句和表语从句的应用。

9．________ has been proved is that animals and insects have their own languages.

A. What B. As C. It D. That 【答案】 A

【解析】【分析】句意：已被证明的是动物和昆虫有自己的语言。根据is判断，此处为主语从句，分析该从句，缺少主语，用what。选A。

【点评】考查名词性从句，本题涉及what引导的主语从句的应用。

10．____________ matters most in learning English is enough practice.

A. Why B. That C. Which D. What 【答案】 D

【解析】【分析】句意：学习英语中最重要的是有足够的练习。A. why为什么；B. that引导名词性从句只起引导词作用，不充当成分；C. which哪一个；D. What什么。根据语境用what引导主语从句，并在句中做主语。故答案选D。

【点评】考查主语从句的引导词。主语从句属于名词性从句的一种，填哪个连接词要分析从句缺少什么成分，然后确定所选的词。

11．It matters little ______ a man dies, but _____ matters much is ______ he lives.

A. how; what; how B. how; it; how C. why; it; why D. that; what; that 【答案】 A

【解析】【分析】句意：一个人如何死去并不重要，重要的是他如何生活。it为形式主语，how从句为真正的主语。What matters much （=the thing that matters much）。第一个how引导的是一个主语从句；it作形式主语；what引导的是主语从句；第二个how引导的是表语从句。故选A。

【点评】考查名词性从句，本题涉及主语从句和表语从句的应用。

12．_______ caused the accident has not been found out yet.

A. What B. Which C. The thing D. That 【答案】 A

【解析】【分析】句意：造成事故的原因还没有查明。此处为主语从句，从句中缺少主语，应该用what引导，故答案为A。 【点评】考查主语从句。以及what的含义。

13．________ is the centre of our planetary system was a difficult concept to grasp in the Middle Ages.

A. It's the sun and not the earth B. The sun and not the earth C. Being the sun and not the earth D. That the sun and not the earth 【答案】 D

【解析】【分析】句意：太阳而不是地球是我们行星系统的中心，这在中世纪是一个很难理解的概念。分析句子可知，整个句子为主系表结构，was为系动词，它之前的都为主语，且主语由句子来充当，句子结构以及句意完整，所以连词代词为that。故选D。 【点评】考查名词性从句，本题涉及that引导的主语从句。

14．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful.

A. That; what B. What; which C. It; which D. As; that 【答案】 B

【解析】【分析】句意：众所周知，中国已经发射了神州7号宇宙飞船，这是中国首次成功的太空行走。第一空处为主语从句，从句缺少主语，需用what引导；第二空所在句子是个定语从句，先行词为整个主句的内容，从句中缺少主语，需用which引导。故选B。 【点评】考查名词性从句和定语从句，本题涉及主语从句和非限制性定语从句的应用。

15． is known to all is that the earth is smaller than the sun.

A. As B. What C. It D. Which 【答案】 B

【解析】【分析】句意：众所周知地球比太阳小。 is known to all 是主语从句，从句中缺少主语，因此用what，选B。

【点评】考查名词性从句，本题涉及what引导的主语从句。

16．I never doubt .

A. whether this song is worth listening to B. if this song is worth listening C. that this song is worth listening D. that this song is worth listening to 【答案】 D

【解析】【分析】句意：我从来没有怀疑这首歌值得去听。根据句子结构分析，本句是宾语从句，根据主句I never doubt，可知从句是陈述句，故排除A 和B，又因为listen to为固定搭配，故选D。

【点评】考查宾语从句。注意识记宾语从句的用法。

17．_________ is known to all is that the earth is smaller than the sun.

A. As B. What C. It D. Which 【答案】 B

【解析】【分析】句意：众所周知，地球比太阳还小。复合句的主语是一个名词性从句，从句没有引导词和主语，表示“所……的（事）”，故用what引导，其双重作用，故选B。 【点评】考查名词性从句，本题涉及what引导的主语从句。

18． is obviously right is to give all children equal opportunities to develop their special gift. A. Which B. As C. That D. What 【答案】 D

【解析】【分析】句意：明显正确的做法就是给所有的孩子提供平等发展特殊才能的机会。连接词引导一个主语从句，并在主语从句中做句子的主语，故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句。