必备英语 名词性从句练习题 含答案解析

【英语】英语名词性从句题20套(带答案)含解析一、初中英语名词性从句1．It was never clear ________ the man hadn't reported the accident sooner.A. thatB. howC. whenD. why【答案】 D【解析】【分析】句意：这名男子没有早点报告这次事故的原因根本没有搞清楚。

It在句中是形式主语，真正的主语是why引导的主语从句。

故选D。

【点评】考查名词性从句，本题涉及why引导的主语从句。

2．Some people believe _______ has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. 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。

3．_______ are playing an important part is well known to us all.A. That whoB. Those whoC. Who thatD. Who【答案】 D【解析】【分析】考查主语从句。

句意：谁起着重要作用，这是众所周知的。

主语从句缺少引导词，从句缺少主语，故选D。

4．—Tell me something about your adventure in the rainforest, please.— We lost our way in the forest and ___ made matters worse was ___ night began to fall.A. what; thatB. it; thatC. it; becauseD. what; because【答案】 A【解析】【分析】考查名词性从句的连接词。

名词性从句练习题(含答案)经典一、名词性从句1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply.A. thatB. howC. whatD. which【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。

分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．Has it been announced ______?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. 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。

3．In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question.A. focused; whetherB. focused; ifC. has focused; whetherD. has focused; if【答案】 C【解析】【分析】考查时态和主语从句。

根据In the past decade,在最近的几十年里，可知句子用现在完成时态，our education system是句子的主语，单数形式，所以第一空填has focused；第二空是主语从句做主语，if是否，不能引导主语从句，所以第二空填whether。

英语名词性从句题20套(带答案)一、初中英语名词性从句1．______ has caused great confusion is ______ he made it without anyone else's help. A. What; that. B. What; how. C. It; how. D. It; that.【答案】 B【解析】【分析】句意：让人极大困惑的是他如何在没有别人帮助的情况下做到这一点的。

表示“让人困惑的事情”用what引导主语从句，表示“如何做到的”用how表方式，引导表语从句。

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

2．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful.A. That; whatB. What; whichC. It; whichD. 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。

3．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories.A. what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。

外研版英语必备英语名词性从句技巧全解及练习题(含答案)一、初中英语名词性从句1．It was never clear ________ the man hadn't reported the accident sooner.A. thatB. howC. whenD. why【答案】 D【解析】【分析】句意：这名男子没有早点报告这次事故的原因根本没有搞清楚。

It在句中是形式主语，真正的主语是why引导的主语从句。

故选D。

【点评】考查名词性从句，本题涉及why引导的主语从句。

2．Some people believe _______ has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. 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。

3．_______ are playing an important part is well known to us all.A. That whoB. Those whoC. Who thatD. Who【答案】 D【解析】【分析】考查主语从句。

句意：谁起着重要作用，这是众所周知的。

主语从句缺少引导词，从句缺少主语，故选D。

4．________ the weather will not clear up until next week is bad news for us.A. AsB. IfC. WhetherD. That【答案】 D【解析】【分析】考查主语从句。

（英语）英语名词性从句练习题20篇含解析一、初中英语名词性从句1． is known to all is that the earth is smaller than the sun.A. AsB. WhatC. ItD. 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。

2．___ surprised me most was ____the girl passed the driver test.A. That; thatB. What; howC. What; thatD. 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 clear to the members of the committee is that the President will not give in to their demands.A. WhoB. ItC. AsD. What【答案】 D【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。

that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。

名词性从句专项练习及答案解析概述名词性从句是由一个引导词引导的从句，充当名词的成分。

在英语中，名词性从句主要包括以下四种：主语从句、宾语从句、表语从句和同位语从句。

掌握名词性从句的用法对于提高英语写作和阅读能力至关重要。

本文将提供一些名词性从句的练习题，并附有详细的答案解析，帮助读者更好地掌握名词性从句的用法。

练习题题目一：选择最佳答案1.I don’t know ________. A. where does he live B. where he lives C. wherehe does live D. where lives he2.She is the girl ________ I met yesterday. A. who B. whom C. which D.whose3.________ is important to have a balanced diet. A. It B. What C. That D.This4.I am not sure ________. A. when will they arrive B. when they will arriveC. when did they arriveD. when do they arrive5.Can you tell me ________? A. how much is it B. how much it is C. howmany is it D. how many it is题目二：完成句子1.________ is necessary for you to practice English every day. (it)2.We didn’t know ________. (where)3.That is the reason ________. (why)4.Do you remember ________? (what)5.________ will go with you tomorrow. (who)题目三：改错1.I don’t know where does he live.2.She is the girl who I met yesterday.3.That is the reason that she was late.4.Can you tell me what time is it?5.I am not sure when did they arrive.答案解析题目一：选择最佳答案1. B. where he lives 解析：名词性从句作know的宾语，从句中用陈述句语序。

【英语】英语名词性从句练习及解析一、初中英语名词性从句1．_____Macao has achieved shows _____"one country, two systems" principle is the best solution to the Macao and Hongkong question, left by history.A. That; whatB. What; thatC. What; whatD. That; that 【答案】 B【解析】【分析】句意：澳门取得的成就表明，“一国两制”原则是解决历史遗留下来的澳门和香港问题的最好办法。

分析句子可知，_____Macao has achieved为主语从句，从句中achieve缺少宾语，所以第一个空用what来充当宾语。

再分析句子可知，shows后接宾语从句，从句句意和结构完成，所以第二个空应填连接词that。

故选B。

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

2．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others.A. it; thatB. what; thatC. that; whatD. which; that【答案】 C【解析】【分析】句意：虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行为对别人来说可能也不寻常。

第一空为宾语从句，从句结构完整用that起连接作用，第二空为主语从句，从句中consider缺少宾语，应该用what，故选C。

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

3．Has it been announced ______?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. 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。

（英语）英语名词性从句题20套(带答案)含解析一、初中英语名词性从句1．They lost their way in the forest, and ________ made matters worse was that night began to fall.A. thatB. itC. whatD. which【答案】 C【解析】【分析】句意：他们在森林里迷路了，更糟糕的是天开始黑了。

根据连词and可知，本句需要一个引导主语从句的连接词，该词同时还要能在从句里充当主语。

that不能在句中作成分；it不能引导主语从句；which意为“哪一个”，不符合本句语境。

排除A、B、D三项。

故选C。

【点评】考查名词性从句，本题涉及what引导的主语从句的应用。

2． is clear to the members of the committee is that the President will not give in to their demands.A. WhoB. ItC. AsD. What【答案】 D【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。

that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句。

3．Some people believe _______ has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. 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。

（英语）初中英语名词性从句题20套(带答案)含解析一、初中英语名词性从句1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply.A. thatB. howC. whatD. which【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。

分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．—Tell me something about your adventure in the rainforest, please.— We lost our way in the forest and ___ made matters worse was ___ night began to fall.A. what; thatB. it; thatC. it; becauseD. what; because【答案】 A【解析】【分析】考查名词性从句的连接词。

第一空what作主语从句的主语；第二空为表语从句的that。

3．It is a rule in his family that _______ comes home first should cook the dinner.A. anybodyB. whoC. whoeverD. who that【答案】 C【解析】【分析】句意：在他的家里有个规定，就是先到家的人要先做饭。

whoever 有两个词义：1no matter who，在这种用法时引导一个让步状语从句；2anybody that，在这种用法时，它连接一个名词性从句，在本题中它连接的是主语从句。

这里就是第二个用法。

【英语】英语名词性从句练习题含答案及解析一、初中英语名词性从句1．_________ is known to all is that the earth is smaller than the sun.A. AsB. WhatC. ItD. 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。

2．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others.A. it; thatB. what; thatC. that; whatD. which; that【答案】 C【解析】【分析】句意：虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行为对别人来说可能也不寻常。

第一空为宾语从句，从句结构完整用that起连接作用，第二空为主语从句，从句中consider缺少宾语，应该用what，故选C。

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

3．___ surprised me most was ____the girl passed the driver test.A. That; thatB. What; howC. What; thatD. 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。

英语名词性从句试题(有答案和解析)一、初中英语名词性从句1．________ 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 earthB. The sun and not the earthC. Being the sun and not the earthD. 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。

2．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties.A. As; whoseB. It; whoseC. As; whomD. 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 kno wn 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。

必备英语名词性从句技巧全解及练习题(含答案)及解析一、初中英语名词性从句1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply.A. thatB. howC. whatD. which【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。

分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question.A. focused; whetherB. focused; ifC. has focused; whetherD. has focused; if【答案】 C【解析】【分析】考查时态和主语从句。

根据In the past decade,在最近的几十年里，可知句子用现在完成时态，our education system是句子的主语，单数形式，所以第一空填has focused；第二空是主语从句做主语，if是否，不能引导主语从句，所以第二空填whether。

故选C。

【点评】主语从句主要有三类：1）（1）由连词that引导的主语从句:引导词that无含义,在句中不做成分,不可以省。

例如：That you will win the medal seems unlikely.你想获得奖牌看起来是不可能的。

（2）用连词whether 引导的主语从句:whether有含义（是否）,在句中不做成分,不可以省。

英语名词性从句练习题20篇及解析1.The fact that more than 90% of the students have been XXX.2.What surprised me the most was that the girl passed the driver test.3.Has it been announced when the planes are to take off?A。

XXX答案】A解析】【分析】句意：在他的家庭中有一个规定，谁先回家就要做饭。

whoever引导主语从句，在从句中作主语。

故选A。

点评】考查了名词性从句，本题涉及whoever引导的主语从句的应用。

8．—What do you think of the movie we saw last night?To be honest。

I don't think it is ___ you said it was.A。

that good asB。

as good asC。

as well asD。

well as答案】B解析】【分析】句意：你觉得我们昨晚看的电影怎么样？说实话，我不认为它像你说的那么好。

as good as表示“和……一样好”，符合题意。

故选B。

点评】考查了比较级的用法，本题涉及as。

as的应用。

9．—Do you know ___ the meeting is put off?No。

I have no idea.A。

XXX答案】B解析】【分析】句意：你知道会议推迟到什么时候吗？when表示“什么时候”，符合题意。

故选B。

点评】考查了特殊疑问词的用法，本题涉及when的应用。

10．___ you are going to the party or not。

please let me know in advance.A。

XXX答案】A解析】【分析】句意：无论你是否去参加聚会，请提前告诉我。

whether引导主语从句，作主语。

必备英语名词性从句完整归纳含答案解析一、初中英语名词性从句1．________ the weather will not clear up until next week is bad news for us.A. AsB. IfC. WhetherD. That【答案】 D【解析】【分析】考查主语从句。

句意：直到下周天气才放晴，这对我们来说是坏消息。

此处是that引导的主语从句，that无实义，只其引导作用，故答案为D。

【点评】主语从句属于名词性从句，在名词性从句中，that无实义，只起连接作用，不做句子成分；if/whether起连接作用，不做句子成分，有实义“是否”。

做题时注意看从句是否少成分。

2．It was he said disappointed me.A. that; whatB. what; thatC. that; whichD. which; that【答案】 B【解析】【分析】句意：正是他说的话让我很失望。

这是一个强调句型,"it is/was that..."是固定搭配,"what he said"是被强调部分, 你可以发现去掉"it was that"后, 句子仍然完整。

"what he said"做主语,主语从句中"said"缺宾语用what补足，故选B。

【点评】考查主语从句的强调形式。

3．_______ caused the accident has not been found out yet.A. WhatB. WhichC. The thingD. 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。

4．________ manners are very important in every country is known to all，but the trouble is that different countries have different ideas about ________ good manners are.A. That; whatB. That; thatC. What; thatD. What; what【答案】 A【解析】【分析】句意：众说周知，礼貌在每一个国家中都是非常重要的，但是麻烦是，不同的国家对于什么是良好的礼貌有着不同的认识。

名词性从句专项练习题及答案详解含答案解析一、初中英语名词性从句1．They lost their way in the forest, and ________ made matters worse was that night began to fall.A. itB. whichC. thatD. what【答案】 D【解析】【分析】句意：他们在森林里迷路了，情况更糟糕的是天又黑了。

本题中含有一个主语从句what made matters worse，其中的what引导起这个主语从句，同时在主语从句中做主语。

故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句的应用。

2．It was he said disappointed me.A. that; whatB. what; thatC. that; whichD. which; that【答案】 B【解析】【分析】句意：正是他说的话让我很失望。

这是一个强调句型,"it is/was that..."是固定搭配,"what he said"是被强调部分, 你可以发现去掉"it was that"后, 句子仍然完整。

"what he said"做主语,主语从句中"said"缺宾语用what补足，故选B。

【点评】考查主语从句的强调形式。

3．______ has caused great confusion is ______ he made it without anyone else's help. A. What; that. B. What; how. C. It; how. D. It; that.【答案】 B【解析】【分析】句意：让人极大困惑的是他如何在没有别人帮助的情况下做到这一点的。

表示“让人困惑的事情”用what引导主语从句，表示“如何做到的”用how表方式，引导表语从句。

（英语）英语名词性从句专项习题及答案解析一、初中英语名词性从句1．______ will be in charge of the meeting has not been decided yet.A. WhatB. WhichC. ThatD. 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．Some people believe _______ has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. 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。

3．_______ are playing an important part is well known to us all.A. That whoB. Those whoC. Who thatD. Who【答案】 D【解析】【分析】考查主语从句。

句意：谁起着重要作用，这是众所周知的。

主语从句缺少引导词，从句缺少主语，故选D。

4．Has it been announced ______?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. 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。

名词性从句精选题库与答案解析一、选择题1. "______ she will come to our party or not is still uncertain."A. ThatB. WhetherC. WhyD. What答案：B. Whether解析：该句中起连接作用的词引导的是一个名词性从句，表示一个选择或是某种不确定情况。

Whether在这里引导的是一个宾语从句，用来表示她是否会来参加我们的聚会。

2. "I don't know ______ he is going to do with the money."A. whenB. whyC. whereD. what答案：D. what解析：该句中的名词性从句作为宾语补足语出现，用来补充说明主语"I"不知道的是关于金钱的具体事项，所以应使用连接词"what"。

3. "______ really matters is your attitude towards life."A. WhatB. ThatC. WhetherD. How答案：A. What解析：该句中的名词性从句作为主语出现，用来说明真正重要的是什么。

"What"在这里引导的是一个主语从句。

4. "Please tell me _______ you need any help."A. whileB. whetherC. howD. where答案：B. whether解析：该句中的名词性从句作为宾语出现，用来询问对方是否需要帮助。

Whether在这里引导的是一个宾语从句。

5. "I have no idea _______ he will arrive."A. whenB. whyC. whereD. what答案：A. when解析：该句中的名词性从句作为宾语补足语出现，用来说明主语"I"不知道的是他什么时候会到达。

（英语）初中英语名词性从句试题(有答案和解析)含解析一、初中英语名词性从句1．_______ caused the accident has not been found out yet.A. WhatB. WhichC. The thingD. 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。

2．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories.A. what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。

本句时一个主语从句，it作形式主语，真正的主语为that what plays a vital role in driving away one's anxiety is one's sweet childhood memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。

故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句。

3．___ surprised me most was ____the girl passed the driver test.A. That; thatB. What; howC. What; thatD. 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。

必备英语名词性从句专项练习(附答案)含答案解析一、初中英语名词性从句1．____ he will offer us enough help doesn't matter a lot to our success.A. IfB. WhetherC. BeforeD. 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。

2．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful.A. That; whatB. What; whichC. It; whichD. 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。

3．______excited Jenny most was ______ she finally succeeded in ______seemed to be the most difficult exam to him.A. That; that; whichB. What; that; whatC. That; because; thatD. What; because; which 【答案】 B【解析】【分析】句意：珍妮最兴奋的是对他来说似乎是最困难的考试，她终于成功了。

【英语】英语名词性从句练习题及答案及解析一、初中英语名词性从句1．______ will be in charge of the meeting has not been decided yet.A. WhatB. WhichC. ThatD. 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．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories.A. what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。

本句时一个主语从句，it作形式主语，真正的主语为that what plays a vital role in driving away one's anxiety is one's sweet childhood memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。

故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句。

3． is clear to the members of the committee is that the President will not give in to their demands.A. WhoB. ItC. AsD. What【答案】 D【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。