复习专题名词性从句专题练习一、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．_____ 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。

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。

4．___ 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。

5． 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。

6．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。

7．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】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。

AC两项不能引导主语从句，which在引导名词性从句的时候总是含有疑问的语义，而本句中并没有疑问的语义。

句意：他们在森林里迷路了，情况更糟糕的是天又黑了。

故D正确。

8．________ 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。

9．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。

10．—What impresses you most when you visit the Acropolis ?— ________ it is that has brought the grand palace into today's terrible scene.A. WhereB. WhatC. HowD. When【答案】 B【解析】【分析】句意：——当你参观雅典卫城时，你印象最深的是什么？——使我印象最深的是什么将从前宏伟的宫殿变成了今天惨不忍睹的样子。

强调句型的特殊疑问句式：疑问词（如what） is it that+其它，本句强调的是什么使得从前宏伟的宫殿蜕变的，所以用表示内容的what，选B【点评】考查主语从句和强调句，本题强调主语从句的引导词。

11．_______ has not been decided next.A. How to doB. What to do nextC. To do whatD. To do how【答案】 B【解析】【分析】句意：接下来做什么还没有决定。

根据助动词has可知前面是主语，what to do为名词性从句，可做主语，故选B。

【点评】考查名词性从句，识记名词性从句做主语的用法。

12．______ 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。

13． is obviously right is to give all children equal opportunities to develop their special gift.A. WhichB. AsC. ThatD. 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。

14．I know he's been curious about everything, but that's . Be patient!A. what do kids likeB. what kids likeC. what are kids likeD. what kids are like【答案】 D【解析】【分析】句意：我知道他对每件事都充满好奇, 但这是小孩的样子。

要有耐心。

由题意知：That’s后跟的是一个表语从句, 从句要用陈述句语序, 所以A、C错了．B：what kids like 那是孩子喜欢的东西；D：what kids are like那是小孩的样子．like, 动词, 表示喜欢, 有时态变化形式；be like表示像, like是介词, like没有词形变化．对一切充满好奇是小孩的行为, 故选D。

【点评】表语从句。

15．Don't wait for people to be friendly, show them a friendly person you are.A. whatB. howC. whenD. where【答案】 A【解析】【分析】句意：不要等到人们表现友好，要向他们展示你有多么友好。

感叹句式：What+a+adj+n+主语+谓语。

故选A。

【点评】考查感叹句用作宾语从句。

16．You have spent too much time playing computer games.That's________ your eyes hurt.A. whyB. howC. whatD. when【答案】 A【解析】【分析】句意：你已经花了太多的时间玩电脑游戏。