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名词性从句易错题(1)

名词性从句易错题(1)一、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.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。

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。

4.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。

5. is even more important is the earth cooled down, water began to appear on its surface.A. When; that; whenB. What; whether; asC. What; that; asD. 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.Located between the 16th and the 18th floor, ______ I call my “home” is more like a “bird's nest”.A. whichB. thatC. whatD. where【答案】 C【解析】【分析】考查主语从句。

What引导主语从句______ I call my “home”且 What在从句中充当call的宾语。

故选C。

7.____ 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。

8.________ we may find interesting is that it usually takes more to be polite.A. ThatB. WhatC. WhichD. /【答案】 B【解析】【分析】句意:我们可能会发现有趣的是通常需要更多的礼貌。

此处是主语从句做主语,从句没有引导词,缺少宾语,故答案为B。

【点评】考查名词性从句,本题涉及what引导的主语从句的应用。

9.______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.A. WhichB. WhatC. ItD. As【答案】 C【解析】【分析】句意:医疗保健的进步将促进一个更强大、更繁荣的经济,这是我们的信念。

that引导的是主语从句,故空格处应该用it作形式主语,代替真正的that引导的主语从句。

故答案选C。

【点评】考查it的用法,以及主语从句的应用。

10.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。

11.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。

12.Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565.A. whetherB. whenC. whyD. how【答案】 B【解析】【分析】句意:土豆被引进欧洲具体的事件不被确定,但是可能是在1565年左右。

根据时间状语round 1565得知这里是指时间不确定。

故选B。

【点评】考查名词性从句,本题涉及when引导的主语从句。

13._______ makes me feel worried is _______ singing stars are centered on by masses ofteenagers today.A. What; whatB. That; thatC. What; thatD. That; what【答案】 C【解析】【分析】句意:让我感到担忧的是,今天的歌星是以青少年为中心的。

分析句子可知,主语从句中的谓语动词makes 缺少主语,主语从句中缺少宾语一般用what,因此选择 what 来引导主语从句;系动词 is 后面的表语从句句意完整,不缺少成分,因此选择 that 引导表语从句。

分析选项可知C项符合题意,故选C。

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

14.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。

15.________ 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。

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