【英语】英语名词性从句解题技巧讲解及练习题(含答案)一、初中英语名词性从句1._______ makes me feel worried is _______ singing stars are centered on by masses of teenagers 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。
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 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。
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。
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。
4. 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。
5._______ 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。
6.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。
例如:Whether she is coming or not doesn't matter too much.她来不来都无关紧要。
注意:if不能引导主语从句。
2)用连接代词引导的主语从句(在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中,其连接代词在句中起名词性作用,担当一定成分).例如:What you need is more practice.你所需要的是更多的训练。
3)用连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。
)例如:Where we should leave it is a problem.7.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。
8.____ 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。
9.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。
所以选C。
10._______ you don't like him is none of my business.A. WhatB. WhoC. ThatD. Whether【答案】 C【解析】【分析】句意:你不喜欢他,跟我没有什么关系。
you don't like him为主语从句,其内容已经是完整的,所以用that,且引导主语从句的that不能省略。
11.________ 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。
12.________ 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。
13.______ 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。
14. 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。