【初中英语】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.________ has been proved is that animals and insects have their own languages.A. WhatB. AsC. ItD. 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。
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._______is known to us all is that Johnson broke his promise ______ he would come to help me as soon as possible.A. It; thatB. What; thatC. As; whichD. What; which【答案】 B【解析】【分析】句意:我们都知道,Johnson违背了他会尽快来帮助我的诺言。
分析句子结构可知,第一空为主语从句,从句中缺少主语,所以用what,第二空为同位语从句,从句结构完整,所以用that解释promise的内容,故选B。
【点评】考查名词性从句,本题涉及主语从句和同位语从句。
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。
逗号前有两个谓语动词,一个是are,一个是is known,故是两句话,需填连词连接这两句话,根据句意可知,前面是主语从句,故填that,此处的that,只起连接作用不作任何成分。
about是介词,其后是个句子故应填连词把这两句话连接起来,所缺词作are的表语,故填what。
因此选A。
【点评】考查名词性从句,本题涉及that引导的主语从句和what引导的宾语从句。
5.______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。
______excited Jenny most是主语从句,从句中缺少主语,因此用关系代词what ;_____ she finally succeeded in ...是表语从句,从句中不缺少成分,因此用引导词that;______seemed to be the most difficult exam to him.是宾语从句,从句中缺少主语,因此用关系代词what ,故选B。
【点评】考查名词性从句,本题涉及主语从句,表语从句和宾语从句。
6.________ his failure lies is expected ________ clear to us.A. What… to makeB. How… madeC. Where… to be madeD. Why… making【答案】C【解析】【分析】句意:他的失败之处有可能被我们弄清楚。
分析句子可知,主语从句中的lie为不及物动词,所以主句中缺少状语,因此填where。
expect sth.to do.固定短语,“期望某事发生”,sth. be expected to do.意为”某事有可能发生“。
make sth. clear to sb为固定搭配,意为“向某人阐明某事,使某人弄清某事”。
本句中make的宾语是where his failure lies 是被弄清楚,要用动词不定式的被动形式。
因此选C。
【点评】考查名词性从句及固定搭配,本题涉及主语从句和固定短语expect sth.to do. 7._______ is troubling me is ______ I don't understand ________ he saidA. What; that; whatB. What; what; whatC. That; that; whatD. Why; that; which 【答案】 A【解析】【分析】句意:我烦恼的是我不明白他说的话。
第一空是主语从句,从句中缺主语,要用What;第二空是表语从句,从句不缺成分,所以要填that;第三空是宾语从句,从句中的动词understand缺宾语,要填what。
故选A。
【点评】考查名词性从句,本题涉及主语从句,表语从句和宾语从句的应用。
8.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。
9.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。
10.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。
11. 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。
12.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。
13.________ 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。
14.________ 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。
15.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。