人教版中考英语专项训练名词性从句专项讲解及练习
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 even more important is the earth cooled down, water began to appear on its surface.
A. When; that; when
B. What; whether; as
C. What; that; as
D. 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。
3．—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; that
B. it; that
C. it; because
D. 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。
4．It is a rule in his family that _______ comes home first should cook the dinner.
A. anybody
B. who
C. whoever
D. 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。
5．_______ you don't like him is none of my business.
A. What
B. Who
C. That
D. 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。
6．______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
A. Which
B. What
C. It
D. 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。
7．Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565.
A. whether
B. when
C. why
D. 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。
8．________ 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; what
B. That; that
C. What; that
D. 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。
