必备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．Located between the 16th and the 18th floor, ______ I call my “home” is more like a “bird's nest”.
A. which
B. that
C. what
D. 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。
2．It was he said disappointed me.
A. that; what
B. what; that
C. that; which
D. 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。
3．________ 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。
4．______ makes the school proud is ______ more than 90% of the students have been admitted to universities.
A. what; because
B. that; because
C. that; what
D. what; that
【答案】 D
【解析】【分析】句意：让学校骄傲的是，超过90%的学生被重点大学所录取。第一空主语从句中缺少主语，指代事情，故用what;第二空为表语从句，且从句中不缺少成分，故
填关系词that。故选D。
【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．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。
6．It matters little ______ a man dies, but _____ matters much is ______ he lives.
A. how; what; how
B. how; it; how
C. why; it; why
D. that; what; that 【答案】 A
【解析】【分析】句意：一个人如何死去并不重要，重要的是他如何生活。it为形式主语，how从句为真正的主语。What matters much （=the thing that matters much）。第一个how引导的是一个主语从句；it作形式主语；what引导的是主语从句；第二个how引导的是表语从句。故选A。
【点评】考查名词性从句，本题涉及主语从句和表语从句的应用。
7．____________ matters most in learning English is enough practice.
A. Why
B. That
C. Which
D. What
【答案】 D
【解析】【分析】句意：学习英语中最重要的是有足够的练习。A. why为什么；B. that引导名词性从句只起引导词作用，不充当成分；C. which哪一个；D. What什么。根据语境用what引导主语从句，并在句中做主语。故答案选D。
【点评】考查主语从句的引导词。主语从句属于名词性从句的一种，填哪个连接词要分析从句缺少什么成分，然后确定所选的词。
8．They lost their way in the forest, and ________ made matters worse was that night began to fall.
A. that
B. it
C. what
D. 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、
