名词性从句专项复习（word）1一、名词性从句1 ． is known to all is that the earth is smaller than the sun. A. As B. What C. It D. 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。2．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories. A. what that B. which C. that D. 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．___ surprised me most was ____the girl passed the driver test. A. That; that B. What; how C. What; that D. That; why【答案】 C 【解析】【分析】句意：最让我吃惊的是那个女孩通过了驾驶考试。 ___ surprised me most 是一个主语从句，从句中缺少主语，故填 what； ____the girl passed the driver test是一个表语从句，句中不缺少成分，故填 that。因此选 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。4．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. 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...
