2025-2025 年名词性从句知识点(大全)1一、名词性从句1 ． is obviously right is to give all children equal opportunities to develop their special gift. A. Which B. As C. That D. What【答案】 D 【解析】【分析】句意：明显正确的做法就是给所有的孩子提供平等进展特别才能的机会连接词引导一个主语从句，并在主语从句中做句子的主语，故选 D。 【点评】考查名词性从句，本题涉及 what 引导的主语从句。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．Has it been announced ______? A. when are the planes to take off B. that are the planes to take offC. where are the planes to take off D. when the planes are to take off【答案】 D 【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗？此处是 when 引导的主语从句，且要用陈述句语序，故选 D。【点评】考查名词性从句，it 作形式主语，关系副词 when 引导的从句作真正的主语。4．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; whether B. focused; if C. has focused; whether D. 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。（...
