【英语】名词性从句综合分类解析

【英语】名词性从句综合分类解析【英语】名词性从句综合分类解析 一、名词性从句一、名词性从句 1．________ is the centre of our planetary system was a difficult concept to grasp in the Middle Ages. A. Its the sun and not the earth B. The sun and not the earth C. Being the sun and not the earth D. That the sun and not the earth 【答案】 D 【解析】【分析】句意太阳而不是地球是我们行星系统的中心，这在中世纪是一个很难 理解的概念。分析句子可知，整个句子为主系表结构，was 为系动词，它之前的都为主 语，且主语由句子来充当，句子结构以及句意完整，所以连词代词为that。故选 D。 【点评】考查名词性从句，本题涉及that 引导的主语从句。 2．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others. A. it; thatB. what; thatC. that; whatD. which; that 【答案】 C 【解析】【分析】句意虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行 为对别人来说可能也不寻常。第一空为宾语从句，从句结构完整用 that 起连接作用，第二 空为主语从句，从句中 consider 缺少宾语，应该用what，故选 C。 【点评】考查名词性从句，本题涉及that 引导的宾语从句和 what 引导的主语从句。 3．It has been pointed out ________ plays a vital role in driving away ones anxiety is ones 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 ones anxiety is ones 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。 4． is clear to the members of the committee is that the President will not give in to their demands. A. WhoB. ItC. AsD. What 【答案】 D 【解析】 【分析】句意委员会成员清楚的是，总统不会向他们的要求让步。that the President will not give in to their demands. 这个句子作表语； is clear to the members of the committee 这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it 是代 词，不是了；连接词，故排除 B；as 作主语时，是在定语从句中，故排除 C；who 指人， 根据表语指的事情，不是人，故排除 A；what 在主语从句中可以作主语或宾语，指事，符 合句意，故选 D。 【点评】考查名词性从句，本题涉及what 引导的主语从句。 5． 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。 6．_______ are playing an important part is well known to us all. A. That who B. Those who C. Who that D. Who 【答案】 D 【解析】【分析】考查主语从句。句意谁起着重要作用，这是众所周知的。主语从句缺 少引导词，从句缺少主语，故选D。 7．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。（2）用连 词 whether 引导的主语从句whether 有含义（是否）,在句中不做成分,不可以省。例如 Whether she is coming or not doesnt matter too much.她来不来都无关紧要。注意if 不能引 导主语从句。 2）用连接代词引导的主语从句（在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担