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1、名词性从句专题（含答案）一、名词性从句1. Exactly the potato was introduced into Europe is uncertain, but it was probablyaround 1565.A. whetherB. whenC. whyD. 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。2.is clear to the members of the committee is th
2、at 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 thePresident will not give in to their demands.这个句子作表语； _is clear to the members of thecommittee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
3、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Do【点评】考查名词性从句，本题涉及what引导的主语从句。3. is known to us all that the old scientist, for life was hard in the past, stillworks hard in his eighties.A. As; whoseB. It; whoseC. As; whomD. 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 t o us
4、all that是个固定句型，意为 於所周知”；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引导的限制性定语从句。4. is even more important is the earth cooled down, water began to appear on itssurface.A. When; that; whenB. What; whether; asC. What; tha
5、t; asD. 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 a5. are playing an important part is well known to us all.A. That whoB. Those whoC. Who thatD. 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
6、 Do6. Has it been announced?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. 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Do【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。7. In the past decade, our educati
7、on 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hasfo
8、cused ；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 doesn't matter too much. 她来不来都无关紧要。注意： i
9、f 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 当一定成分）.例如： What you need is more practice.你所需要的是更多的训练。3）用连接副词 when, where, why, how引导的名词性从句（其连接副词有含义，在句中作状语。） 例如： Where we should leave it is a problem.8. - _ made her as
10、hamed of herself?-_ the lowest mark in her class.A. What; Because she gotB. Was it what; GettingC. What was it that; That she gotD. What was it that; Get【答案】C【解析】【分析】句意：是什么让她对她自己感到羞愧？一一是她获得了她班上的最低分让她惭愧。A中的what是句子的主语，但是 because引导的从句不作主语，是原因状 语从句，故排除；B的第一空是错误形式，故排除；C D两项的第一个选项是一样的，说明第一个题干是一个强调句型，特殊疑问句
11、下的强调句型，有 what引导；第二个空是对 what 的回答，因为 what 是上一句的主语，That she got the lowest mark in her class 是从句，可以作主语；而 D项白g get是动词原形，不能作主语，故答案为Q【点评】考查强调句型的使用和对特殊疑问句的回答，注意问什么回答什么，也就是说疑 问词what是句子的主语，回答的内容也需要在句子中能作主语。9. Located between the 16th and the 18th floor,I call my" home" is more like aA. whichB. that
12、C. whatD. where【答案】C【解析】【分析】考查主语从句。What引导主语从句 I call my"homie' What在从句中充当call的宾语。故选C。10. made me more unhappy was the boy asked my friend to be his girlfriend and sheagreed.A. What; thatB. That ; thatC. What; whetherD. It; that【答案】A【解析】【分析】句意：让我更不高兴的是那个男孩要求我的朋友做他的女友，她同意了。第一空填 what,它一方面在句子中引
13、导主语从句，另一方面又在主语从句中作主语；第二空用that引导表语从句且从句中不缺成分，表示对前面情况的说明。故选Ao【点评】考查了名词性从句，本题涉及what引导的主语从句以及 that引导的表语从句。11. you don't like him is none of my business.A. WhatB. WhoC. ThatD. 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。12. amazed the NBA wo
14、rld is Kobe Bryant scored 81 points just in one game.A. That, whatB. What, thatC. That, thatD. What, what【答案】B【解析】【分析】句意：使 NBA世界惊讶的是 Kobe Bryant在一场比赛中得了 81分。根据 句意可知，句子主语是一个主语从句，引导词即起引导作用又要做从句的一个成分，所以 第一空填 What;第二空是that引导的表语从句，只起引导作用，故选Bo【点评】考查名词性从句，本题涉及关系代词what引导的主语从句和表语从句的应用。13. we may find interes
15、ting is that it usually takes more to be polite.A. ThatB. WhatC. WhichD. /【答案】B【解析】【分析】句意：我们可能会发现有趣的是通常需要更多的礼貌。此处是主语从句做主语，从句没有引导词，缺少宾语，故答案为B。【点评】考查名词性从句，本题涉及what引导的主语从句的应用。14. It was_ he said_ disappointed me.A. that; whatB. what; thatC. that; whichD. 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,
16、"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。15. They lost their way in the forest, and made matters worse was that night began tofall.A. itB. whichC. thatD. what【答案
17、】D【解析】【分析】句意：他们在森林里迷路了，情况更糟糕的是天又黑了。本题中含有一个主语从句 what made matters worse ,其中的 what引导起这个主语从句，同时在主语从句 中做主语。故选Do【点评】考查名词性从句，本题涉及what引导的主语从句的应用。16. I found convenient to shop on line at home.A. it'sB. thatC. itD. that was【答案】C【解析】【分析】句意：我发现在家网购和方便。固定句式：主 +find+it+adj+to do ,主语发 现做某事是的，故选Co【点评】考查it做形式宾
18、语，熟练掌握固定句式：主 +find+it+adj+to do。17. makes me feel worried is singing stars are centered on by masses ofteenagers today.A. What; whatB. That; thatC. What; thatD. That; what【答案】C【解析】【分析】句意：让我感到担忧的是，今天的歌星是以青少年为中心的。分析句子可知，主语从句中的谓语动词 makes缺少主语，主语从句中缺少宾语一般用what,因此选择what来引导主语从句；系动词 is后面的表语从句句意完整，不缺少成分，因此选择
19、 that 引导表语从句。分析选项可知 C项符合题意，故选 Q【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句的应用。18. makes the school proud is more than 90% of the students have been admitted to universities.A. what; becauseB. that; becauseC. that; whatD. 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
20、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。19. is known to us all is that Johnson broke his promise he would come to helpme as soon as possible.A. It; thatB. What; thatC. As; whichD. What; which【答案】B【解析】【分析】句意：我们都知道，Johnson违背了他会尽快来帮助我的诺言。分析句子结构可知，第一空为主语从句，从句中缺少主语，所以用 what,第二空为
21、同位语从句， 从句结构完整，所以用 that解释promise的内容，故选B。【点评】考查名词性从句，本题涉及主语从句和同位语从句。20. caused the accident has not been found out yet.A. WhatB. WhichC. The thingD. That【答案】A【解析】【分析】句意：造成事故的原因还没有查明。此处为主语从句，从句中缺少主语，应该用what引导，故答案为 Ao【点评】考查主语从句。以及 what的含义。21. What impresses you most when you visit the Acropolis ?一 it is
22、 that has brought the grand palace into today's terrible scene.A. WhereB. WhatC. HowD. When【答案】B【解析】【分析】句意：一一当你参观雅典卫城时，你印象最深的是什么？一一使我印象最深的是什么将从前宏伟的宫殿变成了今天惨不忍睹的样子。强调句型的特殊疑问句式： 疑问词（如what） is it that+其它，本句强调的是什么使得从前宏伟的宫殿蜕变的，所以用 表示内容的what ,选B【点评】考查主语从句和强调句，本题强调主语从句的引导词。22. will be in charge of the m
23、eeting has not been decided yet.A. WhatB. WhichC. ThatD. Who【答案】D【解析】【分析】句意：谁将负责这次会议还没有决定。 will be in charge of the meeting是一个主语从句，从句中缺少主语，指人，故选 D。【点评】考查名词性从句，本题涉及who引导的主语从句。23. We believe you have been devoted to naturally of great necessity.A. that; beingB. all that; beC. that all; areD. what; is【
24、答案】D【解析】【分析】句意：我们相信你所投入的当然是非常必要的。分析句子可知，believe后接宾语从句，宾语从句中 you have been devoted to 缺少宾语，表示事物故用 what; what you have been devoted to为主语，从句作主语，谓语动词用单数，故选D。【点评】考查名词性从句和主谓一致，本题涉及what引导的主语从句和一般现在时。24. Let's send him home. Do you know?I have no idea.A. where does he live B. where he lives C. he where
25、 lives D. he lives where 【答案】B【解析】【分析】句意：-让我们把他送回家。你知道他住在哪里吗？-我不知道。宾语从句就是一个句子作动词或介词的宾语。宾语从句由特殊疑问句变来就用原来的疑问词作引导。在宾语从句中只能使用陈述句语序，不能用疑问句语序。所以选 Bo25. I know he's been curious about everything, but that's 尸e patient!A. what do kids like B. what kids like C. what are kids like D. what kids are lik
26、e【答案】D【解析】【分析】句意：我知道他对一切充满好奇，但那是小孩的样子。耐心点儿。That's后跟的是一个表语从句，从句要用陈述句语序，所以 A,C错了 B. what kids like那是孩子喜 欢的东西，D. what kids are like那是小孩的样子.对一切充满好奇是小孩的行为，故选 D like,动词，表示喜欢，有时态变化形式;be like表示像，like是介词，like没有词形变化。这是中考的常考点。26. Don't wait for people to be friendly, show them a friendly person you are
27、.A. whatB. howC. whenD. where【答案】A【解析】【分析】句意：不要等到人们表现友好，要向他们展示你有多么友好。感叹句式：What+a+adj+n+主语+谓语。故选 A。【点评】考查感叹句用作宾语从句。27. The school library is we can read many books and magazines.A. whatB. whereC. whenD. which【答案】B 【解析】 【分析】句意：学校图书馆是我们能够看书看杂志的地方。What （什么），where （哪里）, when （什么时候）which （哪个）。 we can read
28、 many books andmagazines修饰主语，是一个表语从句。图书馆是一个地方，连接词用where。故选B。【点评】考查表语从句的连词。28. I'll have a ten-day holiday. But I don't know.How about Paris?A. when to goB. where to goC. what to do【答案】B我将有10天的假。但是我不知道去哪里?巴黎如何?【解析】【分析】句意：A.when to go什么时候去，B.where to go去哪里，C.what to do做什么。根据后文提到去巴 黎，可知是对地点提问，用
29、 where,填入where to go ,故选B。【点评】考查名词从句，注意 where to go的用法。29. The question new measures should be taken to control the terrible air pollutionis puzzles scientists a lot.A. that; whatB. which; thatC. what; whatD. that; that【答案】C【解析】【分析】句意为：应该采取什么样的新措施来控制空气污染的问题，是让科学家非常困惑的事情。第一空根据主语question ,可知措施并不明确，应该指
30、 什么样的newmeasures'；关系词应用what;第二空，be动词is后的表语从句缺少主语，应用关系词what,故选 Co【点评】考查同位语从句。注意 that引导同住语从句时，在句中不做成分，也没有词义。30. is our belief that improvements in health care will lead to a stronger, more prosperous economy.A. WhichB. WhatC. ItD. 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 Co【点评】考查it的用法，以及主语从句的应用。