名词性从句章节知识点总结及练习测试题经典
名词性从句章节知识点总结及练习测试题经典
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，地球比太阳还小。复合句的主语是一个名词性从句，从句没有引导词和主语，表示“所……的（事）”，故用what引导，其双重作用，故选B。【点评】考查名词性从句，本题涉及what引导的主语从句。
2．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful.
A. That; what
B. What; which
C. It; which
D. As; that
【答案】 B
【解析】【分析】句意：众所周知，中国已经发射了神州7号宇宙飞船，这是中国首次成功的太空行走。第一空处为主语从句，从句缺少主语，需用what引导；第二空所在句子是个定语从句，先行词为整个主句的内容，从句中缺少主语，需用which引导。故选B。【点评】考查名词性从句和定语从句，本题涉及主语从句和非限制性定语从句的应用。
3．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。
4．___ 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。
5． is clear to the members of the committee is that the President will not give in to their demands.
A. Who
B. It
C. As
D. 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。
6．________ 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引导的限制性定语从句。
7．Some people believe _______ has happened before or is happening now will repeat itself in the future.
A. whatever
B. whenever
C. wherever
D. no matter what
【答案】 A
【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。
【点评】考查名词性从句，本题涉及"特殊疑问词+ever"引导的主语从句。
8．--- made her ashamed of herself?
--- the lowest mark in her class.
A. What; Because she got
B. Was it what; Getting
C. What was it that; That she got
D. 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？——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项的get是动词原形，不能作主语，故答案为C。
【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．________ the weather will not clear up until next week is bad news for us.
A. As
B. If
C. Whether
D. That
【答案】 D
【解析】【分析】考查主语从句。句意：直到下周天气才放晴，这对我们来说是坏消息。此处是that引导的主语从句，that无实义，只其引导作用，故答案为D。
【点评】主语从句属于名词性从句，在名词性从句中，that无实义，只起连接作用，不做句子成分；if/whether起连接作用，不做句子成分，有实义“是否”。做题时注意看从句是否少成分。
10．________ has been proved is that animals and insects have their own languages.
A. What
B. As
C. It
D. That
【答案】 A
【解析】【分析】句意：已被证明的是动物和昆虫有自己的语言。根据is判断，此处为主语从句，分析该从句，缺少主语，用what。选A。
【点评】考查名词性从句，本题涉及what引导的主语从句的应用。
11．______ 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。
12．________ 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。
13．_______ caused the accident has not been found out yet.
A. What
B. Which
C. The thing
D. 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A。
【点评】考查主语从句。以及what的含义。
14．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。
15．______ will be in charge of the meeting has not been decided yet.
A. What
B. Which
C. That
D. 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。
16．I found _______ convenient to shop on line at home.
A. it's
B. that
C. it
D. 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C。
【点评】考查it做形式宾语，熟练掌握固定句式：主+find+it+adj+to do。
17．______ has caused great confusion is ______ he made it without anyone else's help.
A. What; that.
B. What; how.
C. It; how.
D. It; that.
【答案】 B
【解析】【分析】句意：让人极大困惑的是他如何在没有别人帮助的情况下做到这一点的。表示“让人困惑的事情”用what引导主语从句，表示“如何做到的”用how表方式，引导
表语从句。故选B.
【点评】考查名词性从句，本题涉及what引导的主语从句和how引导的表语从句。
18． 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发展特殊才能的机会。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。
19．It is clever ______ you ______ out the problem.
A. for; to work
B. of; working
C. for; working
D. of; to work
【答案】D
【解析】【分析】it可指代下文内容做形式主语，其主要有两种形式：1、It's + 形容词 + of + sb + to do sth.这个句型，形容词一般为sb的所具有的一种品质性格。2、It's + 形容词+ for + sb + to do sth.这个句型,形容词不是sb所具备的品质性格。句意：能算出这道难题，你
真是太聪明了。结合语境可知选D。
【点评】it是人称代词,在句子中可以做形式主语,形式宾语,这是经常考察的内容,平时应注
意总结,加强练习.
20．I wonder .
A. how will you celebrate Thanksgiving
B. that the Water Festival is really fun.
C. what do people eat on the Mid-Autumn Festival
D. whether you will make resolution on New Year's Day
【答案】 D
【解析】【分析】句意：我想知道你是否将在新年做决定。A. how will you celebrate Thanksgiving你要怎样庆祝感恩节；B. that the Water Festival is really fun. 泼水节真的有趣；C. what do people eat on the Mid-Autumn Festival中秋节人们叫什么？D. whether you will make resolution on New Year's Day你是否会在新年做决定。Wonder后跟的是宾语从句，宾
语从句要用陈述语序。A，C错了。Wonder：对……感到疑惑，想知道，后常跟一个含有“疑问”意义的宾语从句，B错。故选D。
21． ---- Let's send him home. Do you know _________?
---- I have no idea.
A. where does he live
B. where he lives
C. he where 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B。
22．Franklin told them all to be in Britain again.
A. how happy was he
B. how happy he was
C. how was he happy
D. how he happy was
【答案】 B
【解析】【分析】句意：富兰克林告诉他们所有人他再一次来到英国是多么的开心。该句中有一个宾语从句做told的宾语，“他有多么开心”，这里是感叹句做的宾语，感叹词how+形容词+主语+谓语。故选B。
23．I know he's been curious about everything, but that's . Be patient!
A. what do kids like
B. what kids like
C. what are kids like
D. what kids are like
【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。
24．—Hey,you look worried. What's up?—I'm not sure__________
A. that can I pass the exam or not
B. If I can pass the exam or not
C. Whether I can pass the exam or not
【答案】C
【解析】【分析】句意：-嗨，你看起来很担心，怎么了？-我不确定我是否能通过这场考试。“Whether……or not”属固定搭配，意为是否……其余连接词无用法。故选C。
【点评】考查Whether引导的名词性从句。
25．Pay no attention to those who laugh at you. What matters most is ________ you see yourself.
A. what
B. when
C. how
D. which
【答案】 C
【解析】【分析】句意：不要在意那些嘲笑你的人，最重要的是你如何看待你自己。本题考查表语从句，A.什么；B.当……时候；C.怎样；D.哪一个。根据句意，翻译成“如何”。故选C。
【点评】考查how引导的表语从句。
26． breaks the school windows will be in for trouble.
A. Whoever
B. Who
C. Which
D. Whose
【答案】 A
【解析】【分析】句意：无论谁打破学校的窗户都会有麻烦的。A. Whoever无论谁，任何人，指人；B. Who 谁；指人C. Which哪一个，指物D. Whose谁的，引导句中时后面常跟所修饰的名词，根据句中结构此处缺少主语，指人，whoever放在句中句子才通顺，who 放在句中句子翻译不通，故选A。
【点评】此题考查名词从句的引导词辨析。注意根据句子结构和句意确定所选的引导词。
27．—I fell sick!
—I think it is _______ you are doing too much.
A. why
B. when
C. what
D. because
【答案】 D
【解析】【分析】句意：——我感觉不舒服。——我认为这是因为你一直做得太多。A.为什么；B.什么时候；C.什么；D.因为。做得太多是不舒服的原因，所以用because连接，故选D。
【点评】考查表语从句，注意理解句意。
28．Is this school they visited the other day?
A. that
B. which
C. where
D. the one
【答案】 D
【解析】【分析】句意：这就是几天前他们参观的那间学校吗？根据 Is this school they visited the other day? ，可知主句中缺表语，应用the one指代this school；再根据they visited the other day? ，可知在the one后边紧跟的是that引导的定语从句，that句中做visit的宾语故省略。故选D。
【点评】考查表语从句和定语从句。注意关系词that在从句中做宾语时可省略。
29．_______ has not been decided next.
A. How to do
B. What to do next
C. To do what
D. To do how
【答案】 B
【解析】【分析】句意：接下来做什么还没有决定。根据助动词has可知前面是主语，what to do为名词性从句，可做主语，故选B。
【点评】考查名词性从句，识记名词性从句做主语的用法。
30． 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。
【英语】名词性从句知识点总结和题型总结
【英语】名词性从句知识点总结和题型总结 一、名词性从句 1．______ will be in charge of the meeting has not been decided yet. A. What B. Which C. That D. 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。 2．___ 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。 3．________ 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引导的限制性定语从句。 4． 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。 5．Has it been announced ______?
解三角形知识点归纳总结
第一章 解三角形 一.正弦定理： 1.正弦定理：在一个三角形中，各边和它所对角的正弦的比相等，并且都等于外 接圆的直径，即 R C c B b A a 2sin sin sin ===（其中R 是三角形外接圆的半径） 2.变形：1）sin sin sin sin sin sin a b c a b c C C ++=== A + B +A B ． 2）化边为角： C B A c b a sin :sin :sin ::=； ;sin sin B A b a = ;sin sin C B c b = ;sin sin C A c a = 3）化边为角：C R c B R b A R a sin 2,sin 2,sin 2=== 4）化角为边： ;sin sin b a B A = ;sin sin c b C B =;sin sin c a C A = 5）化角为边： R c C R b B R a A 2sin ,2sin ,2sin = == 3. 利用正弦定理可以解决下列两类三角形的问题： 4. ①已知两个角及任意—边，求其他两边和另一角； 例：已知角B,C,a ， 解法：由A+B+C=180o ，求角A,由正弦定理 ;sin sin B A b a = ;sin sin C B c b = ;sin sin C A c a =求出b 与c ②已知两边和其中—边的对角，求其他两个角及另一边。 例：已知边a,b,A, 解法：由正弦定理B A b a sin sin =求出角B,由A+B+C=180o 求出角C ，再使用正弦定理C A c a sin sin =求出c 边 4.△ABC 中，已知锐角A ，边b ，则 ①A b a sin <时，B 无解； ②A b a sin =或b a ≥时，B 有一个解； ③b a A b < 【英语】状语从句知识点总结和题型总结（word）1 一、初中英语状语从句 1．He doesn't tell me when he_______ . I'll telephone you as soon as he______. A．will come;comes B．will come; will come C．comes; will come D．comes; comes 【答案】A 【解析】 试题分析：句意：他没告诉我什么时间回来。他一回来我就告诉你。宾语从句中表示将来，用将来时，而状语从句中多用一般现在时表示将来时；故选A。 考点：考查时态的用法。 2．Tony has had to cook by himself ________ his mother went on business to Guangzhou. A．since B．after C．during D．when 【答案】A 【解析】 【详解】 句意：自从妈妈去广州出差以来，托尼不得不自己做饭。A. since从……以来；B. after在……之后；C. during 在……期间；D. when当……时候。since后跟时间状语从句时，表示的是到目前为止的时间段，从句时态为一般过去时，而主句的时态为现在完成时，故正确答案为A。 3．—I hear Music and Art will enter the Entrance Examination for the high school. —Yes. but don’t worry. Nothing will be difficult if more attention _____ to them. A．will pay B．will be paid C．is paid D．pays 【答案】C 【解析】句意：——我听说音乐和艺术将进入高中入学考试。——是的。但别担心。如果对他们给予更多的关注，就不会有困难。考查被动语态。本句是if引导的条件状语从句，需用一般现在时态代替一般将来时态；从句主语more attention是单数第三人称，又是动词pay的受动者，需用被动语态，即is+paid结构；根据句意语境，可知选C。 4．—Tom wants to know if you ___ a picnic next Sunday. —Yes. But if it ___， we'll visit the museum instead. A．will have; will rain B．have; rains C．have; will rain D．will have; rains 中考专项训练名词性从句X知识点总结含答案解析 一、初中英语名词性从句 1．_______ you don't like him is none of my business. A. What B. Who C. That D. 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。 2．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others. A. it; that B. what; that C. that; what D. 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．______excited Jenny most was ______ she finally succeeded in ______seemed to be the most difficult exam to him. A. That; that; which B. What; that; what C. That; because; that D. What; because; which 【答案】 B 【解析】【分析】句意：珍妮最兴奋的是对他来说似乎是最困难的考试，她终于成功了。______excited Jenny most是主语从句，从句中缺少主语，因此用关系代词what ；_____ she finally succeeded in ...是表语从句，从句中不缺少成分，因此用引导词that；______seemed to be the most difficult exam to him.是宾语从句，从句中缺少主语，因此用关系代词what ，故选B。 【点评】考查名词性从句，本题涉及主语从句，表语从句和宾语从句。 4．________ his failure lies is expected ________ clear to us. A. What… to make B. How… made C. Where… to be made D. Why… making 【答案】C 【解析】【分析】句意：他的失败之处有可能被我们弄清楚。分析句子可知，主语从句中的lie为不及物动词，所以主句中缺少状语，因此填where。expect sth.to do.固定短语，“期望某事发生”，sth. be expected to do.意为”某事有可能发生“。make sth. clear to sb为固定搭配，意为“向某人阐明某事，使某人弄清某事”。本句中make的宾语是where his failure lies 是被弄清楚，要用动词不定式的被动形式。因此选C。 名词性从句知识点总结经典(1) 一、名词性从句 1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply. A. that B. how C. what D. which 【答案】 C 【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。 【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．________ 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引导的限制性定语从句。 4．Some people believe _______ has happened before or is happening now will repeat itself in the future. A. whatever B. whenever C. wherever D. no matter what 【答案】 A 【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只 高中数学必修五 第一章 解三角形知识点归纳 1、三角形三角关系：A+B+C=180°；C=180°—(A+B)； 2、三角形三边关系：a+b>c; a-b 【考点五】语法考点归纳5（定语从句、名词性从句） 定语从句考点归纳 1．高考对定语从句的考查集中体现在关系词的选择上，包括关系代词和关系副词。关系代词只有6个，即：that，which，who，whom，whose，as，关系副词只有3个，即：when，where，why。 2．选择关系代词和关系副词的方法：由于关系词既有连接作用又有替代作用和成分作用（引导定语从句并在从句中替代先行项/词而且还充当一定的成分），所以在选择关系词时有一个很简单的方法。把先行项/词还原到从句中，看看该用什么关系词来替代。例如： I visited a scientist ______ name is known all over the country. 把先行词a scientist还原到从句中就是：the scientist’s name is known all over the country 可见从句中缺定语，这里该填whose。又如：The school _____ I studied for only two years was three kilometers away. 把先行词the school还原到从句中就构成这样一个简单句：I studied for two years in the school. “in the school”是一个表示地点的介词短语，在从句中作状语，要用where（=in which）来替代。 3．注意关系代词as和which引导非限定性定语从句的区别：as引导的非限定性定语从句可以置于句首，而which 引导的非限定性定语从句只能位于句中或句尾。 4．注意掌握只用关系代替that、只用关系代词which的常见的几种情况，以及“介词+关系代词”引导的定语从句。 考点精析 1.关系代词引导的定语从句 关系代词所代替的先行词是人或物的名词或代词, 并在句中充当主语, 宾语, 定语等成分. 关系代词在定语从句中作主语时, 从句谓语动词的人称和数要和先行词保持一致. (1)Who, whom, that这些词代替的先行词是人的名词或代词, 在从句中所起的作用如下: Is he the man who/that wants to see you 他就是你想见的人吗(who/that在从句中作主语) Hs is the man whom/that I saw yesterday. 他就是我昨天见的那个人.(whom/that在从句中作宾语) (2)whose用来指人或物, 只用作定语, 若指物, 它还可以同of which.互换. 例如: They rushed over to help the man shoes car had broken down. 那人的车坏了, 大家都跑过去帮忙 Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的. (3)Which, that它们所代替的先行词是指代事物的名词或代词, 在从句中可作主语, 宾语等. 例如: A prosperity which/that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣. (Which/that在句中作宾语) The package (which/that) you are carrying is about to come unwrapped. 你拿的包快散了(which/that在句中作宾语) 2.关系副词引导的定语从句 关系副词可代替的先行词是时间. 地点或理由的名词, 在从句中作状语. (1). When, there, why 关系副词when, where, why的含义相当于“介词+which”结构, 因此常常和“介词+which”结构交替使用. 例如: There are occasions when (on which) one must yield. 高考英语名词性从句知识点全集汇编含答案(4) 一、选择题 1．—The hillside village remains primitive and unspoiled. —That explains ______ people desire to explore such a remote place. A．how B．where C．when D．why 2．When we start gazing into the night sky with a telescope, the realization will suddenly come over us _______ we and our world are part of this giant system. A．as B．where C．that D．whether 3．Thor is no longer _______ he was two years ago. A．that B．who C．what D．which 4．They didn't discover until they happened to enter the back room _________ someone had stolen the priceless painting. A．that B．what C．which D．when 5．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what 6．As days go on，I think that Beijing will become ________ the whole world pay close attention to. A．where B．what C．which D．that 7．The Oscars have been around for so long that they serve as an indicator of ________ the Hollywood community values now and in the past. A．that B．where C．how D．what 8．The setting of the film Zootopia may be limited in the city full of kinds of animals, but __________ it exposes about human nature is quite broad. A．which B．that C．what D．whether 9．If you are addicted to your mobile phone, that’s ______ you should lay it down a nd be involved in meaningful activities. A．when B．why C．where D．how 10．Fanny asked ________ made that odd-looking little cat so popular. A．what was it that B．wat was that C．what it was that D．what that was 11．— Would you please tell us the prospect of fighting against COVID-19? —We are sure to win the battle, but ______ it’ll be over soon I’m not sure at the moment. A．whether B．that C．if D．when 12．_______football is such a simple game to play is perhaps the basis of its popularity. A．What B．Whether C．That D．Which 13．Craig is always sticking his nose in ______ it’s not wanted. He is always trying to find out my personal information. A．what B．which C．where D．that 14．The weather is fine. I’m sure ________ we can go camping this afternoon. A．why B．what C．that D．if 15．—How do you find the 5G cell phones? 实用标准 —tanC。 例 1 ? (1 )在 ABC 中，已知 A 32.00 , B 81.80 因为 00 v B v 1800，所以 B 640，或 B 1160. c as nC 空啤 30(cm). sin A s in400 ②当B 1160时, 点评：应用正弦定理时（1）应注意已知两边和其中一边的对角解三角形时，可能有两解的情形; 对于解三角形中的复杂运算可使用计算器 题型2 :三角形面积 2 , AC 2 , AB 3，求tan A 的值和 ABC 的面积。 2 (2 )在 ABC 中，已知 a 20 cm ， b 28 cm ， 40°，解三角形（角度精确到 10，边长精确 到 1cm ) o 解：（1 ）根据三角形内角和定理, C 1800 (A B) 1800 (32.00 81.80) 66.20 ； 根据正弦定理，b asinB 42.9sin81.80 si nA 眾厂 80.1(cm)； 根据正弦定理，c 聲C 丝9也彰 74.1(cm). sin 32.0 （2 ）根据正弦定理, s"B 舸 A 28sin4°0 a 20 0.8999. ,a 42.9 cm ，解三角形; ①当 B 640 时， C 1800 (A B) 1800 (40° 640) 760, C 1800 (A B) 1800 (400 116。)240 , c asinC si nA 呼 13(cm). sin 40 (2) 解法一：先解三角方程，求出角 A 的值。 例2 ?在ABC 中， sin A cos A si nA cos A j2cos(A 45 )-—, 2 1 cos(A 45 )-. 又 0 A 180 , A 45o 60o , A 105.° o o 1 \/3 L tan A tan(45 60 ) 一字 2 J3, 1 73 42 si nA sin105 sing5 60) sin4 5 co$60 cos45 si n60 ——-—. 1 1 /2 洽 n S ABC AC AB si nA 2 3 近 46)。 2 2 4 4 解法二：由sin A cos A 计算它的对偶关系式 si nA cos A 的值。 v 2 — si nA cos A —— ① 2 2 1 (si nA cos A)2 2 1 2sin Acos A — 2 Q0o A 180o , si nA 0,cos A 0. 1 另解(si n2A —) 2 2 3 (s in A cos A) 1 2 sin Acos A —, *'6 _ si nA cos A — ② 2 $2 J6 ①+②得sin A --------------- 。 4 ①-②得 cosA <6 。 4 u 而丄 A si nA J 2 J 6 4 c 匚 从而 tan A l l 2 ~3。 cosA 4 v2 v 6 【初中英语】定语从句知识点总结 一、定语从句 1．This is the most beautiful picture __________ I have ever seen. A．that B．which C．what D．who 【答案】A 【解析】 句意：这是我见过的最漂亮的画。考查定语从句。先行词被最高级修饰时，引导词应用that。 结合句意和语境可知选A。 点睛：限制性定语从句中只能用that 引导定语从句的几种情况： 当先行词是everything, anything, nothing （something 除外）, all, none, few, little, some等不定代词时，或当先行词受every, any, all, some, no, little, few, much等词修饰时。如： Have you set down everything that Mr Li said? There seems to be nothing that is impossible to him in the world. 注意：当先行词指人时，偶尔也可用关系代词who。如： Any man that / who has a sense of duty won’t do such a thing. 任何有责任感的人都不会做这样的事。 All the guests that / who were invited to her wedding were important people. 所有被邀请参加婚礼的 客人都是重要人物。2. 当先行词被序数词修饰时。如：The first American movie that I watched was the Titanic. 3. 当先行词被形容词最高级修饰时。如： This is the best museum that I have visited all my life. 4. 当先行词被the very, the only, the first / last等修饰时。如：She is the only person that understands me. 注意：当先行词指人时，偶尔也可以用关系代词who。如： Wang Hua is the only person in our school who will attend the meeting. 5. 当先行词前面有who, which等疑问代词时。如：Who is the man that is standing in front of the crowd? 站在人群前 面的那个人是谁？Which is the room that Mr Wang lives in? 哪一间是王先生住的房间？ 当先行词人与物时。如：Look at the man and his donkey that are walking up the street. 当先行词是reason, way（方法）等词时，关系代词常用that代替in which, for which, why, 也常可省略。如：She admired the way （that） they solved the questions. 2．Mr.Brown is a teacher is strict with all is students. A．which B．who C．where 【答案】B 【解析】 【详解】 句意“布朗是一个对所有的学生都严格的老师”。 本题考查定语从句。A.指物，在从句中作主语或宾语；B.指人，在从句中作主语或宾语；C.表示地方，在从句中作地点状语。本句话中先行词为a teacher，指人，在从句中作主语，故选B。 【点睛】 做定语从句的题时，可先将先行词还原到句中。其次选择关系词，要先看先行词指人、指 名词性从句知识点总结 在句子中起名词作用的句子叫名词性从句(Noun Clauses）。名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。 一．主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人时也可用who/whom。例如： a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。 b) It doesn’t interest me whether you succeed or not.我对你成功与否不感兴趣。 c) It is in the morning that the murder took place.谋杀案是在早上发生的。（强调句型） d) It is John that broke the window.是John打碎的窗户。（强调句型） 2. 用it 作形式主语的结构 (1) It is ＋名词＋从句 It is a fact that …事实是… It is an honor that …非常荣幸 It is common knowledge that …是常识 (2) It is ＋形容词＋从句 It is natural that…很自然… It is strange that…奇怪的是… (3) It is ＋不及物动词＋从句 It seems that…似乎… It happened that…碰巧… It appears that…似乎… (4) It ＋过去分词＋从句 It is reported that…据报道… It has been proved that…已证实… It is said that…据说… 3. 主语从句不可位于句首的五种情况： （1）if 引导的主语从句不可居于复合句句首。 （2）It is said /reported…结构中的主语从句不可提前。例如： 正确表达：It is said that President Jiang will visit our school next week. 错误表达：That President Jiang will visit our school next week is said. （3）It happens/occurs…结构中的主语从句不可提前。例如： 正确表达：It occurred to him that he failed in the examination. 错误表达：That he failed in the examination occurred to him. （4）It doesn’t matter how/whether …结构中的主语从句不可提前。例如： 正确表达：It doesn’t matter whether he is wrong or not. 名词性从句知识归纳 名词性从句是指在句子中相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。名词性从句不是修饰性从句，而是复合句中的主干。 e.g. That the boy failed again in the exam disappointed his mother. （主语从句） I know that he is writing his composition in his room. （宾语从句） The question is how we can finish it on time. （表语从句） The fact that some Chinese are still poor is really a great problem. （同位语从句） 一、宾语从句---及物动词、介词、部分形容词（certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等）后 e.g. I believe (that) he is honest. (that不充当从句内的任何成分，一般情况可省略) I’m glad that you are satisfied with your job. (that不充当从句内的任何成分) He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分) Please tell me what you want. (what充当从句内的宾语) She always thinks of how she can work well. (how充当从句内的状语) I don’t believe whatever he said.(whatever充当从句内的宾语，意为“任何事”) I’ll take whoever wants to go. (whoever从当从句内的主语，意为“任何人”)【宾语从句要点拓展】1. that引导宾语从句时一般可以省略，若由and或or连接两个宾语从句时，第一个从句中的that可以省略，而第二个分句前的that不可省略。 e.g. He told me (that) they could not decide what to do and that they asked my advice. 2. whether和if引导宾语从句一般可以互换使用，但以下情况只能使用whether 英语名词性从句知识归纳 Prepared on 22 November 2020 名词性从句知识归纳 名词性从句是指在句子中相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。名词性从句不是修饰性从句，而是复合句中的主干。 . That the boy failed again in the exam disappointed his mother. （主语从句） I know that he is writing his composition in his room. （宾语从句） The question is how we can finish it on time. （表语从句） The fact that some Chinese are still poor is really a great problem. （同位语从句） 一、宾语从句---及物动词、介词、部分形容词（certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等）后. I believe (that) he is honest. (that不充当从句内的任何成分，一般情况可省略) I’m glad that you are satisfied with your job. (that不充当从句内的任何成分) He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分) Please tell me what you want. (what充当从句内的宾语) 名词性从句 名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。 （一）引导名词性从句的连接词 1、连接代词：who, whose, whom, what, which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。 2、连接副词：when, where, why, how。有词义，在从句中担任成分，作状语。 3、连接词：that, whether, if, as if。that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。 注意： 1、连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。 2、不可省略的连词： （1）介词后的连词 （2）引导主语从句和同位语从句的连词不可省略。 That she was chosen made us very happy. We heard the news that our team had won. （二）主语从句 1、主语从句在复合句作主语。 e.g. Who will go is not important. 2、用it作形式主语，主语从句放在句末。 e.g. It doesn’t matter so much whether you will come or not. 主要句型有： （1）It+be+形容词+that从句。 It is probable that he told her everything. 很可能他把一切都告诉她了。 （2）It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。It’s no surprise that our team should have won the game. 我们没赢这场比赛真意外。 （3）It+be+过去分词+that从句。 It is said that Mr. Green has arrived in Beijing. 据说格林先生已经到了北京。 （4）It+seem, happen等不及物动词及短语+that从句。 It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。 （5）It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。 It doesn’t matter whether she will come or not. 她是否来这无关紧要。 It makes no difference where we shall have the meeting. 我们在哪里开会毫无区别。 3、that引导主语从句时，不能省略。 e.g. That he suddenly fell ill last week made us surprised. 4、当主语从句作主语时，谓语动词一般用第三人称单数，下面这个句型例外。 What we need is more time and money. 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