2020届二轮复习书面表达写作技巧之五：如何写好名词性从句
名词性从句是高中阶段重要的语法项目之一，也是写作中常用的高级表达方式。它包括主语从句、宾语从句、表语从句和同位语从句。(一)名词性从句的连接词
1．从属连词引导的名词性从句
名词性从句的从属连词在从句中只起连接作用，不作成分，主要包括that, whether/if。
①(2018?全国卷Ⅰ书面表达)What I want to stress is that you'd better bring some gifts.
我想强调的是你最好带一些礼物。
②(2017?全国卷Ⅰ书面表达)Would you tell me if/whether it's convenient for you？你能告诉我你是否方便吗？
2．连接代词引导的名词性从句
名词性从句的连接代词在从句中起连接作用，并在从句中充当主语、表语、宾语、同位语，主要包括what, which, who, whom, whose, whatever, whoever, whomever, whichever等。
(2017?全国卷Ⅰ书面表达)To start with, what I intend to stress is that we are about to start our next lesson in Classroom 8 of the Teaching Building at 10：00 a．m.next Friday.
首先，我想强调的是下周五上午十点钟我们将在教学楼的8号教室开
始我们的下节课。
3．连接副词引导的名词性从句
名词性从句的连接副词在从句中起连接作用，并在从句中充当状语，主要包括how, when, why, where, however, whenever, wherever 等。
①(2018?全国卷Ⅰ书面表达)When you are enjoying the meal, you need to avoid making noises while chewing food，which is where you should pay attention.
当你享受这顿饭的时候，你需要避免咀嚼食物时发出声音，这是你应该注意的地方。
②(2018?北京高考书面表达)Then I showed them how to make tea.然后我展示给他们怎样泡茶。
(二)名词性从句的写法
在写作中，如果能够把两个简单句合并为一个含有名词性从句的复合句，或者把一个简单句扩展成为含有名词性从句的复合句，对写作都是一种质的升华。
名词性从句在写作时可采用“三步法”：
[示例]
第一步：写出两个简单句。
①He said a lot at the meeting.
②His words were very attractive.
第二步：用句①作主语从句，可转换为“他在会上所说的话”，即What he said at the meeting。
第三步：把句①转换的主语从句和句②连在一起。
What he said at the meeting was very attractive.
[应用体验] 用名词性从句将下列每组简单句合并为一个复合句
①Shall we go picnicking tomorrow? It depends on the weather. →
Whether_we_shall_go_picnicking_tomorrow_depends_on_the_weat her.
②This is my decision.All of us are to start at 7：00 o'clock tomorrow morning.
→My_decision_is_that_all_of_us_are_to_start_at_7：00_o'clock_tomorrow_morning.
③When did you enter the room？The police wants to know it. →The_police_wants_to_know_when_you_entered_the_room.
④Our school volleyball team had won the championship.The news encouraged us all greatly.
→
The_news_that_our_school_volleyball_team_had_won_the_champi onship_encouraged_us_all_greatly.
⑤Finally I want to express my hope.All the younger fellows can make full use of time.
→
Finally_I_want_to_express_my_hope_that_all_the_younger_fell ows_can_make_full_use_of_time.
[专题过关训练]
用名词性从句补全句子
1．(2018?全国卷Ⅰ书面表达)相信这是一个你不容错过的好机会。
It_is_believed_that_it_is_an_excellent_opportunity that you mustn't miss.
2．(2018?全国卷Ⅱ书面表达)然后消息传来我们学校将放映一部英文短片，它是一部关于我们学校历史的纪录片。
Then came the_news_that_an_English_short_film_will_be_shown_in_our_sc hool,_which is a documentary on the history of our school. 3．(2018?北京高考书面表达)这就是为什么我建议你申请北京大学，中国最好的大学之一。
That_is_why_I_suggest_you_apply_for Peking University, one of the best universities in China.
4．(2017?北京高考书面表达)我确实希望我的建议能对你有些帮助，也希望你在中国玩得快乐。
I_do_hope_that_my_advice_will_be_of_some_help_to_you and that you'll have a good time in China.
5．(2017?全国卷Ⅱ书面表达)我想告诉你的是，中国剪纸艺术展将于
下周举办。
What_I_want_to_tell_you_is_that the Chinese paper-cutting art exhibition will be held next week.
6．(2016?全国卷Ⅰ书面表达)然而，我不确定措辞和格式是否正确。However, I am not sure about whether_the_words_and_format_are_correct.
7．(2015?全国卷Ⅰ书面表达)你要记住的最后一件重要的事情是在6月28日前把这篇文章发给我。
The last important thing you should remember is that_you_have_to_send_the_article_to_me_before_June_28th. 8．根据以上情况我们可以得出结论：健康的身体有助于提高我们的生活质量。
From the above we_can_draw_a_conclusion_that_a_healthy_body_helps_to_impro ve the quality of our life.
名词性从句 在英语中，句子可分为简单句和复合句，复合句即常说的“从句”。由一个主句和一个（或几个）从句构成的句子叫主从复合句。在复合句中，我们是根据从句在整个句子屮所充当的成分来给复合句命名的。如：主语从句，宾语从句，定语从句，等等。所有的复合句中，“主语从句，宾语从句，表语从句，同位语从句”，他们的从句有名词性特征，因此合称为“名词性从句”。 名词性从句的引导词引导词是否在名词性从句屮充当成分的情况 充当成分：连接代词：what, which, who, whom, whose, whatever, whoever, whichever, 不从当成分：连接副词：when, where, why, how, however 只起连接的作用：that, if/whether, because （that引导的名词性从句，既不作任何成分，也无意义，只是表明从句是一种陈述语气,起个连接作用：if不能引导表语从句和同位语从句，if引导主语从句时不能置于句首，if引导宾语从句吋，只能置于及物动词后，不能置于介词后；because只能引导表语从句） ㈠主语从句（用作主语的从句叫做主语从句） 1. that从句作主语 That引导的主语从句可位于句首直接作主语；也可以位于句末，用it作形式主语； ①That we are invited to a concert this evening is a piece of good news for us. ②It is obvious that the earth is round. 2. whether/if （是否）从句作主语同样可放句首或句末，但放句首只能用whether,不能用if. ?Whether we shall go or stay , is uncertain. ②It was not known whether/if he would ask. 3. whoever, whichever, whatever, however 弓|导主语从句只能放句首。 ?Who will be sent abroad has not been decided. ②It is a mystery how you are going to do it. ③It is not yet clear who was responsible for the accident. @It is his own affair where he goes on Sunday. ?Whoever is here gets a prize. ㈡表语从句（用作表语的从句叫表语从句，是对主语进行解释，使主语内容具体化。 ①My trouble is that I do not have much experience in this kind of work? ②My suggestion is that we should do this by turns. l.That引导表语从句，不可省略that; \vh-引导的从句作表语。（分别在句中作相应成分，不可用if引导）?That is what we should do. That is where our basic interest （利益）1 ies. ②The trouble is that he misunderstood me ③The problem is who should be responsible for the project.
复习专题名词性从句专项练习题及答案 一、初中英语名词性从句 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．Has it been announced ______? A. when are the planes to take off B. that are the planes to take off C. 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。 3．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 doesn't 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.
复习专题常见名词性从句最全总结 一、初中英语名词性从句 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________that the road will be closed tomorrow for repairs. A. was announced B. has been announced C. had been announced D. would be announced 【答案】 B 【解析】【分析】本题考查动词的时态和语态。题干句子中that到句子结束是宾语从句，且从句动词用“will＋动词原形”表示将来，由此推断出空白处谓语动词应用现在的某种时态，在所给四个选项中，只有B项正确。 【点评】考查现在完成时的被动语态，其结构是have/has +been +done。需要注意宾语从句的时态。主句用现在时，从句所需的任何时态。 3．Located between the 16th and the 18th floor, ______ I call my “home” is more like a “bird's nest”. A. which B. that C. what D. where 【答案】 C 【解析】【分析】考查主语从句。What引导主语从句______ I call my “home”且 What在从句中充当call的宾语。故选C。 4．________ we may find interesting is that it usually takes more to be polite. A. That B. What C. Which D. / 【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。 5．______ is our belief that improvements in health care will lead to a stronger, more prosperous economy. A. Which B. What C. It D. As 【答案】 C
复习专题名词性从句试题和答案 一、初中英语名词性从句 1．________ 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。 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．___ 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．____ he will offer us enough help doesn't matter a lot to our success. A. If B. Whether C. Before D. How 【答案】 B 【解析】【分析】句意：他是否提供帮助对于我们的成功没有什么关系。If不可以引导主语从句，故选B。 【点评】考查名词性从句，本题涉及whether引导的主语从句的应用。 5．It is a rule in his family that _______ comes home first should cook the dinner.
【英语】名词性从句练习题(含答案) 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 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。 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
2020届二轮复习名词性从句 【考情分析】 1．what，that引导名词性从句的区别； 2．whether，if引导名词性从句的区别； 3．名词性从句与定语从句、状语从句的区别； 4．it作形式主语、形式宾语的情况； 5．名词性从句中的虚拟语气。 【知识归纳】 考点一：名词性从句分类 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，名词性从句可分为主语从句、表语从句、宾语从句和同位从句。 （一）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. 注意：that引导主语从句时，不能省略。 e.g. That he suddenly fell ill last week made us surprised. （二）表语从句 1、表语从句在复合句中作表语，位于系动词之后。 e.g. The question was who could go there. 注意：引导表语从句的连接词that有时可省去。 e.g. My idea is (that) we can get more comrades to help in the work. （三）宾语从句 1、宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。 e.g. I hope (that) everything is all right. 2、介词之后的宾语从句，不可用which或if连接，要分别用what 或whether。 e.g. I’m interested in whether you’ve finished the work.. I’m interested in what you’ve said. 注意1：whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。
名词性从句复习 Step 1 判断下列各句哪句含有名词性从句，并指出是什么从句： 1. I wonder why she refused my invitation. 2. The truth that the earth turn around the sun is known to all. 3. It was snowing when he arrived at the station. 4. How he persuaded the man to change the plan is interesting to us all. 5. The news that they had won the game soon spread over the whole school. 6. The news that you told me yesterday was really disappointing. 7. That is where Lu Xun used to live. 8. Do you remember the teacher who taught us English at middle school? 知识点总结引导名词性从句的连接词 1、连接代词：who, whose, whom, what, which, whatever, whoever, whichever 2、连接副词：when, where, why, how, whenever, wherever, however 3、从属连词：because, whether, if, as if, that 注意：从句中用的是陈述句的语序, that在名词性从句中无意义也不充当句子成分。 Step 2 用适当的连词填空： 1. I can’t decide ____________ dictionary I should buy. 2. That’s ____________ he refused my invitation. 3. I am very interested in ____________ he has improved his pronunciation in such a short time. 4. ____________ we need is more time. 5. The fact ___________ she had not said anything at the meeting surprised everybody. 6. Is that ___________ you are looking for? 7. Would you please tell me ___________ the nearest post office is? 8. I don’t know ____________ he will agree to the plan or not. Step 3 请把下面的每两句话合成一句含有名词性从句的复合句。 He will succeed. It is certain.
名词性从句总复习经典例题、习题（word） 一、名词性从句 1．We believe ________ you have been devoted to ________ naturally of great necessity. A. that; being B. all that; be C. that all; are D. what; is 【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。 2． 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。 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
名词性从句专题练习 在空格处填上适当的关连词： 1.The question is ___________ the film is worth seeing. 2.Do you doubt ________ I believe you ? 3.This museum is not _______ it was ten years ago. 4.The reason for his success is ________ he work hard. 5.She dresses well, but the trouble is ______ the clothes she is wearing don’t go with each other very well. 6.The suggestion ______ students should learn some practical knowledge is worth considering. 7.It depends on _______ we have enough time. 8.You have no idea _________ anxious I have been for her safety. 9.Now we can see __________ a serious problem the population is. 10.I want to buy some stamps. Can you tell me _______ there’s a post office near here? 11.There’s some doubt _________ she will be able to repay the money on time. 12.My radio doesn’t work.. I don’t know ________ is the trouble. 13._______ he doesn’t like them is very clear. 14.I’d appreciate it ______ you carry out the experiment as directed. 15.The fire destroyed ________ was in the building. 16.We know little about the young lady except ______ you told me. 17.I know nothing about her except ________ she is from Canada. 18.________ there is life on another planet is almost impossible. 19.Please give me the book to _______ wins the first prize. 20.The chance _____ he will attend the meeting is very little. 21.Mark wondered ________ you thought of the new film. 22.The old woman was shocked by _________ had happened to her daughter. 23.Lei Fen was always thinking of _______ he could help others. 24.Could you tell me for_________ you have bought this fur coat? 25.________ he wanted to see was an end to all the armies of the world. 26.The problem lies in ________ we lack time to have holidays. 27.__________ Thomas Edison became a great inventor is known to all. 28.______ he felt sorry for was ______ he wasn’t in time to prevent the accident. 29.__________ we will go camping depends on the weather. 30._________ is likely that we can bridge the generation gap. 31.We should help _____ is in need of our help. 32.The reason ________ he was absent was _______ he wasn’t interested in the meeting. 33.The child is fat. That’s ______ he has a sweet teeth. 34.It’s beyond doubt ________ that man will lag behind in the race. 35._______ the doctor doubt is _______ my mother will recover from the serious disease soon. 36.Traditional education taught people to believe ______ being intelligent meant remembering information and writing about it. 37.After three hours’climbing, they reached _______ they thought was the place they’d been dreaming of.
名词性从句 【考纲解读】 1.了解名词性从句的基本用法; 2.熟练掌握名词性从句的引导词及引导词在从句中的作用; 3.what与that的区别；whether与if的区别； 4. it作形式主语和形式宾语； 5. that引导同位语从句与定语从句的区别。 【预习导学】 名词性从句指的是在主句中起的作用相当于________ 的从句，主要包括____________、 ____________、______________和__________________。 一、主语从句 1．引导主语从句的连接词：从属连词that, whether/if；连接代词what, who, whom, whose, whatever, whichever, whoever等；连接副词when, where, why, how, whenever等。 ①___________ they were in truth sisters was clear from the facial similarity between them. 从她们的面貌相似度就能清楚地看出她们真是亲姐妹。 ②___________ struck me most in the movie was the father’s deep love for his son. 影片中最打动我的是父亲对他儿子深深的爱。 2．主语从句一般放在句首，但有时也可用it作形式主语，而将主语从句移到句子的末尾。常见的句型： (1)It＋be＋形容词(necessary/likely/important/uncertain等)＋that从句 (2)It＋be＋名词(短语)(a pity/a shame/no wonder/no surprise等)＋that从句 (3)It＋be＋过去分词(said/reported/decided/believed等)＋that从句 (4)It＋不及物动词(seem, appear, happen等)＋that从句 ① __________________________ side effect the medicine will bring about, although about two thousand patients have taken it. 尽管大约两千名患者已经服用了这种药，但是它会带来什么样的副作用还不清楚。 ② _________________________ our team has won the game. 我们队获胜一点都不令人吃惊。 ③ ______________________ the meeting will be put off till next Monday. 会议被推迟到下周一召开已经定下来了。 二、宾语从句 1．引导宾语从句的连接词：从属连词that, whether, if；连接代词what, who, whose, whatever,
名词性从句 考情分析预测 名词性从句包括主语从句、宾语从句、同位语从句和表语从句。考查的要点主要是连接代词和副词的正确使用， 主语、谓语的语序，双重连接词以及特殊句型的使用等。其考点主要包括： 1. 考查名词性从句的连接词。女口：有词义的连接代词who, whose, whom, what, which; 连接副词when, where, why, how; 从属连词that, whether, if, as if;无词义的that在从句中不担任成分，有时可省略。 2. 考查名词性从句的语序和时态。 3. 考查it作形式主语、形式宾语的情况。如： (1) lt + be+形容词(necessary, important, obvious 等)+ that 从句； (2) lt + be+过去分词+ that从句； (3) It + be+名词(a surprise, a fact, a shame, an honour等)+ that 从句; (4) It +不及物动词(appear, happen 等)+ that 从句。 4. what引导名词性从句时的语义功能和语法功能。女口：what = the thing that/anything that ; what=?the place that ; what = the time that ；--what = the person that 等。… 5. whoever, whatever, whichever引导名词性从句时的语义功能和语法功能。 咼频考点透析 考点一、考查表语从句 例 1.【2016 ?北京，29】The most pleasa nt thi ng of the rainy seas on is _______ one can be en tirely free from dust. A. what B. that C. whether D.口why 【审题立意】本题考查表语从句引导词的选用.通过语境可知，迷惑点在what和that的选择上。 【知识构建】 一.表语从句常用结构 (1)表语从句跟在系动词后，构成：主语+系动词+表语从句。 The beautiful views and the frien dly people are what new comers like in San Fran cisco. ⑵because引导表语从句强调原因，而why引导的表语从句强调结果。 I think it's because you're careless.
名词性从句 名词性从句涉及较为复杂的句式结构，是高中英语的一个重点语法，也是历年高考的高频考点。通过对近年高考题的分析，2013年高考应着重注意：1、名词性从句引导词的区别；2、that引导的同位语从句与定语从句的区别；3、某些固定搭配及句型在名词性从句中的用法。 名词在句中一般作主语、宾语、表语和同位语。能象一个名词一样在句中充当这些成分的从句就叫名词性从句。名词性从句包括主语从句、宾语从句、表语从句、同位语从句。常用的连接词有： 疑问词（who, whom, whose, what, which, where, why, when, how）可以引导主语、宾语和表语从句。它们的特点是：1、疑问词有本身的词义；2、疑问词在从句中担当句子成分，如主语、宾语或状语；3、这种疑问词引导的从句一律用陈述语序，不能用疑问语序。 下面我们再分别讲述主语从句、宾语从句、同位语从句和表语从句。 一、主语从句 1．that 引导主语从句时，that 没有意义，但不能省略。 （that 引导宾语从句时可以省略。） It worried her a bit that her hair was turning gray.她的头发正在变白，这使她很不安。 That she is a rich woman is known to us all. 众所周知，她是个富有的女人。 We didn’t know (that) you had sold your house. 我们不知道你已经把你的房子卖了。（注意这句话的时态）2．从句作主语时，多数情况下由it 作形式主语，而把主语从句放在后面，尤其是谓语部分（包括宾语）较短的情况下。 It wasn’t very clear what she meant. 不清楚她是什么意思。 It is important that he should come on time. 他按时来是很重要的。 It is true that that man on the left is a well-known writer here. 左边那个人是本地的一位著名作家，这是真的。3．whether 既可以引导主语从句也可以引导宾语从句，但if不能引导主语从句。whether 后面可以加or not, 而if 不能与or not 连用。作介词宾语时不用if.如： Whether I knew John doesn’t matter. = It doesn’t matter whether I knew John.我是否认识约翰没有关系。Whether or not she’ll come isn’t clear. = Whether she’ll come or not isn’t clear. = It isn’t clear whether …. 她是否来还不清楚。 It all depends on whether we can get their cooperation. 这是主语从句还是宾语从句？ it 是形式主语吗？请翻译这句话。 I worry about whether I hurt her feelings. 二、宾语从句 在谓语动词、介词、动词不定式、分词、动名词之后都可以带有宾语从句。某些形容词如sure, happy, glad, certain, pleased 等之后也可以带有宾语从句。 1．that 引导的宾语从句: that 没有意义，在口语或非正式文体中常省略 I really feel she’s making a mistake. James said (that) he was feeling better. Hearing that his son was badly wounded, he hurried to the hospital to see him.
（英语）中考英语总复习--英语名词性从句含解析 一、初中英语名词性从句 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 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。 3．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。 4．Has it been announced ______? A. when are the planes to take off B. that are the planes to take off C. 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。