从句对比
注意判断定语从句
1．Jinan is no longer the city that it used to be. __________
2．Jinan is no longer what it used to be. __________
3．Jinan is no longer the same city as it used to be. __________.
4．It is well known that the earth is round. __________
5．As is well known, the earth is round. __________
6．It was on Oct.1st that the new China was founded. __________
7．It was Oct.1st when the new China was founded. __________
8．This is such an interesting book that everybody likes to read it. __________
9．This is such an interesting book as everybody likes to read. __________
10．H e found the book that he had lost the day before. __________
11．H e found the book where he had lost it the day before. __________
12．T he mother is always telling her child to study hard, which doesn’t help at all. __________
13．T he mother is always telling her child to study hard and that doesn’t help at all. __________
14．T he news that he told us surprised us all. __________
15．T he news that he got killed in the race surprised us all. __________
易混从句对比练习
1.①The young man found the gold watch _______he lost.
②The young man found the gold watch _______he lost it.
A. that
B. in which
C. where
D. there
2.①The company and the effect _______ brought about did great good to our business in western countries.
②The company and the effect _______ it brought about did great good to our business in western
countries.
A. that
B. what
C. to which
D. it
3.①Use your own mind. Never be ready to believe anything _______ other people believe.
②Use your own mind. Never be ready to believe anything _______ other people believe it.
A. that
B. which
C. because
D. when
4.①Is this museum_______ they visited yesterday?
②Is this the museum_______ they visited yesterday?
③Is this the museum_______ they visited some ancient weapons yesterday?
A. that
B. where
C. one
D. the one
5.①Next month, ______ you’ll spend in your hometown, is coming.
②Next month, ______ you’ll be in your hometown, is coming.
A. that
B. which
C. when
D. where
6.①Yesterday our chemistry teacher asked so difficult a question ________ puzzled all of us.
②Yesterday our chemistry teacher asked so difficult a question ________ it puzzled all of us.
A. that
B. which
C. as
D. what
7.①This is one of the best films _______this year.
②This is the one of the best films _______this year.
A. have been shown
B. that have been shown
C. that has been shown
D. which has been shown
8.①_______, paper was first made in China.
②_______that paper was first made in China.
③_______is that paper was first made in China.
A. It is known to us all
B. What is known to us all
C. As is known to us all
D. That is known to us all
9.①When Christopher Columbus reached the place _______ is now the USA, he called the people of the
new world “Indians”.
②When Christopher Columbus reached _______is now the USA, he called the people of the new world
“Indians”.
A. which
B. where
C. there
D. what
10.①The town is no longer the one_______ it was 10 years ago, _______ it was quite dirty.
②The town is no longer ______ it was 10 years ago；_______ it was quite dirty.
③The town is no longer the same _______ it was 10 years ago, _______ it was quite dirty.
A. that; then
B. as; when
C. that; when
D. what; then
11.①This is the very way_______ he did the experiment.
②This is the very way_______ he told me yesterday.
③This is _______ he did the experiment.
A. how
B. by which
C. that
D. which
12.①The reason _______ he failed was that he hadn’t taken my advice.
②The reason for _______ he failed was that he hadn’t taken my advice.
③The only reason _______ he could give us was that he failed to catch the bus.
A. that
B. which
C. because
D. why
13.①You should put the dictionary _______ you could find it easily.
②You should put the dictionary on the desk_______ you can find it easily.
A. which
B. in which
C. where
D. there
14.①It is the house_______ I met the young man.
②It was in the house_______ I met the young man.
A. that
B. which
C. where
D. there
15.①It was 7:00_______ I arrived in Beijing.
②It was at 7:00_______ I arrived in Beijing.
A. that
B. which
C. when
D. on which
16.①He said nothing_______ made me angry
②He said nothing, _______ made me angry
③He said nothing, _______ had been expected.
A. that
B. which
C. as
D. it
17.①The Chicago Bulls used to be made up of the best basketball players in the States, _______ are Black
Americans.
②The Chicago Bulls used to be made up of the best basketball players in the States, _______ Black
Americans.
③The Chicago Bulls used to be made up of the best basketball players in the States, and_______ are Black
Americans.
A. most of whom
B. most of them
C. most of which
D. most of it
18.①—Why did he say so?
—Sorry, I don’t understand _______ he said.
②—Why did he say so?
—Sorry, I don’t understand _______ he said means
A. all what
B. what all
C. all that
D. that all
19.①Computers must be of great use to ________ do the scientific research.
A. ②Computers must be of great use to ________ doing the scientific research.
A. those
B. who
C. those who
D. whomever
20.①You can use a larger plastic battle, _______ is cut off, as a pot to grow flowers in.
D. ②You can use a larger plastic battle, _______ cut off, as a pot to grow flowers in.
A. the top
B. whose top
C. whose the top
D. with its top
英语三大从句精编版
复合句 【语法要点】 复合句是由一个主句加一个或几个从句所构成的句子。从句只用作句子的一个成分，不能独立。根据从句在句子中的作用，可分为名词性从句、定语从句和状语从句三类。 （一）名词性从句 名词性从句包括主语从句、表语从句、宾语从句、同位语从句。其关联词有连接词that、if、whether；疑问代词who、what、which和疑问副词when、where、how、why等。 1.名词性从句句法结构： 从 属 连 词that whether 主 语 从 句 That he will come is certain.（that不可省） Whether she is coming or not doesn’t matter too much. （不能用if） 宾 语 从 句 I think（that）he will be all right in a few days. I went in and asked if（=whether）they had a cheap suit. I wonder whether（不能用if）it is true or not. 表 语 从 句 The fact is（that）I have never been there. The question is whether（不能用if）it is worth doing. 同 位 语 从 句 The fact that she had not said anything surprised all of us. They asked me the question whether the work was worth doing. 连接代词 that who whom whose which 主 语 从 句 Who will help him is not known. What he said is very important. Which side will win is not clear. 宾 语 从 句 （1）作及物动词的宾语。例如： I really don’t know what he is doing. Do you know who/whom they are waiting for? He asked whose dictionary it was. He can’t tell which method they will use for the experiment. （2）作介词的宾语。例如： Pay attention to what the teacher said. I wondered to whom he had given the letter. 表 语 从 句 That is what he is worried about. The question is who will come here. The question is which team will win the match.
英语语法从句讲解
从句 从句按其在主句中的句法功能可分为三类: 即名词性从句、形容词性从句(即定语从句)和副词性从句(即状语从句)。 引导从句的词称作关联句. 一、名词性从句 引导这些名词性从句的关联词包括: 从属连词that, if, whether; 连接代词 who,whoever,whom,whomever,which,whichever,what,whatever,wh ose; 连接副词where, when, why, how。 其中, 从属连词只起连接作用, 在从句中不充当任何句法成分, 而连接代词和连接副词既起连接作用, 在从句中又充当一定的成分. That Owen should have married his cousin is not at all surprising. The fact is that he didn't go to the dinner party. I don't know if he will attend the meeting. Have you heard the news that Mary is going to marry Tom? 你听说玛丽要和汤姆结婚的消息了吗?(that引导同位语从句) [提示]
1. 在含有主语从句的复合句中, 为保持句子平衡, 常用it作形式主语,而将真正的主语从句置于句末. It's well-known that water is indispensable to life.(形式主语) 2. 为保持句子平衡, that引导的宾语从句也常用it代替, 而将真正的宾语从句置于主句句末。这常常出现在主句有形容词或分词作宾语补足语的情况下。 He made it quite clear that he preferred to live here. 3. 从属连词whether和if都作“是否…”解, 但if不可引导主语从句和表语 从句。whether可与or(not)连用, 而if不可以。 I don't know whether (if) she is at home. Whether she comes or not makes no difference. 4. that和what引导名词性从句的区别: that在从句中不充当成分,而what在从句中充当一定的成分, 如主语、表语、宾语等。that可省略, what则不可省。 He always means what he says. She suggested (that) he do it at once. 5. 同位语从句大多由从属连词that引导, 常跟在下列名词后面, 如fact, idea, opinion, news, hope, belief等, that不可省。同位语从句一般用来解释说明这些名词的具体含义和内容。 We are familiar with the idea that all matter consists of atoms. The news that we are invited to the conference is very encouraging.
英语三大类基本从句
PART1：英语从句三大类型 按一般说法，可分为三大类14种从句。 一,名词性从句 1主语从句Whether it's right or not remains to be seen. 2宾语从句I wonder whether it's right or not. 3同位语从句This is a question whether it's right or not. 4表语从句The question is whether it's right or not. 二,定语从句 1限定性定语从句She is the student who can speak English well. 2非限定性定语从句She is the student,who can speak English well. 三,状语从句 1时间状语从句The fact will come out when he comes here. 2地点状语从句You can go wherever you like. 3原因状语从句Pay more attention to your lessons because you are a student. 4方式状语从句He walks as if he were a king. 5目的状语从句She went to Japan so that she could learn Japanese well. 6结果状语从句She went to Japan so that she learned Japanese well. 7条件状语从句I will understand it if he tells me. 8让步状语从句He knows a lot though he is little. PART2：经典名词性从句 主语从句(subject clauses)在复合句中起主语作用的从句叫主语从句。引导主语从句的词有从属连词、、关系代词、连接副词等。引导主语从句的关联词有从属连词that、whether，关系代词：who, what, which, whom, whose, whatever, whoever, whomever, whichever；关系副词：when, where, how, why, however, whenever, wherever等。 That you don’t like him is none of my business.你不喜欢她不管我的事。What he said is true. 他说的是真的。 Do you remember how he arrived almost at the end of the party?你记得他几乎是在宴会快结束时才到的吗？ This party's really where it's at, man! 啊，这个晚会真棒！ Tell us how you fulfilled the heavy task ahead of schedule.告诉我们,你们是怎样提前完成这一艰巨任务的。 We have reason to believe that the fighting on the border may develop into a full-blown war. (喻)我们有理由相信边境上的冲突可能发展成一场全面战争。 He said that he would come. 他说他要来。 Whether the football game will be played depends on the weather.足球比赛是否举行将视天气而定。
精选高中英语三大从句总结+练习
高考英语定语从句、名词性从句、状语从句综合练习 一定语从句 1.定义：在复合句中，修饰名词或代词的从句为定语从句，如： The novels that were written by Lu Xun were not easy to understand. 2.定语从句的构成要素 （1）先行词： （2）关系词： （3）从句： 3.定语从句的关系词 that which （1）关系代词who whom whose as when （2）关系副词where why 4.关系词的句法功能： （1）关系代词在定语从句中作______________，关系副词在定语从句中作_______________，关系代词作宾语时可以省略； （2）关系副词在定语从句中作______________。 5.定语从句解题方法 找准先行词，将先行词带入定语从句，使定语从句成为一个完整的句子，再分析从句的句子成分。若从句缺主语或宾语选用_____________________，若从句却状语，选用_____________________。 二、名词性从句 1.名词性从句分类 （1）主语从句 （2）宾语从句 （3）表语从句 （4）同位语从句 2.名词性从句的语序 名词性从句使用________________语序 3.名词性从句的引导词 连接词：that, whether, if
名从引导词连接代词：what, which, who, whom, whose, whatever, whichever, whomever, whomever 连接副词：when, where, why, how, whenever, wherever, however 4.名词性从句引导词的句法功能 （1）连接词： （2）连接代词： （3）连接副词 5.名词性从句解题方法 三、状语从句 1.状语从句的引导词： 时间状语从句： 地点状语从句： 原因状语从句： 让步状语从句： 条件状语从句： 结果状语从句： 目的状语从句： 比较状语从句： 方式状语从句： 2.状语从句解题方法 The evening, _________ I will tell you more about later, I ended up working very late. A. that B. which C. what D. when 2.（2010福建）We should respect food and think about the people who don’t have _____we have here and treat food nicely. A. that B. which C. what D. whether 3.（2008湖南）__________ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it. A. If B. While C. Because D. As 4.（2008重庆）They will fly to Washington, _________ they plan to stay for tow or three days. A. where B. there C. which D. when
中考英语三大从句练习及答案解析
中考英语三大从句练习及答案解析 定语从句： （一）基础：引导词---who, which, that, whom, 练习1.I like cities___________are quiet and clean. 2.I prefer students _________are hard- working. 3.I hate TV shows _________ are noisy and boring. 4.The music __________ is gentle and quiet attracts me a lot. 5.The food __________tastes delicious is not always healthy. 6.Those boys ___________ are playing basketballs over there are from Class Fifteen. 7.The books ____________ are written by Lu Xun are worth reading. 8.The town ___we visited last week is much larger than before.9.The book ___ he bought is very interesting. （二）特例：只用that的情况 1先行词被___________或___________所修饰，或本身是______________________时，只能用 that， 2.被修饰的先行词为 ________________________________________________等不定代词时, 只能用 that. 3.先行词被 _____________________________________________等词修饰时，只能用 that，而不用which。 4.先行词里同时含有______________________，如I can remember well the persons and some pictures that I saw in the room. 5. 以______________________引导的特殊疑问句，只能用that.如： Who is the girl that is crying? 练习1. I am interested in everything___ is about the 2006 World Cup. 2. Is there anything___I can do for you? 3. This is the very bike ______I lost 4.To my surprise, he gave me nothing __ I need. 5.This is the best dictionary __ I have ever used. 6. He was the first person _______passed the exam. 7.He talked happily about the men and books________interested him greatly. （三）whose 1. The student ______father works in the factory is sitting there. 2. I like the rooms ______windows face south. 3. This is the desk ______legs were broken. 4The woman ___ umbrella you took is angry about it.5.. 6The banana __skin is green can’t be eaten.7That tall tree _ leaves are yellow is very old. （四）从句谓语单复数由先行词确定，时态由从句时间状语决定，不必跟主句保持一致。 1-He is one of the boys who ____ (doesn’t, don’t) finish doing homework. 2-I like films which ____(be) exciting and interesting. 3- 4-That boy who _____(run) fastest is from our class. 5Those boys who ____ playing the guitar are from our school. (be) 6The trees which _____ (be) watered yesterday belong to them. 7The man who ____ over there is our teacher.(stand) 8Those boys who ____ playing the guitar are from our school. (be) 9Mr. Brown is one of the foreign experts _______ _________ (work) in China. 10I’m one of the boys ______ ________(like) English best. (五)“介词＋关系代词”注意：介词的选用要考虑： A.与先行词的搭配关系 1）I will never forget the day __________ I joined the army. 2) I will never forget the days ______ I worked here. 3) I will never forget the year ____________ my son went to college.
中考英语三大从句练习与答案解析
中考从句讲与练 定语从句： （一）基础：引导词---who, which, that, whom, 练习1.I like cities___________are quiet and clean. 2.I prefer students _________are hard- working. 3.I hate TV shows _________ are noisy and boring. 4.The music __________ is gentle and quiet attracts me a lot. 5.The food __________tastes delicious is not always healthy. 6.Those boys ___________ are playing basketballs over there are from Class Fifteen. 7.The books ____________ are written by Lu Xun are worth reading. 8.The town ___we visited last week is much larger than before.9.The book ___ he bought is very interesting. （二）特例：只用that的情况 1先行词被___________或___________所修饰，或本身是______________________时，只能用 that， 2.被修饰的先行词为 ________________________________________________等不定代词时, 只能用 that. 3.先行词被 _____________________________________________等词修饰时，只能用 that，而不用 which。 4.先行词里同时含有______________________，如I can remember well the persons and some pictures that I saw in the room. 5. 以______________________引导的特殊疑问句，只能用that.如： Who is the girl that is crying? 练习1. I am interested in everything___ is about the 2006 World Cup. 2. Is there anything___I can do for you? 3. This is the very bike ______I lost 4.To my surprise, he gave me nothing __ I need. 5.This is the best dictionary __ I have ever used. 6. He was the first person _______passed the exam. 7.He talked happily about the men and books________interested him greatly. （三）whose 1. The student ______father works in the factory is sitting there. 2. I like the rooms ______windows face south. 3. This is the desk ______legs were broken. 4The woman ___ umbrella you took is angry about it.5.Here comes a girl ___ handwriting is the best . 6The banana __skin is green can’t be eaten.7That tall tree _ leaves are yellow is very old. （四）从句谓语单复数由先行词确定，时态由从句时间状语决定，不必跟主句保持一致。 1-He is one of the boys who ____ (doesn’t, don’t) finish doing homework. 2-I like films which ____(be) exciting and interesting. 3-Children who often ____(eat) junk food are easy to become fat and unhealthy. 4-That boy who _____(run) fastest is from our class. 5Those boys who ____ playing the guitar are from our school. (be) 6The trees which _____ (be) watered yesterday belong to them. 7The man who ____ over there is our teacher.(stand) 8Those boys who ____ playing the guitar are from our school. (be) 9Mr. Brown is one of the foreign experts _______ _________ (work) in China. 10I’m one of the boys ______ ________(like) English best. (五)“介词＋关系代词”注意：介词的选用要考虑： A.与先行词的搭配关系 1）I will never forget the day __________ I joined the army. 2) I will never forget the days ______ I worked here. 3) I will never forget the year ____________ my son went to college. B. 与谓语动词的搭配习惯 1）Have you found the book ________I paid 29 dollars? 2）Have you found the book ________I spent 29 dollars? 3)Have you found the book _____________we learnt a lot? 4) Have you found the book _______she often talks? 关系副词的用法 练习：1. It must be a good place ________________we can do a lot of exercise.
英语五大基本句型及三类从句
英语五大基本句型 一)主+ 系+ 表语 例：You are a baby 系动词：联系动词（Link Verb），作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语（亦称补语），构成系表结构说明主语的状况、性质、特征等情况。 例如：He fell ill yesterday. 他昨天病了。（fell是系动词，后跟补足语，说明主语情况。） 说明：有些系动词又是实义动词，该动词表达实义时，有词义，可单独作谓语。例如：He fell off the ladder. 他从梯子上摔下来。fell是实义动词，单独作谓语。1）be动词--用来表示主语状态。 例如：He is a teacher. 他是一名教师。（is与补足语一起说明主语的身份。）2）持续系动词--用来表示主语继续或保持一种状况或态度。 主要有：keep, rest, remain, stay, lie, stand。 例如：This matter rests a mystery. 此事仍是一个谜。 3）表像系动词--用来表示"看起来像"这一概念， 主要有：seem, appear, look。 例1：He seems （to be）very sad. 他看起来很伤心。 例2：—You don’t look very _____.Are you ill? （2003春） —No, I’m just a bit tired. A．good B．well C．strong D．healthy 【句意】：你看上去不是很健康，生病了吗？【答案】：B 【分析】：look well 此时well是形容词表示健康 4）感官系动词 感官系动词主要有feel, smell, sound, taste。 例1：-Do you like the material? (1994) -Yes, it __________ very soft. A. is feeling B. felt C. feels D. is felt 【句意】：你喜欢这个材料吗？是的手感很软【答案】：C 【分析】：soft形容词做feel的表语.感官系动词表示感觉所以要用一般现在时例2：The story sounds___ (1989) A. to be true B. as true C. being true D. true 【句意】：这个故事听起来是真的【答案】：D 【分析】：sound是.感官系动词所以后加形容词做表语 例3：These oranges taste __________. A. good B. well C. to be good D. to be well 【句意】：这些橘子吃起很好吃【答案】：A 【分析】：taste是.感官系动词所以后加形容词做表语所以答案是A 5）变化系动词---这些系动词表示主语变成什么样，变化系动词 主要有：become, grow, turn, get, go 等。 例：It worried her a bit that her hair was turning gray.(1992)他头发变得灰白让他忧虑。 6）终止系动词--表示主语已终止动作. 主要有：prove, turn out, 表达"证实"，"变成"之意。
高一英语定语从句讲解精华版
定语从句 一、基本概念： 定语： 定语从句： Do you know the man who spoke at the meeting just now That is the house where he lived ten years ago. 引导词：关系词 关系代词有：that, who, whom, whose, which; 在从句中充当： 关系副词有：when, where, why. 在从句充当： 先行词： 定语从句中引关系词的作用： 二、关系词的用法： （一）关系代词的用法： 1． He is the man lives next door. The train has just left is for Shenzhen. 2． The man ________ we have just seen is a famous writer. Where is the book ___________I bought last week （二）关系副词的用法： 1． I still remember the time ________I first became a college student. Do you know the date __________Lincoln was born
(三) 使用关系副词应注意下列几点： 1．这三个关系副词在意义上都相当于一定的介词+which结构： when = on (in, at, during…) + which; where = in (at, on…) + which; why = for which. 如： I was in Beijing on the day when (=on which) he arrived. The office where (=in which) he works is on the third floor. This is the chief reason why (=for which) we did it. 2．当先行词是表时间的time, day等和表地点的place, house等时，一定要注意分析从句的结构，如果缺少主语或宾语时，关系词应该用which或that, 缺少时间状语或地点状语时，才能用when或where，试比较： I’ll never forget the day _________ my hometown was liberated. I’ll never forget the days____________we spent together last summer. His father works in a factory____________radio parts are made. His father works in a factory______________makes radio parts. 三．限制性定语从句与非限制性定语从句 1．限制性定语从句 This is the telegram which he refers to. Is there anything (that) I can do for you 2．非限制性定语从句 This note was left by Tom, who was here a moment ago. As a boy, he was always making things, most of which were electric.
初中英语三大从句总结
一. 宾语从句object clause： 一. 定义definition： 在句子中起宾语作用的从句叫做宾语从句。 二. 连接词connections： that: I think that you can pass the exam. Whether/if: I don’t know what the word means. “Wh”: I don’t know what the word means. I don’t know where he found the book. 只用whether的情况： 1. 与or not连用： I don’t know whether it’s raining or not. 2. 与动词不定式连用： He doesn’t know whether to accept the invitation. 3. 连接词前有介词时： It depends on whether he is coming. 三. 时态tenses: 1. 主句是一般现在时态，从句根据实际情况而定(各种时态均可) She wants to know what he has done for the exam. 2.主句是一般过去时态，从句用相应的过去的时态。 1）She said that she was a student. 2）She said that she would fly to Japan in a week. 3）She said that she had finished her homework already. 3. 如果宾语从句说的是客观真理、自然现象或事实时，这时宾语从句要用一般现在时态。 The teacher said that the earth goes round the sun. 二. 定语从句Attributive clause： 1.定义：在复合句中修饰名词、代词的从句叫定语从句 2.先行词指人who /that 先行词指物which/ that 3. 定语从句一般紧跟被修饰的名词或代词（即先行词）后 4.关系代词代替先行词在句子中担当成分，所以从句中不可再出现其他代替先行词的代词 5.翻译方法“…. 的” Eg. 1. Yesterday we bought a book which is really hard to understand. 2. The students who are from Maple Leaf School like learning English. Whom: 先行词指人，则代替先行词在定语从句中充当宾语（包括介词的宾语）, 与who的区别是如果前面带介词则必须用whom 1.This is the teacher whom\who we like best. 2. I don’t like the boy to whom you are talking. Whose : 指人或物，作定语，表示“…的” eg: Harry is the boy whose mother is our math teacher.
高中英语三大从句
高中英语主要要掌握三大从句。 分别是： 1、定语从句（形容词从句） 2、名词词从句（包括主语从句，宾语从句，表语从句，同位语从句） 3、状语从句（副词性从句，包括时间，地点，结果，目的，原因等） 一、定语从句： 定语从句（Attributive Clauses）在句中做定语，修饰一个名词或代词，被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。 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，并在从句中充当主语、宾语、定语等成分。关系代词在定语从句中作主词保持一致。 （1）, who, whom, that 这些词代替指人，“whom”作宾语指人，“that”既可作主语又可作宾语（作宾语可以省略），可以指人也可以指物。 （2），Which 用来指人或物 (用作主语、宾语，作宾语时可以省略） （3），whose “whose”表示谁（可以为人也可以为物）的（东西） 2、关系代词引导的定语从句 （1），关系副词why主要用于修饰表示原因的名词（主要是the reason），同时它在定语从句中用作原因状语。 （2），关系副词when主要用于修饰表示时间的名词，同时它在定语从句中用作时间状语。 （3），关系副词where主要用于修饰表示地点的名词，同时它在定语从句中用作地点状语。 3、非限制性定语从句 它起补充说明作用，缺少也不会影响全句的理解。在非限制性定语从句的前面往往有逗号隔开。 二、名词性从句 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，名词性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。 引导名词性从句的连接词可分为三类： 1、连词（5个）：that （宾语从句或表语从句中that有时可以省略） whether,if （均表示“是否”表明从句内容的不确定性） as if ,as though （均表示“好像”，“似乎”） 以上在从句中均不充当任何成分
英语三大从句
英语三大从句 在英语中，主要有三大从句，即名词性从句（包括主语从句，宾语从句，表语从句，同位语从句）、形容词性从句（即定语从句）、副词性从句（即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等）。 定语从句 一、关系代词引导的定语从句关系代词代替前面的先行词，并且在定语从句中充当句子成分，可以作主语、宾语、定语等。常见的关系代词有：who, that, which 。它们的主格、宾格和所有格如下表所示： （一）关系代词who, whom 和whose 的用法 who 代替人，是主格，在定语从句中作主语。 An architect is a person who designs buildings. 建筑师是设计房屋的人。 whom 代替人，是宾格，在定语从句作宾语，在非正式英语常可省略。 Do you know the gentleman whom we met in the school library yesterday? 昨天我们在学校图 书馆里遇到的那位先生你认识吗？ whose 一般代替人，有时亦可代替物，是所有格，在定语从句作定语。 The girl student whose father is a senior engineer used to study abroad. 其父是一位高级工程师的那个女学生过去在国外留学。 Do you know the name of the hotel whose window we can see here? 我们这儿能看到窗户的那个宾馆叫什么名字，你知道吗？（关系代词whose 指代先行词hotel ，正式用法应该用of which 。whose window=the window of which ，意思是：the window of the hotel 。） （二）关系代词which 的用法 which 代替物，在定语从句作主语或宾语，作宾语时还可省略。 I do not like stories which have unhappy endings. 我不喜欢有不幸结局的小说。（which 可以换成that ） （三）关系代词that 的用法that 既可指人又可指物，在当代英语中大多指物，在定语从句作主语或宾语，作宾语时还可省略。：Is she the girl that sells newspapers? 她是卖报纸的那个女孩吗？（that 可以换成who ） Where is the ice-cream that was in the fridge? 放在冰箱的冰激凌哪儿去了？（that 可以换成 which ） Is this the book that you want to buy? 这是你要买的那本书吗？（that 可以换成which ，在定语从句作宾语，还可以省略） 二、关系副词引导的定语从句常用的关系副词只有三个：when, where, why ，在定语从句中充当时间、地点和原因状语。 （一）关系副词when 的用法 关系副词when 代替的先行词表示的是时间，when 在定语从句作时间状语。 In Beijing July and August are the months when it rains very often. 北京的七月和八月是常下雨的月份。（when 先行词是months ） （二）关系副词where 的用法关系副词where 代替的先行词表示的是地点，where 在定语从句作地点状语。
(完整)初中英语三大从句详解
在英语中，主要有三大从句，即名词性从句（包括主语从句，宾语从句，表语从句，同位语从句）、形容词性从句（即定语从句）、副词性从句（即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等）。 以下是一些基本的从句的语法知识点 A、定语从句专项讲解与训练 一、定语从句概念 定语从句（attributive clause），顾名思义，就是一个句子作定语从属于主句。定语一般是由形容词充当，所以定语从句又称作形容词从句。另外，定语从句是由关系代词或关系副词引导的，故又称作关系从句。 定语从句一般放在它所修饰的名词或代词之后，这种名词或代词被称作先行词。请看示例： The woman who lives next door is a teacher. 先行词定语从句 在所有的从句中，算定语从句最难掌握，因为汉语里没有定语从句，汉语里只有定语，而且总是放在名词之前来修饰名词。 二、关系代词引导的定语从句 关系代词代替前面的先行词，并且在定语从句中充当句子成分，可以作主语、宾语、定语等。常见的关系代词有：who, that, which。它们的主格、宾格和所有格如下表所示： 格 先行词主格宾格所有格 人who whom whose 物which which whose of which 人、物that that — （一）关系代词who, whom和whose的用法 who代替人，是主格，在定语从句中作主语。例如： An architect is a person who designs buildings. 建筑师是设计房屋的人。 I will never forget the teacher who taught us chemistry in the first year of my senior middle school. 我将永远不会忘记在高一时教我们化学的那位老师。 Anyone who wants to apply for this job must send us the resume by email first. 想应聘这个职位的任何人都必须先通过电子邮件向我们发送简历。 whom代替人，是宾格，在定语从句作宾语，在非正式英语常可省略。例如： Do you know the gentleman whom we met in the school library yesterday? 昨天我们在学校图书馆里遇到的那位先生你认识吗？ This is the student whom my father taught ten years ago. 这是我爸爸十年前教的学生。 The girl who I saw is called Mary. 我见到的那个女孩名叫玛丽。（在非正式英语中，主格who代替了宾格whom，亦可省略） whose一般代替人，有时亦可代替物，是所有格，在定语从句作定语。例如： The girl student whose father is a senior engineer used to study abroad. 其父是一位高级工程师的那个女学生过去在国外留学。 Do you know the name of the hotel whose window we can see here? 我们这儿能看到窗户的那个宾馆叫什么名