1，英语从句是什么意思
从句（Subordinate Clause）是复合句中不能独立成句，但具有主语部分和谓语部分，由that、who、when等引导词（Connective）引导的非主句部分。从句有主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句6类。前四类由于主语从句、表语从句、宾语从句及同位语从句在句子的功用相当于名词，所以通称名词性从句；后两类定语从句和状语从句功用相当于形容词，称为形容词性从句。状语从句还可以分为条件状语从句、原因状语从句、方位状语从句和时间状语从句。1.主语从句（Subject Clause）：用作主语的从句叫主语从句。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。2.表语从句（Predicative Clause）：用作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大都一样。3.宾语从句（Object Clause）：在句子中起宾语作用的从句叫做宾语从句.宾语从句分为三类:动词的宾语从句,介词的宾语从句和形容词的宾语从句。很高兴为您解答，如有疑问，可以找我。
2，英语中的从句是什么意思
在英语中 简单的说：
当一个句子充当句中的成分时,就叫做该成分的从句.
比如一个句子做主语,那么就叫主语从句；
比如一个句子做宾语,那么就叫宾语从句；
比如一个句子做定语,那么就叫定语从句；
比如一个句子做状语,那么就叫状语从句；
比如一个句子做表语,那么就叫表语从句；
比如一个句子做同位语,那么就叫同位语从句 句子成分(主谓宾定状补)通常都是单词,这样的句子叫简单句.
如果句子里用另外一个句子做句子成分,那就是一个复杂句,而做成分的句子就叫做从句.
i saw him.这里主谓宾都是单词,是简单句
i saw that he was singing.
主句是I 谓语是saw 宾语是"that he was singing."这个句子,而这个句子就叫宾语从句.
与这个相似的还有,主语从句,定语从句,表语从句,状语从句等.
另外to normanjl:不要误导呀,从句是充当句子成分,而不是修饰句子成分.比如主语从句,宾语从句,同位语从句,表语从句.都不起修饰的作用.只有定语从句和状语从句才起修饰句子成分或句子的作用.
从句不能单独成立的说法也是错的,从句自己就是一个完整的句子.去掉导引词后是完全可以单独成立的.甚至有的从句根本就没有引导词. 宾语从句 用一个句子作宾语就是宾语从句.
如：Nobody knew （whether he could pass the exam.） 没有人知道他是否会通过考试.
He told me （that he would go to college the next year.） 他告诉我他明年上大学.
Do you know （who has won Red Alert game?） 你知道是谁赢得了红色警戒的游戏么?
He didn’t tell me （when we should meet again. ）他没有告诉我什么时候我们能再见面.
括号括着的都是宾语从句 定语从句 what 不能引导定语从句,可引导主语从句,表语从句,宾语从句; it 只是个代词,不能引导从句.
where（先行词是地点）:I live in a beautiful city where I was born.
which（先行词是物）:I live in a beautiful city in which I was born.
where=介词+ which
that（先行词是人或物）:I live in leshan that(可用which) is a beautiful city.
who（先行词是人,做从句的主语或宾语）:I know this man who(可用that) are standing under the tree.
whom（先行词是人,做从句宾语）：I know this man whom the manager fired yesterday. 主语从句 在复合句中充当主语的句子叫做主语从句.
It is certain that he will win the match.
Whom we must study for is a question of great importance 状语从句 状语从句
（Adverbial Clause）
一 状语从句的种类
§ 1状语从句的种类
用来修饰谓语动词、其它动词、定语、状语或整个句子的从句叫做状语从句.状语从句可分为：
1.时间状语从句；(adverbial clause of time)
2.地点状语从句；(adverbial clause of place)
3.原因状语从句；(adverbial clause of cause)
4.条件状语从句；(adverbial clause of condition)
5.目的状语从句；(adverbial clause of purpose)
6.让步状语从句；(adverbial clause of concession)
7.比较状语从句；(adverbial clause of comparison)
8.程度状语从句；(adverbial clause of degree)
9.方式状语从句；(adverbial clause of manner)
10.结果状语从句.(adverbial clause of result)
§2状语从句的时态特点
一般情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”.例如：
I will call you as soon as I arrive in Beijing. 我一到北京就给你打电话.（这是由as soon as引导的时间状语从句,从句中的谓语动词arrive是一般现在时,表示一般将来时,决不可用will arrive）
As soon as I have finished this work, I will go home. 我一完成此工作,就回家.（从句中的谓语动词用现在完成时have finished,表示将来完成时,决不可用will have finished）
If he comes back, please let me know.如果他回来了,请通知我.（从句中的谓语动词用comes back,表示一般将来时,决不可用will come back）
二 时间状语从句
§3时间状语从句（adverbial clause of time）
1.由when, while, as引导的时间状语从句.例如：
When you think you know nothing, then you begin to know something.当你以为自己一无所知的时候,你就是在开始知道一些事物了.
When truth is buried under the ground it grows, it chokes, it gathers such an explosive force that on the day it bursts out , it blows up everything with it.当真理被埋在地下的时候,它在生长,它感到压抑,它蓄存着这么一种爆炸性力量,一旦冒出,它就会炸破一切!
Strike while the iron is hot. 趁热打铁.
Will you watch my clothes while I have a swim. 我游泳的时候,请你照看一下我的衣服.
You can feel the air moving as your hand pushes through it. 当你的手在空气中挥动的时候,你就能感觉到空气在流动.
Our headmaster laughed as she spoke.我们的校长边谈边笑.
【区别】when, while和as的区别：when引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词.并且when有时表示“就在那时”.例如：
When she came in, I stopped eating.她进来时,我在吃饭.(瞬时动词)
When I lived in the countryside, I used to carry some water for him.当的住在农村时,我常常为他担水.（延续性的动词）
We were about to leave when he came in.我们就要离开,就在那时他进来了.
While引导的从句的谓语动作必须是延续性的,并强调主句和从句的动作同时发生（或者相对应）.并且while有时还可以表示对比.例如：
While my wife was reading the newspaper, I was watching TV. (was reading是延续性的动词,was reading和was watching同时发生)
I like playing football while you like playing basketball.我喜欢踢足球,而你喜欢打篮球.（对比）
As表示“一边……一边”,as引导的动作是延续性的动作,一般用于主句和从句动作同时发生；as也可以强调“一先一后.例如：
We always sing as we walk.我们总是边走边唱.（as表示“一边……一边”）
As we was going out, it began to snow.当我们出门时,开始下雪了.（as强调句中两个动作紧接着先后发生,而不强调开始下雪的特定时间）
2.由before和after引导的时间状语从句.注意before引导的从句不再用否定式的谓语,并且当before引导的从句位于主句之后,有时译成“就,才”.还要注意主句和从句之间的时间关系.当主句用将来时,从句总是用现在时；如果before引导的从句谓语用的是过去时,则主句动词多用过去完成时,这样以便体现动作发生的先后.After表示主句动作发生在从句动作之后.主句和从句的动作的时间关系正好与before引导的从句相反.例如：
It will be four days before they come back. 他们要过四天才能回来.
Einstein almost knocked me down before he saw me.爱因斯坦几乎把我撞倒才看到我.
My father had left for Canada just before the letter arrived.我父亲恰好在信到之前去加拿大了.
They had not been married four months before they were divorced. 他们结婚还不到四个月就离婚了.
After you think it over, please let me know what you decide.你仔细考虑过以后,告诉我你是怎样决定的.
After we had finished the work, we went home.完成工作之后,我们回家了.（从句用过去完成时,主句用一般过去时）
3.由till或until引导的时间状语从句.till和until一般情况下两者可以互换,但是在强调句型中多用until.并且要注意的是：如果主句中的谓语动词是瞬时动词时,必须用否定形式；如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同.例如：
I didn't go to bed until（till） my father came back.直到我父亲回来我才上床睡觉.
It was not until the meeting was over that he began to teach me English.直到散会之后他才开始教我英语.
I worked until he came back.我工作到他回来为止.
I didn't work until he came back.他回来我这才开始工作.
Please wait until I arrived.在我到达之前请等我.
4.由since引导的时间状语从句. since引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词.一般情况下,从句谓语动词用一般过去时,而主句的谓语动词用现在完成时.但在It is ＋时间＋since从句的句型中,主句多用一般现在时.例如：
I have been in Beijing since you left. 自从你离开以来,我一直在北京了.
Where have you been since I last saw you? 自上次我和你见面以后,你到哪里去了?
It is four years since my sister lived in Beijing. 我妹妹不在北京住有四年了.
It is five months since our boss was in Beijing.我们老板离开北京有五个月了.
5.由as soon as, immediately, directly, instantly, the moment, the instant, the minute, 等引导的时间状语从句.这些连词都表示“一……就”.例如：
I will go there directly I have finished my breakfast. 吃完早饭,我立即到那里去.
The moment I heard the news, I hastened to the spot.我一听到消息,马上赶到了出事地点.
As soon as I reach Canada, I will ring you up. 我一到加拿大,就给你来电话.
【注意】hardly(scarcely, rarely)…when / before, no sooner…than相当于as soon as之意.主句用过去完成时,从句用一般过去时.当hardly, scarcely, rarely和no sooner位于句首时,主句应用倒装语序.例如：
He had no sooner arrived home than he was asked to start on another journey. 他刚到家,就被邀请开始另一旅程.
No sooner had the sun shown itself above the horizon than he got out of bed to commence work.太阳刚从地平线上升起,他就起床劳动去了.
Hardly had I sat down when he stepped in.我刚坐下,他就进来了.
He had hardly fallen asleep when he felt a soft touch on his shoulder.这个阿拉伯人刚要入睡就感到肩膀上被轻轻一触.
6.由by the time引导的时间状语从句.注意时态的变化：在一般情况下,如果从句的谓语动词用一般过去时,主句的谓语动词用过去完成时；如果主句的谓语动词用一般现在时,主句的谓语动词用将来完成时.例如：
By the time you came back, I had finished this book.到你回来时,我已经写完这本书了.
By the time you come here tomorrow, I will have finished this work. 你明天来这儿的时候,我将已经完成此工作了.
7.由each time, every time和whenever引导的时间状语从句.例如：
Each time he came to Harbin, he would call on me. 他每次来哈尔滨,总是来看我.
Whenever that man says“To tell the truth”, I suspect that he's about to tell a lie.每当那个人说“说实在话”的时候,我猜想他就要说谎了.
You grow younger every time I see you. 每次遇到你,见你更年轻了.
8.由as long as和so long as引导的时间状语从句.这两个连词表示“有多久……就多久”.例如：
You can go where you like as long as you get back before dark. 你可以随意到哪里去,只要在天黑以前回来就行.
I will fight against these conditions as long as there is a breath in my body! 只要我一息尚存,我就要反对这种境况.
三 地点状语从句
§4地点状语从句 (adverbial clause of place)
地点状语从句一般由连接副词where, wherever等引导,已经形成了固定的句型,例如：
句型1：Where＋地点从句,（there）＋主句.
【注意】此句型通常译成“哪里……哪里就……”；主句在从句后面时,there可用可不用；如果主句在从句的前面时,一般都不用there.例如：
Where there is no rain, farming is difficult or impossible.在没有雨水的地方,耕作是困难的,或根本不可能的.
They were good persons. Where they went, there they were warmly welcomed. 他们都是好人.因此他们走到哪里都受到热烈欢迎.
You should have put the book where you found it. 你本来应该把书放回原来的地方.
Where the Communist Party of China goes, there the people are liberated.哪里有了中国共产党,哪里人民得解放.
句型2：Anywhere/ wherever＋地点从句,＋主句.
【注意】anywhere本身是个副词,但是,常可以引导从句,相当于连词,意思相似于wherever, anywhere引导的从句可位于主句之前,也可以位于主句之后. 而wherever本身就是个连词,表示“在何处,无论何处”.例如：
Wherever the sea is , you will find seamen.有海就有海员. 就这么多吧
3，什么是从句？
从句，是复句中具有分属地位的分句，它是一种绝大部分语言都有的语法结构。在现代汉语的语法中，“从句”不作为专业术语被使用。在现代英语的语法中，从句指复合句中不能独立成句，但具有主语部分和谓语部分，由that、who、whom、when、why、where、how、which等引导词（Connective）引导的非主句部分。现在中国教育的“从句”二字常指现代英语的从句结构，故以下只列出现代英语的从句。扩展资料根据从句语法功能的不同可分为：主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句6类。前四类由于主语从句、表语从句、宾语从句及同位语从句在句子的功用相当于名词，所以通称名词性从句；定语从句功能相当于形容词，称为形容词性从句；而状语从句功能相当于副词，称为副词性从句。状语从句还可以分为条件状语从句、原因状语从句、地点状语从句、目的状语从句、让步状语从句、比较状语从句、方式状语从句、结果状语从句和时间状语从句。主语从句（Subject Clause）用作主语的从句叫主语从句。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。表语从句（Predicative Clause）用作表语的从句叫做表语从句。引导表语从句的关联词与引导主语从句的关联词很多都一样。宾语从句（Object Clause）在句子中起宾语作用的从句叫做宾语从句.宾语从句分为三类：动词的宾语从句、介词的宾语从句和形容词的宾语从句。同位语从句是名词性从句(主语从句、表语从句、宾语从句、同位语从句)中的主要从句之一，从句作同位语表示与之同位的名词(短语)的实际内容，它的作用相当于名词，对前面的名词(短语)加以补充说明或进一步解释，相当于一个表语从句，它们之间的关系就是同位关系，即主表关系。参考资料来源：百度百科-从句
4，英语中从句是什么
下面将以最简单的图文形式讲清楚什么是“主从句”、什么是“单复句”、什么是“定语从句、名词从句、状语从句”。单句——拥有一套“主谓结构”（一个时间）；复句——拥有两套以上“主谓结构”（两个以上时间）；主句——可以独立存在的单句从句——不可以独立存在的单句（必须寄生在主句身体里）引导词——链接从句到主句身体的手铐（从句身份标志）一、名词性从句——从句占位主语从句： （主-谓-宾）-谓-宾——占主语位That he finished writing the composition in such a short time surprised us all.他在如此短的时间内写完作文使我们十分惊讶。宾语从句：主-谓-（主-谓-宾）——占宾语位I don't know if there will be a bus any more.我不知道是否还会有公交车.宾语从句：主-谓-宾-（主-谓-宾）——占第二宾语位He told me that he would go to the college the next year.他告诉我他下一年上大学.二、定语从句（形容词性从句）——从句不占位，而是插入主语部分：主（主-谓-宾）-谓-宾——插入主语里的定语从句The first English book that I read was "The Prince and the Pauper" by Mark Twain.我读的第一本书是马克·吐温写的《王子与贫儿》。宾语部分：主-谓-宾（主-谓-宾）——插入宾语里的定语从句I'll never forget the days I spent in the countryside.我永远不会忘记我在农村度过的日子。宾语部分：主-谓-宾-宾（主-谓-宾）——插入第二宾语里的定语从句Someone sent me a book from Seoul that Jack Nicklaus had written called "My Way, " which taught me how to grip the clubs and how to swing.有人从首尔给我寄来了一本杰克·尼克劳斯(Jack Nicklaus)写的《我的路》(My Way)，这本书教会了我如何握杆和挥杆。三、状语从句（主-谓-宾），主-谓-宾When I met the Gills, I had been gardening for nearly ten years.我结识吉尔一家时，我已经几乎做了十年的园艺。主-谓-宾（主-谓-宾）How can I love myself when I look like this?既然我这么一副样子，我怎么能爱我自己？英语句子的结构很简单，在任何情况下一个句子（非并列句）只有一个主谓结构。只是在这个主谓结构的基础上可以综合使用以上三种从句，同时结合三种非谓语动词短语进一步修饰细化增添诸多细节，在配合主句和从句谓语动词各种时态变化（主动、被动、真实、虚拟）从而导致句子变得复杂起来。但是只要你能够抓住主句的主谓结构，那么在复杂的句子都可以被清晰的解析理解。本文作者谢瑞，著有《英语思维：解密英语语法的原理》一书和《英语思维：十课建立完美语法体系》系列视频课程，欢迎转载，转载请注明出处。
5，英语中的从句是什么意思？
句子成分(主谓宾定状补)通常都是单词,这样的句子叫简单句.
如果句子里用另外一个句子做句子成分,那就是一个复杂句,而做成分的句子就叫做从句.
i saw him.这里主谓宾都是单词,是简单句
i saw that he was singing.
主句是I 谓语是saw 宾语是"that he was singing."这个句子,而这个句子就叫宾语从句.
与这个相似的还有,主语从句,定语从句,表语从句,状语从句等.
另外to normanjl:不要误导呀,从句是充当句子成分,而不是修饰句子成分.比如主语从句,宾语从句,同位语从句,表语从句.都不起修饰的作用.只有定语从句和状语从句才起修饰句子成分或句子的作用.
从句不能单独成立的说法也是错的,从句自己就是一个完整的句子.去掉导引词后是完全可以单独成立的.甚至有的从句根本就没有引导词.请采纳。
6，That是什么从句
That可以引导名词性从句，状语从句和强调句。It was exactly what I needed是表语从句，是"主句+表语从句"构成的主从复合句,其中表语是由"what"引导的是表语从句来充当.这里"it" 作代词,当然"it"也可替代后面的名词从句放在句首作形式主语,但这里却不成。that名词性从句。①引导宾语从句。及物动词后的引导词that可省略。I didn't expect (that) he could win the championship.The teacher pointed out that Tom was not working hard enough.② 引导主语从句。通常采用it作形式主语的句型。That the earth goes around the sun is known to everyone.（It is known to everyone that the earth goes around the sun.）③引导表语从句。The trouble is that we are short of money.④引导同位语从句。引导同位语从句的that和引导定语从句的that是不同的。前者只起语法作用，在从句中不作任何成分；而后者在定语从句中作主语、宾语或表语。举例说明：The news that he resigned from office surprised us.The idea that he holds is very common nowadays on campus.扩展资料：与that 有关的常见重要短语。1、in that，意为“既然、因为”。Criticism and self-criticism is necessary in that it helps us correct our mistakes.2、now that，意为“既然、由于”。Now that they have taken matters into their hands, the pace of events has quickened.3、see (to it) that，意为“注意、务必做到、保证”。We will see to it that she gets home early.See to it that you are not late again.4、seeing that，意为“鉴于、由于”。Seeing that it is 8 o'clock, we'll wait no longer.Seeing that he was busy with his work, I didn't disturb him.参考资料：that-百度百科
