英语中三大类从句PPT精选文档
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英语三大从句讲解ppt课件
病 原 体 侵 入 机体， 消弱机 体防御 机能， 破坏机 体内环 境的相 对稳定 性，且 在一定 部位生 长繁殖 ，引起 不同程 度的病 理生理 过程
v 名词性从句（substantive clauses): 主语从句subject clause、宾语从句 object clause、表语从句 predicative clause、同位语从句 appositive clause.
Everything that we saw in this film was true.
③ everything, something, nothing, all, anything, little, much等不定代词作先行词时 This is the very book that belongs to him. ④ 先行词被the only, the very, the same, the last 修饰时。 Who is the girl that is standing under the tree? Which is the machine that we used last Sunday.
如何选用定语从句的关系词 1.首先分清主句和定语从句 2.确定定语从句的先行词 3.把先行词带回到定语从句中去，看其
在定语从句中做什么语法成分（主语， 宾语，定语或状语） 4.若先行词在从句中做主语、宾语或定 语则选择关系代词，若在从句中做状 语，则选择关系副词。
病 原 体 侵 入 机体， 消弱机 体防御 机能， 破坏机 体内环 境的相 对稳定 性，且 在一定 部位生 长繁殖 ，引起 不同程 度的病 理生理 过程
4.Many people , as you know, are learing foreign languages.
v 名词性从句（substantive clauses): 主语从句subject clause、宾语从句 object clause、表语从句 predicative clause、同位语从句 appositive clause.
Everything that we saw in this film was true.
③ everything, something, nothing, all, anything, little, much等不定代词作先行词时 This is the very book that belongs to him. ④ 先行词被the only, the very, the same, the last 修饰时。 Who is the girl that is standing under the tree? Which is the machine that we used last Sunday.
如何选用定语从句的关系词 1.首先分清主句和定语从句 2.确定定语从句的先行词 3.把先行词带回到定语从句中去，看其
在定语从句中做什么语法成分（主语， 宾语，定语或状语） 4.若先行词在从句中做主语、宾语或定 语则选择关系代词，若在从句中做状 语，则选择关系副词。
病 原 体 侵 入 机体， 消弱机 体防御 机能， 破坏机 体内环 境的相 对稳定 性，且 在一定 部位生 长繁殖 ，引起 不同程 度的病 理生理 过程
4.Many people , as you know, are learing foreign languages.
2022年英语中考三大从句课件
B. who
C. why
D. whose
D. were talking
•( A)3. Polly said no news _____ good news.
A. was
B. were
C. is
•( C)4. We didn ’t know _____ she was ready or not.
A. when
B
•( )10. —Do you know _____ going to stay in London?
—No, I don’t. Maybe a few days.
A. when he is
B. how long he is
C. when is he
D. how long is he
II.句型转换
【宾语从句】练习题
•( D)1. He asked which film they _____ about.
A. will talk
B. are going to talk C. was going to talk
•( D)2. Do you know _____ bike this is?
A. that
示“是否”
Australia?你能告诉我澳大利亚冬天是否下雪吗？
宾语从句
构成规则
例句
语序
从句一律用陈述句语序，即 Do you know where Tom lives?
主语＋谓语+（其他）
你知道汤姆住哪儿吗？
时 1.主句是一般现在时，从句根据 I hear Joe left for Beijing yesterday.
总结：选择关系代词三部曲（who ,whom, whose, which, that）
《三大从句复习》课件
《三大从句复习》ppt课件
目录
• 名词性从句复习 • 定语从句复习 • 状语从句复习 • 从句的省略形式复习 • 从句与主句的时态和语态关系复习
01
名词性从句复习
主语从句
01
定义
用作主语的从句。
02
结构
关联词+简单句。
03
04
用法
主语从句在句子中充当主语， 表达主语所指的内容。
注意事项
主语从句后必须使用陈述句语 序，且不可省略关联词。
从句中的虚拟语气
01
概述
虚拟语气是一种特殊的语气，用于表示假设、条件或与现实相反的情况
。在从句中，虚拟语气用于强调与现实情况的差异或表达假设的情况。
02
规则
虚拟语气在从句中的使用取决于特定的上下文和语境。虚拟语气通常用
于表示假设、条件、建议或与现实相反的情况。
03
例子
If I were you, I would choose that option. (如果我是你，我会选择
常用的原因状语从句引导词有 because、since、as等。
原因状语从句可以表示动作发生的原 因或理由，也可以表示结果。
条件状语从句
条件状语从句用于描述动作发生的条件或前提。 条件状语从句的时态要与主句时态保持一致。
常用的条件状语从句引导词有if、unless、provided等 。
条件状语从句可以表示一种假设条件或实际条件。
interesting.（我从图书馆借的 那本书很有趣。）
非限定性定语从句
总结词
非限定性定语从句对先行词进行补充说明，可以省略。
详细描述
非限定性定语从句用于补充说明先行词的情况、性质、特 征等，使句子更加完整。在句子中，非限定性定语从句可 以省略，不影响句子的意义。
目录
• 名词性从句复习 • 定语从句复习 • 状语从句复习 • 从句的省略形式复习 • 从句与主句的时态和语态关系复习
01
名词性从句复习
主语从句
01
定义
用作主语的从句。
02
结构
关联词+简单句。
03
04
用法
主语从句在句子中充当主语， 表达主语所指的内容。
注意事项
主语从句后必须使用陈述句语 序，且不可省略关联词。
从句中的虚拟语气
01
概述
虚拟语气是一种特殊的语气，用于表示假设、条件或与现实相反的情况
。在从句中，虚拟语气用于强调与现实情况的差异或表达假设的情况。
02
规则
虚拟语气在从句中的使用取决于特定的上下文和语境。虚拟语气通常用
于表示假设、条件、建议或与现实相反的情况。
03
例子
If I were you, I would choose that option. (如果我是你，我会选择
常用的原因状语从句引导词有 because、since、as等。
原因状语从句可以表示动作发生的原 因或理由，也可以表示结果。
条件状语从句
条件状语从句用于描述动作发生的条件或前提。 条件状语从句的时态要与主句时态保持一致。
常用的条件状语从句引导词有if、unless、provided等 。
条件状语从句可以表示一种假设条件或实际条件。
interesting.（我从图书馆借的 那本书很有趣。）
非限定性定语从句
总结词
非限定性定语从句对先行词进行补充说明，可以省略。
详细描述
非限定性定语从句用于补充说明先行词的情况、性质、特 征等，使句子更加完整。在句子中，非限定性定语从句可 以省略，不影响句子的意义。
初中三大从句复习通用课件
限定性定语从句与非限定性定语从句
限定性定语从句
对所修饰的名词或代词进行必要限定，不可省略，否则主句意思不完整。
非限定性定语从句
对所修饰的名词或代词进行补充说明，可以省略，不影响主句意思。
常见句型与表达方式
常见句型
先行词+关系代词/关系副词引导的从 句
表达方式
使用that、which等关系代词引导定 语从句时，要注意在从句中充当成分； 使用when、where等关系副词引导定 语从句时，要注意表示时间、地点等 意义。
状语从句转换为简单句
总结词：强调重点
详细描述：将状语从句转换为简单句，可以突出句子中的重点信息，使得读者更加关注该部分内容。例如，“If you study hard, you will succeed.”可以转换为“You will succeed, if you study hard.”
从句的运用与练习
常见句型与表达方式
要点一
总结词
状语从句有一些常见的句型和表达方式。
要点二
详细描述
时间状语从句中常用的表达方式有“when+一般现在时态 ”、“when+现在进行时态”、“when+一般过去时态” 等。条件状语从句中常用的表达方式有“if+一般现在时态 ”、“if+现在进行时态”、“if+一般过去时态”等。此 外，还有一些固定的表达方式，如“as soon as+一般现 在时态”、“unless+一般现在时态”等。
初中三大从句复习通 用课件
目录
• 定语从句 • 状语从句 • 从句的转换与省略 • 从句的运用与练习
名词性从句
定义与特点
总结词
名词性从句是句子充当名词或名 词短语的从句，具有完整的主谓 结构。
《三大从句复习》课件
2
作用和意义
副词性从句可以表达时间、条件、原因、括“因为”、“当”、“如果”、“虽然”和“尽管”等。需要注意不同从句的语气和时态。
名词性从句练习
练习1
你知道“同乐城”的意思吗？
练习2
我们应该做什么来保护环境？
练习3
你读过什么好书吗？
形容词性从句练习
1 练习1
《三大从句复习》PPT课 件
A comprehensive review of the three main types of clause: noun clauses, adjective clauses, and adverbial clauses.
名词性从句
定义和特点
名词性从句在句子中充当一个 名词的角色，可以作主语、宾 语或表语。
引导词及使用
常见引导词包括“that”、“which”和“who”。要 特别注意在修饰人时应使用“who”。
作用和意义
形容词性从句可以用来修饰或描述其他词，使 句子更加精细。
注意事项
应注意形容词性从句中的主句和从句之间的语 序和时态，避免出现错误。
副词性从句
1
定义和特点
副词性从句是在从句中充当副词的角色，修饰限定主句的谓语动词、形容词或副词等。
作用和意义
名词性从句可以使句子更多样 化和精练，增加句子表达力。
引导词及使用
常见引导词包括“关于”、“因为”、 “如果”等。应根据句子需要选择 合适的连词。
注意事项
留意谓语动词的时态，确定该 用陈述语气还是虚拟语气。
形容词性从句
定义和特点
形容词性从句用来描述一个名词或代词，并且 通常使用一个连词引导，如“that”。
那个长得像你的女孩子在做什么？
高考英语三大从句精讲精品PPT课件
2. 先行词被all, few, little, much, every, some, no等词修饰或被the only, the very, the same, the last 等限定词修饰时。例 如：
These are all the pictures that I have seen.
This is the very dictionary that is of great help.
5. 先行词被形容词最高级或序数词 修饰时。例如：
This is the best English film that I have ever seen.
The first English novel that I read was A Tale of Two Cities.
6. 主句是who 或which 引导的特殊问 句时。例如：
解决定语从句题目的关键：
把先行词代入从句，重新组成句子；
先行词做状语，用关系副词（when， where，how）
先行词做主语、宾语，用关系代词 （that，which，who，whom）
What不能用在定语从句中。
There is a market around —— you could get all —— you need。 One of his brothers is a teacher，— —I want to be。
介词+where/when: 当先行词具有唯一 性的时候，需要用介词+where或者 when，相当于：介词+which place或 者介词+which time：
You may call on me from one to five o’clock, during _____ I am always at home.
英语语法 三大从句(149ppt).
答案：D
2． (2013· 北京高考)________ makes the book so extraordinary is the creative imagination of the writer. A．That C．Who B．What D．Which
解析：考查主语从句。句意：让这本书如此非凡的是作者 创造性的想象力。所填词引导主语从句，并在从句中作主 语，故选 B。
1．(2013· 江苏高考)In the global economy, a new drug for cancer, ________ it is discovered, will create many economic possibilities around the world. A．whatever C．wherever B．whoever D．whichever
(2) 表示模糊的地点和抽象意义的地点 ( 常见的先行词有 race, job, activity, case, situation, point, position, stage, degree 等)， 但这些词在从句中作主语或宾语时用 that/which。 They have reached the point where they have to separate with each other.(作状语) 他们已经到了必须分手的地步。 Remember that there is still one point which we must make clear at the conference tomorrow.(作宾语) 记住在明天的会议上我们还有一点必须弄清楚。
解析：考查宾语从句。句意：Jerry 不后悔给出评论，但是 觉得自己本来可以用不同的方式来表达。 that he could have expressed it differently 是由 that 引导的宾语从句，作 felt 的宾语。that 在从句中不作成分。
三大从句(定语从句 状语从句 名词性从句)初中英语专项复习课件
定语从句详解
The boys who are playing football are from Class One. I still remembered the day when I met you.
定语从句的补充
1.定语从句和同位语从句的区别
The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name.
一个漂亮的女孩。 a pretty girl I know a pretty girl. The girl likes singing.
句子成分概述
定语：用于修饰名词或代词。
一个漂亮的女孩。 a pretty girl I know a pretty girl. The girl likes singing. I know a pretty girl who likes singing.
定语从句的补充
定语从句的省略
As the roles men and women played in society became more rigidly defined, so did the roles they played in the home．
状语从句
问题：在一个简单句中，什么词能做状语？
名词性从句实战
例句1：
What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real.
从句分类专题PPT课件
3 This is the best film that I have ever seen.这是我看过的最好的电影。
4 We talked about the persons and things that we remembered.我们谈起了 我们记得的人和事。
5 He is the only man that I want to see. 他是我唯一想见的人。
③先行词有形容词最高级和序数 词修饰时；
④先行词既指人又指物时；
⑤先行词被the only, the very修 饰时；
⑥句中已经有who或which时；
1 He told me everything that he knows. 他把他知道的一切都告诉我。
2 All the books that you offered have been given out.你拿来的所有的书都发 出去了。
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关系词
关 系 which 代 词
先行词 从句成分
例句
备注
whom,
It’s a question which needs which
careful consideration.
和that在从句
物 主语,宾语 那是个需要认真思考的问题。 中做宾语时，
可用 for which
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二 定语从句中that与which, who, whom的用法区别
情况
用法说明
例句
只用that的 情况
①先行词为all, everything, anything, nothing, little, much等 不定代词时；
4 We talked about the persons and things that we remembered.我们谈起了 我们记得的人和事。
5 He is the only man that I want to see. 他是我唯一想见的人。
③先行词有形容词最高级和序数 词修饰时；
④先行词既指人又指物时；
⑤先行词被the only, the very修 饰时；
⑥句中已经有who或which时；
1 He told me everything that he knows. 他把他知道的一切都告诉我。
2 All the books that you offered have been given out.你拿来的所有的书都发 出去了。
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关系词
关 系 which 代 词
先行词 从句成分
例句
备注
whom,
It’s a question which needs which
careful consideration.
和that在从句
物 主语,宾语 那是个需要认真思考的问题。 中做宾语时，
可用 for which
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二 定语从句中that与which, who, whom的用法区别
情况
用法说明
例句
只用that的 情况
①先行词为all, everything, anything, nothing, little, much等 不定代词时；
英语三大从句讲解[优质ppt]
![英语三大从句讲解[优质ppt]](https://img.taocdn.com/s3/m/fafa31a5aef8941ea66e055d.png)
6.The news that our team has won the games was true.
7.It was obvious that you've made a big mistake.
8.He will talk to us about what he saw in the school.
)原因状语从句：because= in that , as )目的状语从句：so that, in order that )结果状语从句：so...that, such...that )条件状语从句：if，unless ）让步状语从句：though, although, even
if, even though
引导词particle
1.引导名词性从句的连接词可分为三类： 连接词：that, whether, if (不充当从句的
任何成分） 连接代词：what, whatever, who, whoever,
whom, whose, which 连接副词：when, where, how, why
2.引导定语从句的连接词
引导定语从句的关系副词 When=on(in,during…)which
关系副词 where=on(in,in front of…)which Why=for which
如何选用定语从句的关系词
1.首先分清主句和定语从句
2.确定定语从句的先行词
3.把先行词带回到定语从句中去，看其 在定语从句中做什么语法成分（主语， 宾语，定语或状语）
clause
1. 名词性从句（substantive clauses): 主语从句subject clause、宾语从句 object clause、表语从句 predicative clause、同位语从句 appositive clause.
7.It was obvious that you've made a big mistake.
8.He will talk to us about what he saw in the school.
)原因状语从句：because= in that , as )目的状语从句：so that, in order that )结果状语从句：so...that, such...that )条件状语从句：if，unless ）让步状语从句：though, although, even
if, even though
引导词particle
1.引导名词性从句的连接词可分为三类： 连接词：that, whether, if (不充当从句的
任何成分） 连接代词：what, whatever, who, whoever,
whom, whose, which 连接副词：when, where, how, why
2.引导定语从句的连接词
引导定语从句的关系副词 When=on(in,during…)which
关系副词 where=on(in,in front of…)which Why=for which
如何选用定语从句的关系词
1.首先分清主句和定语从句
2.确定定语从句的先行词
3.把先行词带回到定语从句中去，看其 在定语从句中做什么语法成分（主语， 宾语，定语或状语）
clause
1. 名词性从句（substantive clauses): 主语从句subject clause、宾语从句 object clause、表语从句 predicative clause、同位语从句 appositive clause.
高中英语三大从句综合复习(共63张PPT)
从句
从句
1. 名词性从句 1）主语从句 2）宾语从句 3）表语从句 4）同位语从句
2. 定语从句 3. 状语从句
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。 That she was chosen made us very happy. Whether he will come is not clear. It is not important who will go. It is still unknown which team will win the match.
4. it 可以作为形式宾语，而真正的宾语that 从句则放在句尾，特 别是在带复合宾语的句子中。 We heard it that she would get married next month.
5. 后边不能直接跟that 从句的动词 allow, refuse, let, like, cause, force, admire, condemn, celebrate, dislike, love, help, take, forgive, etc. 这类词后可以用不定式或动名词作宾语，但不可以用that引导的 宾语从句。 I admire their winning the match. (√) I admire it that they won the match. (√) I admire that they won the match. (X)
1. 作动词的宾语 (1) 由that引导的宾语从句（that 通常可以省略） I heard that be joined the army. (2) 由what, whether (if) 引导的宾语从句 She did not know what had happened. I wonder whether you can change this note for me. (3) 动词＋间接宾语＋宾语从句 She told me that she would accept my invitation.
从句
1. 名词性从句 1）主语从句 2）宾语从句 3）表语从句 4）同位语从句
2. 定语从句 3. 状语从句
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。 That she was chosen made us very happy. Whether he will come is not clear. It is not important who will go. It is still unknown which team will win the match.
4. it 可以作为形式宾语，而真正的宾语that 从句则放在句尾，特 别是在带复合宾语的句子中。 We heard it that she would get married next month.
5. 后边不能直接跟that 从句的动词 allow, refuse, let, like, cause, force, admire, condemn, celebrate, dislike, love, help, take, forgive, etc. 这类词后可以用不定式或动名词作宾语，但不可以用that引导的 宾语从句。 I admire their winning the match. (√) I admire it that they won the match. (√) I admire that they won the match. (X)
1. 作动词的宾语 (1) 由that引导的宾语从句（that 通常可以省略） I heard that be joined the army. (2) 由what, whether (if) 引导的宾语从句 She did not know what had happened. I wonder whether you can change this note for me. (3) 动词＋间接宾语＋宾语从句 She told me that she would accept my invitation.
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为保持句子平衡， that 引导主语从句时，常用it作形式主语 而把真正的主语从句后置。主要有以下几种情况：
① It is +n. ( a pity / a shame / a fact / no wonder ,etc )+ that-clause It is a fact that English is being accepted as an international language. It is no wonder that he is not hungry; he has been eating sweets all day.
② It is +adj. ( certain / likely / probable / true , etc.) + that-clause It is probable that he told her everything. It is true that the scientist will give us a lecture next week.
⑤其他情况: It doesn’t matter whether he will come or not. It makes no difference where we had the meeting. It suddenly occurred to me that she had forgotten to lock the door.
6
连接词的用法 (二)
▪ 2. whether 和 if 连词whether和 if表“是否”之意，在 从句中不可省略。 在下列情况中只用whether不用if: ⑴ 引导主语从句、表语从句和同位语从句时； The question is whether it is worth trying. Whether she comes or not makes no difference. I have no idea whether I should believe him or not. ⑵ 从句作介词的宾语时； Ryan was worrying about whether he had hurt her feelings. ⑶ or not紧随其后时；I don’t care whether or not he has a holiday. ⑷ 后接不定式时。 She can’t decide whether to go.
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连接词的用法 (五)
▪ 5. whoever, whomever, whatever, whichever, whosever 连接代词 whoever=anyone who, whomever= anyone whom , whatever= anything that , whichever=anything that .如： Whoever comes to the club is welcome. Whatever is worth doing at all is worth doing well. You may do whatever you will. Whosever book is overdue will be fined. You may offer the book to whoever wants it. You may offer the book to whomever you like.
7
连接词的用法 (三)
３．Who, whom, whose, what, which
连接代词Who, whom, whose, what, which等 在从句中既起连接作用，又担当主语、宾语、表 语等成分，并保留其特殊疑问词词义。如：
No one knows who he was waiting for. Tell me whose house it is. Let me know which train you will be arriving on.
5
③ It is +p.p. (said / reported /believed ,etc. )+that-clause It is reported that China has sent another man-made satellite into orbit.
④ It +v. (seems / happened, etc. )+that-clause It seems that Alice is not coming to the party at all. It happened that I was out that day.
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连接词的用法 (四)
▪ ４． where, when, why, how 连接副词where, when, why, how等在从句中作状 语，其词义与特殊疑问词词义相同。 I don’t know where we are going to have the meeting. She always thinks of how she can work well. What I’m anxious to know is when we can visit the museum. Please tell me when you will arrive.
英语三大类从句之用法与比较
1
从句概述
• 从句只能做主句的某一部分,依附于主句 而存在,不能独立。
• 从句也具有句子的特征，即有自己的主 谓结构；而且带有引导词。
• 根据从句在句中的作用，可分为名词性 从句、形容词性（定语）从句和副词性 （状语）从句三类。
2
一、名词性从句
名词性从句包括主语从句、宾语从句、表语从句和同位语从句。其关 联词有连词that, if, whether；连接代词what, who, which和连接副 词when, where, why, how等。
从句
连接词
主语从句
宾语从句
介词后 宾语从句
形容词后 宾语从句
表语从句
同位语从句
that
whether
if Wh- 词（含 how) 带后缀－ ever的词
3Байду номын сангаас
连接词的用法 (一)
1. that 连词 that本身无实际意义，在从句中 不担当任何成分，在宾语从句中有时可以省 略。如： I hear (that) he has joined the football club. That light travels in a straight line is known to all. Is it certain that they will win?
为保持句子平衡， that 引导主语从句时，常用it作形式主语 而把真正的主语从句后置。主要有以下几种情况：
① It is +n. ( a pity / a shame / a fact / no wonder ,etc )+ that-clause It is a fact that English is being accepted as an international language. It is no wonder that he is not hungry; he has been eating sweets all day.
② It is +adj. ( certain / likely / probable / true , etc.) + that-clause It is probable that he told her everything. It is true that the scientist will give us a lecture next week.
⑤其他情况: It doesn’t matter whether he will come or not. It makes no difference where we had the meeting. It suddenly occurred to me that she had forgotten to lock the door.
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连接词的用法 (二)
▪ 2. whether 和 if 连词whether和 if表“是否”之意，在 从句中不可省略。 在下列情况中只用whether不用if: ⑴ 引导主语从句、表语从句和同位语从句时； The question is whether it is worth trying. Whether she comes or not makes no difference. I have no idea whether I should believe him or not. ⑵ 从句作介词的宾语时； Ryan was worrying about whether he had hurt her feelings. ⑶ or not紧随其后时；I don’t care whether or not he has a holiday. ⑷ 后接不定式时。 She can’t decide whether to go.
9
连接词的用法 (五)
▪ 5. whoever, whomever, whatever, whichever, whosever 连接代词 whoever=anyone who, whomever= anyone whom , whatever= anything that , whichever=anything that .如： Whoever comes to the club is welcome. Whatever is worth doing at all is worth doing well. You may do whatever you will. Whosever book is overdue will be fined. You may offer the book to whoever wants it. You may offer the book to whomever you like.
7
连接词的用法 (三)
３．Who, whom, whose, what, which
连接代词Who, whom, whose, what, which等 在从句中既起连接作用，又担当主语、宾语、表 语等成分，并保留其特殊疑问词词义。如：
No one knows who he was waiting for. Tell me whose house it is. Let me know which train you will be arriving on.
5
③ It is +p.p. (said / reported /believed ,etc. )+that-clause It is reported that China has sent another man-made satellite into orbit.
④ It +v. (seems / happened, etc. )+that-clause It seems that Alice is not coming to the party at all. It happened that I was out that day.
8
连接词的用法 (四)
▪ ４． where, when, why, how 连接副词where, when, why, how等在从句中作状 语，其词义与特殊疑问词词义相同。 I don’t know where we are going to have the meeting. She always thinks of how she can work well. What I’m anxious to know is when we can visit the museum. Please tell me when you will arrive.
英语三大类从句之用法与比较
1
从句概述
• 从句只能做主句的某一部分,依附于主句 而存在,不能独立。
• 从句也具有句子的特征，即有自己的主 谓结构；而且带有引导词。
• 根据从句在句中的作用，可分为名词性 从句、形容词性（定语）从句和副词性 （状语）从句三类。
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一、名词性从句
名词性从句包括主语从句、宾语从句、表语从句和同位语从句。其关 联词有连词that, if, whether；连接代词what, who, which和连接副 词when, where, why, how等。
从句
连接词
主语从句
宾语从句
介词后 宾语从句
形容词后 宾语从句
表语从句
同位语从句
that
whether
if Wh- 词（含 how) 带后缀－ ever的词
3Байду номын сангаас
连接词的用法 (一)
1. that 连词 that本身无实际意义，在从句中 不担当任何成分，在宾语从句中有时可以省 略。如： I hear (that) he has joined the football club. That light travels in a straight line is known to all. Is it certain that they will win?