各类从句讲义

合集下载

英语四大从句完整讲解版PPT课件

宾语从句
whether / if引导的宾语从句特殊疑问词引导的宾语从句
19
what, wh-ever 引导的宾语从句
We shall not forget when ( = the time when ) the meeting will open.
She walked up to where (= the place where) he stood.
still a problem. 当it 作形式主语，主语从句放在句末时用 whether 或if 均可。
他是否会来这还令人怀疑.
? It is doubtful __w_h_e_t_h_e_r/_i_f_ he will come
here.
7
主语从句
that 引导的主语从句 that 一般不能省
? that 是否可以省略?
23
that 引导的表语从句
表语从句
24
whether / if引导的表语从句 The problem is whether the meeting will be given.
? 此时的whether 是否可以用if 替换?
25
that 引导的表语从句 whether 引导的表语从句
whether or not I don’t care _w_h_e_t_h_er_ or not he comes. whether + to do I don’t know _w_h_e_th_e_r_ to go there.
介词后只能用whether It depends on _w__h_e_th_e_r__ you can do the work
She will give whoever (= anyone who) needs help a warm support.

高中英语语法讲义——名词性从句(主从、表从、宾从,同从)

高中英语语法讲义---- 名词性从句（主从、表从、宾从，同从）1，陈述句做名从用连词that + SV, that 表主句肯定从句完整，不做成分。

主从可用it 做形式主语，宾从第一个that 可省略。

You study hard.主从：That you study hard is known to us.= It is known to us that you study hard.表从：My opinion is that you study hard .宾从：I think (that) you study hard. …and that (不能省略)….同从：My opinion that you study hard is known to us. *比较同从和主从！●一般抽象名词后对其进行解释和说明的完整句子就是其同位语从句，不完整就是定语从句。

I appreciate your idea that we have an exam every week. （that后完整—同从）I appreciate your idea that you came up with last time.（that后不完整---定从）2，一般问句做名从用连词whether(是否) + SV，whether表主句不肯定从句完整，宾从中可用if（介词后或宾从后有or not时只用whether）。

Does your friend like English ?主从：Whether your friend likes English isn’t clear .=It isn’t clear whether your friend likes English.表从：My question is whether your friend likes English.宾从：I don’t know whether/ if your friend likes English.同从：My question whether your friend likes English isn’t clear.3, 特殊问句做名从用疑问词（连词）+ SV, 疑问词做主语时直接+谓语。

2023届高考英语语法名词性从句精讲之四大从句用法大全讲义

2023年高中英语语法名词性从句精讲之：四大从句用法大全主语从句主语从句的概念：如果一个句子在复合句中充当一个主语，那么这个句子就是主语从句。

主语从句通常由从属连词that，whether，if和连接代词what，who，which whatever，whoever以及连接副词how，when，where，why等词引导。

that在句中无词义，只起连接作用。

主语从句用法：1、主语从句的引导词：主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导：如：That he is still alive is a wonder. 他还活着，真是奇迹。

When we arrive doesn't matter. 什么时候到没有关系。

What we need is money. 我们需要的是钱。

What I want to know is this. 我想知道的就是这一点。

Whether they would support us was a problem. 他们是否会支持我们还是一个问题。

2、主语从句与形式主语it：有时为了考虑句子平衡，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。

这分三种情况：(1)对于以连词that引导的主语从句，通常用形式主语代主语从句：如：It's a pity that he didn't come. 很遗憾他没来。

(2)对于以连接代词(副词)引导的主语从句，可以使用形式主语代主语从句，也可直接在句首使用主语从句：如：Whether they would support us was a problem. 他们是否会支持我们还是一个问题。

It was a problem whether they would support us. 他们是否会支持我们还是一个问题。

(3)对关系代词型what引导的主语从句，通常不用形式主语，总是主语从句放在句首：如：What we need is money. 我们需要的是钱。

名词从句讲义

第四讲名词性从句一、知识点拨（一）宾语从句（Object Clause）同学们在初中阶段时就开始接触宾语从句了。

当将一个直接引语转为间接引语时，就是在构造一个与“说”相关的动词后的宾语从句了。

在直接引语向间接引语转化的过程中，应就不同的句型类别进行不同的处理。

而不同的句型类别都应根据转述者和转述时间对宾语从句中的人称、时态及状语作相应的调整。

1.陈述句: 不需调整语序，只要对人称，时态或状语作一定的变化即可。

通常，若主句中的动词为过去时，则从句中的时态也要相应后退一格。

但如从句部分是客观真理，时态则务须变化。

如：①When the fox could not reach the grapes, he said, “The grapes are sour.”→ When the fox could not reach the grapes, he said that the grapes were sour.②She said, “Necessity is the mother of invention”→She said that necessity is the mother of invention.2.疑问句：可分为一般疑问句和特殊疑问句两类。

⑴一般疑问句: 转为if 或whether（是否）引导的宾语从句，且调整为陈述句语序，即主谓宾的顺序。

有时可用或whether … or not的结构。

如：“Do you want to insure your luggage or not?” he asked.⑵但当疑问词即是句子中的主语，则无需变换语序。

如：①“How are you getting along with your English study?” asked John.→ John asked me how I was getting along with my English study.②He asked, “What caused the accident?” → He asked what had caused the accident.3.祈使句: 可不再转为宾语从句，而是用“命令性动词+ 人称代词（宾格）/名词+ 不定式”的结构来表达相近的意思。

高中英语状语从句精讲讲义(上)

高中英语状语从句精讲讲义（上）时间，地点，条件状语从句一、时间状语从句1．when, while, as①When he knocked at the door, I was working at the table.(2015·海淀区质检)②I want the girls to experience that while they are young.③As speech develops, the child starts to string more words together.随着语言能力不断发展，孩子开始把更多的词连起来说。

④When/While/As I was walking down the street, I came across an old friend of mine.[规律总结](1)when 既可引导一个持续动作，也可引导一个短暂动作，可用于主句和从句动作同时发生或从句动作先于主句动作。

(2)从属连词while 引导的动作必须是持续性的，侧重主句动作和从句动作相对比。

(3)从属连词as 可表示从句和主句的两个动作交替进行或同时完成，可译为“一边……，(一边……)”或“随着……”。

(4)如果主句表示的是短暂性动作，而从句用延续性动词的进行时态表示在一段时间内正在进行的动作，此时when, while 与as 可互换使用。

2．when 的特殊用法①Tom was about to close the window when his attention was caught by a bird.(2015·开封模拟)②One Friday, we were packing to leave for a weekend away when my daughter heard cries for help.(2011·浙江高考单项填空)③He had just finished his homework when his mother asked him to play the piano.[规律总结](1)when 意为“正在这时”，表示某件事正在发生或刚刚发生时，突然发生另一动作。

《定语从句》讲义

《定语从句》讲义一、定语从句的定义和作用定语从句是一种在英语中非常常见且重要的语法结构。

它在句子中充当定语，用来修饰一个名词或代词，使其含义更加明确和丰富。

简单来说，定语从句就是一个句子，放在被修饰的名词或代词后面，起到描述和限定的作用。

通过定语从句，我们能够更详细、更准确地表达我们想要表达的意思。

比如，“The book that I bought yesterday is very interesting”（我昨天买的那本书非常有趣。

）在这个句子中，“that I bought yesterday”就是一个定语从句，用来修饰先行词“the book”，让我们清楚知道是哪一本书有趣。

二、定语从句的构成定语从句通常由关系词（关系代词或关系副词）引导。

常见的关系代词有：that、which、who、whom、whose。

常见的关系副词有：when、where、why。

关系词在定语从句中不仅起到引导的作用，还在从句中充当一定的成分。

例如，在“The man who is standing there is my teacher”这个句子中，“who”是关系代词，在从句“who is standing there”中作主语。

三、关系代词的用法1、 that 和 whichthat 和 which 都可以用来指代物，但在一些情况下，只能用 that 不能用 which。

当先行词是不定代词（如 all、anything、nothing 等）、先行词被最高级、序数词修饰、先行词既有人又有物时，通常用 that 而不用 which。

例如：All that glitters is not gold（发光的未必都是金子。

）This is the first book that I have read（这是我读过的第一本书。

）The man and the horse that fell into the river were drowned（掉进河里的人和马都淹死了。

名词性从句讲义-高三英语一轮复习

一．概念：名词性从句就相当于一个名词（因为名词可以充当主语，宾语和表语，所以名词性从句包含主语从句，宾语从句和表语从句和同位语从句）二．名词性从句主语从句That she is beautiful is a fact.主语从句系定表宾语从句We know that she is beautiful.主谓宾语从句表语从句 Our opinion is that she is beautiful.主系表语从句同位语从句The opinion that she is beautiful is a fact.主同位语从句系定表三．名词性从句的格式 1. that+陈述句=名词宾1.结构：主语 + 谓语2.语序：陈述句语序3.连接词 :①由that 引导②由if /whether 引导know if / whether Hua likes fish.③由特殊疑问词引导，表示特殊疑问意义 I want to know what time it is now.4.时态①当主句是一般现在时，从句根据情况使用任何时态。

（即：主现从不限）I don’t know (that) she is singing now.②当主句是一般过去时，从句应使用过去某时态(一般过去时,过去进行时，过去将来时，过去完成时)。

He said (that) he was at home. 他说他在家里。

③主句使用一般过去时，但从句表示的是客观真理、自然现象时、从句仍用一般现在时。

The teacher told us light travels faster than sound.一、一般结构：主语+连系动词+表语从句，二、可以接表语从句的词有：①be(being, been, am ,is, are, was, were)（be动词）② feel,look,sound, taste, smell (感官动词）③ stand, lie,remain, keep, stay(保持动词）④bee, get, grow, turn ,go ,prove(变化动词）⑤ seem, appear(表象动词)三、公式：a.由连接词that（无意义）, whether（是否）引导的表语从句这时主句的主语常常是抽象名词，如problem, result, chance, suggestion, question, reason 等，表语从句对主句主语进行说明，解释等。

名词性从句讲义

名词性从句讲义名词性从句名词性从句分为：主语从句、宾语从句、同位语从句及表语从句。

它们的共同点是相当于名词的作用。

考点一、名词性从句中的连接词问题。

1.连接词：that 无词义，不做成分；whether/if是否，不做成分；2.连接代词: who（主、表）; whoever（主、表）;whom （宾）;whose（主、宾、表、定）;which(定、主“哪一个\些”); whatever（主、宾、表、定）3.连接副词：how; when; where; why; because在从句中均作状语Eg.选用恰当的连接词填空并辨别何种从句。

1) The main ideas were that all people are brothers and sisters, and that all people should be treated equally.（表语从句）2) That we are invited to a concert this evening is a piece of good news to us.(主语从句)3) He demanded (that) everyone be equal.(宾语从句)4) Word came that Napolean would come to inspect.(同位语从句)5）Whether we shall go is unknown.(主语从句)→It is unknown whether/if we shall go.6) I don’t know what is happen ing over there.（宾语从句）7) The boss couldn’t decide which of them should be fired.(宾语从句)8) The book is where you left it.(表语从句)9) The problem how we can get there on time is left unsettled.(同位语从句)10) That was because he fell ill.(表语从句)11) It worried her a bit _____ her hair was turning grey.A. whileB. thatC. ifD. for12) Great changes have taken place in that school. It is no longer ______ it was 20 years ago, _____ it was so poorly equipped. （05安徽卷）A. what; whenB. that; whichC. what; whichD. which; that13) I was surprised by her words, which made me recognize___ silly mistakes I had made.（05湖南卷） A. what B. that C. how D. which14) Parents are taught to understand ______ important education is to their children’s future.（04广东） A. that B. how C. such D. so15) I’d like to work with__ is honest and easy to get on with.A. whoB. whoeverC. whomeverD. no matter who16) Give it to ___ you like.A. anyoneB. whoeverC. whomeverD. no matter who考点二：名词性从句中的语序问题1).The photographs will show you ____ ．A. what does our village look likeB. what our village looks likeC. how does our village look likeD. how our village looks like2). He asked ____for a violin.A. did I pay how muchB. I paid how muchC. how much did I payD. how much I paid3).Someone is ringing the doorbell. Go and see ____.A. who is heB. who he isC. who is itD. who it is考点三|：名词性从句中what 与that的区别What在名词性从句中可充当主语，宾语和表语，意义相当于the thing(s) that，引导主语从句时，其谓语动词的单复数依句意而定。

名词性从句讲义教案

名词性从句讲义教案章节一：名词性从句简介1. 目的：让学生了解名词性从句的概念和作用。

2. 内容：（1）名词性从句的定义：名词性从句是一种句子成分，具有名词的性质，可以作为主语、宾语、表语等。

（2）名词性从句的分类：根据句子成分的不同，名词性从句分为宾语从句、主语从句、表语从句和同位语从句。

3. 教学活动：（1）引导学生思考日常生活中遇到的疑问词，如“谁”、“什么”、“哪儿”等。

（2）通过例句展示名词性从句在句子中的作用，如主语、宾语、表语等。

章节二：宾语从句1. 目的：让学生掌握宾语从句的构成和用法。

2. 内容：（1）宾语从句的构成：疑问词+ 陈述句的语序。

（2）宾语从句的用法：作为动词、介词的宾语。

3. 教学活动：（1）通过疑问词引导学生识别宾语从句。

（2）举例说明宾语从句在句子中的用法，如“I saw a movie yesterday.”。

章节三：主语从句1. 目的：让学生掌握主语从句的构成和用法。

2. 内容：（1）主语从句的构成：疑问词+ 陈述句的语序。

（2）主语从句的用法：作为主语，表示话题或陈述对象。

3. 教学活动：（1）通过疑问词引导学生识别主语从句。

（2）举例说明主语从句在句子中的用法，如“That she is ing is good news.”。

章节四：表语从句1. 目的：让学生掌握表语从句的构成和用法。

2. 内容：（1）表语从句的构成：疑问词+ 陈述句的语序。

（2）表语从句的用法：作为表语，补充说明主语的内容。

3. 教学活动：（1）通过疑问词引导学生识别表语从句。

（2）举例说明表语从句在句子中的用法，如“The problem is that we don't have enough time.”。

章节五：同位语从句1. 目的：让学生掌握同位语从句的构成和用法。

2. 内容：（1）同位语从句的构成：疑问词+ 陈述句的语序。

（2）同位语从句的用法：与前面的名词或代词共同作主语、宾语或表语，起到解释说明的作用。

从句综合讲解

一、名词性从句名词性从句主要分为四大类：主语从句、宾语从句、表语从句和同位语从句。

<一>主语从句1.that引导的主语从句that引导的主语从句既可以放在句首也可以放在句末，在实际应用中我们常常采用it形式主语的形式。

例句：That he passed the English test is true. 千真万确，他通过了英语考试。

→It is true that he passed the English test.2.形式主语的四个主要句型（1）It + be + 名词 + that从句例：It is a pity that…可惜的是可应用于此句型的名词还有fact / shame / honor / question等。

（2）It + be + 形容词 + that从句例：It is certain that…很肯定可应用于此句型的形容词还有clear / better / natural / important 等。

（3）It + be + 动词的过去分词 + that从句例：It is said that…据说可应用于此句型的过去分词还有believed / known / reported等。

（4）It + 不及物动词 + that 从句例：It seems that…好像是可应用于此句型的不及物动词还有happen / appear 等。

3.wh-引导的主语从句例句：Where we will go hasn’t been decided. 我们要去哪儿还没定下来。

<二>宾语从句1.that引导的宾语从句that常用来引导宾语从句，通常that可以省略。

例句：He has told me that he will go to Shanghai tomorrow.他已经告诉我他明天要去上海。

注意：在demand、order、suggest、decide等表示要求、命令、建议、决定等意义的动词后，that从句常用“（should） + 动词原形”的结构（参考“虚拟语气”部分）。

高中英语语法专题讲义：三大从句

名词性从句一、概念：在句中起名词作用的句子称名词性从句。

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。

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, why2、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。

例如：That she was chosen made us very happy. 她被选上了,我们很高兴。

We heard the news that our team had won. 我们听到消息说我们队赢了。

注：比较：whether与if均为"是否"的意思。

但在下列情况下,whether不能被if 取代：①whether引导主语从句并在句首②引导表语从句③whether 从句作介词宾语④从句后有"or not"大部分连接词引导的主语从句都可以置于句末,用it充当形式主语。

例如：It is not important who will go. 谁去,这不重要。

It is still unknown which team will win the match. 到底谁赢呢,形势尚不明朗。

3、名词性that-从句①由从属连词that引导的从句叫做名词性that-从句。

That只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义。

名词性that-从句在句中能充当主语、宾语、表语、同位语和形容词宾语。

例如：主语：That he is still alive is sheer luck.他还活着全靠运气。

高三英语语法讲义——名词性从句

高三语法讲义名词性从句名词性从句根据从句在复合句中的语法作用，分为主语从句、宾语从句、表语从句和同位语从句。

1) 主语从句、宾语从句和表语从句①that分句充当主语从句、宾语从句和表语从句。

例如：That she won a gold medal in the contest greatly comforted her parents. (主语从句)We all agree that honesty is the most important policy. (宾语从句)One advantage of living in the suburbs is that you can enjoy fresh air. (表语从句)②whether分句充当主语从句、宾语从句和表语从句。

例如：Whether the meeting will take place on schedule is not certain. (主语从句)I don’t care whether they will agree to my proposal. (宾语从句)My concern is whether we can benefit from the new regulations. (表语从句)③wh-分句充当主语从句、宾语从句和表语从句。

例如：What caused the accident is still unknown. (what解释为“什么”) (主语从句)What is one man’s meat may be another’s poison. (what解释为“所……的”) (主语从句)Please explain why this is impossible. (宾语从句)You have to answer for what you have done. (宾语从句)My question is when we can apply this theory to practice. (表语从句)④感叹句充当宾语从句或表语从句。

主语从句讲义

主语从句一⑴从属连词①That you will win the medal seems unlikely.That she survived the accident is a miracle.(回顾）常见形式主语句型：②Whether we will hold a party in the open air tomorrow depends on the weather.Whether she is coming or not doesn’t matter too much.注意：Whether he likes the present is unclear.⑵连接代词①What we lack is experience.What you need is more practice.Whatever we do is to serve the people.②Who will be our monitor hasn’t been decided yet.Who the watch belongs to is unknown.Whom we must study for is a question of great importance.Whoever breaks the law should be punished.注意：Whoever=anyone whoWhatever=anything that③Whichever of you comes in first will receive a prize. Whichever you want is yours.⑶连接副词When we should leave it is a problem.Where they will come hasn’t been made public.How this happened is not clear to anyone.Why he did such a thing is not clear.二It作形式主语和it引导的强调句型（区别）①It was ordered that the goods be sent there by planes.It was last summer that he graduated from the university.②It has been found out who set the record.It was Mary that/who set the record.③It was last summer when he graduated from the college.It was last summer that he graduated from the college.④It was because of the heavy snow why the train was late.It was because of the heavy snow that the train was late. 三主语从句时态：不受主句的时态影响和限制。

名词性从句讲义

名词性从句讲义一、定义：在复合句中相当于一个名词，做主语、宾语、表语、同位语的从句。

二、引导词：1. 连词: that , if, whether, as if2. 连接代词: who , what, which, whose, whom以及wh+ever3. 连接副词: when, where, why, because, how三、引导词的作用：1. 连词只有连接的功能，而不在从句中充当句子成分。

2. 连接代词和连接副词不但有连接的功能，同时还要在从句中充当特定的句子成分，主语、宾语、表语、定语、状语。

主语从句基本概念1．定义：在复合句中作句子主语的从句叫做主语从句。

2．构成：关联词+简单句3．引导主语从句的关联词有三类：连词that、whether;疑问代词who, what, which;疑问副词when, where, how, why⑴ 连词that（无词意）, whether(是否), 在从句中不充当句子成分，只起连接作用; whether能引导主语从句，而if不能。

That you don’t like him has nothing to do with me.Whether John will do this experiment remains a question.⑵ 疑问代词who, what, which, 在从句中既作连接词又充当主语、宾语、表语、定语等。

Who will be sent abroad to further his studies is not announced.What surprised me most was that such a little girl could play the violin so well.Which school will win the prize is not known.Whose dictionary has not been found is still unknown.Whichever you take will be yours.Whoever wants this book may take it.Whatever was said here must be kept secret.⑶ 疑问副词when, where, how, why在从句中充当时间状语、地点状语、方式状语、原因状语When they will start hasn’t been decided yet.Where the heroine went is not mentioned at the end of the story.How he managed to finish the composition in such a short time is still a mystery.Why he often comes here is known to us all.难点1．主语从句能用it作形式上的主语，而把真正的主语放在后面。

英语从句讲义

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.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.比较：whether与if 均为"是否"的意思。

但在下列情况下，whether 不能被if 取代：1. whether引导主语从句并在句首2. 引导表语从句3. whether从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.The fact is that he didn't go to the dinner party.I don't know if he will attend the meeting.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. That-从句作主语通常用it作先行词，而将that-从句置于句末，例如：It is quite clear that the whole project is doomed to failure.很清楚，整个计划注定要失败。

各种从句讲义

公共英语二级语法知识讲解：主从复合句什么是主从复合句？就是由一个主语和一个或一个以上的从句构成的复合句。

主句是全句的主体，而从句只作为一个句子成分，不能独立存在。

从句在复合句中可以作主语、宾语、表语、定语、同位语和状语，因此从句可以分为：Ⅰ．名词性从句以下四种统称为名词性从句：ⅰ. 主语从句简单来讲，就是从句作为主语来用。

就是把从句看作一个整体，它在句子中的成分是主语成分，从而构成一个复合句。

例如：That the watermelon is sweet is a truth.主语从句在语序上可以分为两种：1、从句位于句首；2、从句移到句末，it作为形式主语放在句首，that可以省略。

例如：It is certain (that) he is alive. (改写上一句)除了用连词that引导从句之外，还可以用连词whether引导。

例如：Whether he will succeed is uncertain.改写成“It”引导= It is uncertain whether he will succeed.这是用连词that，whether引导，只是主语从句的一种引导词。

另外还有两种：连接代词和连接副词来引导。

（连接代词who, what, which, -ever; 连接副词when, where, how, why,-ever）例如：What you are doing seems very difficult.→When we’ll go to Beijing has been discussed.→ⅱ. 宾语从句从句在整句复合句中的成分是宾语成分。

如果只是把从句看作一个整体的话，它在整句话中的成分是宾语成分。

在语序上有以下四种形式：1、及物动词+从句2、形容词作表语+从句3、介词+从句4、it（形式宾语）+谓语（被动语态）+从句例如：I hope (that) you will return one day.I am afraid (that) you are wrong.I could say nothing but that I was sorry.It is heard (that) the Roberts must go to Australia on vacation this summer.造句：据信，冰岛队在这次比赛中将有不俗的成绩。

高中英语状语从句讲义

高中英语状语从句讲义一、地点状语从句地点状语从句通常由where, wherever 引导。

Where I live there are plenty of trees.Wherever I am I will be thinking of you.二、方式状语从句方式状语从句通常由as, （just） as…so…, as if, as though引导。

1）as, （just） as…so…引导的方式状语从句通常位于主句后，但在（just）as…so…结构中位于句首，这时as从句带有比喻的含义，意思是"正如…"，\"就像\"，多用于正式文体。

Always do to the others as you would be done by.Just as we sweep our rooms, so we should sweep backward ideas from our minds.2）as if, as though两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反，有时也用陈述语气，表示所说情况是事实或实现的可能性较大。

"仿佛……似的"，"好像……似的".They completely ignore these facts as if （as though） they never existed. 他们完全忽略了这些事实，就仿佛它不存在似的。

He looks as if （as though） he had been hit by lighting. 他那样子就像被雷击了似的。

It looks as if the weather may pick up very soon. 看来天气很快就会好起来。

三、原因状语从句比较because, since, as和for：1）because语势最强，用来说明人所不知的原因，回答why提出的问题。

语法讲义-从句

语法讲义一.状语从句状语从句是英语句法中比较重要的环节，可以用来表示时间、地点、原因、条件、目的、结果、方式、比较和让步等。

1. 时间状语从句1) 由as, while引导时，表主句和从句动作同时发生，或一个动作在另一个动作或状态的过程中；2) 由after, when引导时，表示主句动作在从句动作之后；3) 由before, when引导时，表示主句动作发生在从句动作之前；4) 由whenever, every / each time引导时，表示主句动作以从句动作为条件而发生；eg: We can leave when you are ready. (你什么时候准备好，我们就可以动身了。

动身这个动作是在这个人准备好了之后发生的。

)5) 由as soon as引导时，表示主句动作发生在从句动作的一瞬间之后（注意：the moment，the instant，the second，the minute都可做连词用，引导定语从句，意思是as soon as。

）；6) 由just/ hardly…when, no sooner…than引导时，表示主句动作发生在从句动作一瞬间之前。

eg: No sooner had we reached the top of the hill than we all sat down to rest.2. 原因状语从句，由because, as, since或复合连接词now that，in that等引导。

（注意：for 是连词，虽然也可以表示"因为"，但其后所接的是并列句中的一个独立句，而非从句。

）eg: Now that my head had cleared, my brain was also beginning to work much better.3. 地点状语从句，由where, wherever引导。

eg Although he knew little about the large amount of work done in the field, he succeeded where other more well-informed experimenters failed.4. 条件状语从句，由if, as (so) long as和unless引导。

各类从句讲义

各类从句讲义各类从句讲义1. 定语从句易错题：(1). It is from the school ______ we graduated.It is the school ________ we graduated.A. whereB. that(2).* Is this factory __________ your father works?* Is this the factory ___________ your father works?A. whereB. whichC. thatD. the one(3) I will tell you __________ the teacher told me yesterday.A. all whichB. all whatC. that allD. all(4) *He made another wonderful discovery, ________ of great importance to science.A. which I think isB. which I think it isC. which I think itD. I think which is*The young girl __________ we all thought should have been elected president of the class.*The young girl __________ we all thought should have been elected president of the class is my best friend.A. whomB. whoC. theyD. which(5) I’d like to buy the same dress __________ she wears today.* You have to go back the same way __________ you came.A. thatB.whichC. /D. as*I have never heard such stories __________ you told me.*I have never heard such stories __________ I am deeply move by it.A. thatB. whichC. about whichD. as(6) *Teachers should create an environment ______ children are taught how to solve problems oflearning by themselves.*There are cases _____ speech has started late in a child who eventually turns out to be of high IQ.*We have to consider what to do in situations ______ there are many people involved.A. thatB. whichC. whereD. when2. 名词性从句1). 同位语从句（在名词后）由that & wh-引导，位于名词后面，对前面news, fact, truth, idea, belief, decision, promise, order, suggestion, answer, hope, conclusion, report, truth, proposal, ect.的说明解释A. that 引导The fact that his health is failing is not true.We heard the news that Shanghai could host the 2010th world expo.I don't doubt the report that there were thousands of people who had SARS.I made a promise that ___________.B. wh-引导I have no idea how they were able to get it done in so shorta time.Have you any idea where they are having a rehearsal?The problem where I can get enough money to buy a computer hasn't been solved.I have no idea_____________.Notice:(1) 从句只是对前面名词的说明(2）与定语从句的区别*I believed the fact that he was honest.I believed the fact (that) he thought to be true.*we gave the order that his house should be pulled down.The order (that) the soldier had received came from the general.◆定语从句中名词充当成分；同位语从句中不充当成分◆定语从句中连接代词可以省略；同位语从句中连接代词不可以省略◆同位语从句中遇到order, requirement, suggestion, advice等词，要用虚拟语气You have to take my advice that you should read newspaper one hour a day.◆同位语从句离所修饰的名词可能较远Word came that the team beat the opponent.A good idea occurred to me that we can hold a fare-well party for her.*请区分定语从句和同位语从句(1) He made a promise that he would spend more time with his daughter.(2). He made a promise that he wouldn’t be able to keep.2) 宾语从句(在动词和介词后)可以由that, whether, if, wh-特殊疑问代词引导He told me that he would leave for Beijing next week.He asked me whether /if it was a long way form here to the post office.I want to know what is the most famous in Shanghai.◆We found it necessary that we practise speaking English every day.It充当形式宾语，that 引导宾语从句，是真正的宾语。

各类从句讲义

英语四大从句完整讲解版PPT课件

高中英语语法讲义——名词性从句(主从、表从、宾从,同从)

2023届高考英语语法名词性从句精讲之四大从句用法大全讲义

名词从句讲义

高中英语状语从句精讲讲义(上)

《定语从句》 讲义

名词性从句讲义-高三英语一轮复习

名词性从句讲义

名词性从句讲义教案

从句综合讲解

高中英语语法专题讲义：三大从句

高三英语语法讲义——名词性从句

主语从句讲义

名词性从句讲义

英语从句讲义

各种从句讲义

高中英语状语从句讲义

语法讲义-从句

各类从句讲义

《定语从句》讲义