4主语从句讲与练
英语句子成分和英语句子结构讲解及练习
英语句子成分和英语句子结构讲解及练习英语句子就像一座建筑，句子成分是构成这座建筑的各种材料，而句子结构则是建筑的框架。
理解句子成分和结构对于我们正确理解和运用英语至关重要。
接下来，让我们一起深入探讨。
一、英语句子成分1、主语主语是句子所描述的主体，通常是某人、某事或某物。
它是句子的核心，决定了句子要说的是谁或什么。
比如，“The dog is cute” （这只狗很可爱。
）中，“The dog”就是主语。
2、谓语谓语表示主语的动作或状态。
它通常由动词构成。
例如，“She sings beautifully” （她唱歌很好听。
）中的“sings”就是谓语。
3、宾语宾语是动作的对象，通常是接受动作的人或物。
比如，“He bought a book” （他买了一本书。
）中的“a book”就是宾语。
4、表语表语用于说明主语的特征、状态、身份等。
常见的系动词有 be （am/is/are）、seem、look 等，其后的成分就是表语。
例如，“She is happy” （她很开心。
）中的“happy”就是表语。
5、定语定语用来修饰、限定名词或代词。
它可以是形容词、名词、代词、数词、介词短语等。
例如，“The red car is mine” （那辆红色的车是我的。
）中的“red”就是定语。
6、状语状语用于修饰动词、形容词、副词或整个句子，表示时间、地点、原因、方式、程度等。
比如，“He runs fast” （他跑得很快。
）中的“fast”就是状语。
7、补语补语用于补充说明宾语或主语的情况。
例如，“We made him our monitor” （我们选他当班长。
）中的“our monitor”就是宾语补足语。
二、英语句子结构1、简单句简单句只有一个主谓结构，是最基本的句子类型。
例如，“I love you” （我爱你。
）2、并列句并列句由两个或两个以上的简单句通过并列连词（and, but, or 等）连接而成。
主语从句讲解及习题
名词性从句之主语从句一、名词性从句概述：在句子中起名词作用的各种从句统称为名词性从句。
根据它们在句中的语法作用，这类从句又可分为主语从句、同位语从句、表语从句和宾语从句。
二、主语从句定义：在句中起主语作用的从句称为主语从句。
引导主语从句的连接词主要有：单纯连词(that, whether/ if)、连接代词(what, whatever, who, whoever, whom, whose, which, whichever 等)和连接副词(when, where, why, how, whenever, wherever, however 等)。
1)that引导的主语从句(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.你能得奖看起来不大可能。
That light travels in straight lines is known to all.众所周知，光沿直线传播。
That you don’t like him is none of my business.你不喜欢他不管我的事。
(2)形式主语it替代主语从句位于句首，that引导真正的主语从句会放到句子的后面。
常用的句式主要有如下几种：1.It+系动词+形容词+that从句。
如：It is necessary that … 有必要 .....It is clear that … 很清楚.....It is likely that … 很可能.....It is important that … 重要的是.....类似的形容词还有：strange; natural; obvious; true; good; wonderful; possible; unlikely; quite; unusual; certain; evident; worth-while; surprising; interesting; astonishing, etc.例如：It was really astonishing that he refused to talk to you.It is essential that he should be here by the weekend.It seems obvious that we can not go on like this.It is necessary that you (should)master the computer.It is important that a student learn English well.It' s clear that they badly need help.It is likely that a hurricane will arrive soon.知识拓展：在“It is necessary / important/surprising/strange/unthinkable/unbelievable/incredible+that 从句”这类主语从句结构中，从句中谓语动词常用(should) +动词原形”，形式，即要用虚拟语气should 可省略。
主语从句超全讲解加练习
1〕从属连词：that，whether等.that 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。
That he will win is certain.他肯定会赢。
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
注意: 由that 引导的主语从句有时为了使句子结构平衡, 防止“头重脚轻”, 常用it 作形式主语, 而把从句放在后面。
例如:1. That he will refuse this piece of advice is impossible.2.That they should like each other is natural.这样就构成了下面一些常用句型:1) It is + n. +从句It is a pity/shame that... 遗憾的是……It is a surprise that…令人惊奇的是…It is a fact that… …是事实It is common knowledge that… …是常识______________(很遗憾)we lost the match._____________(这是事实)he cheated in the exam.2) It is + adj. +从句It’s certain that… 肯定…It is possible that... 很可能……It is unlikely that... 不可能……It is obvious that… 很明显…It is necessary \important \natural\... that…+(should) do________________(很可能)she will come back tomorrow.*_________________(很明显)this measure is effective.3) It +不及物动词+从句It happened that... 碰巧……It occurred to me that…我突然想起…_______________(刚好)I came into the office at that time.*____________________(我突然想起)I forget to sent the letter.4) It + be +过去分词+从句It is said that... 据说……It is known to all that... 众所周知……It is reported that... 据报道……It is believed that..人们相信/认为……It is suggested that + (should〕do... 建议……__________________(据报道)20 people were killed in the accident.*_______________(建议)we should eat more vegetable and do more exercise.2.连接代词who ，what ，which, whatever, whichever, whoever(Who, whom, which, what可以和ever构成合成词，和what一样引导从句，ever起到强调作用。
高中英语高考复习主语从句翻译练习(附参考答案和知识讲解)
高考英语主语从句翻译练习班级_考号姓名总分1.据估计，上海每年春节要接待几百万游客。
(It)2.还不知道是什么原因造成这次森林火灾。
(cause)3.你要一个人完成那项任务似乎很困难。
(seem)4.无论他为他的父母做什么，都会让他们很开心。
(top)5.据报道，很多大学生想毕业后自己创业。
(report)6.我突然想到我忘记通知他们考试的时间了。
(occur》7.这个课程的创新之处在于它很大程度上尊重了小学生的学习(What)8.据说每天喝适量的葡萄酒可以使人保持年轻。
(stay)9.他从没想到两家公司都会给他工作机会，但是他不知道该如何选择，因为它们都是行业内的翘楚。
(occur)10.随着社会竞争日益加剧,青年人掌握至少两门语言是十分必要的。
(It)11.将来过怎样的生活取决于你自己。
(be up to)12.这个游戏的独特之处在于它让孩子学会如何应对现实生活中的问题。
(What)13.建议该实验在低温下操作。
(suggest)14.任何能够采用新方法解决这道技术难题的人,都将受到奖赏。
(Whoever)15.让这所学校自豪的是超过90%的学生都被重点大学录取。
(What)16.人们普遍认为在公共场合大声说话是不文明行为,应该避免。
(It)17.我从未想到那些偏远山区的孩子们生活条件如此艰苦。
(occur)18.随着科技的发展，电脑是否会取代传统的教学方式成为了当下最热的话题之一。
(substitute)19.因为蓝色是天空和海洋的颜色,所以蓝色自然常和冷静,可靠和喜爱平静生活联系在一起。
(natural)20.但凡家境殷实的单身汉，必然想娶妻成家，这是举世公认的道理。
(It)附：参考答案1.It is estimated that Shanghai receives millions of visitors every Spring Festival.2.What caused the forest fire is still unknown.3.It seems very difficult that you are to complete the task alone.4.Whatever he does for his parents makes them feel on top of the world.5.It is reported that many college students want to start their own business after graduation.6.It suddenly occurred to me that I had forgotten to inform them of the time for the exam.7.What is original in this course is that it respects pupils， study habits to a great extent.8.It is said that drinking a proper amount of wine every day can help one to stay young.9.It never occurred to him that the two companies would both give him a job offer, but he didn，t know which to choose, because both of them belong to the top of the industry.10.It is necessary for the young to master at least two languages with the social competition getting increasingly fiercer11.It's up to you what kind of life you will lead in the future12.What makes this game peculiar lies in that it teaches kids how to handle the problems in real life.13.It is suggested that the experiment should be made under a low temperature.14.Whoever can adopt a new approach to solving the technical problem will/shall be awarded.15.What made the school proud was more than 90% of the students had been admitted to key universities.16.It is generally believed/ considered/ thought that talking loudly in public is uncivilized and should be avoided17.It never occurred to me that the living conditions of the children should be so hard in the remote mountainous areas18.With the advancement of technology, whether computers will substitute for traditional teaching means has become one of the hottest topics nowadays.19.Since blue is the colour of the sky and the sea, it is only natural that it should often be associated with calmness, reliability and preference for a peaceful life.20.It is a truth universally acknowledged that a single man in possession of a good fortune must be in want of a wife.附：知识讲解主语从句就是从句作句子主语,一般放在句首，即主句谓语动词之前。
高中英语主语从句教案
高中英语主语从句教案一、教学目标1. 让学生理解主语从句的概念和用法。
2. 培养学生正确运用主语从句进行句子构建的能力。
3. 提高学生英语思维和表达能力。
二、教学内容1. 主语从句的定义和结构。
2. 主语从句的引导词：that, whether, who, what, where, when, why, how等。
3. 主语从句在句子中的位置和作用。
4. 主语从句的时态和语态。
三、教学重点与难点1. 重点：主语从句的定义、结构和引导词。
2. 难点：主语从句的时态和语态的正确运用。
四、教学方法1. 采用实例讲解法，让学生通过具体例句理解主语从句的用法。
2. 采用练习法，让学生在实践中掌握主语从句的构建和运用。
3. 采用小组讨论法，培养学生合作学习和解决问题的能力。
五、教学过程1. 引入：通过一个谜语引发学生对主语从句的思考，激发学习兴趣。
2. 讲解：讲解主语从句的定义、结构和引导词，通过实例演示让学生理解。
3. 练习：设计一些练习题，让学生运用所学知识进行句子构建。
4. 拓展：讲解主语从句的时态和语态，让学生进一步掌握主语从句的用法。
5. 总结：对本节课的主要内容进行总结，强调重点和难点。
6. 作业：布置一些主语从句的练习题，让学生巩固所学知识。
六、教学评价1. 评价方式：课堂练习、小组讨论、课后作业。
2. 评价内容：主语从句的定义、结构、引导词及运用。
3. 评价标准：学生能正确理解主语从句的概念，熟练运用引导词构建句子，时态和语态运用准确。
七、教学反思1. 反思内容：教学方法、教学内容、学生反馈。
2. 反思过程：根据学生在课堂上的表现，及时调整教学方法，针对学生的薄弱环节进行重点讲解。
3. 改进措施：针对学生的掌握情况，调整教学进度和练习难度，提高教学效果。
八、教学拓展1. 拓展内容：主语从句与其他从句的区分，如宾语从句、定语从句等。
2. 拓展目的：帮助学生更好地理解和运用各种从句，提高句子构建能力。
主语从句教案
主语从句教案【教案】教学目标：1. 知识目标：了解主语从句的定义和用法，能正确使用主语从句构建句子。
2. 技能目标：能够根据语境判断主语从句的成立，并能够正确使用主语从句构建句子。
3. 情感目标：培养学生积极参与课堂讨论的意识，激发学生学习英语的兴趣。
教学重难点：1. 重点：主语从句的定义和用法。
2. 难点：从复杂的句子结构中找出主语从句。
教学准备：1. 教师准备课件、教案、录音机等教学工具。
2. 学生准备课本、笔记本等学习用具。
教学过程：Step 1: 导入新课（5分钟）1. 师生问好。
2. 教师通过图片、视频等展示不同句子的主语，并引导学生思考主语的作用和构成。
3. 引导学生总结主语的定义，并与学生一起列出几个例子。
Step 2: 规则讲解（10分钟）1. 教师介绍主语从句的定义和用法。
2. 教师通过示例句子解释主语从句的构建方法，并与学生一起分析句子结构。
3. 教师通过多个例子让学生掌握主语从句的构建要点，例如：主语从句一般由连接词（that, whether, if, who, whom, which, what, where, when, why等）引导，常常位于句首或句尾。
Step 3: 例句操练（10分钟）1. 教师呈现一些含有主语从句的例句，并以音频形式朗读。
2. 学生跟读例句，并找出主语从句的位置和引导词。
3. 学生用自己的话解释主语从句的作用和构建方法。
4. 教师对学生的答案进行点评和指导。
Step 4: 练习活动（15分钟）1. 教师提供一篇短文，并在短文中设置多个空格，要求学生使用主语从句填空。
2. 学生独立完成填空练习，并互相交换答案。
3. 教师核对答案，并对错误的地方进行解释和讲解。
4. 学生根据教师的解释和讲解对自己的答案进行修改。
Step 5: 拓展延伸（15分钟）1. 教师出示一些复杂句子，并要求学生根据语法知识和上课所学的内容分析句子结构，找出主语从句。
2. 学生分组讨论，互相交流分析结果，并提出自己的观点和解释。
主语从句表语从句学案和专项练习
Subject Clause and Predicative ClauseⅠ. 主语从句(Subject Clause)一定义：__________________________________________________.1. He is right .2. What he said is right .二.主语从句引导词1.主语从句的引导词与宾语从句一样。
〔但不用if 〔是否〕，只能用whether(是否)〕1) that 2) whether3) what , which ,who, whom, whose, whatever , whichever.....4) where , when , why, how, wherever, whenever .....5) how many , what color, how far等。
2. 引导主语从句的关联词除起连接句子的作用，绝大多数关联词在主从中要充当一定的句子成分。
3. 主语从句的语序是：关联词+S+V三. 主语从句引导词的用法:1. that 的用法：that 引导句意完整, 意义明确不缺成分的述句；无词义，在主从中不充当句子成分，不能省略。
仿照例子改写句子改成相应的主语从句Model: There is life on another planet (在另外的星球上)〔that 引导的主从〕 It is almost impossible.→That there is life on another planetis almost impossible(主从) s v.1). The scientist will give us a lecture ne*t week. It is true. →2). You don’t like him. It is none of my business.(不关我的事) →3).Her hair was turning gray(灰色). It worried her bit.→4). He told her everything. It is probable.→5). He sings so well. It is no surprise.→2. whether 的用法: whether引导的主从不缺句子成分，句意不完整，表达一种不确定，不明确的概念；whether当"是否"讲，在主从中不充当句子成分。
高中英语语法：四种名词性从句讲解与练习
名词性从句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。
引导词：主语从句就是在复合句中用作主语的从句，引导主语从句的引导词主要有三类：一是that；二是whether；三是那些可以用作疑问词的词语，如what, who, which, when, where, how, why等（一）引导名词性从句的连接词1、连接代词：who, whose, whom, what, which。
有词义，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。
有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if。
that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。
注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。
连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。
根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。
一、主语从句与宾词从句连词、语序、时态相同。
只是不能用if, that 不可省；（一）、主语从句是一个句子，在句子中作主语成分。
（二），主语从句的特点1.与宾语从句使用同样的连接词，只是if 不能用；1）、陈述句用that。
2）、一般疑问句用whether。
3）、特殊疑问句用特殊疑问词what, which, who,when, where, why, how 等词引导。
2.经常隐身（以it为形式主语出现）。
例句：1.It's true that the earth is round.That the earth is round is true.2. 表是否的意思时，不能用if代替whether.It hasn't been decided whether he'll come or not.Whether he'll come or not hasn't been decided.3. 从句语序为主谓宾正常语序。
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第四讲主语从句讲与练一、主语从句的概念与类型主语从句在复合句中作主句的主语.例如:That she was chosen made us very happy.她当选了使我们很高兴.What caused the accident is a complete mystery.什么导致了事故还完全是个谜. Whether she will come or not is still a question.她是否来还是一个问题.Which team will win the match is still unknown.哪个队会赢得这场比赛还不知道. Whoever comes to the party will receive a present.参加聚会的人都将收到一份礼物. When they will start has not been decided yet.他们何时出发还没决定.二、引导主语从句的连接词有：1,从属连词：that，whether；2,连接代词：who, whose, whom, which, what, whoever, whomever, whichever, whatever等；3,连接副词：when，where，how，why及whenever,wherever,however等。
1）从属连词：thatThat she left him made him sad.That he will come is certain.特点：Eg: ______ you don’t like him is none of my business.A. WhatB. WhoC. ThatD.Which注：that从句作主语时，常用it作形式主语，常见的句型有四种：1. It + be + 名词/名词词组＋that从句It is common knowledge that… …是常识It is a surprise that …. 令人惊奇的是…It is a fact that…… 事实是……2. It + be + 形容词＋that从句It is necessary that… 有必要…It is important that …. 重要的是…It is obvious that…… 很明显……3. It + be + 过去分词＋that从句It is believed that… 人们相信…It is known to us/all that …. 众所周知…It has been decided that……已经决定……4. It + 不及物动词＋that从句It appears that… 似乎…It happens that …. 碰巧…It occurred to me that…… 我突然想起改写：1.That we shall be late is certain.--2. That the earth is round is known to all.--3. That you missed the chance is a pity.--____ is reported that 3 college students died in the Yangtze River in order to save two boys.A.ItB.AsC.ThatD.What链接虚拟语气1.在It + be+suggested/advised/ordered/requested/ insisted/required 中, that从句的谓语也应该用“should + 动词原形\”的形式, should可以省略。
2.用于It is important / natural / necessary /strange/ impossible that...句型中, 主语从句应使用虚拟语气, 谓语动词用“should + 动词原形”的形式, should可以省略。
It is advised that the meeting _____(2005江西）A. delayB. be delayedC. delaysD. should delayIt is strange that he _______so.（2008江西）A. thinksB. thinkC. thoughtD. will think2）whether引导的主语从句Whether he likes it is still a question.Whether I will pass the exam is hard to say.Whether we will go to the park depends on the weather.特点:______we will go camping tomorrow depends on the weatherA. IfB. WhetherC. ThatD. Where3）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。
What I want to know is this. 我想知道的就是这事。
Whatever we do is to serve the people.我们无论做什么都是为人民服务。
______ we can’t get seems better than_____ we have.A. What; thatB. What; whatC. That; thatD. That; what______ has helped to saved the girl is worth praising.(2004全国）A. WhoB. The oneC. AnyoneD. Whoever 4）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。
)eg:Where we should leave it is a problem.When they will come hasn’t been made pubic.他们什么时候来还不知道。
Eg:______ he was late for school again puzzled me.A. WhereB. WhenC. WhatD. Why_____and _____the 30th Olympic Games will be held is known to us all.A. What; whereB. When; whereC. that ;whetherD. Why; that思考的问题：1、如何区分what 和that2、如何区分what和whatever，who和whoever3、如何区分whatever和however4如何区分that和whether三．选择题：1. _____ as much as one-fifth of all timber harvested is not used.A. The estimateB. The estimateC. They are estimatedD. It is estimated that2. _____ some mammals came to live in the sea is not known.A. WhichB. SinceC. AlthoughD. How3. _____ we have achieved is attributed to the guidance of our parents.A. WhoeverB. WhateverC. HoweverD. That4. _____ wealthy does not necessarily mean that a man is greedy.A. For the reason that he isB. Just because he isC. The reason of beingD. That he is5. Although _____ happened in this developed country sounds like science fiction, it could occur elsewhere in the world.A. whichB. whatC. howD. it6. _____ she had forgotten to take her notebook.A. That occurred to herB. She occurred thatC. To her that occurredD. It occurred to her that7. I am sure that _____ she said is wrong.A. whichB. allC. thisD. what8. We lost our way in the forest, and _____ made matters worse was that it was getting dark.A. thatB. whichC. itD. what9. _____ some mammals came to live in the sea is not known.A. WhichB. SinceC. AlthoughD. How10. _____ or not is still uncertain.A. He’s comingB. If he is comingC. That comingD. Whether he’s coming11. It’s _____ he’ll be able to come.A. doubt whetherB. doubtfulC. doubt itD. doubtful whether12. _____ he is at work in the heart of the big city or at home in the quiet suburb, Dick’s life is tied to machines.A. WhetherB. TillC. IfD. Unless13. _____ he saw both surprised and frightened him.A. ThatB. WhenC. WhatD. Which14. _____ is a spell of warm sunshine.A. What do we all need.B. What all we needC. What we needD. What we all need15. _____ is a pity that he should feel so upset.A. WhatB. ThatC. HeD. It16. _____ a spoonful of soil can tell us so much about the structure and early history of the moon.A. RemarkableB. Quite remarkablyC. It is remarkable thatD. It is remarkable fact that17. _____ you nominate will be elected.A. WhoB. WhomC. WhomeverD. That’s18. _____ book you borrow must be returned within a week.A. WhatB. WhichC. WhicheverD. That’s19. _____ of us gets home first starts cooking.A. WhoB. WhichC. WhicheverD. Anyone20. _____orders he gives are obeyed.A. WhicheverB. WhichC. WhateverD. What四、主语从句在写作中：假定你是李华，自制一些中国结（Chinese knot）。