主语从句详解及练习-附答案
主语从句强调句讲解练习
主语从句1．定义：用作主语的从句叫做主语从句。
2．引导主语从句的关联词有三类：(1)从属连词that、whether。
如：如：That they were in truth sisters was clear from the facial resemblance between them.很明显，她们确是亲姐妹，她们的脸型很相似。
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
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。
由whether及其他连词引导的主语从句放在句首，句后都可。
If只能放在句中。
(2) （特殊疑问词）连接代词who, whom, whose, what, which, whoever, whatever, whichever如：___which_______watch was lost is unknown._____what_____she did is not yet known. 她干了什么尚不清楚。
__which________side will win is not clear.Whoever comes is welcome. 不论谁来都欢迎。
(3) （特殊疑问词）连接副词where, when, how, why，wherever，whenever，however。
___________ he did it remains a mystery.When they will start is not known yet.How this happened is not clear to anyone. 这事怎样发生的，谁也不清楚Wherever you are is my home ---- my only home.你所在的任何地方就是我的家----我唯一的家。
高一英语主语从句试题答案及解析
高一英语主语从句试题答案及解析1. is known to us all is that the 2012 Olympic Games will take place in London.A．It B．What C．As D．Which【答案】B【解析】通过分析句子结构，可知这个句子中包含一个主语从句和一个表语从句。
引导词在主语从句中作主语，且表示什么的含义，故用What。
【考点】主语从句的考查点评：在句子中起主语作用的从句叫做主语从句。
解答这类题，首先要确定从句是什么从句，然后依据相应的语法规则答题。
主语从句中引导词的确定，要看它在主语从句中作什么成分，有没有什么实际意义。
2.we’ll have our sports meet this week the weather.A．If; depend on B．Whether; depend onC．If; depends on D．Whether; depends on【答案】D【解析】考察主语从句。
本句指的whether引导是主语从句whether we’ll have our sports meet this week，if不能引导主语从句。
当单个的主语从句做主语的时候，谓语动词使用单数形式。
句意：这个星期我们是否要举行运动会取决于天气。
故D正确。
【考点】考察主语从句点评：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。
解答这类题目，关键在于分析清楚句子结构。
通过判断引导词在从句中所作的成分及意义，来选择正确的引导词。
连接主语从句的从属连词主要有that, if, whether，和疑问词（what how where when ...)。
that引导表示陈述句的主语从句，if和whether，whether...or not引导表示“是否”，引导一般疑问句。
连接代词主要有who,whom,whose,what,whoever,whomever,whosever,whatever,whichever等。
主语从句讲解及练习
主语从句讲解及练习什么是主语从句？主语从句是由一个从句充当主语的句子结构，它由连接词引导，用来说明主语的内容或者起到引入主题的作用。
主语从句的引导词一般情况下，主语从句由以下连接词引导：- that- whether/if- who/whom- which- what- whatever- whoever- whichever主语从句的用法主语从句在句子中承担主语的角色，可以帮助我们表达某个动作、状态、事件或者事实的主题。
下面是一些常见的用法示例：1. 表达事实或真理：例如：That he is innocent is beyond doubt.（他的无辜是毫无疑问的。
）2. 表达感觉或观点：例如：What he said is very interesting.（他说的话很有趣。
）3. 引导宾语从句：例如：I believe that he will succeed.（我相信他会成功。
）主语从句的位置一般情况下，主语从句位于句首或者句中，具体位置取决于句子的结构和语境。
主语从句的练题请根据下面的句子，填写合适的主语从句：1. __________ you did yesterday surprised everyone.（你昨天做的事让大家都吃惊。
）2. __________ will happen remains unknown.（将会发生什么还不确定。
）3. __________ is important to study hard.（努力研究是很重要的。
）5. __________ we need is more time.（我们所需要的是更多的时间。
）参考答案：1. What2. What3. It4. Whether/if5. What以上是对主语从句的讲解及练习，希望对你的学习有所帮助。
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。
主语从句超全讲解加练习
误:ＩfMaryrｅａllyｈｅaｒdhimis reallyｄoubｔｆul.
正: Wｈｅｔｈer Marｙrｅaｌlyheａrdhｉｍｉsｒｅａlly dｏubtful.
Cｏmpｌeｔetheｓｅntｅnｃｅs usｉng whａt, wheｔhｅr,ｗｈere,wheｎ, whｏ,ｗｈｙ, hｏwｏr tｈａt.
Wｈｅnｔhey wｉlllｅａvｅiｓ ｎoｔｄecided.
Howwewillpaint thehousｅhasnｏｔbeｅｎdecｉdeｄ.
注意:
1)主语从句在句首时，必须由连接词引导,不能省略这些连接词
误:Ｔｈey should lｉｋe eaｃh other isｎatｕrａl.
正：Ｔhａt thｅyshｏuld like each othｅrｉsnａtuｒal
(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。它们在句子中担任主干成分，并用陈述句形式)
What mａnｙ ｓcｉentiｓｔsｂｅlieve istｈaｔtｈe eartｈiｓrｏunｄ…
Whoｗｉｌl taｋｅpaｒｔin theｍeeting haｓｎoｔbｅen deｃidｅｄ.
Ｉt iｓobｖiｏus thａｔ…很明显…
Iｔ ｉs necｅssary＼ｉｍｐｏrtaｎｔ\natuｒaｌ\..．tｈat…+(sｈｏulｄ)do
_＿__＿_＿_＿__＿＿__＿（很可能）shｅwillcｏme bacｋtomorrow.
*＿__＿＿_＿__＿_____＿＿(很明显)ｔhiｓmeａsurｅiｓeffectiｖｅ.
高中英语主语从句练习题20题含答案解析
高中英语主语从句练习题20题含答案解析1._____ he will come or not is still a question.A.ThatB.WhetherC.WhoD.What答案解析：B。
“Whether...or not”是固定搭配，表示“是否”。
A 选项that 在主语从句中不表示“是否”的意思；C 选项who 表示“谁”，不符合语境；D 选项what 表示“什么”，也不符合题意。
2._____ surprised us most was his attitude.A.ThatB.WhetherC.WhoD.What答案解析：D。
what 在主语从句中充当主语，表示“什么”。
A 选项that 在主语从句中无实际意义，只起连接作用；B 选项whether 表示“是否”；C 选项who 表示“谁”，在这里都不符合语境。
3._____ is known to us all is that the earth is round.A.ThatB.WhetherC.WhoD.What答案解析：A。
“That is known to us all”是固定句式，that 在主语从句中无实际意义，只起连接作用。
B 选项whether 表示“是否”；C 选项who 表示“谁”；D 选项what 表示“什么”，在这里都不合适。
4._____ he has done is very important.A.ThatB.WhetherC.WhoD.What答案解析：D。
what 在主语从句中充当宾语，表示“他所做的事情”。
A 选项that 在主语从句中无实际意义，只起连接作用；B 选项whether 表示“是否”；C 选项who 表示“谁”，在这里都不符合语境。
5._____ will win the game is not clear.A.ThatB.WhetherC.WhoD.What答案解析：C。
根据语境，“谁会赢得比赛还不清楚”，who 在主语从句中充当主语，表示“谁”。
高三英语主语从句试题答案及解析
高三英语主语从句试题答案及解析1. Now _______ you have to do is to admit your mistakes and immediately correct them.A．that B．whether C．what D．how【答案】C【解析】考查名词性从句。
句意：现在你不得不做的就是承认你的错误，并立即更正。
What引导主语从句，并在从句中作do的宾语。
What可引导主语从句、宾语从句、表语从句、同位语从句，并在从句中做主语或宾语，但不引导定语从句。
故选C。
【考点】考查名词性从句2. ________makes the book so extraordinary is the creative imagination of the writer. (2013·北京，31)A．That B．WhatC．Who D．Which【解析】 B解析考查名词性从句。
句意为：这本书的非凡之处在于作者富有创造性的想像力。
________ makes the book so extraordinary为主语从句，从句缺少主语，要用what引导，故选B项。
3.________ struck me most in the movie was the father’s deep love for his son.(2013·重庆，28) A．That B．It C．What D．Which【解析】C解析考查名词性从句连接词辨析。
句意为：电影中给我留下深刻印象的是父亲对儿子深深的爱。
“________ struck me most in the movie”在句中作主语，且该主语从句中谓语动词struck缺少主语，故选择what (＝the thing that)。
that引导主语从句不担任成分；it不是连词；which“(无论)哪一个”，表示在一个限定范围内进行选择，均不符合题意。
高三英语主语从句试题答案及解析
高三英语主语从句试题答案及解析1. A heated debate was set off by his proposal at the meeting yesterday over _______it is practical in our area.A．what B．whenC．whether D．that【答案】C【解析】考查名词性从句。
本题考查同位语从句，从句为一般疑问句，故用关系词whether。
句意：在昨天会议上，他提出的建议在我们的地区是否实用引发一场热烈的辩论。
故C正确。
【考点】考查名词性从句2. (2014·长沙名校模考)________he referred to in his article was often discussed by many people in the past.A．That B．WhatC．Whether D．Where【答案】B【解析】考查名词性从句。
此句中referred to后缺少宾语，因此应用what引导该主语从句。
答案：B3. It remains unknown ________ the peace talk between the two countries is going to lead. A．where B．whenC．how D．why【答案】A【解析】A 考察名词性从句。
本句中的it是形式主语，真正的主语是空格以及后面的句子。
从句主语谓语完整，由从句中的lead导致，通向，为不及物动词，后面缺少地点状语，使用where 引导名词性从句。
故A正确。
4. ________ we go there by train or by ship makes no difference. The time and the fees are the same.A．Which B．HowC．Whether D．Why【答案】C【解析】C 考察连词，whether..or…不管…还是…；在本句中做主语从句的引导词。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
语法要点剖析一、名词性从句主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。
因此，这四种从句通称为名词性从句。
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, why1. 主语从句作句子主语的从句叫主语从句。
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；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。
例如：What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。
It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。
Where the English evening will be held has not yet been announced.英语晚会将在哪里举行，还没有宣布。
有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。
主语从句后的谓语动词一般用单数形式。
常用句型如下：（1）It + be + 名词+ that从句（2）It + be + 形容词+ that从句（3）It + be + 动词的过去分词+ that从句（4）It + 不及物动词+ that 从句另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：It is necessary (important, natural, strange, etc.) that …It is a pity (a shame, no wonder, etc.) that…It is suggested (requested, proposed, desired, etc.) that…2. 宾语从句名词句用作宾语的从句叫宾语从句。
引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。
1. 由连接词that引导的宾语从句由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如从句是并列句时,第二个分句前的that不可省。
例如：He has told me that he will go to Shanghai tomorrow.他已经告诉我他明天要去上海。
We must never think (that) we are good in everything while others are good in nothing.我们决不能认为自己什么都好，别人什么都不好。
注意：在demand、order、suggest、decide、insist, desire, demand, request, command等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。
例如：I insist that she (should) do her work alone. 我坚持要她自己工作。
The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。
2. 用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。
例如：I want to know what he has told you. 我想知道他告诉了你什么。
She always thinks of how she can work well. 她总是在想怎样能把工作做好。
She will give whoever needs help a warm support. 凡需要帮助的人，她都会给予热情的支持。
3. 用whether或if引导的宾语从句，其主语和谓语的顺序也不能颠倒，仍保持陈述句语序。
此外，whether与if 在作“是否”的意思讲时在下列情况下一般只能用whether，不用if：a. 引导主语从句并在句首时；b. 引导表语从句时；c . 引导从句作介词宾语时；d. 从句后有“or not”时；e. 后接动词不定式时。
例如：Whether there is life on the moon is an interesting question.月球上有没有生命是个有趣的问题。
Everything depends on whether we have enough money. 一切要看我们是否有足够的钱。
4. 注意宾语从句中的时态呼应，当主句动词是现在时，从句根据自身的句子情况，而使用不同时态。
例如：he studies English every day. （从句用一般现在时）he studied English last term. （从句用一般过去时）I know (that) he will study English next year. （从句用一般将来时）he has studied English since 1998. （从句用现在完成时）当主句动词是过去时态（could, would除外），从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用现在时态。
例如：The teacher told us that Tom had left us for America．5. think, believe, imagine, suppose等等动词引起的否定性宾语从句中，要把上述主句中的动词变为否定式。
即将从句中的否定形式移到主句中。
例如：We don’t think you are here. 我们认为你不在这。
I don’t believe he will do so. 我相信他不会这样做。
3. 表语从句在句中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致一样，表语从句位于连系动词后，有时用as if引导。
其基本结构为：主语+ 系动词+ that从句。
例如：The fact is that we have lost the game. 事实是我们已经输了这场比赛。
That is why he didn’t come to the meeting. 那就是他为什么不到会的原因。
It looks as if it is going to rain. 看上去天要下雨了。
需要注意的，当主语是reason时，表语从句要用that引导而不是because。
例如：The reason why he was late was that he missed the train by one minute this morning 选择：1. “Is Mary from New York City” “I don't know _______.”A. from what city does she come fromB. from what city she comeC. what city does she come fromD. what city she comes from2. ________ makes mistakes must correct them.A. WhatB. ThatC. WhoeverD. Whatever3. The reason why I didn't go to Shanghai was ________ a new job.A. because I gotB. because of gettingC. I gotD. that I got4. It worried her a bit ____ her hair was turning grey.A. whileB. thatC. ifD. for5. Henry killed the dog. I'll ask him why ________.A. did he do thatB. he did thatC. he didD. he has done so6. Have you seen Henry lately My boss wants to know ________.A. how he is getting alongB. how is he getting alongC. what he is getting alongD. what is he getting along7. It is generally considered unwise to give a child ____ he or she wants.A. howeverB. whateverC. whicheverD. whenever8. He asked me ________ with me.A. what is the troubleB. what wrong wasC. what was the matterD. what trouble it is9. I am sure ________ he said is true.A. thatB. about thatC. of thatD. that what10. I wonder how much ________.A. does the watch costB. did the watch costC. the watch costedD. the watch costs11. Mary is ________ someone might recognize her.A. afraid ofB. afraid aboutC. afraid thatD. afraid for12. I don't doubt ________ he'll come.A. thatB. ifC. whatD. whether13. —“Why did you go to the wrong class, Mr. Wang”—“Well, I forget _______ I was supposed to go to.”A. which the roomB. which roomC. what was the roomD. what room was it14. ______ surprised me most was ______ such a little boy of seven could play the violin so well.A. That…whatB. What…thatC. That…whichD. What…which15. ________ we go swimming every day ________ us a lot of good.A. If…doB. That…d oC. If…doesD. That…does16. One of the men held the view ________ the book said was right.A. what thatB. that whatC. that whichD. which that17. I have no idea ________ or not he has finished the work.A. ifB. thatC. whetherD. which18. —“Do you know ________”—“His father is a doctor.”A. what is his fatherB. who is his fatherC. what his father isD. who his father is19. They discussed ________ they could settle the problem without others' help.A. ifB. thatC. whatD. whether20. She asked ________.A. what I was doing when she rang me upB. what was I doing when she rang me upC. when she rang me up what I was doingD. when did she ring me up what I was doing21. It's uncertain ________ the experiment is worth doing.A. ifB. thatC. whetherD. how22. They would have fixed the telephone yesterday _________ it was a holiday.A. exceptB. except forC. except thatD. but for23. ________ the boy didn't take medicine made his mother angry.A. ThatB. WhatC. HowD. Which24. ____ we can't get seems better than ____ we have.A. What, whatB. What, thatC. That, thatD. That, what25. ____ you don't like him is none of my business.A. WhatB. WhoC. ThatD. Whether26. ____ we'll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where27. ________he really means is ________he disagrees with us.A. What … thatB. That … whatC. Why … thatD. If … what28. _________is going to do the job will be decided by the Party committee.A. ThatB. WhyC. HowD. Who29. _______ we'll finish translating the book depends on the time.A. WhenB. WhyC. WhatD. That30. _______ the house will be built will be discussed at tomorrow's meeting.A. IfB. WhereC. ThatD. What31. _______ he won't go there is clear to all of us.A. HowB. WhatC. WhyD. This32. _______ you come or not is up to you.A. WhatB. IfC. WhyD. Whether33. _______ makes mistakes must correct them.A. WhoB. AnyoneC. WhoeverD. Anybody34. _______ team will win the match is a matter of public concern.A. WhichB. ThatC. IfD. How35. The problem is ________will go to the meeting.A. whyB. whenC. whatD. who36. that is _______ he likes the place so much.A. thatB. whatC. whyD. how37. that is ______ Lu Xun once lived.A. whatB. whereC. thatD. why38. What I'm considering now _________ the money we need.A. isB. areC. wereD. was39. Can you tell me __________A. who is that gentlemanB. that gentleman is whoC. who that gentleman isD. whom is that gentleman40. We should think carefully about ________ Mr. Needham said at the meeting.A. thatB. whatC. whichD. X41. Can you point out ________ two radios are the bestA. whichB. whatC. thatD. whether42. ________ you have seen things like these before doesn't matter.A. IfB. WhetherC. WhatD. When43. I asked her in English ________ she was, and she told me ________ she was an actress.A. who…thatB. who…XC. what…XD. how…that44. Do you know ________A. what is this used forB. what this is used forC. which this is usedD. that this is used for45. ________ surprised me most was ________.A. That…t hat she spoke Japanese so wellB. What…how could she speak Japanese so wellC. What…that she spoke Japanese so wellD. That…why she could speak Japanese so well46. ________ Tom liked to eat was different from ________.A. That…that you had expectedB. What …that you had expectedC. That…what you had expectedD. What…what you had expected DCDBBABCDDCABBDBCCDACCAACBADABCDCADCBACBABCBCD。