主语从句讲解练习及答案
高中英语主语从句用法练习题50题(答案解析)
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高中英语主语从句用法练习题50题(答案解析)1. ____ is still unknown whether we can go back to the past through time - traveling.A. ItB. ThatC. WhatD. Which答案解析:A。
在这个句子中,“whether we can go back to the past through time - traveling”是真正的主语从句,为了避免句子头重脚轻,使用it作形式主语,这是it作形式主语的常见用法。
选项B“that”引导主语从句时无实际意义,但在此处不符合句子结构需求。
选项C“what”在主语从句中要充当成分,这里不需要。
选项D“which”表示“哪一个”,不符合句子语境。
2. ____ makes me happy is that I have passed the difficult English exam.A. ItB. ThatC. WhatD. Which答案解析:C。
这里“____ makes me happy”是主语从句,从句中缺少主语,“what”可以在主语从句中充当主语,表示“……的事物”。
选项A“it”作形式主语时,句子结构应为“it + be + 形容词+ that从句”,不符合此句结构。
选项B“that”引导主语从句时在从句中不充当成分,这里从句缺主语,所以不行。
选项D“which”表示在一定范围内的“哪一个”,不适合此语境。
3. ____ is a fact that the earth moves around the sun.A. ItB. ThatC. WhatD. Which答案解析:A。
“that the earth moves around the sun”是真正的主语从句,这里使用it作形式主语,这是典型的it作形式主语的结构,“it + be + 名词+ that从句”。
主语从句讲解练习及答案
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主语从句讲解练习及答案主语从句一、主语从句的连词分三类(1)从属连词引导的主语从句(that whether if)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。
That 引导主语从句通常用it 作形式主语。
That she survived the accident is a miracle.whether有含义(是否)/在句中不做成分/不可以省。
注意:引导主语从句,不能用if不能在开头,只能用whether。
Whether she is coming or not doesn’t matter too much.(2)用连接代词引导的主语从句在由连接代词who, whose, whom, which(哪一个), 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Whatever we do is to serve the people.注:whatever / whoever的功用whatever = anything that; whoever = anyone who。
要注意和whatever, whoever引导的让步状语从句的区别。
如:Whoever breaks the law should be punished. (主语从句)(=Anyone who breaks the law should be punished. )(定语从句)Whoever breaks the law, he should be punished. (让步状语从句)(=No matter who breaks the law, he should be punished. )(让步状语从句)(3)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。
八年级英语主语从句练习题50题答案解析版
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八年级英语主语从句练习题50题答案解析版1. ______ made her mother angry was that she didn't finish her homework.A. ItB. WhatC. WhichD. That答案解析:B。
在这个句子中,“What made her mother angry”是主语从句,在整个句子中作主语,表示“使她妈妈生气的事情”。
主语从句是在句子中充当主语的从句。
判断主语从句的关键是看这个从句是否在句子中充当主语成分。
选项A“it”在这里不能引导主语从句;选项C“which”引导主语从句时有选择的含义,在此句中不符合语义;选项D“that”引导主语从句时,在从句中不充当任何成分,而此句中需要一个在从句中充当主语的词,所以只能选“what”。
2. ______ we will go for a picnic depends on the weather.A. IfB. WhetherC. ThatD. What答案解析:B。
“Whether we will go for a picnic”是主语从句,作句子的主语,表示“我们是否去野餐这件事”。
主语从句是句子的主语部分。
判断依据是它在句子中起到主语的作用。
选项A“if”不能引导位于句首的主语从句;选项C“that”引导主语从句时,从句语义不完整;选项D“what”在从句中要充当成分,而此句中不需要,所以选择“whether”。
3. ______ is known to all, the earth is round.A. AsB. ItC. WhichD. What答案解析:A。
“As is known to all”是主语从句,在句中作主语,表示“众所周知的事情”。
判断为主语从句是因为它在句子中承担主语的职能。
选项B“it”不能这样引导主语从句;选项C“which”引导非限定性定语从句,不用于这种主语从句;选项D“what”在从句中要充当主语、宾语等成分,这里不需要,所以选“As”。
主语从句超全讲解加练习
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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
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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”。
初一英语主语从句造句练习题40题答案解析版
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初一英语主语从句造句练习题40题答案解析版1. ____ that we should help each other in the class is very important.A. ItB. ThatC. ThisD. He答案:B解析:在这个句子中,“that we should help each other in the class”是主语从句,that在主语从句中不作任何成分,只起连接作用。
整个句子的结构是“主语从句(that we should help each other in the class)+系动词(is)+表语(very important)”。
2. ____ that Tom likes reading books makes his parents happy.A. ItB. WhatC. WhichD. That答案:D解析:“that Tom likes reading books”是主语从句,that起连接作用,无实际意义。
句子结构为“主语从句((that Tom likes reading books)+谓语(makes)+宾语(his parents)+宾补(happy)”。
3. ____ that we need to do more exercise is a fact.A. ItB. ThatC. ThereD. Those答案:B解析:这里“that we need to do more exercise”是主语从句,that用于引导主语从句,在从句中不充当成分。
句子结构是“主语从句((that we need to do more exercise)+系动词(is)+表语(a fact)”。
4. ____ that she is good at dancing is known to all.A. ItB. WhatC. ThatD. Which答案:C解析:“that she is good at dancing”为主体的主语从句,that只起连接作用。
九年级英语主语从句练习题50题含答案解析
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九年级英语主语从句练习题50题含答案解析1._____ he will come or not is still a question.A.IfB.WhetherC.ThatD.What答案解析:B。
“whether...or not”是固定搭配,表示“是否”。
A 选项“if”不能与“or not”连用;C 选项“that”在主语从句中无实际意义,且不符合语境;D 选项“what”在主语从句中要充当成分,不符合题意。
2._____ surprised me most was that he passed the exam.A.WhatB.ThatC.WhichD.It答案解析:A。
“what surprised me most”中“what”在主语从句中充当主语,表示“最让我惊讶的事情”。
B 选项“that”在主语从句中无实际意义,且不符合语境;C 选项“which”在主语从句中有选择的意思,不符合题意;D 选项“it”不是引导词。
3._____ we need is more time.A.ThatB.WhatC.WhichD.When答案解析:B。
“what we need”中“what”在主语从句中充当宾语,表示“我们需要的东西”。
A 选项“that”在主语从句中无实际意义,且不符合语境;C 选项“which”在主语从句中有选择的意思,不符合题意;D 选项“when”在主语从句中表示时间,不符合题意。
4._____ is known to us all, the earth is round.A.AsB.WhatC.ThatD.Which答案解析:A。
“As is known to us all”是固定用法,意思是“众所周知”。
B 选项“what”在主语从句中要充当成分,不符合题意;C 选项“that”在主语从句中无实际意义,且不符合语境;D 选项“which”在主语从句中有选择的意思,不符合题意。
主语从句练习题及答案
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主语从句练习题及答案一、主语从句练习题1. ______ is not known is whether the meeting will be held tomorrow.A. IfB. WhatC. ThatD. Which2. ______ she said surprised me a lot.A. WhatB. WhetherC. ThatD. Which3. ______ is certain is that he will stay in Paris for a year.A. WhatB. WhetherC. ThatD. Which4. ______ studying abroad is expensive, many students still choose to do so.A. WhatB. IfC. ThatD. Which5. ______ made her angry was his rude behavior.A. WhatB. WhetherC. ThatD. Which二、主语从句练习题答案1. B. What2. A. What3. C. That4. A. What5. C. That三、文章练习题主语从句是句子中的一个句子成分,用来作为句子的主语,它常常以连接代词或连接副词的形式出现。
在句子中,主语从句常常起到引导词,引导句子的作用。
以下是几个关于主语从句的练习题。
练习题1:______ is not known is whether the meeting will be held tomorrow.练习题2:______ she said surprised me a lot.练习题3:______ is certain is that he will stay in Paris for a year.练习题4:______ studying abroad is expensive, many students still choose to do so.练习题5:______ made her angry was his rude behavior.答案:1. B. What2. A. What3. C. That4. A. What5. C. That通过以上练习题,我们可以锻炼和巩固对主语从句的理解和应用能力。
高中英语主语从句练习题20题(答案解析)
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高中英语主语从句练习题20题(答案解析)1._____ is known to all that the earth is round.A.ThatB.ItC.AsD.What答案解析:B。
“It is known to all that...”是固定句型,it 作形式主语,真正的主语是that 引导的从句。
A 选项that 不能直接放在句首作形式主语;C 选项as 引导的非限制性定语从句通常放在句首,语义不符;D 选项what 引导主语从句时不能用在这个句型中。
2._____ is important for us to learn English well.A.ThatB.ItC.ThisD.One答案解析:B。
“It is important for sb to do sth”是固定句型,it 作形式主语,真正的主语是动词不定式to learn English well。
A 选项that 无此用法;C 选项this 不能作形式主语;D 选项one 也不能作形式主语。
3._____ seems impossible that he can finish the task in such a short time.A.ThatB.ItC.ThisD.He答案解析:B。
“It seems impossible that...”是固定句型,it 作形式主语,真正的主语是that 引导的从句。
A 选项that 不能作形式主语;C 选项this 不能作形式主语;D 选项he 不是形式主语的正确用法。
4._____ is a pity that you missed the concert.A.ThatB.ItC.ThisD.What答案解析:B。
“It is a pity that...”是固定句型,it 作形式主语,真正的主语是that 引导的从句。
A 选项that 不能作形式主语;C 选项this 不能作形式主语;D 选项what 引导主语从句时不能用在这个句型中。
小升初英语主语从句练习题30题答案解析版
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小升初英语主语从句练习题30题答案解析版1._____ is important for us to learn English well.A.ItB.ThatC.ThisD.What答案解析:A。
在这个句子中,“it”是形式主语,真正的主语是“to learn English well”这个不定式短语。
这种结构是为了避免句子头重脚轻。
“that”一般引导主语从句时在句中不充当成分,这里如果用“that”句子结构不完整;“this”不能作形式主语;“what”在主语从句中要充当成分,而这里不需要。
2._____ he will come to the party makes me happy.A.IfB.WhetherC.ThatD.Which答案解析:C。
这里“that”引导主语从句,在句中不充当任何成分,只起连接作用。
“if”不能引导主语从句位于句首;“whether”引导主语从句时表示“是否”,在这里语义不符;“which”在主语从句中要充当成分,这里不需要。
3._____ we need is more time.A.WhatB.ThatC.WhichD.Who答案解析:A。
“what”在这个主语从句中充当宾语,“what we need”表示“我们所需要的东西”。
“that”在句中不充当成分,这里不适用;“which”表示“哪一个”,语义不符;“who”表示“谁”,不符合句子意思。
4._____ she said at the meeting surprised everyone.A.ThatB.WhatC.WhichD.When答案解析:B。
“what”引导主语从句,并且在从句中充当宾语,“what she said”表示“她所说的话”。
“that”在句中不充当成分,这里不合适;“which”表示“哪一个”,语义不符;“when”表示时间,不符合句子意思。
5._____ is a fact that the earth goes around the sun.A.ItB.ThatC.ThisD.What答案解析:A。
高考语法 名词性从句之主语从句与表语从句 讲解及练习(附答案)
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名词性从句1 主语从句:在复合句中充当主语成分的句⼦子叫主语从句 1.1 主语从句的引导词 1.2 主语从句的形式Conlusion 1:主语从句作主语时,谓语动词一般用单数(第三人称)形式。
Conlusion 2:连词That在句中无实际意义,不能省略。
Conlusion 3:whether引导的主语从句可放在句首,但if不能。
Conlusion 4:主语从句中连词that/whether等不能重复使用。
Conlusion 5:what引导的主语从句,可根据表语决定主句的单复数形式。
Conlusion 6:为了平衡句子结构,主语从句大多可改写为it形式主语形式。
从属连词连接副词连接代词引导词that,whether,if when, why, where, how, whenever, wherever, however what, who, whom, which, whatever,whoever, whomever, whichever形式说明⽰示例that 引导的主语从句置于句⾸首、that 在主语从句中不做任何成分、不可省略他要来看望我们,这使我们很⾼高兴。
形式评语it代替主语从句It + is/was + adj. +从句对于学⽣生来说很明显的是,他们要为未来做好准备。
“It is/was + necessary/important/surprising/strange/unbelievable/obvious…+从句”结构中,从句谓语动词用“should+动词原形”,should可以省略It + is/was + 名词 +从句我们的希望是,我们都能通过考试。
It + is/was + V-ed +从句据宣布,该计划已经顺利通过。
“It is/was + suggested/advised/ordered/insisted/required/demanded…+从句”结构中,从句谓语动词用“should+动词原形”,should可以省略It + is/was + 特殊动词 +从句(happen,occur,seem,appear…)你似乎不同意这个计划。
主语从句详解+试题+答案
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从句的语序永远是陈述句!一、主语从句主语从句通常由连词that和whether、what连接代词或连接副词引导。
1. what引导What’s done is done.What he says is not important. 事已成定局2. that引导That he is still alive is a wonder.That we shall be late is certain.That she became an artist may have been due to her father’s influence.他还活着,真是奇迹。
我们要晚了,这是确定无疑的。
她成为画家可能是受她父亲的影响。
3. whether引导Whether it will do us harm remains to be seen.Whether they would support us was a problem.是否对我们有害还要看一看4. 连接副词引导When we arrive doesn’t matter.How many people we are to invite is still a question.Where I spend my summer is no business of yours.什么时候到没有关系。
我在哪里过暑假不关你事。
二、形式主语有时为了考虑句子平衡,避免句子头重脚轻,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。
It’s a pity that he didn’t come.It is important that he should know about this.It’s vital that we be present.It is essential that a meeting be convened this week. It was a problem whether they would support us.很遗憾他没来。
高中主语从句练习题及讲解答案
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高中主语从句练习题及讲解答案# 高中主语从句练习题及讲解答案## 练习题1. 题目一:尽管他很年轻,但他已经是一位成功的企业家了。
- 例句:_________ he is very young, he has already becomea successful entrepreneur.2. 题目二:无论你什么时候来,我都会在这里等你。
- 例句:_________ you come, I will be here waiting for you.3. 题目三:他相信他能通过这次考试,这让他的父母感到非常高兴。
- 例句:He believes that he can pass the exam, which makes his parents very happy.4. 题目四:我们不知道他是否已经完成了作业。
- 例句:We don't know _________ he has finished his homework or not.5. 题目五:她害怕黑暗,这是众所周知的。
- 例句:She is afraid of the dark, which is _________.## 讲解主语从句是作为动词或介词的宾语的从句,它通常位于句首。
主语从句可以由连接词that, if, whether等引导。
- that引导的主语从句:用来陈述一个事实,通常可以省略。
- if/whether引导的主语从句:用来表达“是否”,通常不能省略。
## 答案1. 答案一: Although/Though _________ he is very young, hehas already become a successful entrepreneur.- 讲解:这里使用了“Although”或“Though”来引导让步状语从句,表示尽管他年轻,但他已经成功。
2. 答案二: Whenever _________ you come, I will be herewaiting for you.- 讲解:“Whenever”引导主语从句,表示无论何时你来。
八年级英语主语从句练习题50题含答案解析
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八年级英语主语从句练习题50题含答案解析1._____ he will come on time is still uncertain.A.ThatB.WhetherC.WhenD.Where答案解析:B。
“Whether he will come on time”是主语从句,在这个句子中,“是否他能准时来还不确定”,这里不能用that,因为that 在主语从句中不表示“是否”的意思;when 和where 也不符合语境,这里强调的是“是否”。
2._____ she said made us very happy.A.ThatB.WhatC.WhichD.Who答案解析:A。
“That she said”是主语从句,that 在主语从句中只起连接作用,没有实际意义,“她所说的话让我们很高兴”,what、which 和who 在这里不符合语境。
3._____ they will win the game is hard to say.A.ThatB.WhetherC.When答案解析:B。
“Whether they will win the game”是主语从句,“他们是否会赢得比赛很难说”,that 在这里不合适,因为不是陈述一个确定的事实;when 和where 也不符合语境。
4._____ he is coming back tomorrow is good news.A.ThatB.WhetherC.WhenD.Where答案解析:A。
“That he is coming back tomorrow”是主语从句,that 在主语从句中只起连接作用,没有实际意义,“他明天回来是个好消息”,whether、when 和where 不符合语境。
5._____ she can finish the work on time is important.A.ThatB.WhetherC.WhenD.Where答案解析:B。
高中英语主语从句用法练习题40题(带答案)
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高中英语主语从句用法练习题40题(带答案)1._____ he will come to the party is still uncertain.A.ThatB.WhetherC.WhatD.When答案解析:B。
“他是否会来参加派对还不确定”。
A 选项that 在主语从句中无实际意义,只起连接作用,但此处表达不确定,that 不合适;C 选项what 表示“什么”,不符合题意;D 选项when 表示“什么时候”,也不符合不确定的语境。
而whether 表示“是否”,符合题意。
2._____ she can finish the task on time is a question.A.ThatB.WhetherC.WhatD.Who答案解析:B。
“她是否能按时完成任务是个问题”。
A 选项that 在主语从句中无实际意义,只起连接作用,但此处需要表达不确定,that 不合适;C 选项what 表示“什么”,不符合题意;D 选项who 表示“谁”,也不符合题意。
whether 表示“是否”,符合语境。
3._____ is known to all is that the earth is round.A.ThatB.WhetherC.WhatD.As答案解析:A。
“众所周知,地球是圆的”。
what 引导主语从句时在从句中要充当成分,此处不适合;whether 表示“是否”,不符合题意;as 引导非限制性定语从句,也不符合;that 引导主语从句,在从句中无实际意义,只起连接作用,符合题意。
4._____ we need is more time.A.ThatB.WhetherC.WhatD.Who答案解析:C。
“我们需要的是更多时间”。
that 在主语从句中无实际意义,只起连接作用,此处不合适;whether 表示“是否”,不符合题意;who 表示“谁”,不符合语境。
what 引导主语从句且在从句中充当need 的宾语,符合题意。
主语从句详解及练习_附答案
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高二年级语法要点剖析(李翌洋)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:(1)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。
注意: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。
高中英语主语从句用法练习题40题含答案解析
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高中英语主语从句用法练习题40题含答案解析1._____ he will come to the party is still uncertain.A.ThatB.WhetherC.WhatD.Who答案解析:B。
“Whether he will come to the party”是主语从句,在这个句子中“whether”表示“是否”,整个主语从句的意思是“他是否会来参加聚会”。
“that”引导主语从句时在从句中不充当任何成分,只起连接作用,且没有实际意义,此句中意思不符。
“what”在主语从句中要充当成分,此句不缺成分。
“who”在主语从句中表示“谁”,此句不是问谁会来参加聚会。
2._____ she won the first prize surprised all of us.A.ThatB.WhetherC.WhatD.When答案解析:A。
“That she won the first prize”是主语从句,“that”在从句中不充当任何成分,只起连接作用,此句中“她赢得一等奖这件事让我们所有人都很惊讶”,用“that”符合语法规则。
“whether”表示“是否”,不符合句意。
“what”在主语从句中要充当成分,此句不缺成分。
“when”表示“什么时候”,不符合句意。
3._____ is important is that we should study hard.A.ThatB.WhetherC.WhatD.Who答案解析:C。
“What is important”是主语从句,“what”在从句中充当主语,表示“重要的事情”。
“that”在主语从句中不充当成分,此句缺主语。
“whether”表示“是否”,不符合句意。
“who”表示“谁”,不符合句意。
4._____ he said at the meeting was very important.A.ThatB.WhetherC.WhatD.Who答案解析:C。
初一英语主语从句造句练习题40题含答案解析
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初一英语主语从句造句练习题40题含答案解析1.It is important that we study hard.答案解析:在这个句子中,“it”是形式主语,真正的主语是“that we study hard”。
“it is important that...”是一个固定句型,表示“……是重要的”。
在这个句型中,“it”作形式主语,避免了句子头重脚轻。
2.It is necessary that we listen to the teacher carefully.答案解析:“it”是形式主语,“that we listen to the teacher carefully”是真正的主语。
“it is necessary that...”表示“……是必要的”。
3.It is good that we help each other.答案解析:“it”为形式主语,“that we help each other”是真正的主语。
“it is good that...”表示“……是好的”。
4.It is important that we keep our classroom clean.答案解析:“it”作形式主语,“that we keep our classroom clean”是真正的主语。
“it is important that...”意为“……是重要的”。
5.It is necessary that we do our homework on time.答案解析:“it”是形式主语,“that we do our homework on time”是真正主语。
“it is necessary that...”表示“……是必要的”。
6.It is good that we read books every day.答案解析:“it”为形式主语,“that we read books every day”是真正主语。
高中英语主语从句练习题20题答案解析版
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高中英语主语从句练习题20题答案解析版1._____ he will come or not is still uncertain.A.ThatB.WhetherC.WhoD.What答案解析:B。
“Whether...or not”是固定搭配,在主语从句中表示“是否”。
A 选项that 在主语从句中无实际意义,只起连接作用,不符合题意;C 选项who 表示“谁”,题干不是在问“谁会来”;D 选项what 表示“什么”,与题干意思不符。
2._____ wins the game will get a prize.A.WhoeverB.WhoC.WhomeverD.Whom答案解析:B。
本句意思是谁赢得比赛将会得到奖品。
A 选项whoever 表示“无论谁”,语气比who 更强;C 选项whomever 是宾格形式,在句中不能作主语;D 选项whom 也是宾格形式。
所以选B。
3._____ she said made me angry.A.ThatB.WhatC.WhichD.When答案解析:B。
本句意思是她所说的话让我生气。
A 选项that 在主语从句中无实际意义,只起连接作用,不符合题意;C 选项which 表示“哪一个”,不符合语境;D 选项when 表示“什么时候”,与题干意思不符。
所以选B。
4._____ is important is that we should study hard.A.ThatB.WhatC.WhichD.When答案解析:B。
本句意思是重要的是我们应该努力学习。
A 选项that 在主语从句中无实际意义,只起连接作用,不符合题意;C 选项which 表示“哪一个”,不符合语境;D 选项when 表示“什么时候”,与题干意思不符。
所以选B。
5.It is not clear _____ he will come.A.thatB.whetherC.whoD.what答案解析:B。
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主语从句一、主语从句的连词分三类(1)从属连词引导的主语从句(that whether if)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。
That 引导主语从句通常用it 作形式主语。
That she survived the accident is a miracle.whether有含义(是否)/在句中不做成分/不可以省。
注意:引导主语从句,不能用if不能在开头,只能用whether。
Whether she is coming or not doesn’t matter too much.(2)用连接代词引导的主语从句在由连接代词who, whose, whom, which(哪一个), 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Whatever we do is to serve the people.注:whatever / whoever的功用whatever = anything that; whoever = anyone who。
要注意和whatever, whoever引导的让步状语从句的区别。
如:Whoever breaks the law should be punished. (主语从句)(=Anyone who breaks the law should be punished. )(定语从句)Whoever breaks the law, he should be punished. (让步状语从句)(=No matter who breaks the law, he should be punished. )(让步状语从句)(3)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。
) 例如:Where we should live is a problem.When they will come hasn’t been made public.三、it 作形式主语的主语从句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。
这分四种情况:(1)对于以连词that引导的主语从句,通常用形式主语it替代主语从句:<a> It is +名词+从句It is a fact that…事实是……;It is good news that ………是好消息;It is a question that ………是个问题;It is common knowledge that ………是常识It is common knowledge that the whale is not a fish.It is no surprise that Bob should have won the game.<b> It is +形容词+从句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……It seems obvious that we can not go on like this.It is necessary that you (should)master the computer.需要注意的是这类主语从句中,谓语动词很多为“(should)+动词原形”,即要用虚拟语气。
<c> It is +过去分词+从句It is said that …据说……;It is reported that …据报道……;It has been proved that …已证明……;It must be proved that…必须指出……例如:It is used to be thought that a new star must be due to a collision between two stars.It has not been made clear when the new road is to be opened to traffic.<d> It seems不及物动词(happened / appears / doesn’t matter / makes no difference / occurred …)that …主语从句不可提前It makes no difference whether he will attend the meeting or not.It does not matter if I missed my train.It happened that I saw him yesterday.(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: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,通常直接将主语从句放在句首。
如: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。
有时也可将助用形式主语。
如:It is clear enough what he meant. 他是什么意思很清楚。
(4)如果句子是疑问句,则必须用带形式主语it的结构:Is it true that he is the girl’s father? 他是那女孩的父亲,是真的吗?How is it that you are late again? 你怎么又迟到了?四、连词that的省略问题引导主语从句的连词that 有时可省,有时不能省,其原则是:若that引导的主语从句直接位于句首,则that不能省略;若that引导的主语从句位于句末,而在句首使用了形式主语it,则that可以省略:That you didn’t go to the talk was a pity. 很遗憾你没去听报告。
(that不可省)It was a pity (that) you didn’t go to the talk. 很遗憾你没去听报告。
(that可省)主语从句练习题1.________ makes mistakes must correct them.A. WhatB. ThatC. WhoeverD. Whatever2. It worried her a bit ____ her hair was turning grey.A. whileB. thatC. ifD. for3.When and why he came here ________ .A. is not knownB. are not knownC. has not knownD. have not known5. ________ 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 expected6.________ we go swimming every day ________ us a lot of good.A. If...doB. That...doC. If...doesD. That...does7.It ________ Bob drives badly.A. thinks thatB. is thought whatC. thought thatD. is thought that8.It's uncertain ________ the experiment is worth doing.A. ifB. thatC. whetherD. how9.________ the boy didn't take medicine made his mother angry.A. ThatB. WhatC. HowD. Which10.____ we can't get seems better than ____ we have.A. What, whatB. What, thatC. That, thatD. That, what11.____ you don't like him is none of my business.A. WhatB. WhoC. ThatD. Whether12..____ we'll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where13._________is going to do the job will be decided by the Party committee.A. ThatB. WhyC. HowD. Who14._______we'll finish translating the book depends on the time.A. WhenB. WhyC. WhatD. That15.______he won't go there is clear to all of us.A. HowB. WhatC. WhyD. This16.______the house will be built will be discussed at tomorrow's meeting.A. IfB. WhereC. ThatD. What17. ._______you come or not is up to you.A. WhatB. IfC. WhyD. Whether18.._______makes mistakes must correct them.A. WhoB. AnyoneC. WhoeverD. Anybody19.._______team will win the match is a matter of public concern.A. WhichB. ThatC. IfD. How20..________leaves the room last ought to turn off the lights.A. AnyoneB. The personC. WhoeverD. Who答案:1~5 CBACD 6~10DDCAA 11~15 CBDAC 16~20 BDCAC。