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主语从句专项练习(含答案)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.W hen and why he came here yet.A. is not knownB. are not knownC. has not knownD. have not known4.is no reason for dismissing her.A.Because she was a few minutes lateB.Owing to a few minutes lateC.The fact that she was a few minutes lateD.Being a few minutes late5.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.I t 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..Is true that the famous scientist will give us a lecture next week.A. thatB. itC. isD. he19.. 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. Who21.he really means is he disagrees with us.A. What, whatB. What, thatC. That, thatD. That, what22.It has not been decided they will leave for Beijing.A.whenB. thatC. whatD. why23.he will go to work in a mountain village surprises all of us.A.WhatB. ThatC. WhetherD. If24.you don’t like him is none of my business.A.WhatB. ThatC. WhoD. How25.all the inventions have in common is they have succeeded.A.What; whatB. That; thatC. what; thatD. That ; what26.appeared to me that he enjoyed the food very much.A.WhatB. ItC. All thatD. That27.It is widely that smoking can cause cancer.A.believedB. thinkC. sayD. hoped28.caused the accident is still a complete mystery.A.WhatB. ThatC. HowD. Where29.he does has nothing to do with me.A.whateverB. No matter whatC. ThatD. If30.It was he said disappointed me.A.what ;thatB.that; thatC.what;whatD.that;what用正确的代词或介词填空he will come to attend the meeting won’t make any difference.I couldn’t understand was why he didn’t attend the meeting.we will hold the meeting hasn’t been decided yet.leaves the room last ought to turn off the light.suddenly occurred to me that I had left my keys at home.[参考答案] 1-10 CBACD DDCAA 11-20 CBDAC BDBAC 21-30 BABBCBAA。
高中英语主语从句用法练习题50题(答案解析)1._____ is important for us to protect the environment.A.ThatB.ThisC.ItD.One答案解析：C。
本题考查it 作形式主语的用法。
it 在句中作形式主语，真正的主语是to protect the environment。
A、B、D 选项均不能作形式主语。
2._____ is known to all that the earth is round.A.ThatB.ThisC.ItD.One答案解析：C。
本题考查it 作形式主语的用法。
it 在句中作形式主语，真正的主语是that the earth is round。
A、B、D 选项均不能作形式主语。
3._____ is a pity that he can't come.A.ThatB.ThisC.ItD.One答案解析：C。
本题考查it 作形式主语的用法。
it 在句中作形式主语，真正的主语是that he can't come。
A、B、D 选项均不能作形式主语。
4._____ is necessary to learn English well.A.ThatB.ThisC.ItD.One答案解析：C。
本题考查it 作形式主语的用法。
it 在句中作形式主语，真正的主语是to learn English well。
A、B、D 选项均不能作形式主语。
5._____ is said that he has gone abroad.A.ThatB.ThisC.ItD.One答案解析：C。
本题考查it 作形式主语的用法。
it 在句中作形式主语，真正的主语是that he has gone abroad。
A、B、D 选项均不能作形式主语。
6._____ is reported that a new bridge will be built.A.ThatB.ThisC.ItD.One答案解析：C。
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”。
主语从句练习50题1. ______ makes me happy is reading books.A. WhatB. ThatC. WhetherD. How答案：A。
本题考查主语从句的引导词。
“What”在从句中充当主语，表示“什么”；“That”在主语从句中不充当成分，且没有实际意义，放在此处句子意思不完整；“Whether”表示“是否”，不符合句子意思；“How”表示“如何”，也不符合句子意思。
所以选择A 选项。
2. ______ he will come or not is still unknown.A. WhatB. ThatC. WhetherD. How答案：C。
“Whether...or not”是固定搭配，表示“是否”；“What”“That”“How”都不能与“or not”这样搭配，所以选择C 选项。
3. It is not clear ______ he did it.A. whatB. thatC. whetherD. how答案：C。
句子意思是“不清楚他是否做了这件事”，“Whether”表示“是否”，符合句子语境；“What”在从句中充当成分，此处不缺成分；“That”在主语从句中不充当成分，且没有实际意义，放在此处句子不通顺；“How”表示“如何”，不符合句子意思。
因此选择C 选项。
4. ______ is important for us to learn English well.A. WhatB. ThatC. WhetherD. How答案：B。
“That”引导的主语从句，“That”在从句中不充当成分，且没有实际意义，此处只是单纯陈述“学好英语对我们很重要”这个事实；“What”“Whether”“How”在句子中意思不符合，所以选择B 选项。
5. ______ we need is more time.A. WhatB. ThatC. WhetherD. How答案：A。
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题含答案解析1. It is important that we protect the environment.A. thatB. whatC. whichD. when答案解析：A。
本题考查主语从句中it 作形式主语的用法。
“It is important that...”是固定句型，其中that 引导的主语从句后置，it 作形式主语。
选项B“what”引导名词性从句时在从句中要充当成分；选项C“which”通常引导定语从句；选项D“when”引导时间状语从句。
2. It is known to all that the earth is round.A. thatB. whatC. whichD. who答案解析：A。
“It is known to all that...”是固定句型，that 引导主语从句后置，it 作形式主语。
选项B“what”在从句中需充当成分；选项C“which”通常引导定语从句；选项D“who”通常指人，在本题中不适用。
3. It is a pity that he missed the concert.A. thatB. whatD. when答案解析：A。
“It is a pity that...”是固定句型，that 引导主语从句后置，it 作形式主语。
选项B“what”在从句中需充当成分；选项C“which”通常引导定语从句；选项D“when”引导时间状语从句。
4. It seems that he is very busy.A. thatB. whatC. whichD. when答案解析：A。
“It seems that...”是固定句型，that 引导主语从句后置，it 作形式主语。
选项B“what”在从句中需充当成分；选项C“which”通常引导定语从句；选项D“when”引导时间状语从句。
5. It is reported that a new bridge will be built next year.A. thatB. whatC. whichD. when答案解析：A。
八年级英语主语从句练习题40题1. It is important that we study hard.A.thatB.whatC.whichD.who答案：A。
解析：“It is important that...”是固定句型，that 引导的主语从句在句中作真正的主语，it 作形式主语。
选项B、C、D 均不符合该句型要求。
2. It is known to all that the earth is round.A.thatB.whatC.whichD.when答案：A。
解析：“It is known to all that...”是常见句型，that 引导的主语从句在句中作真正的主语，it 作形式主语。
选项B、C、D 均不符合该句型要求。
3. It is a pity that he missed the game.A.thatB.whatC.whichD.who答案：A。
解析：“It is a pity that...”是固定用法，that 引导的主语从句在句中作真正的主语，it 作形式主语。
选项B、C、D 均不符合该句型要求。
4. It seems that he is very busy.A.thatB.whatC.whichD.who答案：A。
解析：“It seems that...”是常用句型，that 引导的主语从句在句中作真正的主语，it 作形式主语。
选项B、C、D 均不符合该句型要求。
5. It is said that he is a good student.A.thatB.whatC.whichD.who答案：A。
解析：“It is said that...”是常见表达，that 引导的主语从句在句中作真正的主语，it 作形式主语。
选项B、C、D 均不符合该句型要求。
6. It is reported that there will be a football match tomorrow.A.thatB.whatD.when答案：A。
主语从句重点练习50题1. _____ is important for us to learn English well.A. ThatB. ItC. ThisD. What答案：B。
本题考查it 作形式主语的主语从句。
It 在句中作形式主语，真正的主语是后面的动词不定式短语“to learn English well”。
A 选项“that”引导主语从句时，在句中不充当任何成分；C 选项“this”一般不引导主语从句；D 选项“what”在主语从句中充当成分，而本句不缺成分。
2. _____ makes mistakes must correct them.A. WhoB. AnyoneC. WhoeverD. Anybody答案：C。
“whoever”引导主语从句，表示“无论谁”。
A 选项“who”表示“谁”，没有“无论谁”的意思；B 选项“anyone”不是引导词；D 选项“anybody”也不是引导词。
3. _____ he will come or not is unknown.A. WhetherB. IfC. ThatD. What答案：A。
whether 引导主语从句，表示“是否”，且whether...or not 是固定搭配。
B 选项“if”也表示“是否”，但不能与or not 连用；C 选项“that”在主语从句中不表示“是否”；D 选项“what”在句中充当成分，本句不缺成分。
4. _____ we need is more time.A. ThatB. WhatC. WhetherD. If答案：B。
本题考查what 引导的主语从句。
what 在从句中充当need 的宾语。
A 选项“that”在从句中不充当成分；C 选项“whether”表示“是否”；D 选项“if”也表示“是否”。
5. _____ she did is not known.A. WhatB. HowC. ThatD. Where答案：A。
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。
主语从句专项练习 (含答案)1.XXX.2.That her hair was XXX.3.It is not known when and why he came here.4.The fact that she was a few minutes late is no reason for dismissing her.5.What Tom liked to eat was different from what you had expected.6.If we go swimming every day。
it does us a lot of good.7.It XXX Bob drives badly.8.XXX uncertain.1.XXX.2.XXX.3.The time and reason for his arrival here are unknown.4.The fact that she was a few minutes late is not a valid reason for dismissal.5.XXX'XXX.6.XXX.7.It is believed that Bob is a poor driver.8.The value of the experiment is uncertain.9.The fact that the boy XXX.10.What we can't get seems better than what we have.11.XXX you like him or not is none of my business.12.XXX.13.Who is going to do the job will be decided by the Party XXX.14.When we'll finish translating the book depends on the time.15.Why he won't go there is clear to all of us.16.What the house will be built like will be discussed XXX.17.Whether you come or not is up to you.18.Is it true that the famous scientist will give us a lecture next week?29.B。
