主语从句专项练习题
高中英语主语从句用法练习题50题(答案解析)
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
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”。
高一英语主语从句的用法练习题40题(带答案)
高一英语主语从句的用法练习题40题(带答案)1. ______ made her mother angry was that she didn't pass the exam.A. ItB. WhatC. ThatD. Which答案解析：B。
本题考查主语从句的引导词。
在这个句子中，“______ made her mother angry”是主语从句，这个从句中缺少主语，表示“什么让她妈妈生气”，所以要用what来引导。
选项A的it不能引导主语从句；选项C的that在主语从句中不充当任何成分，只起连接作用，这里从句缺少成分，所以不选；选项D的which表示“哪一个”，不符合句子意思。
2. ______ we will go for a picnic tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where答案解析：B。
这里考查主语从句的引导词。
“______ we will go for a picnic tomorrow”是主语从句，表示“我们明天是否去野餐”，if不能引导主语从句放在句首，所以A错误；whether有“是否”的意思，可以引导主语从句，B正确；that在主语从句中不充当成分，这里从句需要表达“是否”的意思，C错误；where表示地点，不符合句子意思，D错误。
3. ______ is known to all, China is a developing country.A. ItB. AsC. ThatD. Which答案解析：B。
在这个句子中，“______ is known to all”是主语从句。
as引导的主语从句可以放在句首，有“正如”的意思，这里表示“正如大家所知道的”。
it不能引导这种形式的主语从句，A错误；that引导主语从句时，在句中不充当成分，这里需要有“正如”的意思，C错误；which不能引导这种放在句首表示“正如”意思的主语从句，D错误。
九年级英语主语从句练习题50题(带答案)
九年级英语主语从句练习题50题(带答案)1. ______ we need is more time.A. ThatB. WhatC. WhichD. It答案解析：B。
本题考查主语从句。
在这个句子中，“______ we need”是主语从句部分，在主语从句中缺少宾语，表示“我们所需要的（东西）”，what可以在主语从句中充当主语、宾语或表语等成分，所以这里用what。
that在主语从句中不充当成分，which表示“哪一个”，it不能引导主语从句，所以A、C、D都不正确。
2. ______ he will come to the party is not certain.A. WhetherB. IfC. ThatD. What答案解析：A。
这里考查主语从句的引导词。
“______ he will come to the party”是主语从句，表示“他是否会来参加聚会”，在主语从句中表示“是否”且引导主语从句只能用whether，if不能引导主语从句，that在句中无意义且不充当成分，what在句中要充当成分，所以B、C、D不符合要求。
3. ______ makes this shop different is that it offers more personalservices.A. WhatB. WhoC. WhateverD. Whoever答案解析：A。
此句中“______ makes this shop different”是主语从句，在这个主语从句中缺少主语，表示“使这个商店不同的（（东西）”，what可以在主语从句中充当主语等成分，who表示“谁”，主要用于指人，whatever表示“无论什么”，有让步的含义，whoever表示“无论是谁”，也是指人，所以B、C、D都不合适。
4. It is known to all ______ the earth goes around the sun.A. thatB. whatC. whichD. whether答案解析：A。
主语从句练习50题
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
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)
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。
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. 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。
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主语从句专项练习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 ________ 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 yo u had expectedC. That…what you had expectedD. What…wh at you had expected6.________ we go swimming every day ________ us a lot of good.A. If...doB. That...doC. If...doesD. That...does________ Bob drives badly.A. thinks thatB. is thought whatC. thought thatD. is thought that8.It's uncertain ________ the experiment is worth do ing.A. ifB. thatC. WhetherD. how9.________ the boy didn't take medicine made his mo ther angry.A. ThatB. WhatC. HowD. Which10.____ we can't get seems better than ____ we have.A. What, whatB. What, thatC .That, that D. 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 w eather.A. IfB. WhetherC. ThatD. Wheregoing to do the job will be decided by the Part y committee.A. ThatB. WhyC. HowD. Who14._______we'll finish translating the book depends o n the time.A. WhenB. WhyC. WhatD. That15.______he won't go there is clear to all of us.A. HowB. WhatC. WhyD. Thishouse 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. Whohelped to save the drowning girl is worth praising.A. WhoB. The oneC. AnyoneD. Whoever22. It was_ ______he said___ ____disappointed me.A. what ; thatB. that; thatC. what; whatD. that; what’ll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where24. _______he said at the meeting surprised everybody present.A. WhatB. ThatC. The factD. The matter25. _______was to return to school.A. That really interested himB. What really interested himC. Which really interested himD. That interest him really26. _______ makes mistakes must correct them.A. WhatB. ThatC. WhoeverD. Whateverhe made an important speech at the meeting was true.A. ThatB. WhyC. WhatD. How28. ________we’ll go camping tomorrow depends on the weather.A IfB WhetherC ThatD Where29. It worried her a bit ______ her hair was turning gray.A. whetherB. thatC. whatD. when30. What I say and think ___ none of your business.A. isB. areC. hasD. have31．The Foreign Minister said, “______ our hope that the two sides will worktowards peace.”A. This isB. There isC. That isD. It is32．After Yang Liwei succeeded in circling the earth, _____ our astronauts desire to do is walk in space.A. whereB. whatC.that D. how 33．____ is not known yet.A. When she has goneB. Where she has goneC. How did she leaveD. Why did she go34．______ is unfit for the office.A. It seems to me thatB. It seems to me that heC. That seems heD. That seems to him that35．_______man must fear when traveling in space is radiation from the sun.A. WhichB. HowC. WhatD. That36._______ beat Xiao Wang black and blue is not known.37. A. Whom B.WhoeverC. WhoD. What37．________matters much ________ the headmaster supports our activity.A．It; whether B．What; whetherC．As; that D．That; if38．________ is known to us all is that the Chinese governmenthas spared no efforts to protect people from fake food.A．As B．ItC．That D．What39．________ Premier Wen Jiabao visited the United States led to the closer relationship between the two countries.A．Which B．WhatC．That D．As40. It is obvious to the students ________ they should get wellprepared for their future.A．as B．whichC．whether D．that41. It is uncertain ________side effect the medicine will bring about，although about two thousand patients have taken it.A. thatB. whatC. howD.whether42. The villagers have already known ______ we'll do is torebuild the bridge.A．this B．thatC．what D．which43. It is still under discussion ________the old bus stationshould be replaced with a modern hotel or not.A．whetherB．whenC．whichD．whereBarbara Jones offers to her fans is honesty and happiness.A. WhichB. WhatC. ThatD. Whom45. It was never clear ________ the man hadn't reported the accident sooner.A. thatB. howC. whenD. why46. _____ as much as one-fifth of all timber harve sted is not used.A. The estimateB. The estimatedC. They are estimatedD. It is e stimated that47. _____ some mammals came to live in the sea is not known.A. WhichB. Si nceC. AlthoughD. How48. _____ we have achieved is attributed to the gu idance of our parents.A. WhoeverB. What everC. HoweverD. That49. _____ 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 is50. Although ___ happened in this developed country sounds like science fiction, itcould occur elsewhere in the world.A. whichB. whatD. it51. _____ she had forgotten to take her notebook.A. That occurred to herB. She occurred thatC. To her that occurredD. It occurred to her that52. I am sure that _____ she said is wrong.A. which B . allC. thisD. what53. We lost our way in the forest, and ____ made matters worse was that it wasgetting dark.A. thatB. whichD. what54. _____ or not is still uncertain.A. He’s comingB. If he is comingC. That comingD. Whether he’s coming55. It’s_____ he’ll be able to come.A. doubt whetherB. doubtfulC. doubt itD. doubtful whether56. ______ he is at work in the heart of the big city o r at home in the quiet suburb, Dick’s lifeis tied to machines.A. WhetherB.TillC. If57. _____ he saw both surprised and frightened hi m.A. ThatB. WhenC. WhatD. Which58. _____ is warm sunshineA. What do we all need.B. What all we needC. What we needD. What we all need59._____ is a pity that he should feel so upset.A. WhatB. ThatC. He60._____ a spoonful of soil can tell us so much about the str ucture and early history of the moon.A. RemarkableB. Quite remarkablyC. It is remarkable thatD. It is remarkable fact that主语从句练习题答案1-5 CBACD 6-10 DDCAA 11-15 CBDAC 16-20 BDBAC 21-25 DABAB 26-30 CABBA 31-35 DBBBC 36-40 CADCD 41-45 BCABD 50-55 ADCBC 56-60 BBDCB。