初中英语主语从句练习及答案

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初三主语从句练习题

初三主语从句练习题主语从句是句子中的一个从句，在句中担任主语的角色。

它由一个引导词（如that, whether, who, which, when, where, why等）以及一个主语和谓语构成。

在英语语法中，主语从句的使用非常灵活，可以大大丰富句子的表达方式。

下面是一些初三主语从句练习题，通过练习可以更好地理解和掌握主语从句的使用方法。

练习一：选择正确的主语从句1. __________ will win the singing competition has not been decided yet.A) Why B) What C) How D) Who2. __________ the package was stolen remains a mystery.A) Where B) What C) How D) If3. __________ she said made me extremely happy.A) What B) Whether C) Why D) When4. __________ it would rain tomorrow worried the farmers.A) Why B) If C) Where D) How5. __________ eats too much sugar will get cavities.A) When B) Who C) Whether D) Why练习二：填入适当的主语从句1. _________ he is qualified for the job is yet to be determined.2. _________ caused the accident is still unclear.3. _________ we can go to the party depends on whether our parents allow us.4. _________ the train will arrive is uncertain at the moment.5. _________ he can join the team depends on his performance in the tryouts.练习三：改写句子，使用主语从句1. James is an excellent basketball player. It is widely known.->_____________________________________________________________ __________________2. It was raining heavily. This was unexpected.->_____________________________________________________________ __________________3. They are having a meeting. What they are discussing is not known.->_____________________________________________________________ __________________4. The movie was disappointing. That surprised everyone.->_____________________________________________________________ __________________5. The reason for his absence wasn't clear. It made his teacher worried.->_____________________________________________________________ __________________答案及解析：练习一：1. D 2. B 3. A 4. B 5. B这些题目主要考察对不同引导词的理解。

主语从句练习题及答案

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.________ the boy didn't take medicine made his mother angry.A. ThatB. WhatC. HowD. Which4.____ you don't like him is none of my business.A. WhatB. WhoC. ThatD. Whether5._______we'll finish translating the book depends on the time.A. WhenB. WhyC. WhatD. That6.______the house will be built will be discussed at tomorrow's meeting.A. IfB. WhereC. ThatD. What7._______team will win the match is a matter of public concern.A. WhichB. ThatC. IfD. How8. It was_ ______he said___ ____disappointed me.A. what ; thatB. that; thatC. what; whatD. that; what9._______we’ll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where10. _______was to return to school.A. That really interested himB. What really interested himC. Which really interested himD. That interest him really11. _____ he made an important speech at the meeting was true.A. WhatB. ThatC. WhoeverD. Whatever12．________matters much ________ the headmaster supports our activity.A．It; whether B．What; whetherC．As; that D．That; if13. It is obvious to the students ________ they should get well prepared for their future.A．as B．whichC．whether D．that14. It is uncertain ________side effect the medicine will bring about，although about two thousandpatients have taken it.A. thatB. whatC. howD. whether15. It was never clear ________ the man hadn't reported the accident sooner.A. thatB. howC. whenD. why答案1-5 CBACA6-10 BAABB11-15 BADDD。

初一英语主语从句引导词练习题20题

初一英语主语从句引导词练习题20题1._____ he will come to the party is not sure.A.ThatB.WhetherC.WhatD.When答案：B。

解析：“he will come to the party”是一个主语从句，在这个句子中，“is not sure”表示不确定，根据语境，不确定他是否会来参加派对，所以用“Whether”引导主语从句，表示“是否”。

“That”引导主语从句时，在句中不充当任何成分，也没有实际意义，此处不符合。

“What”引导主语从句时在句中充当主语、宾语等成分，此处不符合。

“When”引导主语从句表示时间，此处不符合。

2._____ she likes music is known to all.A.ThatB.WhetherC.WhatD.Which答案：A。

解析：“she likes music”是一个主语从句，在这个句子中，“is known to all”表示众所周知，“她喜欢音乐”这件事是确定的，所以用“That”引导主语从句，在句中不充当任何成分，也没有实际意义。

“Whether”表示“是否”，此处不符合。

“What”引导主语从句时在句中充当主语、宾语等成分，此处不符合。

“Which”引导主语从句表示在特定范围内的选择，此处不符合。

3._____ they will go on a trip depends on the weather.A.ThatB.WhetherC.WhatD.When答案：B。

解析：“they will go on a trip”是一个主语从句，“depends on the weather”表示取决于天气，对于他们是否会去旅行不确定，所以用“Whether”引导主语从句，表示“是否”。

“That”引导主语从句时在句中不充当任何成分，也没有实际意义，此处不符合。

“What”引导主语从句时在句中充当主语、宾语等成分，此处不符合。

主语从句练习题

主语从句练习题主语从句是英语中的一种从句结构，用来作为主句的主语。

它能够使句子更加丰富，表达更加灵活。

在日常交流和写作中，主语从句的使用非常常见。

下面是一些主语从句练习题，帮助大家更好地理解和掌握主语从句的用法。

1. ___________ is not clear yet. (what / if)这句话表示“是否清楚尚不清楚。

”，使用了主语从句来作为句子的主语。

正确答案是if。

2. ___________ is important to have a balanced diet. (what / that)这句话表示“保持均衡的饮食很重要。

”，使用了主语从句来作为句子的主语。

正确答案是that。

3. ___________ was a surprise to me. (it / that)这句话表示“那让我感到惊讶。

”，使用了主语从句来作为句子的主语。

正确答案是that。

4. ___________ dealt with the issue in a professional manner. (she / it)这句话表示“她以专业的方式处理了这个问题。

”，使用了主语从句来作为句子的主语。

正确答案是she。

5. ___________ is still uncertain. (whether / which)这句话表示“还不确定。

”，使用了主语从句来作为句子的主语。

正确答案是whether。

6. ___________ is not easy to master. (when / what)这句话表示“什么不容易掌握。

”，使用了主语从句来作为句子的主语。

正确答案是what。

7. ___________ is believed to be true. (it / that)这句话表示“相信是真实的。

”，使用了主语从句来作为句子的主语。

正确答案是that。

8. ___________ is no guarantee of success. (hard work / that)这句话表示“努力工作并不能保证成功。

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60题(最新整理)

1.______Li Bai,a great Chinese poet,was born is known to the public,but some won’t accept it.A.ThatB.WhyC.WhereD.How[答案] 1.C[解析] 1.句意:李白,中国伟大的诗人,出生在什么地方人人皆知,但是有些人对此并不接受。

本题考查主语从句。

“______Li Bai,a great Chinese poet,was born”为主语从句,该从句缺少状语,结合选项可知答案应为C。

2.If you swim in a river or lake,be sure to investigate______is below the water surface.Often there are rocks or branches hidden in the water.A.whatB.whoC.thatD.whoever[答案] 2.A[解析] 2.句意:如果你在河里或湖里游泳,一定要查明水下的状况。

经常会有岩石或树枝隐藏在水中。

本题考查名词性从句。

动词investigate后的宾语从句中缺少主语,同时主语为物,故排除B、C、D三项。

根据句意可知选A。

3.______we understand things has a lot to do with what we feel.A.WhereB.HowC.WhyD.When[答案] 3.B[解析] 3.句意:我们怎样理解事物与我们的认知有很大关系。

本题考查名词性从句。

A项在从句中作地点状语;B项在从句中作方式状语,意为“如何”;C项意为“为什么”;D项意为“什么时候”。

故选B项。

4.I truly believe______beauty comes from within.A.thatB.whereC.whatD.why[答案] 4.A[解析] 4.句意:我确信美丽源自内心。

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。

初中英语主语从句(附答案)

A．That saidB．That’s saidC．It’s saidD．It said
12．I think my teachers are fair. _______ in our class breaks the rule will surely be punished.
A．WhoB．WhomC．Whoever
10．—It seems ______ you like to work with children.
—Yes, they are so lovely.
A．thatB．whatC．why
11．________ that more than two thousand people die of the COVID-19. It makes us feel scared.
37．Angela是多善良的女孩啊！她总是乐意帮助有困难的人。
_________ _____________________________ Angela is! She is always ready to help people in need.
38．我会一直等我妈妈直到她回来。
I __________ ___________ __________ my mum ___________ she comes back.
13．__________ comes in must keep quiet.
A．WhateverB．WheneverC．HoweverD．Whoever
14．________ is known to us all is that the Chinese government has spared no efforts to save people from dying of the outbreak of disease.

(完整版)主语从句超全练习试题和答案解析

主语从句练习题[即学即用]I. 用适当的词填空，使句子意思完整。

1. ______ he didn’t attend the meeting yesterday wasn’t quite clear.2. The Foreign Minister said, “It is our hope ______ the two sides will work towards peace.”3. ______ team will win the match is still unknown.4. ______ comes to the party will receive a present.5. ______ Mary has left is still a question.6. It’s reported ______ three people were killed in the accident and five were hurt badly.7. ______ he solved the problem successfully interested all of us.8. We usually think ______ we can’t get seems better than what we have.9. It is a fact ______ English is being accepted as an international language.10. ______ is to be sent there to solve the problem hasn’t been decided. II. 下列各句中均有一处错误，请改正。

1. That the old man’s son wanted to know was where the gold had been hidden.2. It is reported when China has successfully sent Shenzhou VI spaceship into space.3. If he can finish his task on time is of great importance.4. Whether the 2008 Olympic Games will be held in Beijing excited the whole nation.5. After Yang Liwei succeeded in circling the earth, which our astronauts desire to do is walk in space.6. Whatever leaves the room last ought to turn off the lights.7. Why they will solve the serious problem today has not been decided.8. When will win the English competition is still a problem.9. How our spring sports meet will be held or not this week is not known yet.10. It’s strange when he should have gone away without telling us. GRAMMAR主语从句学习指导[寻规找矩] 请观察下列句子，注意主语从句的用法。

主语从句重点练习50题

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。

主语从句超全练习题及答案

主语从句练习题[即学即用]I. 用适当的词填空，使句子意思完整。

主语从句专项练习 (含答案)

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。

(完整版)主语从句练习及答案

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. _____ was once regarded as impossible has now become a reality.A. ThatB. WhichC. WhoD. What3. _____ we have achieved is attributed to the guidance of our parents.A. WhoeverB. WhateverC. HoweverD. That4. _____ you say now can’t make up for what you’ve done.A. No matterB. WhateverC. HoweverD. That5. 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. _____ occurred to him that he had forgotten to lock the door when he left home.A. ThisB. ItC. ThatD. These10. _____ 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. It is _____ that the bridge has existed for more than three centuries .A. appearedB. risenC. saidD. born13. _____ 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 failed in the race.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 remarkable17. _____ you nominate will be elected.A. WhoB. WhichC. WhomeverD. That’s18. _____ book you borrow must be returned within a week.A. WhatB. WhichC. WhicheverD. That’s19. _____ is troubling me is that I don’t have much experience in international commerce.A. ItB. ThatC. WhichD. What20. _____they wil go there to try another experiment has not been decided yet.A. WhetherB. IfC. About whetherD. Why根据提示，完成句子。

主语从句超全练习题及答案

主语从句超全练习题及答案主语从句练题I.用适当的词填空，使句子意思完整。

1.Why XXX.2.The Foreign Minister said,“It is our hope that the two sides will work towards peace.”3.Which team will win the match is still unknown.4.XXX to the party will receive a present.5.Whether Mary has left is still a n.6.It’XXX.7.XXX us.8.We usually think what we can’t get seems better than what we have.9.It is a fact that English is being accepted as an nal language.10.Who is to be sent there to solve the problem hasn’t been decided.II.下列各句中均有一处错误，请改正。

1.What the old man’s son wanted to know was where the gold had been hidden.2.It XXX.3.XXX his task on time is of great importance.4.Whether the 2008 Olympic Games will be held in Beijing XXX(改为：That the 2008 Olympic Games will be held in Beijing XXX.)5.XXX。

XXX is to walk in space.6.The last person leaving the room should turn off the lights.7.The reason why they will solve the us problem today has not been decided yet.8.It is still XXX.9.It is currently unknown whether our spring sports meet will be held this week or not.10.It'XXX.主语从句研究指导：1.That the earth travels round the sun is a well-known fact.2.It is uncertain whether the artist can do it or not.3.Who will play the lead in the play has not been decided yet.4.Where the young man has gone is not known.5.When and where the test will be given is not yet decided.常见错误展示：1.It is common knowledge that light travels XXX.2.XXX.3.What the professor said is of great importance.4.Where the trees will be planted has not been decided。

主语从句练习题及答案

主语从句练习题及答案A. The estimateB. The estimateC. They are estimatedD. It is estimated that2. _____ was once regarded as impossible has now become a reality.A. ThatB. WhichC. WhoD. What3. _____ we have achieved is attributed to the guidance of our parents.A. WhoeverB. WhateverC. HoweverD. That4. _____ you say now can’t make up for what you’ve done.A. No matterB. WhateverC. HoweverD. That5. Although _____ happened in this developed country sounds like science fiction, itcould 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 wasgetting dark.A. thatB. whichC. itD. what9. _____ occurred to him that he had forgotten to lock the door when he left home.A. ThisB. ItC. ThatD. These10. _____ 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. It is _____ that the bridge has existed for more than three centuries .A. appearedB. risenC. saidD. born13. _____ 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 remarkable17. _____ you nominate will be elected.A. WhoB. WhichC. WhomeverD. That’s18. _____ book you borrow must be returned withina week.A. WhatB. WhichC. WhicheverD. That’s19. _____ is troubling me is that I don’t have much experience ininternational commerce.A. ItB. ThatC. WhichD. What20. _____they wil go there to try another experiment has not been decided yet.A. WhetherB. IfC. About whetherD. Why根据提示，完成句子。

初中主语从句练习题

初中主语从句练习题一、选择题1. 根据题目所给的选项，选择正确的主语从句填空。

A. What he saidB. That he saidC. He said whatD. What he said was答案：A2. 选择正确的主语从句来完成句子。

- _______ is known to all that the earth is round.A. ItB. WhatC. ThatD. As答案：B3. 选择一个合适的主语从句来填空。

- _______ he will come to the party is not certain.A. IfB. WhetherC. ThatD. What答案：B二、填空题4. 用适当的连接词填空，使句子完整。

- _______ he will succeed is a question.答案：Whether5. 完成下列句子。

- _______ she likes the gift is obvious.答案：That6. 用适当的连接词填空。

- _______ you need to do is to study hard.答案：What三、改错题7. 找出下列句子中的错误并改正。

- What he did is wrong.- _______ he did _______ _______.答案：What he did was wrong.8. 改正下列句子中的错误。

- That she is very clever is true.- _______ _______ _______ _______ _______.答案：It is true that she is very clever.四、翻译题9. 将下列中文句子翻译成英文，并使用主语从句。

- 他是否通过考试还是个问题。

答案：Whether he passed the exam is still a question.10. 翻译下列句子，注意使用正确的主语从句。

初一英语主语从句引导词练习题30题

初一英语主语从句引导词练习题30题1<背景文章>Tom is a middle school student. He has a big dream. He wants to be a famous scientist. But he knows that it's not easy. He needs to work hard.Tom spends a lot of time studying. He reads books and does experiments. He also asks his teachers and classmates for help.One day, Tom heard about a science competition. He decided to take part in it. He worked even harder. He stayed up late every night to prepare for the competition.Finally, the day of the competition came. Tom was very nervous. But he remembered his dream and tried his best. To his surprise, he won the first prize.Tom was very happy. He knew that his hard work had paid off. Now he is more confident than ever. He believes that he can achieve his dream one day.1. Tom's dream is to be a ___.A. teacherB. scientistC. doctorD. writer答案：B。

主语从句练习之宾语从句(含答案解析,全国统用)

主语从句练习之宾语从句(含答案解析,全国统用)1. 选择正确的宾语从句的形式填空：1. I don't know ________.- a. where does she live.- b. where she lives.- c. where she live.2. Can you tell me ________?3. He asked me ________.- a. what I want.- b. what do I want.- c. what I wanting.4. They wonder ________.- a. when will she arrive.- b. when she will arrive.- c. when does she arrive.5. Please let me know ________.- a. when will you be available.- b. when you will be available.- c. when are you available.2. 宾语从句的解析和说明：1. 正确答案为 b. where she lives.- 解析：在宾语从句中，由于是陈述句，应使用陈述句的语序，即主语 + 谓语动词 + 其他成分，所以选 b。

- 解析：在宾语从句中，由于是疑问句，应使用疑问句的语序，即疑问词 + 倒置语序，所以选 a。

3. 正确答案为 a. what I want.- 解析：在宾语从句中，由于是陈述句，应使用陈述句的语序，即主语 + 谓语动词 + 其他成分，所以选 a。

4. 正确答案为 b. when she will arrive.- 解析：在宾语从句中，由于是陈述句，应使用陈述句的语序，即主语 + 谓语动词 + 其他成分，所以选 b。

5. 正确答案为 b. when you will be available.- 解析：在宾语从句中，由于是陈述句，应使用陈述句的语序，即主语 + 谓语动词 + 其他成分，所以选 b。

初中英语主语从句练习及答案

初中英语主语从句练习及答案主语从句练习单项选择题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. _____ was once regarded as impossible has now become a reality.A. ThatB. WhichC. WhoD. What3. _____ we have achieved is attributed to the guidance of our parents.A. WhoeverB. WhateverC. HoweverD. That4. _____ you say now can’t make up for what you’ve done.A. No matterB. WhateverC. HoweverD. That5. Although _____ happened in this developed country sounds like science fiction, itcould 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 wasgetting dark.A. thatB. whichC. itD. what9. _____ occurred to him that he had forgotten to lock the door when he left home.A. ThisB. ItC. ThatD. These10. _____ 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. It is _____ that the bridge has existed for more than three centuries .A. appearedB. risenC. saidD. born13. _____ 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 thestructure and early history of the moon.A. RemarkableB. Quite remarkablyC. It is remarkable thatD. It is remarkable17. _____ you nominate will be elected.A. WhoB. WhichC. WhomeverD. That’s18. _____ book you borrow must be returned within a week.A. WhatB. WhichC. WhicheverD. That’s19. _____ is troubling me is that I don’t have much experience in international commerce.A. ItB. ThatC. WhichD. What20. _____they wil go there to try another experiment has not been decidedyet.A. WhetherB. IfC. About whetherD. Why根据提示，完成句子。

主语从句详解及练习-附答案

主语从句详解及练习-附答案语法要点剖析一、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 i s 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。