高中名词性从句练习题及答案详解[1]
高中名词从句练习题1.The place _______interested me most was the Children's Palace.A. WhichB. whereC. whatD. in which2.Do you know the man _______?A. whom I spokeB. to who spokeC. I spoke toD. that I spoke3.This is the hotel _______last month.A. which they stayedB. at that they stayedC. where they stayed atD. where they stayed4.Do you know the year ______the Chinese Communist Party was founded?A. whichB. thatC. whenD. on which5.That is the day ______I'll never forget.A. whichB. on whichC. in whichD. when6.The factory ______we'll visit next week is not far from here.A. whereB. to whichC. whichD. in which7.Great changes have taken place since then in the factory _______we are working.A. whereB. thatC. whichD. there8.This is one of the best films _______.A. that have been shown this yearB. that have shownC. that has been shown this yearD. that you talked9.Can you lend me the book ______the other day?A. about which you talkedB. which you talkedC. about that you talkedD. that you talked10.The pen ______he is writing is mine.A. with whichB. in whichC. on whichD. by which11.They arrived at a farmhouse, in front of ______sat a small boy.A. whomB. whoC. whichD. that12.The engineer ______my father works is about 50 years old.A. to whomB. on whomC. with whichD. with whom13.It there anyone in your class ______family is in the country?A. whoB. who'sC. whichD. whose14.I'm interested in ______you have said.A. all thatB. all whatC. thatD. which15.I want to use the same dictionary ______was used yesterday.A. whichB. whoC. whatD. as16.He isn't such a man ______he used to be.A. whoB. whomC. thatD. as17.He is good at English, ______we all know.A. thatB. asC. whomD. what18.Li Ming, ______to the concert enjoyed it very much.A. I went withB. with whom I wentC. with who I wentD.I went with him19.I don't like ______ as you read.A. the novelsB. the such novelsC. such novelsD. same novels20.He talked a lot about things and persons ________they remembered in the school.A. whichB. thatC. whomD. what21.The letter is from my sister, ______is working in Beijing.A. whichB. thatC. whomD. who22.In our factory there are 2,000 workers, two thirds of ____are women.A. themB. whichC. whomD. who23.You're the only person ______I've ever met ______could do it.A. who;/B./; whomC. whom;/D./; who24.I lost a book, ______I can't remember now.A. whose titleB. its titleC. the title of itD. the title of thatst summer we visited the West Lake, ______Hangzhou is famous in the world.A. for whichB. for thatC. in whichD. what26.I have bought such a watch _______ was advertised on TV.A. thatB. whichC. asD. it27.I can never forget the day _______ we worked together and the day ______ we spent together.A. when; whichB. which; whenC. what; thatD. on which; when28.The way ______he looks at problems is wrong.A. whichB. whoseC. whatD./29.This is the reason ______he didn't come to the meeting.A. in whichB. with whichC. thatD. for which30.This machine, ______for many years, is still working perfectly.A. after which I have lookedB. which I have looked afterC. that I have looked afterD. I have looked after31.The reason ______he didn't come was ______he was ill.A. why; thatB.that;whyC. for that;thatD.for which;what32.He is working hard, ______will make him pass the final exam.A.thatB.whichC.for whichD.who33.That is not the way ______I do it.A./B.whichC.for whichD.with which34.I have two grammars, ______are of great use.A. all of whichB. either of whichC. both of thatD. both of which35.I want to use the same tools _______used in your factory a few days ago.A. as wasB. which wasC. as wereD. which36.My neigh bours used to give me a hand in time of trouble, _______ was very kind of them.A. whoB. whichC. thatD. it37.This is the magazine _______ I copied the paragraph.A. thatB. whichC. from thatD. from which38.He is not such a man _______ would leave his work half done.A. thatB. whichC. whoD. as39. You can depend on whatever promise _______ he makes.A. /B. whyC. whenD. whose参考答案及解析1. A. which用作关系代词，在定语从句中作主语。
2．C. "和谁讲话”要说speak to sb. 本题全句应为Do you know the man whom I spoke to.。
whom是关系代词，作介词to的宾语，可以省略。
3. D. where是关系副词，表示地点，在定语从句中作地点状语。
4. C. when是关系副词，表示时间，在定语从句中作时间状语。
5．A. which是关系代词，在从句中作forget的宾语。
其他几个答案都不能作宾语。
6．C. 解析同第5题。
7. A. 解析见第3题。
8. A. 本句话的先行词应该是films,因此，关系代词that是负数概念，其谓语动词应用复述的被动语态have been shown。
如果句中的one前面使用了定冠词the，则the one应该视为先行词。
9. A. “谈到某事物”应说talk about sth.。
名词性从句练习题(含答案)经典
名词性从句练习题(含答案)经典一、名词性从句1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply.A. thatB. howC. whatD. which【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。
分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。
【点评】考查名词性从句，本题涉及what引导的主语从句。
2．Has it been announced ______?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. when the planes are to take off【答案】 D【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗？此处是when引导的主语从句，且要用陈述句语序，故选D。
【点评】考查名词性从句，it作形式主语，关系副词when引导的从句作真正的主语。
3．In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question.A. focused; whetherB. focused; ifC. has focused; whetherD. has focused; if【答案】 C【解析】【分析】考查时态和主语从句。
根据In the past decade,在最近的几十年里，可知句子用现在完成时态，our education system是句子的主语，单数形式，所以第一空填has focused；第二空是主语从句做主语，if是否，不能引导主语从句，所以第二空填whether。
高一英语名词性从句练习题20题答案解析版
高一英语名词性从句练习题20题答案解析版1. I wonder ______ we can get to the airport in time.A. thatB. ifC. whatD. which答案解析：B。
本题考查宾语从句。
在这个句子中，“I wonder”后面是一个宾语从句，表示“我想知道是否我们能及时到达机场”。
选项A“that”在宾语从句中无实际意义，通常用于陈述一个事实，在这里不符合句子语境。
选项C“what”在名词性从句中充当主语、宾语或表语等成分，这里不需要表示“什么”的含义，所以不选。
选项D“which”表示“哪一个”，也不符合句子要表达的“是否”的意思，所以正确答案是B。
2. ______ he will come to the party makes me excited.A. WhetherB. ThatC. IfD. What答案解析：A。
这是一个主语从句。
句子的意思是“他是否会来参加聚会让我很兴奋”。
选项B“that”引导主语从句时，只起连接作用，不表示任何意义，通常用于陈述一个事实，而这里是表示不确定的“是否”，所以不选。
选项C“if”虽然也有“是否”的意思，但不能引导位于句首的主语从句，所以排除。
选项D“what”在从句中要充当一定的成分，这里不需要，所以正确答案是A。
3. She told me ______ she had seen in the museum.A. thatB. whichC. whatD. where答案解析：C。
本题是宾语从句。
“She told me”后面的从句中，“she had seen”缺少宾语，表示“她告诉我她在博物馆看到了什么”。
选项A“that”在从句中无实际意义，这里需要一个表示“什么”的词来作宾语，所以不选。
选项B“which”表示“哪一个”，有一定的范围限制，这里没有体现，所以不合适。
选项D“where”表示地点，在从句中作状语，不符合句子需求，因此正确答案是C。
高一英语名词性从句单选题50题(含答案)
高一英语名词性从句单选题50题(含答案)1. I believe ____ he will come back soon.A. thatB. ifC. whetherD. when答案：A。
解析：“I believe that+句子”是固定用法，表示“我相信……”。
选项B“if”表示“是否”“如果”；选项C“whether”也表示“是否”；选项D“when”表示“什么时候”。
在这个句子中，表达的是确定的相信，所以用that。
2. She told me ____ she had finished her homework.A. thatB. ifC. whetherD. what答案：A。
解析：“She told me that+句子”表示“她告诉我……”。
选项B“if”和选项C“whether”用于表示不确定的情况；选项D“what”引导的是宾语从句，要在从句中充当成分，此句不缺成分。
3. We know ____ the earth is round.A. thatB. ifC. whetherD. which答案：A。
解析：“We know that+句子”是常见表达，表示“我们知道……”。
选项B“if”和选项C“whether”不合适，此句是确定的事实；选项D“which”要在从句中有选择的意思，这里不适用。
4. He said ____ he was going to the park.A. thatB. ifC. whetherD. where答案：A。
解析：“He said that+句子”表示“他说……”。
选项B“if”和选项C“whether”在这个语境中不恰当；选项D“where”引导的是地点状语从句，这里不需要。
5. I think ____ it will rain tomorrow.A. thatB. ifC. whetherD. when答案：A。
解析：“I think that+句子”表示“我认为……”。
名词性从句练习100题[附答案解析]
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名词性从句专练（一）1. Nowadays consumers become more and more practical and buy only _______ they need.A. whereB. whichC. whenD. what2. She’d like to offer money to ________ needs it to continue his or her study.A. whoB. whomC. whoeverD. whomever3. ---If you are admitted to a key university, _________ as a prize? --- I’m looking for a cell phone.A. What you expect your father will offer youB. Do you expect what your father will offer youC. What do you expect will your father offer youD. What do you expect your father will offer you4. Yesterday he sold out all his stamps at ____ he thought was a reasonable price.A. thatB. whichC. whatD. as5. Generally speaking, ____ we have seen seems more believable than ____we have been told.A. what; thatB. what; whatC. that; whatD. that; that6. After three days’ waiting, there was a little doubt in the mother’smind _______ the police could find her lost child.A. howB. thatC. whereD. whether7. “Sustainable development” is a question _______ we can continuedeveloping the world without damaging the environment.A. whyB. whenC.that D. how8. We’d like to do _______ we can _________ the poor.A. how; helpB. all; to helpC. whatever; helpD. however; to help9. My parents used ________they had to get a new car for my brother.A. whichB. all whatC. whatD. 不填10. She was so angry at all ________ he was doing _________ she stayed up all night.A. that; thatB. that; whichC. what; thatD. what; as11. After _________ seemed ages, the newsman disclosed the facts.A. thereB. whichC. whatD. that12. Our school is no longer _________ it was 10 years ago, _________ it was not well equipped.A. what; whichB. that; whichC. what; whenD. that; where13. Our bad living habits will destroy the earth. Only by changing ________we live can we save the earth.A. thatB. whatC. howD. where14. Thinking that you know _________ in fact you don’t is a serious mistakeA. whatB. thatC. whenD. however15. Energy is _________ makes things work.A. whatB. everythingC. somethingD. anything16. One of the men held the view __________the book said was right.A. that whatB. what thatC. thatD. whether17. I think that this meal was well worth ________ was charged for it.A. thatB. whatC. whichD. how many18. Do you think the reason ________ he gave is believable?A. for whichB. whichC. whyD. what19. Although he knew little about the large amount of work done in thefield, he succeeded ________ other more well-informed experimenters failed.A. whichB. thatC. whatD. where20. Although Anne is happy with her success she wonders________ willhappen to her private life.A. itB. thatC. whatD. this21. The news has spread all over the country ________ the spaceshipsucceeded in returning to the earth.A. thatB. whichC. whetherD. what22. You can choose ________ book you like among these.A. no matter whatB. whateverC. whoseD. whichever23. Is this research center ________ we visited the modern equipment last year?A. whereB. thatC. the oneD. which24. Loulan city is not at all _______a traveler who has never seen the desert before can expect.A. whatB. that C .which D. where25. What the doctor is uncertain about is ______ my mother will recover from the serious disease soon.A. whenB. howC. whetherD. why26. We should buy our daughter a computer in ______ it can help to improve her English.A. whichB. thatC. whatD. whom27. I wish to have a friend with ______ shares my hobbies and interests.A. whomeverB. no matter whoC. whoeverD. anyone28. Why don’t you bring _______ to his attention that you are too busy to do it.A. thisB. whatC. thatD. it29. The task required _______ did it ______ careful and brave enough.A. who; isB. whom; wasC. whomever; wereD. whoever; be30. We wrote a letter of thanks to _______ had helped us.A. whoB. thoseC. whomD. whoever31.--- What are you anxious about?--- ___________.A. Whether we can succeedB. If we succeedC. Do you succeedD. That we can succeed32. I just don’t understand_______ that prevents so many Americans from being as happy as one might expect.A .why it does B. what it does C. what it is D.why it is33. ---I rang you at about ten, but there was no reply.---Oh, that was probably _________ I was seeing the doctor.A. whenB. whyC. whatD. that34. I kept this picture ________ I can see it every day as it reminds me of my university days.A. in whichB. whereC. whenD. whether35. ---I can’t find Mr. Smith .Where did you last see him this morning?---It was in the hotel _______ he stayed.A. thatB. whereC. whichD. since36. You should keep those old jam bottles ----you never know ______ you might need them.A. whenB. how.C. what D .where37. ---Do you have anything in mind ______you’d like for supper ?---Well, ______will do for me.A. which, everythingB. that, anythingC. what, whateverD. that, either38. After five hours’ drive, they reached _____ they thought was the place they’d been dreaming of .A. thatB. whatC. whichD. where39. It is recommended that the project ___ until all the preparations have been made.A. is not startedB. not be startedC. will not be startedD. is not to be started40.______ has finished the work ahead of time will be rewarded though we don't know who it will be.A. Those whoB. AnyoneC. WhoeverD. No matter who41. ______ makes the school famous is ______ more than 90% of the students have been admitted to universities.A. What; becauseB. That; becauseC. That; whatD. What; that42. Everything depends on _____ they will support you about it.A. ifB. whichC. whetherD. that名词性从句专练（二）43. After ten years, she changed a lot and looked different from___ she used to be.A. thatB. whomC. whatD. who44. I know nothing about the young lady--- ______ she is from Being.A. exceptB. except forC. except thatD. besides45. The question came up at the meeting _____we had enough money for our research.A. thatB. whatC. whichD. whether46. __________ a terrible storm would take place in Hainan.A. Word came whichB. Word came thatC. Word that cameD. Words came that47. _________ David says sounds right to Helen. That’s why she has made up her mind not to leave him________ happens.A. whatever; whateverB. No matter what; whateverC. No matter what; no matter whatD. Whatever; however48. Mr. Hopkins has not yet answered my question________ I can go with him to ________ he calls the Underground Treasure House next week.A. that; whichB. that; whereC. whether; thatD. whether; what49. --- Don’t you believe me?--- ________, I will believe _________ you say.A. No; whateverB. Yes; no matter whatC. No; no matter whatD. Yes; whatever50. __________ is mentioned above, the number of the students in senior high school is increasing.A. WhichB. AsC. ThatD. It51. See the flags on top of the building? That was ______ we did this morning.A. whenB. whichC. whereD. what52. “What did your parents think about your decision?”“They always let me do ______ I think I should.”A. whenB. thatC. howD. what53. “Could you do me a favor?”“It depends on ____ it is.”A. whichB. whicheverC. whatD. whatever54. There is much chance ____ Bill will recover from his injury in time for the race.A. thatB. whichC. untilD. if55. ______ makes this shop different is that it offers more personal services.A. WhatB. WhoC. WhateverD. Whoever56. Mary wrote an article on _______ the team had failed to win the game.A. whyB. whatC. whoD. that57. The poor young man is ready to accept _______ help he can get.A. whicheverB. howeverC. whateverD. whenever58. As soon as he comes back, I’ll tell him when ______and see him.A. you will comeB. will you comeC. you comeD. do you come59. ______ in the regulations that you should not tell other people the password of your e-mail account.A. What is requiredB. What requiresC. It is requiredD. It requires60. Elephants have their own way to tell the shape of an object and _______ it is rough or smooth.A. 不填B. whetherC. howD. what61. The way he did it was different _______ we were used to.A. in whichB. in whatC. from whatD. from which62. Great changes have taken place in that school. It is no longer ____ it was 20 years ago, ______ it was so poorly equipped.A. what; whenB. that; whichC. what; whichD. which; that63. Danby left word with my secretary ________ he would call again in the afternoon.A. whoB. thatC. asD. which64. “Don’t you think it necessary that he _______ to Miami but to New York?”“I agree, but the problem is ________ he has refused to.”A. will not be sent; thatB. not be sent; thatC. should not be sent; whatD. should not send; what65. Some researchers believe that there is no doubt ________ a care for AIDS will be found.A. whichB. thatC. whatD. whether66. The old lady’s hand shook fr equently. She explained to her doctor ________ this shaking had begun half a year before, and ______, only because of this, she had been forced to give up her job.A. when; howB. how; whenC. how; howD. why; why67. Do you have any idea _______ is actually gong on in the classroom?A. thatB. whatC. asD. which68. I want to know ________ the thief was caught on the spot.A. whichB. thatC.what D. whether69. Our club is open to adults only. _______ your children have entered without permission.A. There seems thatB. It seems to beC. There seems to beD. It seems that70. You are saying that everyone should be equal, and this is ________I disagree.A. whyB. whereC. whatD. how71. The road is covered with snow. I can’t understand _______ they insist on going by motorbike.A. whyB. whetherC. whenD. how72. We cannot figure out _______ quite a number of insects, birds, and animals are dying out.A. thatB. asC. whyD. when73. The Foreign Minister said, “_______ our hope that the two sides will work towards peace.”A. This isB. There isC. That isD. It is74. A story goes _______ Elizabeth 1 of England liked nothing more than being surrounded by clever and qualified noblemen at court.A. whenB. whereC. whatD. that75. I have al ways been honest and straightforward, and it doesn’t matter ____ I’m talking to.A. who is itB. who it isC. it is whoD. it is whom76. The other day, my brother drove his car down the street at ________I thought was a dangerous speed.A. asB. whichC. whatD. that77. After Yang Liwei succeeded in circling the earth, ______ our astronauts desire to do is walk in space.A. whereB. whatC. thatD. how78. Along with the letter was his promise _______ he would visit me this coming Christmas.A. whichB. thatC. whatD. whether79. A modern city has been set up in ________ was a wasteland ten years ago.A. whatB. whichC. thatD. where80. I think father would like to know ________ I’ve been up to so far, so I decide to send him a quick note.A. whichB. whyC. whatD. how81. Parents are taught to understand ________ important education is to their children’s future.A. thatB. howC. suchD. so82.It is pretty well understood _________ controls the flow of carbon dioxide in and out the atmosphere today.A. thatB. whenC.what D. how83. ---Are you still thinking about yesterday’s game?---Oh, that’s _________.A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited84. There is a new problem involved in the popularity of private cars _________ road conditions need ________.A. that; to be improvedB. which; to be improvedC. where; improvingD. when; improving85. _________ made the school proud was __________ more than 90% of the students had been admitted to key universities.A. What; becauseB. What; thatC. That; whatD. That; because86. There’s a feeling in me _______ we’ll never know what a UFO is –not ever.A. thatB. whichC. of whichD. what87. Perseverance is a kind of quality—and that’s ____ it takes to do anything well.A. whatB. thatC. whichD. why88. ---I think it’s going to be a big problem.---Yes, it could be.---I wonder _________ we can do about it.A. ifB. howC. whatD. that89. __________ fashion differs from country to country may reflect thecultural differences from one aspect.A. WhatB. ThatC. ThisD. Which90. When you answer questions in a job interview, please remember the golden rule: Always give the monkey exactly __________ he wants.A. whatB. whichC. whenD. that91. A computer can only do __________ you have instructed it to do.A. howB. afterC. whatD. when92. Information has been put forward __________ more middle school graduates will be admitted into universities.A. while B that C. when D. as93. I read about it in some book or other. Does it matter ___________ it was?A. where B what C how D. which94. Little Tommy was reluctant to tell the schoolmaster____ he had done the day before.A. that B how C. where D .what95._________ she couldn’t understand was __________ fewer and fewer students showed interest in her lessons.A. What; whyB. That; whatC. What; becauseD. Why; that96. Someone is ringing the doorbell. Go and see _________.A. who is heB. who he isC. who is itD. who it is97. These wild flowers are so special I would do __________ I can to save them.A. whateverB. thatC. whichD. whichever98. It was a matter of __________ would take the position.A. whoB. whoeverC. whomD. whomever99. _________ we’ll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where100. It worried her a bit _________her hair was turning grey.A. whileB. thatC. ifD. for名词性从句练习100题---答案1 DCDCB;10DDBCA11 CCCAA;20ABBDC21 ADAAC;30 BCDDD31 ACABB;40 ABBBC41 DCCCD; 50 BADDB 51 DDCAA;60 ACACB61 CABBB;70 CBDDB71 ACDDB;80 CBBAC81 BCAAB;90 AACBA91 CBDDA;100 DAABB。
高一英语名词性从句区分辨析练习题40题(答案解析)
高一英语名词性从句区分辨析练习题40题(答案解析)1._____ makes the book so fascinating is its vivid descriptions.A.WhatB.ThatC.WhichD.Who答案解析：A。
“What makes the book so fascinating”是主语从句，what 在从句中作主语，表示“使这本书如此迷人的东西”。
that 在名词性从句中不充当成分，只起连接作用，此处不合适。
which 表示“哪一个”，在主语从句中一般要有特定的范围，此处没有范围不合适。
who 表示“谁”，不符合语境。
2._____ he will come or not is still uncertain.A.IfB.WhetherC.ThatD.When答案解析：B。
“Whether he will come or not”是主语从句，whether 表示“是否”，在主语从句中引导“是否”的情况时只能用whether 不能用if。
that 在名词性从句中不充当成分，只起连接作用，此处不合适。
when 表示“什么时候”，不符合语境。
3._____ surprised us most was his excellent performance.A.WhatB.ThatC.WhichD.Who答案解析：A。
“What surprised us most”是主语从句，what 在从句中作主语，表示“最让我们惊讶的事情”。
that 在名词性从句中不充当成分，只起连接作用，此处不合适。
which 表示“哪一个”，在主语从句中一般要有特定的范围，此处没有范围不合适。
who 表示“谁”，不符合语境。
4._____ is known to all, the earth is round.A.AsB.ThatC.WhichD.What答案解析：A。
“As is known to all”是固定用法，as 引导非限制性定语从句，指代后面整个句子“the earth is round”。
高一名词性从句练习20题(答案解析)
高一名词性从句练习20题(答案解析)1._____ makes this book so special is its unique perspective.A.WhatB.WhichC.ThatD.Who答案解析：A。
“What makes this book so special”是主语从句，what 在从句中作主语。
B 选项“Which”通常表示在特定范围内的选择，此处不合适；C 选项“That”在主语从句中不充当成分，且此处句子缺少主语成分；D 选项“Who”通常指人，而此处说的是书特别的原因，不是人。
2.I don't know _____ he will come or not.A.ifB.whetherC.thatD.when答案解析：B。
“whether...or not”是固定搭配，引导宾语从句。
A 选项“if”不能与“or not”连用；C 选项“That”在宾语从句中不表示“是否”的意思；D 选项“When”表示时间，不符合题意。
3._____ he said at the meeting surprised us all.A.WhatB.ThatC.WhichD.Who答案解析：A。
“What he said at the meeting”是主语从句，what 在从句中作宾语。
B 选项“That”在主语从句中不充当成分，且此处句子缺少宾语成分；C 选项“Which”通常表示在特定范围内的选择，此处不合适；D 选项“Who”通常指人，而此处不确定具体指人。
4.Can you tell me _____ you are waiting for?A.whoB.whomC.thatD.which答案解析：A。
“who you are waiting for”是宾语从句，wait for sb，sb 是宾语，但是在这个句子中缺少的是“谁”这个主语，所以用who。
B 选项“whom”只能作宾语；C 选项“That”在宾语从句中不表示“谁”的意思；D 选项“Which”通常表示在特定范围内的选择，此处不合适。
高二英语名词性从句练习题30题(答案解析)
高二英语名词性从句练习题30题(答案解析)1._____ is known to us all is that the 2024 Olympics will be held in Paris.A.ItB.WhatC.AsD.Which答案解析：B。
本题考查主语从句。
“What is known to us all”在句中作主语，what 在主语从句中充当主语，表示“……的事情”。
A 项it 不能引导主语从句；C 项as 引导的非限制性定语从句，位置可放于句首，不符合本题结构；D 项which 表示“哪一个”，在主语从句中有选择的意味，本题中并无选择之意。
2._____ he will come or not is still a question.A.IfB.WhetherC.ThatD.When答案解析：B。
本题考查主语从句。
“Whether he will come or not”在句中作主语，whether 表示“是否”，引导主语从句，且在“whether...or not”结构中只能用whether 不能用if。
A 项if 不能引导主语从句放在句首；C 项that 引导主语从句无实际意义，在本句中不符合语境；D 项when 引导主语从句表示时间，不符合本题语境。
3._____ surprised me most was that he passed the exam.A.WhatB.ThatC.WhichD.It答案解析：A。
本题考查主语从句。
“What surprised me most”在句中作主语，what 在主语从句中充当主语，表示“……的事情”。
B 项that 引导主语从句无实际意义，在本句中不符合语境；C 项which 表示“哪一个”，在主语从句中有选择的意味，本题中并无选择之意；D 项it 不能引导主语从句。
4._____ makes this shop different is that it offers more personal services.A.WhatB.WhoC.WhichD.Why答案解析：A。
高三英语名词性从句练习题30题(带答案)
高三英语名词性从句练习题30题(带答案)1. ______ we need is more time.A. WhatB. WhichC. ThatD. Who答案：A解析：这是一个主语从句。
从句中need缺少宾语，what可以在主语从句中充当主语、宾语等成分，表示“所……的事物”，这里表示“我们所需要的东西”是更多的时间。
which表示“哪一个”，有选择范围；that在名词性从句中不充当成分，没有意义；who表示“谁”，指人，均不符合题意。
2. I wonder ______ he will come to my birthday party.A. thatB. whetherC. whichD. what答案：B解析：这是一个宾语从句。
根据句子意思“我想知道他是否会来参加我的生日聚会”，这里表示一种不确定性，所以用whether“是否”。
that引导宾语从句时无意义，不表示疑问；which表示“哪一个”；what 表示“什么”，都不符合语境。
3. The question is ______ we can finish the work on time.A. thatB. whetherC. whichD. what答案：B解析：这是一个表语从句。
句子表达的是“问题是我们是否能按时完成工作”，存在疑问的语气，所以用whether。
that在表语从句中无意义，不表示疑问；which表示“哪一个”；what表示“什么”，均不符合句子意思。
4. The news ______ our team has won the game is exciting.A. thatB. whichC. whatD. whether答案：A解析：这是一个同位语从句。
“our team has won the game”是对the news的具体内容的解释说明，同位语从句中连接词用that，that在句中不充当任何成分。
高三英语名词性从句练习题30题(答案解析)
高三英语名词性从句练习题30题(答案解析)1._____ makes the new technology so popular is its convenience.A.WhatB.ThatC.WhichD.Who答案解析：A。
“What makes the new technology so popular”是主语从句，what 在从句中作主语。
that 在主语从句中不充当成分，which 表示“哪一个”，在主语从句中使用有限制，who 表示“谁”，不符合语境。
2._____ won the Nobel Prize in Literature this year is still a mystery.A.WhoB.WhomC.WhichD.What答案解析：A。
“Who won the Nobel Prize in Literature this year”是主语从句，who 在从句中作主语。
whom 是宾格，不能作主语；which 表示“哪一个”，不符合语境；what 表示“什么”，也不符合语境。
3._____ is reported that a new bridge will be built across the river.A.ItB.ThatC.What答案解析：A。
“It is reported that...”是固定句型，it 作形式主语，真正的主语是that 引导的主语从句。
that 在主语从句中不充当成分；what 和as 不符合此句型。
4._____ he will come or not is still uncertain.A.WhetherB.IfC.ThatD.What答案解析：A。
“Whether he will come or not”是主语从句，whether 表示“是否”，在主语从句中只能用whether 不能用if；that 在主语从句中不充当成分，且不符合语境；what 表示“什么”，也不符合语境。
高一英语名词性从句练习题50题含答案解析
高一英语名词性从句练习题50题含答案解析1._____ wins the election will face many challenges.A.WhoB.WhomC.WhoeverD.Whomever答案解析：C。
“Whoever”在主语从句中表示“无论谁”，在本句中引导主语从句，并且在从句中作主语。
“Who”虽然也可以引导主语从句作主语，但语气没有“Whoever”强烈。
“Whom”和“Whomever”在从句中作宾语，不符合本句要求。
2._____ he will come or not is still uncertain.A.ThatB.WhetherC.IfD.What答案解析：B。
“Whether”引导主语从句表示“是否”，在句中不能用“If”代替，“That”在主语从句中不表示“是否”，“What”引导主语从句在句中要充当成分，不符合本句要求。
3._____ is known to all is that the earth is round.A.WhatB.ThatC.AsD.It答案解析：A。
“What is known to all”是主语从句，“What”在从句中作主语，“That the earth is round”是表语从句。
“That”引导主语从句时在句中不充当成分，“As”引导非限制性定语从句，“It”作形式主语时后面要有真正的主语从句，不符合本句要求。
4._____ caused the accident remains a mystery.A.WhatB.ThatC.WhoD.Which答案解析：A。
“What caused the accident”是主语从句，“What”在从句中作主语，表示“什么”。
“That”在主语从句中不充当成分，“Who”表示“谁”，不符合本句语境，“Which”表示“哪一个”，也不符合本句要求。
5._____ she said at the meeting surprised us all.A.WhatB.ThatC.WhenD.How答案解析：A。