高考英语定语从句知识点全集汇编含答案(4)
高考英语复合句知识点全集汇编含答案解析(4)
高考英语复合句知识点全集汇编含答案解析(4)一、选择题1．__________ is no possibility __________ Bob can win the first prize in the match . A．There ; whether B．There ; that C．It ; whether D．It ; that2．I want to tell you is the deep love and respect I have for my parents.A．That B．Which C．Whether D．What3．_________ my heart still beats, I will go on working for the people.A．As soon as B．As far as C．As long as D．As much as4．________ the sales figure of the new range of products is relatively small, the potential market is large.A．Unless B．After C．Since D．While5．________ birds use their feathers for flight, some of their feathers are for other purposes. A．Once B．If C．Although D．Because 6．English is a language shared by several diverse cultures, each of ________ uses it somewhat differently.A．which B．what C．them D．those7．The result of his experiment led to the conclusion______ ice will decrease when it melts. A．/B．what C．which D．that8．Life is like a long race _______ we compete with each other to go beyond ourselves. A．where B．which C．that D．what9．The companies are working together to create _________ they hope will be the best means of transport in the 21st century.A．which B．that C．one D．what10．During the holiday I bought a CD player, _____ was rather reasonable.A．its price B．of which priceC．the prices of which D．whose price11．You'll find taxis waiting at the bus station ________ you can hire to reach your host family. A．which B．whereC．when D．as12．Until now, we have raised 100,000 pounds for the poor children, ___________ is quite unexpected.A．that B．which C．who D．it13．______would like to devote his whole life to his country should go______there are all kinds of difficulties.A．Who;some B．Whoever;whereC．Whatever; anywhere D．Who;there14．Occasions are quite rare ____ I have the time to spend a day with my kids.A．who B．which C．why D．when15．The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.A．which B．when C．as D．where16．_________I saw him, I knew he was the man the police were looking for.A．The place B．The week C．The day D．The instant 17．She has a gift for creating an atmosphere for her students ________ allows them to communicate freely with each other.A．which B．whereC．what D．who18．In my view, ______ impresses me about her writing is the passion she shows.A．who B．which C．what D．whether19．______the phone call, the construction site is crowded with workers full of joy and excitement.A．On receiving B．As soon as receiving C．The Moment he receivedD．Receiving20．My parents live in a small village. They always keep candles in the house _____ there is a power out.A．if B．unlessC．in case D．so that21．I am interested in_________ you have improved your spoken English in such a short time. A．how B．which C．when D．if22．She brought with her three friends，none of ________ I had ever met before.A．them B．who C．whom D．these23．In boxing, players should wear gloves and mouth guards ________ anything dangerous happens.A．in vain B．in a word C．in debt D．in case24．I'll be out for some time. ______ anything important happens, call me up immediately. A．In case B．As ifC．Even though D．Now that25．We came to a place ______ they had never paid a visit before.A．in which B．to which C．what D．which【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【分析】【详解】考查固定句型。
高考英语代词知识点专项训练解析含答案(4)
高考英语代词知识点专项训练解析含答案(4)一、选择题1．Most of the parents think their approaches to raising children different from _____ of their parents.A．thatB．thisC．itD．those2．I’d appreciate ________ if you could let me know in advance whether or not you will come. A．it B．youC．one D．this3．________ occurred to me that I had left my shirt on the playground.A．It B．One C．That D．What 4．Standard Cognition, a startup company. in California, has developed technology that works like of Amazon Go, but it seeks to sell its artificial intelligence system to businesses for use in their own storesA．the one B．those C．that D．one5．________ was a desperate race against time to land the plane before it ran out of fuel. Fortunately, the young pilot made it eventually.A．It B．This C．What D．As6．—Oh，my English novel is missing.—I saw Tom leaving with ________，but I am not sure whether yours was included.A．one B．itC．some D．that7．I hate _______ when people talk with their mouths full.A．it B．that C．these D．them8．Jim sold most of his things.He has hardly___left in the house.A．anything B．everythingC．nothing D．something9．The English spoken in the United States is only slightly different from spoken in England. A．which B．what C．that D．the one 10．“Made in China 2025” aims to transform China from a product-making factory into a product-making power, ______________ driven by innovation and emphasizing quality over quantity.A．the one that B．one thatC．one D．the one11．As the busiest woman in Norton, she made _____ her duty to lo ok after all the other people’s affairs in that town.A．this B．it C．that D．one12．In my opinion, there’s no greater happiness than of succeeding in one’s career.A．one B．itC．that D．those13．___________is said that the technology behind RealCine is virtual reality.A．It B．That C．What D．This14．In the past, ____didn’t make much of a difference to your success____ you had a good family background.A．that; if B．it; whether C．that; whether D．it; if15．Is this hospital __________ you visited yesterday?A．who B．that C．where D．the one16．Our school makes _______ a rule that students______ bring their mobile phones to campus. A．it; needn’t B．it; mustn’tC．that; mustn’t D．that; needn’t17．I’d appreciate ____ if you would like to teach me how to use this c omputer.A．that B．thisC．you D．it18．The coat I bought yesterday is the same ____.A．as you B．as you areC．as yours D．like you19．Which of the following sentences is WRONG?A．There is no point in arguing with him further.B．There is no need to worry about your son –he’s fine.C．There is no doubt that we will finish all the work in two days.D．There is a wonder that he remained alive after dropping form the tall building.20．In American the relation between parents and children is usually not so close as _______of the Chinese family.A．that B．it C．one D．the other 21．Did _______ ever occur to you that you would end up in prison if you continued behaving like that?A．what B．which C．that D．it22．No matter how busy he is, Tom makes ______a rule to see his parents every week. A．this B．that C．it D．him 23．Theoretically, there are many solutions to such a problem, but it is not easy tofind________easy to put into practice.A．that B．one C．it D．the one二、1324．They have done much of the work; when will ________ be finished?A．the rest B．the otherC．another D．the others25．---Would you like some chicken?---Yes, please. It's my favourite. I think is more delicious than chicken.A．anything B．somethingC．nothing D．everything【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【详解】考查代词。
高考英语定语从句知识点易错题汇编及解析(4)
高考英语定语从句知识点易错题汇编及解析(4)一、选择题1．Giving credit where credit is due is a good habit to form, ____________ rewards are immeasurable.A．which B．where C．whose D．its2．I’ve come to the point____I can’t stand her arguing any longer.A．why B．which C．that D．where3．Such a film ___________ was shown in the cinema yesterday is not suitable for children. A．as B．that C．which D．/4．The book tells stories of the earthquake through the eyes of those lives were affected A．whose B．thatC．who D．which5．In the darkness we felt our way forward, trying to cross the stream _______ it was shallowest. A．in which B．that C．as D．where6．The background music is such wonderful music _______ is played in the background to put you in a particular mood.A．what B．that C．as D．which7．The middle and high school period is a special one for children, a transition from children to adult, ______ children tend to be rebellious (反抗的).A．when B．where C．that D．of which 8．Liberty, equality, and fraternity are the ideals _______ human beings have been fighting. A．to which B．against which C．with which D．for which9．All of us were so excited at the news ____we’ll go abroad for holidays ___we jumped with joy. A．that; that B．what; and then C．what; that D．which; so10．In China, “mythical creatures” is used to describe troublesome schoolchildren ________ behaviors drive their parents crazy.A．whose B．when C．who D．of whom11．The Molalla High School has a wall of Post-it notes ________ students write kind messages for kids to take when they have a bad day.A．that B．which C．when D．where12．The reason ________ he didn’t come to school on time is ________ he had to take care of his sick brother at home.A．That; because B．that; that C．why; because D．why; that 13．Mr. Smith owned this oil painting until the early 1990 s, ____________he gave it to his grandson.A．which B．when C．where D．who14．A good advertisement often uses words ________people attach positive meanings.A．that B．which C．with which D．to which15．The commander got a chance to visit the mountain_____ top was covered with thicksnow ,____ he had been dreaming of for years.A．that; which B．whose ; which C．of which ; what D．of whom ;that16．I shall never forget those years _______ I spent on the farm with the farmers, _______ has a great effect on my life.A．when; who B．that; which C．which; that D．when; which 17．The course normally attracts 60 students per year, ______up to half are from Europe.A．in which B．for whom C．with which D．of whom 18．Even Amundsen was moved by Scott's death saying "Captain Scott left a record, for honesty, sincerity, for bravery, for everything _______makes a man".A．that B．which C．who D．不填19．This restaurant has an inviting, homelike atmosphere ______ many others are short of. A．where B．when C．which D．what20．During the holiday I bought a CD player, _____ was rather reasonable.A．its price B．of which priceC．the prices of which D．whose price21．We have entered into an age _______ dreams have the best chance of coming true. A．which B．what C．when D．that 22．Eventually, the butterfly manages to reach the place____________ it will spend the winter. A．which B．when C．that D．where23．The tower, _________ was destroyed in the terrible storm, has been repaired.A．the roof B．which roof C．its roof D．the roof of which 24．Life is like a long race _______ we compete with each other to go beyond ourselves. A．where B．which C．that D．what25．Car races are recorded and uploaded to YouTube and other video platforms, ______________ they can be viewed repeatedly.A．which B．where C．when D．there【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【解析】【分析】【详解】考查定语从句。
高考英语连词知识点技巧及练习题含答案(4)
高考英语连词知识点技巧及练习题含答案(4)一、选择题1．_____ you receive my e-mail informing you of my absence, expect me on Friday at about 6 p.m.A．Unless B．Until C．While D．Although 2．Students should involve themselves in community activities they can gain experience for growth.A．who B．when C．which D．where3．"We are here to help because we are one family _____we live in different parts of the world, "said the volunteer.A．in that B．even thoughC．so that D．as though4．Granny always keeps her cellphone switched off _________she's expecting a call．A．Since B．unlessC．once D．when5．91．—Take a taxi, you won't get the airport in time.—OK, I will. See you!A．instead B．thusC．otherwise D．meanwhile6．The villagers have already known ___________ we’ll do is to rebuild the bridge.A．this B．thatC．what D．which7．I do every single bit of housework ______ my husband Bob just does the dishes now and then．A．since B．whileC．when D．as8．The government has taken some measures to solve the shortage of electricity , but it may be some time _________the situation improves.A．since B．whenC．before D．unless9．______ Mr Johnson _______his wife enjoy tennis.A．Either, or B．Both, and C．Not only, but also D．neither, nor 10．He was about to tell me the secret _______ someone patted me on the shoulder.A．that B．whichC．when D．until11．It is known to all that _______ you exercise regularly, you won’t keep good health. A．unless B．whenever C．although D．if12．______the damage is done, it will take many years for the farmland to recover.A．UntilB．UnlessC．OnceD．Although13．Steve Jobs once said, “Innovation(创新) distinguishes between a leader and a follower.” Just remember: ________ you start to think creatively, the whole world is going to be following. A．Although B．Where C．Unless D．Once14．The secretary made a note of it _____ she should forget.A．in order that B．in caseC．so that D．ever when15．The stranger shook me by the hand warmly ________ he were to say he knew me well. A．even if B．when C．if D．as if16．If you don’t understand something, yo u may research, study, and talk to other people_______ you figure it out.A．because B．thoughC．until D．since17．I was taught to sit quietly in class and not to speak______ someone asked me a question. A．When B．unless C．because D．if18．The cost of living in Glasgow is among the lowest in Britain, ______ the quality of life is probably one of the highest.A．since B．when C．as D．while19．No sooner had the lecture come to an end ______ the crowds of students poured out of the stadium.A．when B．until C．so that D．than20．Well-educated employees can undertake most common jobs easily, ________ the efficiency of the society is guaranteed.A．so that B．even if C．in that D．as if21．The growth of GDP in China will be largely slowed down in the next few years ________it mainly relies on the exploration of the resources available.A．because of B．due to C．thanks to D．now that22．________ the sales figure of the new range of products is relatively small, the potential market is large.A．Unless B．After C．Since D．While 23．Some pressure is good for you ________ it can help you try harder.A．unless B．althoughC．before D．as24．Actually, our hobbies vary a lot—I like outdoor activities, _________ square dance is my wife’s preference.A．although B．when C．while D．as25．When fac ed with danger, don’t panic, ______ you will find a solution.A．or B．but C．so D．and【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【解析】【详解】考查状语从句。
高考英语洛阳定语从句知识点真题汇编含答案
高考英语洛阳定语从句知识点真题汇编含答案一、选择题1．_____ is often the case, we have worked out the production plan.A．Which B．When C．What D．As2．The book tells stories of the earthquake through the eyes of those lives were affected A．whose B．thatC．who D．which3．Optimism is the essential ingredient of top performers,__________we assume separates the high achievers from the rest.A．as B．who C．which D．that4．John invited about 40 people to his wedding, most of are family members. A．them B．thatC．which D．whom5．The students in Shanghai are using the same textbooks _______ we are now using.A．as B．that C．which D．whose6．She brought with her three friends，none of ________ I had ever met before.A．them B．who C．whom D．these7．People often turn to china _____they’ll find valuable information regarding everything they’ll be or are going through.A．which B．where C．when D．why8．She's always suggesting ways ______ I can improve my cooking. I know she means well but this really annoys me.A．that B．which C．how D．when 9．Detectives are investigating the company, three of ________ senior executives have already been under arrest.A．its B．which C．those D．whose10．Allen is good at seizing every opportunity ____ he thinks he can show his best self to others. A．when B．that C．where D．which11．The man took out a knife and made a mark ____ his sword was dropped, confusing the passengers on board.A．from where B．what C．on which D．where12．She has a gift for creating an atmosphere for her students ________ allows them to communicate freely with each other.A．which B．whereC．what D．who13．You were very impolite to him, for _____ you should make an apology to him, I think. A．this B．which C．what D．that14．I'm glad to introduce Mr.Smith to you,without______my experiment would have ended in failure.A．whom help me B．his help C．whose help D．who help15．I don't think he is the suitable person，for he____experience，____is essential for the job.A．lacks；which B．lacking；as C．lacks of；which D．lacked；that 16．—Where was the experiment carried out?—It was in the lab built in the 30s_______Mr. Smith worked as an assistant professorA．that B．which C．where D．when17．I shall never forget those years _______ I spent on the farm with the farmers, _______ has a great effect on my life.A．when; who B．that; which C．which; that D．when; which 18．The course normally attracts 60 students per year, ______up to half are from Europe.A．in which B．for whom C．with which D．of whom 19．One day, my two brothers and I were coming back from the islands _______ we often risked going and got more fish than othersA．which B．when C．in which D．where20．John invited about 40 people to his wedding, most of _______are family members. A．who B．which C．whom D．what21．The anti-epidemic fight is like a time-limited race _______ all medical care personnel make every effort to people's lives.A．that B．when C．which D．where22．The tower, _________ was destroyed in the terrible storm, has been repaired.A．the roof B．which roof C．its roof D．the roof of which 23．This is the last factory ________ he used to work at, many workers of _______ still have a good relationship with him.A．/; it B．which; whom C．/; which D．which; that24．It was the typhoon ________was called Tiange hit Zhuhai and Macao.A．which;that B．what;which C．that;who D．that;which 25．The art festival is an annual event ______ the students can show off their talents. A．where B．that C．which D．as【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】试题分析：引导非限制性定语从句且位于主句之前，用as引导。
高考英语语法定语从句讲解与练习附答案
定语从句与高考定语从句是高考的热点，主要考查关系代词和关系副词的正确运用，特别是它们在非限制性定语从句中的运用。
主要考点有：1.关系代词who, which, that, whom, as, whose的基本用法。
2.关系副词when, where, why的基本用法。
3.定语从句中关系词的特殊用法。
4.定语从句中“介词＋关系代词”介词的确定。
5. which/ as引导的非限制性定语从句的区别。
一、定语从句的分类限制性定语从句定语从句非限制性定语从句二、限制性定语从句和非限制性定语从句的区别区别一：形式不同限定性定语从句主句和从句之间不用逗号隔开；而非限定性定语从句与主句之间通常____用___逗号隔开。
区别二：功能不同限定性定语从句用于对先行词的意义进行修饰、限制和识别，如果去掉，就会造成句意____不明确___；而非限定性定语从句用于对先行词起补充说明作用，如果省略，句意不影响。
如：People who take physical exercise live longer. 进行体育锻炼的人活得长些。
(若把从句去掉句子就失去意义)His daughter, who is in Boston now, is coming home next week. 他女儿现在在波士顿，下星期回来。
(若把从句去句子意义仍然完整)比较下面的两个句子：I have a sister who is a doctor. 我有一个当医生的姐姐。
(姐姐不止一个)I have a sister, who is a doctor. 我有一个姐姐，她是当医生的。
(只有一个姐姐)区别三：翻译不同在翻译定语从句时，一般把限定性定语从句翻译在它所修饰的先行词之前，而把非限定性定语从句与主句分开。
如：He is the man whose car was stolen. 他就是汽车被窃的那个人。
I’ve invited Jim, who lives in the next flat. 我邀请了吉姆，他就住在隔壁。
高中定语从句讲解与练习（附答案）
高中定语从句讲解与练习（附答案）定语从句专项讲解与练习1、定语从句在句中修饰某个名词或代词，被定语从句修饰的词叫先行词。
定语从句需用下列关联词：关系代词和关系副词。
它们起连词作用，本身做从句的主语、宾语、表语或定语，本身在从句中作时间、地点或原因状语。
主要有who, whom, that, whose, which, as, when, where, why。
PS:what不能引导定语从句. 指人的关系代词有who、whose、whom、that. 指物的关系代词有which、whose(=of which)、that.The old man who/whom /that we visited yesterday is a famous artist.Miss Wang is taking care of the child whose parents have gone to Beijing .The man with whom my father shook hands just now is our headmaster. （=The man who/whom/ that my father shook hands with just now is our headmaster.）I like the books which / that were written by Lu Xun.The desks (which/that) we made last year were very good.This is the house in which we lived last year. (= This is the house which /that we lived in last year.)I live in the room whose windows face south. (= I live in the room ,the windows of which face south.)2、掌握以上关系代词、关系副词的含义及使用时，要特别注意以下几点：1）指人时宜用who 的情况：a. 当先行词是one, ones, anyone 或those , these 时，关系代词用who。
高考英语定语从句知识点全集汇编及答案解析
高考英语定语从句知识点全集汇编及答案解析一、选择题1．I am looking forward to the day ________ my daughter can read this book and know my feelings for her.A．as B．why C．when D．where2．I’ve come to the point____I can’t stand her arguing any longer.A．why B．which C．that D．where3．The background music is such wonderful music _______ is played in the background to put you in a particular mood.A．what B．that C．as D．which4．We all have times of insecurity in life, _____ there is nothing to do but bravely face the feelings of doubt.A．which B．when C．where D．that5．He bought a new building _____top is different from those of the others around.A．what B．which C．that D．whose6．5G is an exciting mobile technology, ________ will give a massive boost to smart cities and vehicles.A．where B．when C．that D．which7．—How did you find your way here？—It was by following the travel brochure _____ the route is clearly clarified.A．that B．how C．where D．which8．My brother bought a telescope, ______ he could study the star in the night sky.A．of which B．through which C．in which D．on which9．The students in Shanghai are using the same textbooks _______ we are now using.A．as B．that C．which D．whose10．The beautiful dress _______ Miss Jones went to the ball was borrowed from a friend of hers. A．that B．which C．in which D．wearing which 11．He pointed out such a crucial detail about the experiment ______ we could never neglect. A．as B．that C．where D．when12．Many nurses, ______ were retired, headed for affected areas to help.A．most of which B．most of whomC．most of them D．most of who13．You were really between a rock and a hard place ______ you had to choose between your career and your relationship.A．when B．where C．before D．until14．The other two areas ________ the two varieties differ are spelling and pronunciation.A．in that B．from which C．with which D．in which 15．Occasions are quite rare ____ I have the time to spend a day with my kids.A．who B．which C．why D．when16．I don't think he is the suitable person，for he____experience，____is essential for the job. A．lacks；which B．lacking；as C．lacks of；which D．lacked；that17．Even Amundsen was moved by Scott's death saying "Captain Scott left a record, for honesty, sincerity, for bravery, for everything _______makes a man".A．that B．which C．who D．不填18．John invited about 40 people to his wedding, most of _______are family members. A．who B．which C．whom D．what19．The anti-epidemic fight is like a time-limited race _______ all medical care personnel make every effort to people's lives.A．that B．when C．which D．where20．You might be trapped in an elevator emergency, in _____ case you should stay calm and call for help.A．that B．which C．whose D．its21．This is the last factory ________ he used to work at, many workers of _______ still have a good relationship with him.A．/; it B．which; whom C．/; which D．which; that 22．The students ________ parents work in the USA speak English very well.A．whose B．theirC．whom D．who23．A good advertisement often uses words ________people attach positive meanings.A．that B．which C．with which D．to which24．I'm glad to introduce Mr.Smith to you,without______my experiment would have ended in failure.A．whom help me B．his help C．whose help D．who help 25．Allen is good at seizing every opportunity ____ he thinks he can show his best self to others. A．when B．that C．where D．which【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【解析】【分析】【详解】考查定语从句。
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高考英语定语从句知识点全集汇编含答案(4)一、选择题1．—Where was the experiment carried out?—It was in the lab built in the 30s_______Mr. Smith worked as an assistant professorA．that B．which C．where D．when2．Newton is shown as a gifted scientist with every human weakness stood at the point in history magic ended and science began.A．who; where B．which; where C．who; when D．which; that3．I’ve come to the point____I can’t stand her arguing any longer.A．why B．which C．that D．where4．Though it is 30 years_______we last met, I still remember the scene_______we got separated on a rainy day.A．before; where B．before; which C．since; when D．since; where 5．The president of Harvard pioneered the elective system______ students were able to choose their own courses of study.A．on which B．about which C．to which D．by which 6．Claims, if any, must be made within 30 days, _____ no claims will be accepted.A．without which B．for which C．during which D．after which7．5G is an exciting mobile technology, ________ will give a massive boost to smart cities and vehicles.A．where B．when C．that D．which 8．Liberty, equality, and fraternity are the ideals _______ human beings have been fighting. A．to which B．against which C．with which D．for which9．She's always suggesting ways ______ I can improve my cooking. I know she means well but this really annoys me.A．that B．which C．how D．when10．I am looking forward to the day ________ my daughter can read this book and know my feelings for her.A．as B．why C．when D．where11．You were very impolite to him, for _____ you should make an apology to him, I think. A．this B．which C．what D．that12．The reason ________ he didn’t come to school on time is ________ he had to take care of his sick brother at home.A．That; because B．that; that C．why; because D．why; that 13．The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.A．which B．when C．as D．where14．_______ is known to all, grammar is not a set of dead rules.A．That B．Which C．As D．It15．I shall never forget those years _______ I spent on the farm with the farmers, _______ has a great effect on my life.A．when; who B．that; which C．which; that D．when; which 16．Was it in the beautiful park ___was located at the foot of the mountain ___we first met our foreign teacher?A．which; where B．which; that C．which; which D．that; where 17．The course normally attracts 60 students per year, ______up to half are from Europe.A．in which B．for whom C．with which D．of whom 18．This restaurant has an inviting, homelike atmosphere ______ many others are short of. A．where B．when C．which D．what19．During the holiday I bought a CD player, _____ was rather reasonable.A．its price B．of which priceC．the prices of which D．whose price20．We have entered into an age _______ dreams have the best chance of coming true. A．which B．what C．when D．that 21．Eventually, the butterfly manages to reach the place____________ it will spend the winter. A．which B．when C．that D．where22．The tower, _________ was destroyed in the terrible storm, has been repaired.A．the roof B．which roof C．its roof D．the roof of which 23．Life is like a long race _______ we compete with each other to go beyond ourselves. A．where B．which C．that D．what24．A good advertisement often uses words ________people attach positive meanings.A．that B．which C．with which D．to which 25．Occasions are quite rare ____ I have the time to spend a day with my kids.A．who B．which C．why D．when【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【解析】【分析】【详解】考查定语从句。
句意：——实验是在哪里进行的？——是在Smith先生担任助理教授的30年代建造的实验室里。
此处为定语从句修饰先行词lab，且先行词在从句中作地点状语，应用关系副词where引导。
故选C。
2．A解析：A【解析】【详解】考查定语从句。
句意：牛顿被证明是一位天才科学家，有着人类的种种弱点，他站在了历史上魔术结束、科学开始的时刻。
分析句子可知，两个设空处都引导定语从句；第一空处关系词代替先行词Newton在从句中充当主语，应用关系代词who，第二空处关系词代替先行词point在从句中充当地点状语，应用关系副词where，故选A项。
3．D解析：D【解析】【分析】【详解】考查定语从句关系词。
句意：我已经到了不能再忍受她争论的地步了。
分析句子结构可知，此句为定语从句，先行词为“point”，表示“某种程度，某种状况”，是指一个象征意义上的地点，可以推断，此处应用引导词where指代先行词，表示“在这种程度之下”，在从句中充当状语。
故选D项。
【点睛】where指代relationship、 situation和point，分别表示“在……关系中”，“在……情况下”，“达到……程度”，这些词虽然不是表示地点的名词，但在从句中表达的是“某个点或状态”的含义。
我们可以把这类名词解释成“含有抽象地点意义的名词”，此类词也能用关系副词 where来进行引导。
4．D解析：D【解析】【分析】【详解】考查固定句型和定语从句。
句意：虽然距最后一次见面已经过去了20年，但我仍然记得我们在下雪的那天分别的场景。
第一空，It is/has been+一段时间+since从句，意为“自从……有多久了”，排除A、B；第二空，后文定语从句“we got separated...”不缺少成分，定语从句中已经有时间状语，不能再用when，排除C，且上文scene表示“现场，场面，场景”，在此指的是地点，应该用where引导定语从句，故选D。
5．D解析：D【解析】【分析】【详解】考查定语从句。
句意：哈佛大学的校长率先推出了选修课，学生可以选择自己的课程。
此处为“介词+关系代词”结构定语从句修饰先行词system，且根据此处表示“学生可以借助系统选择自己的课程”，表示“借助”应用介词by，做介词的宾语且指“系统”应用关系代词which。