高考英语专题名词性从句知识点易错题汇编及答案解析
高考英语专题名词性从句知识点易错题汇编含答案
高考英语专题名词性从句知识点易错题汇编含答案一、选择题1．As long as you know what you really want, you can choose kind of life you like. A．however B．whatever C．whenever D．which2．We can judge one’s character by ______ he treats whoever can do nothing for him.A．that B．what C．how D．when3．Mr, Smith, manager of the department, decided to assign the important task to _________had a strong sense of responsibility.A．whatever B．whichever C．whoever D．whomever4．It is by no means clear the local government will do with the buildings of poor quality. A．what B．how C．whether D．which5．Thor is no longer _______ he was two years ago.A．that B．who C．what D．which6．Then he told me _______ he was doing was very important.A．that B．that how C．what that D．why what 7．When the news came ___ the war broke out , he decided to serve in the army.A．since B．which C．that D．because8．The Oscars have been around for so long that they serve as an indicator of ________ the Hollywood community values now and in the past.A．that B．where C．how D．what9．Filled with anger, a person tends to say ______ comes to his mind.A．whatever B．whichever C．whenever D．whoever10．The setting of the film Zootopia may be limited in the city full of kinds of animals, but__________ it exposes about human nature is quite broad.A．which B．that C．what D．whether11．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; so 12．The only time my father really stops thinking about work is_____our whole family are on vacation.A．that B．when C．where D．which 13．Considerable evidence has been found over the years ________lack of exercise is connected with increased risk of cancer.A．whether B．thatC．why D．how14．Word came _______ Chinese climbers made it to the top of Mount Qomolangma once again on May, 27th. I was always wondering _______ they managed to make such a great achievement . A．which; why B．that; why C．that; how D．when; how 15．______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;there16．There is a general consensus among teachers _____ children should have a broad understanding of the world.A．where B．whether C．that D．how17．As John Lennon once said, life is ________ happens to you while you are busy making other plans.A．Which B．thatC．what D．where18．____________he’ll be able to come is not yet known.A．That B．If C．Whether D．What 19．Everyone faces challenges in life. It’s a matter of __________ you learn to overcome them and use them to your advantage.A．that B．what C．which D．how20．Police have found ________ appears to be the lost ancient statue.A．which B．where C．how D．what 21．Modern science has given evidence _________ smoking can lead to many diseases. A．what B．whichC．that D．where22．I’m afraid he’s more of a talker than a doer, which is ________he never finishes anything. A．that B．whenC．where D．why23．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.A．whether B．whyC．when D．how24．(2016·天津)The manager put forward a suggestion __________ we should have an assistant. There is too much work to do.A．whether B．thatC．which D．what25．My grandmother helped me believe that I could accomplish ____________ I put my mind to. A．whenever B．whatever C．wherever D．whichever【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】考查连接代词whatever的用法。
高中英语高考名词性从句专项复习(知识点+易错点+练习题)
高考英语名词性从句知识点一、that 从句1、主语从句（1）that 从句作主语时，常用it 作形式主语，常见的句型有：It+be+形容词（obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.）+ that从句It+be+名词词组（no wonder, an honor, a good thing, a pity, no surprise, etc.）+ that 从句It+be+过去分词（said, reported, thought, expected, decided, announced, arranged, etc.）+ that 从句（2）that可以省略，但 that 从句位于句首时，that不能省略。
2、宾语从句（1）常见的可以接 that 从句作宾语的动词有see, say, know, imagine, discover, believe, tell, show, think, consider, be sure, be afraid等。
在可以接复合宾语的动词之后，如 think, make, consider等，可以用 it 作形式宾语。
（2）That 从句一般不能充当介词宾语，偶尔可作except, in 的宾语。
3、表语从句（that不可省略）4、同位语从句连词that引导同位语从句时，应在某些抽象名词之后，如：fact, hope, desire, thought, suggestion, idea, news, problem, possibility 等，对前面的名词起补充说明的作用，that在从句中不担当任何成分，不能省略。
二、whether/if从句1、在表语从句和同位语从句中，只能用 whether 不能用 if；当主语从句放于句首时，只能用 whether 不用 if；当 it 作形式主语，主语从句放在句末时用 whether或if均可；discuss 后引导宾语从句时，必须用whether。
高考英语最新名词性从句知识点易错题汇编含解析
高考英语最新名词性从句知识点易错题汇编含解析一、选择题1．As long as you know what you really want, you can choose kind of life you like. A．however B．whatever C．whenever D．which2．We can judge one’s character by ______ he treats whoever can do nothing for him.A．that B．what C．how D．when3．It is _______ he said _______ is very important to me.A．what; that B．that; that C．all that; what D．which; that4．I want to know _______.A．what matter it is B．what’s the matterC．what the matter is D．the matter is what5．Anyone who wants to can call any timepiece a clock, but technically speaking, only_________ ones ring out the time actually deserve the name.A．whatever B．whenever C．whichever D．wherever 6．They didn't discover until they happened to enter the back room _________ someone had stolen the priceless painting.A．that B．what C．which D．when7．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what8．The other day, my brother drove his car down the street at _____ was a dangerous speed. A．as B．what C．which D．that9．The setting of the film Zootopia may be limited in the city full of kinds of animals, but__________ it exposes about human nature is quite broad.A．which B．that C．what D．whether10．All of us were so excited at the ne ws ____we’ll go abroad for holidays ___we jumped with joy.A．that; that B．what; and then C．what; that D．which; so 11．Fanny asked ________ made that odd-looking little cat so popular.A．what was it that B．wat was thatC．what it was that D．what that was12．The only time my father really stops thinking about work is_____our whole family are on vacation.A．that B．when C．where D．which13．Their ship was blown off course by strong wind, and they arrived in ________is known as Greenland by chance.A．where B．when C．what D．which 14．—Could you show me_____?—Sure.A．where is the library B．where the library is C．how can I go to the library 15．The student completed this experiment to make come true ______ Professor Joseph had said. A．that B．what C．when D．where16．______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;there17．—How do you find the 5G cell phones?—Oh,quite good.A new function has been developed on this new model_____it has faster data transmission and lower delayA．that B．which C．what D．whether18．It was__ he said__ disappointed me.A．that；what B．what；that C．what；what D．that；that 19．Everyone faces challenges in life. It’s a matter of __________ you learn to overcome them and use them to your advantage.A．that B．what C．which D．how20．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 21．—It’s reported that the new underground line has been completed.—Yes, but it hasn’t been made clear it’s to be opened to traffic.A．that B．who C．what D．when22．With wonderful views of mountains and beaches,Lovers Point Park is________many people get married.A．where B．what C．which D．how23．The exhibition tells us _____we should do something to stop air pollution.A．where B．whyC．what D．which24．(2016·天津)The manager put forward a suggestion __________ we should have an assistant. There is too much work to do.A．whether B．thatC．which D．what25．—The hillside village remains primitive and unspoiled.—That explains ______ people desire to explore such a remote place.A．how B．where C．when D．why【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】【详解】考查连接代词whatever的用法。
高考英语名词性从句知识点易错题汇编及答案解析(4)
21．Once _______ in the forest, we should remain ________ we are and wait for help.
A．losing; thereB．losing; whereC．lost; thereD．lost; where
A．ThatB．WhatC．In spite of whatD．Though what
7．Much to the couple's comfort，their income is now double ________ it was five years ago.
A．thatB．ifC．whichD．what
22．Modern science has given evidence _________ smoking can lead to many diseases.
A．whatB．which
C．thatD．where
23．In my view, ______ impresses me about her writing is the passion she shows.
3．______ they have won the game made us excited.
A．/B．ThatC．WhatD．Which
4．It is by no means clearthe local government will do with the buildings of poor quality.
【点睛】
what和that均可引导名词性从句中的主语表语、宾语从句，具体区别为：what可在从句中用作主语、宾语或表语，意为“什么”或“所…的”，不能省略；而that仅起连接作用，本身没有实际意义，在从句中也不充当任何句子成分(引导宾语从句时通常可以省略)。如：
高考英语新名词性从句知识点易错题汇编含答案解析(4)
高考英语新名词性从句知识点易错题汇编含答案解析(4)一、选择题1．Education is ______________ survives when knowledge taught in class has been forgotten. A．how B．who C．what D．which2．Steve Jobs was fired by the person he had hired and trusted the fact he was the one who co-established the company.A．despite… which B．regardless… thatC．in spite of… that D．against… in which3．Then he told me _______ he was doing was very important.A．that B．that how C．what that D．why what4．They didn't discover until they happened to enter the back room _________ someone had stolen the priceless painting.A．that B．what C．which D．when5．When the news came ___ the war broke out , he decided to serve in the army.A．since B．which C．that D．because6．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what7．It is widely believed that _______ has necessary good qualities is more____ to achieve success in their career.A．whoever; possible B．who; likely C．who; possible D．whoever; likely 8．The Oscars have been around for so long that they serve as an indicator of ________ the Hollywood community values now and in the past.A．that B．where C．how D．what9．The other day, my brother drove his car down the street at _____ was a dangerous speed. A．as B．what C．which D．that10．The spokesman noted _______ some individuals apparently lack is not the means to get the correct information, but the courage to admit the truth.A．whether B．that C．which D．what11．Fanny asked ________ made that odd-looking little cat so popular.A．what was it that B．wat was thatC．what it was that D．what that was12．_______football is such a simple game to play is perhaps the basis of its popularity. A．What B．Whether C．That D．Which 13．—Friends are very important for teenagers.—Yes. A friend will be listened to___________a parent or a teacher might not.A．where B．what C．why D．which 14．—Could you show me_____?—Sure.A．where is the library B．where the library is C．how can I go to the library 15．My grandmother helped me believe that I could accomplish ____________ I put my mind to. A．whenever B．whatever C．wherever D．whichever16．Their ship was blown off course by strong wind, and they arrived in ________is known as Greenland by chance.A．where B．when C．what D．which17．____________he’ll be able to come is not yet known.A．That B．If C．Whether D．What18．There is a common belief among the students in our school _____ they should make great efforts to learn and reach the peak of their academic performances.A．which B．that C．whether D．if19．I am interested in_________ you have improved your spoken English in such a short time. A．how B．which C．when D．if 20．Everyone faces challenges in life. It’s a matter of __________ you learn to overcome them and use them to your advantage.A．that B．what C．which D．how21．Police have found ________ appears to be the lost ancient statue.A．which B．where C．how D．what22．I think my father would like to know_______I’ve been up to so far, so I decide to send him a quick note.A．which B．what C．why D．when23．He explained ______ for his father's birthday party.A．why was he late B．why is he lateC．why he is late D．why he was late24．_____we understand things has a lot to do with what we feel.A．Where B．How C．Why D．When25．By reading the story, you may understand ______ to be successful.A．it takes what B．you take what C．what takes you D．what it takes 【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】考查表语从句。
高考英语专题名词性从句知识点易错题汇编及答案
高考英语专题名词性从句知识点易错题汇编及答案一、选择题1．Considerable evidence has been found over the years ________lack of exercise is connected with increased risk of cancer.A．whether B．thatC．why D．how2．_______football is such a simple game to play is perhaps the basis of its popularity. A．What B．Whether C．That D．Which3．Mr, Smith, manager of the department, decided to assign the important task to _________had a strong sense of responsibility.A．whatever B．whichever C．whoever D．whomever 4．Andrew is such a rebellious person that he often offends against _______ others consider accepted rules.A．that B．what C．which D．whether5．It is _______ he said _______ is very important to me.A．what; that B．that; that C．all that; what D．which; that 6．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what7．His mother did _______ she could ______ the boy.A．what help B．that help C．what to help D．that to help 8．Filled with anger, a person tends to say ______ comes to his mind.A．whatever B．whichever C．whenever D．whoever9．If you are addicted to your mobile phone, that’s ______ you should lay it down and be involved in meaningful activities.A．when B．why C．where D．how 10．Students show great interest in ________ Professor William presents to them in his class. A．whichever B．wherever C．whatever D．however 11．Social media paints this rosy picture that everyone else 's lives are perfect,but things are seldom_______they seem.A．which B．what C．how D．where12．We must be in a place of peace and faith, so internal conflict and disbelief do not hold back ________ it is possible for us to achieve.A．how B．what C．why D．where13．Their ship was blown off course by strong wind, and they arrived in ________is known as Greenland by chance.A．where B．when C．what D．which14．A saying goes_____ all work and no play___________ Jack a dull boy.A．that; makes B．which; makes C．that; make D．which; make 15．As long as you know what you really want, you can choose kind of life you like. A．however B．whatever C．whenever D．which 16．Many experts stick to the view ______ teacher development is the key to the educationA．which B．what C．that D．where 17．—What’s your understanding of success,Robert?—In my view,success is________preparation and chances meet.A．how B．why C．what D．where18．____________he’ll be able to come is not yet known.A．That B．If C．Whether D．What 19．Figuring out in advance _____ we’re going to cope with major problems during the virus outbreak helps us work efficiently.A．why B．when C．how D．whether20．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．what21．In my view, ______ impresses me about her writing is the passion she shows.A．who B．which C．what D．whether 22．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.A．whether B．whyC．when D．how23．With wonderful views of mountains and beaches,Lovers Point Park is________many people get married.A．where B．what C．which D．how24．_____we understand things has a lot to do with what we feel.A．Where B．How C．Why D．When25．—Is it true that Mike refused an offer from Yale University yesterday?—Yeah, but I have no idea _____________ he did it; that’s one of his favor ite universities. A．when B．whyC．that D．how【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】考查同位语从句。
高考英语新名词性从句知识点易错题汇编含答案解析
高考英语新名词性从句知识点易错题汇编含答案解析一、选择题1．Craig is always sticking his nose in ______ it’s not wanted. He is always trying to find out my personal information.A．what B．which C．where D．that2．We must be in a place of peace and faith, so internal conflict and disbelief do not hold back ________ it is possible for us to achieve.A．how B．what C．why D．where3．We can judge one’s character by ______ he treats whoever can do nothing for him.A．that B．what C．how D．when4．When we start gazing into the night sky with a telescope, the realization will suddenly come over us _______ we and our world are part of this giant system.A．as B．where C．that D．whether 5．Steve Jobs was fired by the person he had hired and trusted the fact he was the one who co-established the company.A．despite… which B．regardless… thatC．in spite of… that D．against… in which6．Anyone who wants to can call any timepiece a clock, but technically speaking, only_________ ones ring out the time actually deserve the name.A．whatever B．whenever C．whichever D．wherever7．_________ has recently been done to provide more buses, a shortage of public vehicles remains a serious problem.A．That B．What C．In spite of what D．Though what 8．The Qingming Festival, now a national holiday, allows more people to pay their respects to dead relatives on would otherwise be a workday like Friday.A．where B．thatC．when D．what9．When the news came ___ the war broke out , he decided to serve in the army.A．since B．which C．that D．because 10．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what11．His mother did _______ she could ______ the boy.A．what help B．that help C．what to help D．that to help 12．The only time my father really stops thinking about work is_____our whole family are on vacation.A．that B．when C．where D．which13．The other day, my brother drove his car down the street at _____ was a dangerous speed. A．as B．what C．which D．that14．Word came _______ Chinese climbers made it to the top of Mount Qomolangma once again on May, 27th. I was always wondering _______ they managed to make such a great achievement . A．which; why B．that; why C．that; how D．when; how15．Education is ______________ survives when knowledge taught in class has been forgotten. A．how B．who C．what D．which16．—The hillside village remains primitive and unspoiled.—That explains ______ people desire to explore such a remote place.A．how B．where C．when D．why17．______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;there18．There is a general consensus among teachers _____ children should have a broad understanding of the world.A．where B．whether C．that D．how19．The whole nation responds to the call _______ everybody shall wear masks wherever they go. A．which B．that C．when D．because20．I want to tell you is the deep love and respect I have for my parents.A．That B．Which C．Whether D．What21．The beauty of a tournament like the World Cup is ________ it can be wildly unpredictable. A．whether B．how C．that D．why22．I think my father would like to know_______I’ve been up to so far, so I decide to send him a quick note.A．which B．what C．why D．when23．He explained ______ for his father's birthday party.A．why was he late B．why is he lateC．why he is late D．why he was late24．—Could you show me_____?—Sure.A．where is the library B．where the library is C．how can I go to the library 25．It is generally acknowledged that loving your life is _____ the key to happiness lies. A．what B．why C．where D．whether【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】考查宾语从句。
高考英语名词性从句知识点易错题汇编附答案解析(1)
高考英语名词性从句知识点易错题汇编附答案解析(1)一、选择题1．—Is it true that Mike refused an offer from Yale University yesterday?—Yeah, but I have no idea _____________ he did it; that’s one of his favorite universities. A．when B．whyC．that D．how2．_______football is such a simple game to play is perhaps the basis of its popularity. A．What B．Whether C．That D．Which3．______ they have won the game made us excited.A．/B．That C．What D．Which4．— The designers are over the moon.What's up?— They've reached an agreement on_________the bonuses are to be divided later.A．why B．how C．where D．when5．It is _______ he said _______ is very important to me.A．what; that B．that; that C．all that; what D．which; that6．I want to know _______.A．what matter it is B．what’s the matterC．what the matter is D．the matter is what7．They didn't discover until they happened to enter the back room _________ someone had stolen the priceless painting.A．that B．what C．which D．when8．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what9．His mother did _______ she could ______ the boy.A．what help B．that help C．what to help D．that to help 10．__________ is no possibility __________ Bob can win the first prize in the match . A．There ; whether B．There ; that C．It ; whether D．It ; that11．The spokesman noted _______ some individuals apparently lack is not the means to get the correct information, but the courage to admit the truth.A．whether B．that C．which D．what12．We can judge one’s character by ______ he treats whoever can do nothing for him.A．that B．what C．how D．when13．He sold his house for twice ________ he paid for it so he did well out of the deal.A．how B．what C．that D．which14．The weather is fine. I’m sure ________ we can go camping this afternoon.A．why B．what C．that D．if15．My grandmother helped me believe that I could accomplish ____________ I put my mind to. A．whenever B．whatever C．wherever D．whichever 16．Considerable evidence has been found over the years ________lack of exercise is connected with increased risk of cancer.A．whether B．thatC．why D．how17．As long as you know what you really want, you can choose kind of life you like. A．however B．whatever C．whenever D．which18．The student completed this experiment to make come true ______ Professor Joseph had said. A．that B．what C．when D．where19．It was__ he said__ disappointed me.A．that；what B．what；that C．what；what D．that；that 20．The whole nation responds to the call _______ everybody shall wear masks wherever they go. A．which B．that C．when D．because21．____________he’ll be able to come is not yet known.A．That B．If C．Whether D．What22．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．what 23．(2016·天津)The manager put forward a suggestion __________ we should have an assistant. There is too much work to do.A．whether B．thatC．which D．what24．Word came _______ Chinese climbers made it to the top of Mount Qomolangma once again on May, 27th. I was always wondering _______ they managed to make such a great achievement . A．which; why B．that; why C．that; how D．when; how 25．—Friends are very important for teenagers.—Yes. A friend will be listened to___________a parent or a teacher might not.A．where B．what C．why 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】考查同位语从句。
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高考英语专题名词性从句知识点易错题汇编及答案解析一、选择题1．Their ship was blown off course by strong wind, and they arrived in ________is known as Greenland by chance.A．where B．when C．what D．which2．We can judge one’s character by ______ he treats whoever can do nothing for him.A．that B．what C．how D．when3．______ they have won the game made us excited.A．/B．That C．What D．Which4．It is exactly ______ we behave ______has changed the world.A．which; that B．how; that C．how; what D．what; that 5．Andrew is such a rebellious person that he often offends against _______ others consider accepted rules.A．that B．what C．which D．whether 6．Anyone who wants to can call any timepiece a clock, but technically speaking, only_________ ones ring out the time actually deserve the name.A．whatever B．whenever C．whichever D．wherever 7．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what8．Anyone with common sense is able to make the proper decision and do ______ suits the occasion best.A．no matter what B．no matter how C．whatever D．however9．__________ is no possibility __________ Bob can win the first prize in the match . A．There ; whether B．There ; that C．It ; whether D．It ; that 10．Students show great interest in ________ Professor William presents to them in his class. A．whichever B．wherever C．whatever D．however 11．—Friends are very important for teenagers.—Yes. A friend will be listened to___________a parent or a teacher might not.A．where B．what C．why D．which12．We must be in a place of peace and faith, so internal conflict and disbelief do not hold back ________ it is possible for us to achieve.A．how B．what C．why D．where 13．—The hillside village remains primitive and unspoiled.—That explains ______ people desire to explore such a remote place.A．how B．where C．when D．why14．The weather is fine. I’m sure ________ we can go camping this afternoon.A．why B．what C．that D．if15．It was__ he said__ disappointed me.A．that；what B．what；that C．what；what D．that；that16．As John Lennon once said, life is ________ happens to you while you are busy making other plans.A．Which B．thatC．what D．where17．was needed at that time, she told me, was some good luck.A．That B．As C．It D．What18．There is a common belief among the students in our school _____ they should make great efforts to learn and reach the peak of their academic performances.A．which B．that C．whether D．if19．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．what D．who20．I am interested in_________ you have improved your spoken English in such a short time. A．how B．which C．when D．if21．The result of his experiment led to the conclusion______ ice will decrease when it melts. A．/B．what C．which D．that22．It is estimated that 12.79 million new urban jobs have been created this year, which almost doubles _____ it was last year.A．how B．which C．where D．what23．Police have found ________ appears to be the lost ancient statue.A．which B．where C．how D．what24．In my view, ______ impresses me about her writing is the passion she shows.A．who B．which C．what D．whether 25．Education is ______________ survives when knowledge taught in class has been forgotten. A．how B．who C．what 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】考查宾语从句。
句意：他们的船被强风吹离了航线，这使他们意外地到达了格陵兰岛。
分析句子结构可知in后为宾语从句，从句中缺少主语，表示“……的地方”，what引导宾语从句，从句可以做主语，表示“……的（地方，样子等）”。
故C项正确。
2．C解析：C【解析】【分析】考查宾语从句。
句意：我们可以通过一个人如何对待那些对他无能为力的人来判断他的性格。
介词by后面是宾语从句，此处指“如何”对待，所以由how引导。
故选C。
3．B解析：B【解析】【分析】【详解】考查名词性从句。
句意：他们赢得了比赛，这让我们非常激动。
分析句子结构可知，they have won the game这个句子充当整个句子的主语，即使用了主语从句，其中不缺成分，要用that来引导，这里that没有实意。
故选B项。
4．B解析：B【解析】【分析】【详解】考查强调句和名词性从句。
句意：正是我们如何行动改变了世界。
分析句子结构可知，去掉It is 和第二个空，剩下的“______ we behave has changed the world.”构成完整的句意，因此，第二个空考查强调句结构，填that；分析句子成分可知，“______ we behave”在句子“______ we behave has changed the world.”中做主语，因此是主语从句，结合语境可知应该译为：我们如何行动，因此填how。
故选B。
【点睛】引导名词性从句的连接词可以分为三类：单纯连词、连接代词、连接副词。
1.单纯连词：that、whether/if在从句中不充当任何成分，只起连接从句的功能。
that没有实际意义，而whether/if有“是否”的意义。
2.连接代词：what、which、who等在从句中既做特定的成分（如主语、宾语等），又有具体的含义，不能省略。
3.连接副词：when、how、where等在句中做状语，有具体含义，不可省略。
5．B解析：B【解析】【分析】【详解】考查连接词。
句意：Andrew是一个非常叛逆的人，他经常违反别人认为已被接受的规则。
分析句子结构可知本句为宾语从句，从句中consider后缺少宾语，且指代事物应用what引导。
故选B。
6．C解析：C【解析】【分析】考查名词性从句。
句意：任何人都可以把任何时钟叫做钟，但是技术上来说，只有那些报时的钟才配得上这个名字。
分析句子结构可知，空白处与其后的ones ring out the time一起作主语，需要一个连接词，其中考虑空白处作定语修饰主语ones，要用whichever表示“无论哪个”。
在意义上大致相当于 the person or the thing that。