高考英语名词性从句知识点单元汇编含答案
高考英语新名词性从句知识点单元汇编及答案(2)
高考英语新名词性从句知识点单元汇编及答案(2)一、选择题1．The whole nation responds to the call _______ everybody shall wear masks wherever they go. A．which B．that C．when D．because2．It is by no means clear the local government will do with the buildings of poor quality. A．what B．how C．whether D．which3．It is exactly ______ we behave ______has changed the world.A．which; that B．how; that C．how; what D．what; 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．wherever6．_________ 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 7．His mother did _______ she could ______ the boy.A．what help B．that help C．what to help D．that to help8．All of us applauded the proposal _____ every cent should be used where it is needed most. A．that B．what C．which D．whether 9．Students show great interest in ________ Professor William presents to them in his class. A．whichever B．wherever C．whatever D．however 10．— Would you please tell us the prospect of fighting against COVID-19?—We are sure to win the battle, but ______ it’ll be over soon I’m not sure at the moment. A．whether B．that C．if D．when11．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．that12．______ they have won the game made us excited.A．/B．That C．What 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．which14．The weat her is fine. I’m sure ________ we can go camping this afternoon.A．why B．what C．that D．if15．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．if16．The result of his experiment led to the conclusion______ ice will decrease when it melts. A．/B．what C．which D．that17．Once _______ in the forest, we should remain ________ we are and wait for help. A．losing; there B．losing; where C．lost; there D．lost; where 18．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; that19．You have to know _____________ you’re going if you a re to plan the best way of getting there.A．what B．thatC．where D．who20．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．what 21．Modern science has given evidence _________ smoking can lead to many diseases. A．what B．whichC．that D．where22．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．when 23．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.A．whether B．whyC．when D．how24．A saying goes_____ all work and no play___________ Jack a dull boy.A．that; makes B．which; makes C．that; make D．which; make 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．B解析：B【解析】【分析】【详解】考查同位语从句。
高中英语高考名词性从句高频考点易混点整理(含练习和答案)
高考英语名词性从句高频考点易混点高频考点一：考查that与what的区别在引导名词性从句时，从属连词that一般要注意三个"不"：1.不省略。
当从属连词that引导的主语从句位于句首时，that不省略；that引导同位语从句时，一般不省略。
2.不作成分。
that 在名词性从句中不作任何句子成分。
3.无实义。
that 在名词性从句中没有实义。
在引导名词性从句时， what一般要注意一个"不",一个"有词义",一个"作成分"：1.不省略。
what 引导名词性从句时，不省略。
2.有词义。
what 引导名词性从句时，有词义。
一般表示"……的东西/事情等"，这一用法与that 的用法不一样。
3.作成分。
what 在引导名词性从句时，在从句中充当成分。
这一用法与that 的用法不一样。
例如：Nobody believed his reason for being absent from the class that he had to meet his uncle at the airport.该句中，that引导同位语从句，在句中不作任何成分，不能省略且无词义。
What the teacher said had a good effect on the children.what引导主语从句，在句中有词义。
高频考点二：it放在句首，真正的主语是that从句常用句型如下：① It+系动词+n.+ that从句;② It+系动词+adj.+ that从句;③ It+be+动词的过去分词形式（如said, reported, suggested等）+that从句；④ It+特殊动词（appear, seem, happen, matter, turn out, work out等）+that从句。
高频考点三：考查whether与if的区别whether与if在作"是否"讲时,是可以互换的。
高考英语新名词性从句知识点难题汇编及答案
13．By reading the story, you may understand ______ to be successful.
A．it takes whatB．you take whatC．what takes youD．what it takes
A．whoB．whichC．whatD．whether
24．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.
A．whetherB．why
C．whenD．how
A．That; becauseB．that; thatC．why; becauseD．why; that
19．Sometimes,_______we make choices has a lot to do with what we feel.
A．whatB．howC．whichD．why
20．You have to know _____________ you’re going if you are to plan the best way of getting there.
【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：
He doesn’t know what she likes.他不知道她喜欢什么。
—Yes, but it hasn’t been made clearit’s to be opened to traffic.
高考英语一轮复习——名词性从句(附答案)
高考英语一轮复习——名词性从句（附答案）I. 考点分析名词性从句包括：主语从句、宾语从句、表语从句、同位语从句，多由连词that，wh- 疑问词或由what，whatever等关系代词引导，其中同位语从句在高考考试中最常见。
1. 主语从句1) 主语从句在句子中充当主语，句子的谓语动词用第三人称单数。
如：Why he refused to work with you is still mystery.Whoever comes is welcome.2) 主语从句前的that不能省略，仅起连接作用，有时为了保持句子平衡，that从句后置，而由it作形式主语。
如：That he became a lawyer may have been due to his mother’s influence.It is not true that he has moved to New York.2. 宾语从句在句子中充当宾语，如：I don’t know where the sound came from.Don’t be satisfied with what you have achieved.3．当从句放在系动词be, look, remain, seem等后即构成表语从句。
The trouble is that I have lost his address.It seemed that the night would never end.4. 1) 同位语从句是对与之同位的名词中心词作进一步解释，能接名词性从句的常见名词有: idea, fact, news, belief, hope, evidence, opinion, problem, truth, answer, proposal, theory, decision, discovery, problem, thought, understanding 等。
高考英语新名词性从句知识点全集汇编含答案
高考英语新名词性从句知识点全集汇编含答案一、选择题1．—The hillside village remains primitive and unspoiled.—That explains ______ people desire to explore such a remote place.A．how B．where C．when D．why2．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．whether3．It sounds _______ the situation is unlikely to improve.A．as if B．how C．as D．so that4．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．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what6．As days go on，I think that Beijing will become ________ the whole world pay close attention to.A．where B．what C．which D．that7．—I don’t know _______ you got to know my telephone number.—Through a friend of mine.A．how was it B．how was it that C．it was how that D．how it was that 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．All of us applauded the proposal _____ every cent should be used where it is needed most. A．that B．what C．which D．whether10．__________ 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．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．Education is ______________ survives when knowledge taught in class has been forgotten. A．how B．who C．what D．which14．_____we understand things has a lot to do with what we feel.A．Where B．How C．Why D．When15．—Is it true that Mike refused an offer from Yale University yesterday?—Yea h, but I have no idea _____________ he did it; that’s one of his favorite universities. A．when B．whyC．that D．how16．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．I want to tell you is the deep love and respect I have for my parents.A．That B．Which C．Whether D．What20．I am interested in_________ you have improved your spoken English in such a short time. A．how B．which C．when D．if 21．Sometimes,_______we make choices has a lot to do with what we feel.A．what B．how C．which D．why22．You have to know _____________ you’re going if you are to plan the best way of getting there.A．what B．thatC．where D．who23．Police have found ________ appears to be the lost ancient statue.A．which B．where C．how D．what24．—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．when25．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．which【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】【分析】【详解】考查名词性从句。
高考英语新名词性从句知识点全集汇编附答案(3)
高考英语新名词性从句知识点全集汇编附答案(3)一、选择题1．There is a general consensus among teachers _____ children should have a broad understanding of the world.A．where B．whether C．that D．how2．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．whether3．Then he told me _______ he was doing was very important.A．that B．that how C．what that D．why what4．I want to know _______.A．what matter it is B．what’s the matterC．what the matter is D．the matter is what5．Much to the couple's comfort，their income is now double ________ it was five years ago. A．that B．if C．which D．what6．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．what7．Filled with anger, a person tends to say ______ comes to his mind.A．whatever B．whichever C．whenever D．whoever8．All of us applauded the proposal _____ every cent should be used where it is needed most. A．that B．what C．which D．whether9．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．what10．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．that11．—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．how12．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．______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．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．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．if18．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．whether19．In my view, ______ impresses me about her writing is the passion she shows.A．who B．which C．what D．whether 20．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.A．whether B．whyC．when D．how21．With wonderful views of mountains and beaches,Lovers Point Park is________many people get married.A．where B．what C．which D．how 22．(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．what23．_____we understand things has a lot to do with what we feel.A．Where B．How C．Why D．When24．Alice arrived at ________ she thought was a wonderland.A．which B．that C．what D．whom25．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【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】考查名词性从句。
高考英语名词性从句知识点难题汇编附答案(1)
高考英语名词性从句知识点难题汇编附答案(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．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 3．Andrew is such a rebellious person that he often offends against _______ others consider accepted rules.A．that B．what C．which D．whether4．It is _______ he said _______ is very important to me.A．what; that B．that; that C．all that; what D．which; that 5．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．Filled with anger, a person tends to say ______ comes to his mind.A．whatever B．whichever C．whenever D．whoever9．The other day, my brother drove his car down the street at _____ was a dangerous speed. A．as B．what C．which D．that10．__________ 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 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．—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．As John Lennon once said, life is ________ happens to you while you are busy making other plans.A．Which B．thatC．what D．where16．The whole nation responds to the call _______ everybody shall wear masks wherever they go. A．which B．that C．when D．because17．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．who18．I am interested in_________ you have improved your spoken English in such a short time. A．how B．which C．when D．if19．The result of his experiment led to the conclusion______ ice will decrease when it melts. A．/B．what C．which D．that20．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．In my view, ______ impresses me about her writing is the passion she shows.A．who B．which C．what D．whether23．The exhibition tells us _____we should do something to stop air pollution.A．where B．whyC．what D．which24．_____we understand things has a lot to do with what we feel.A．Where B．How C．Why D．When25．— Would you please tell us the prospect of fighting against COVID-19?—We are sure to win the battle, but ______ it’ll be over soon I’m not sure at the moment. A．whether B．that C．if D．when【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。
高考英语名词性从句知识点难题汇编含答案解析(5)
10．All of us were so excited at the news ____we’ll go abroad for holidays ___we jumped with joy.
A．that; thatB．what; and thenC．what; thatD．which; so
例如：
I don’t knowwhathe likes to eat.
Ask himwhichhe likes best, the green apple or the red apple.
9．A
解析：A
【解析】
【分析】
【详解】
考查名词性从句中的同位语从句。句意：我们所有人都同意这个提议把每一分钱都用在最需要的地方。这里的proposal提议是一个抽象名词，后面需要进行阐述说明这个提议的具体内容。这里的名词和后面的从句表达的同一个意思，所以是同位语从句。而且这里的从句成分已经完整了，所以选择that起一个引导作用，并且不可以省略。故答案选A。
A．ThatB．IfC．WhetherD．What
19．was needed at that time, she told me, was some good luck.
A．ThatB．AsC．ItD．What
20．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.
8．Filled with anger, a person tends to say ______ comes to his mind.
高考英语新名词性从句知识点全集汇编及答案(4)
高考英语新名词性从句知识点全集汇编及答案(4)一、选择题1．My grandmother helped me believe that I could accomplish ____________ I put my mind to. A．whenever B．whatever C．wherever D．whichever2．I know nothing about the young lady _______ she is from Beijing.A．except B．that C．except that D．except for 3．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．what4．—I don’t know _______ you got to know my tel ephone number.—Through a friend of mine.A．how was it B．how was it that C．it was how that D．how it was that 5．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．what6．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．however7．__________ is no possibility __________ Bob can win the first prize in the match . A．There ; whether B．There ; that C．It ; whether D．It ; that8．— Would you please tell us the prospect of fighting against COVID-19?—We are sure to win the battle, but ______ it’ll be over soon I’m not sure at the moment. A．whether B．that C．if D．when9．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 10．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．where11．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．which12．It is exactly ______ we behave ______has changed the world.A．which; that B．how; that C．how; what D．what; that 13．—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．how14．—Could you show me_____?—Sure.A．where is the library B．where the library is C．how can I go to the library 15．—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．whether16．It was__ he said__ disappointed me.A．that；what B．what；that C．what；what D．that；that 17．was needed at that time, she told me, was some good luck.A．That B．As C．It D．What18．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．who19．I am interested in_________ you have improved your spoken English in such a short time. A．how B．which C．when D．if20．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 21．Sometimes,_______we make choices has a lot to do with what we feel.A．what B．how C．which D．why22．In my view, ______ impresses me about her writing is the passion she shows.A．who B．which C．what D．whether23．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．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.A．whether B．whyC．when D．how25．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．B解析：B【解析】【分析】【详解】考查宾语从句。
高考英语专题名词性从句知识点难题汇编含答案解析
12．It is by no means clearthe local government will do with the buildings of poor quality.
A．whatB．howC．whetherD．which
13．Their ship was blown off course by strong wind, and they arrived in ________is known as Greenland by chance.
A．whoB．whichC．whatD．whether
21．With wonderful views of mountains and beaches,Lovers Point Park is________many people get married.
A．whereB．whatC．whichD．how
A．howB．whereC．whenD．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】
【分析】
【详解】
考查连接代词whatever的用法。句意：只要你知道自己真正想要的是什么，你就可以选择任何一种你喜欢的生活方式。A. however无论如何，不管怎样；B. whatever任何事物，无论什么；C. whenever任何时候，无论何时；D. which哪一个。分析句子结构可知，本句为宾语从句，该空应使用代词，表示某种生活方式（what/whatever kind of life），而不能使用副词（如however/whenever），同时结合句意，其有“任何、任一”之意，可排除which，故选B。
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高考英语名词性从句知识点单元汇编含答案一、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．It is exactly ______ we behave ______has changed the world.A．which; that B．how; that C．how; what D．what; that3．— 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．when4．I want to know _______.A．what matter it is B．what’s the matterC．what the matter is D．the matter is what5．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．when6．_________ 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 7．His mother did _______ she could ______ the boy.A．what help B．that help C．what to help D．that to help 8．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．whether9．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．what10．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 was11．Students show great interest in ________ Professor William presents to them in his class. A．whichever B．wherever C．whatever D．however12．It is by no means clear the local government will do with the buildings of poor quality. A．what B．how C．whether D．which 13．Education is ______________ survives when knowledge taught in class has been forgotten. A．how B．who C．what 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．whichever16．The result of his experiment led to the conclusion______ ice will decrease when it melts. A．/B．what C．which D．that17．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．what18．The beauty of a tournament like the World Cup is ________ it can be wildly unpredictable. A．whether B．how C．that D．why19．You have to know _____________ you’re g oing if you are to plan the best way of getting there.A．what B．thatC．where D．who20．I’m afraid he’s more of a talker than a doer, which is ________he never finishes anything. A．that B．whenC．where D．why21．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．when 22．Exactly______ the potato was introduced into Europe is uncertain, but it was probably around 1565.A．whether B．whyC．when D．how23．(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．A saying goes_____ all work and no play___________ Jack a dull boy.A．that; makes B．which; makes C．that; make D．which; make 25．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．where【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。
句意：——迈克做出了放弃耶鲁大学的邀约是真的吗？——是的，但是我不知道他为什么这么做，那是他最喜欢的大学之一。
A项表“时间”，D项表“方式”，均不合题意。
have no idea =“not” know，后面的从句应该表示“疑问”，排除表“确定事实”的C项。
故本题选择B项。
why表示“原因”，引导同位语从句解释说明idea。
Mike放弃了最心仪的耶鲁大学，令人不解其故。
故选B。
2．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。
3．B解析：B【解析】【分析】【详解】考查宾语从句。
句意：——这些设计者们兴高采烈的。
怎么了？——他们刚刚就奖金怎么分配达成了一致。
分析句子可知，空白处与其后句子一起作介词on的宾语，属于宾语从句，空白处需要引导词，其中句子成分完整，结合句意考虑用连接副词how作方式状语，表示“如何”。
故选B项。
【点睛】宾语从句连接词的判断是一个重要考点，一般分为三种类型：1.由that引导，that在句中无实意，只起连接作用，其后接一般的陈述句；2.由whether，if引导，在句中表示“是否”，其后句子可以还原成一般疑问句；3.由wh-系列的连接副词和连接代词引导，这些词在句中都要担任一定的成分，连接代词担任主、宾、表等成分，连接副词则担任状语。