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提问人：网友tq0fqeu 发布时间：2022-01-07
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根据短文回答 51～65 题。 Making the Leap Jumps play a big role in many styles of danci

根据短文回答 51～65 题。

Making the Leap

Jumps play a big role in many styles of dancing.Generally, what makes a jump impressive is its hang time,the amount of time a dancer spends in the air.

The quest for greater hang time is a battle against gravity, the constant

____________(51)pull of Earth,said Laws.To leave the ground at all.a dancer has to use leg muscles to create an upward push that is greater than Earth's downward pull.But the final____________ (52)of any jump depends on just one thing：the upward speed of the body just as the dancer leaves the ground.

Strengthening muscles so they can push harder is one obvious____________ (53)to achieve higher jumps and increase hang time.But ballet dancers also use a simple trick to gain the illusion of staying in the air longer without actually doing S0.In a huge sideways jump called a grand jeté(小跳),a____________(54)ballet dancer seems to float for an impossible length of time.Of course,a dancer can't really hang in the air.The laws of physics decree that during any jump,a dancer's center of gravity must follow a parabola(抛物线).A parabola is the same____________ (55)path a ball takes when you throw it into the air.So how do dancers make it look like they're hanging in the air？

A dancer____________ (56)the illusion of floating in the air by lifting her legs and arms as she approaches the peak of the jump.The____________ (57) of her body

responds by sinking a bit.If her timing is just right,she'll seem to float sideways,instead of rising and fallin9.The effect is not only beautiful；it____________ (58)makes the jump seem bigger by" stretching out" the peak.

Of course,what goes up must come down.During a typical grand jete,a dancer's center of gravity raises 2 feel____________(59)the ground。Pulled by gravity from such a height,the dancer's body falls very fast—roughly 3.4 meters per second—by the time it reaches the floor.

As it falls,the body carries with it momentum(动量).Momentum is the weight of the body multiplied by its____________ (60).The bigger the body is and the faster it falls,the greater its momentum.

The only way a dancer can stop dropping through the air is by stopping the body's momentum,which requires an____________ (61)force—the ground.Landing can____________ (62)injuries.The dancer can ease the landing by bending her knees and letting her arms fall。but she also gets help from an unexpected source：the floor.Wooden dance floors are designed to____________(63)like shock absorbers.They can recoil(回缩)as much as an inch under extreme pressure.That little bit of give(弹性)makes a big____________(64).Landing on a wooden floor, the dancer undergoes a slower change in momentum than she would hitting a rigid floor.The give in the floor allows the decrease in momentum to happen more____________ (65) with less force and less chance of injury.

第 51 题

A．side

B．upward

C．up

D．downward

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更多“根据短文回答 51～65 题。 Making the Leap Jumps play a big role in many styles of danci”相关的问题
第1题
根据短文回答 51～65 题。 Public and Private Schools in the United States Religious and

根据短文回答 51～65 题。

Public and Private Schools in the United States

Religious and private schools receive little or no support from public taxes in the United States。and,as a result,are usually somewhat expensive to_______(51)The largest group of religious schools in America_______(52)by the Roman Catholic Church.While religious schools tend to be_______(53) expensive than private schools,there are usually some fees.

When there is free education available to all children in the United States,why do people_______(54)money on private schools？ Americans offer_______(55) great variety of reasons for doing S0,including the desire of some parents to send their children to schools_______(56)classes tend to be smaller,or where religious instruction is included as part of to he educational program,or because,_______(57)their opinion。The public schools in their area are not_______(58) high enough quality to meet their needs.Private schools in the United States_______(59) widely in size.Quality, and in the kind of program that are offered to meet_______(60) of certain students.

The degree_______(61)American parents are active in their children's schools is often_______(62)to people of other countries.Most schools have organizations _______(63)of both parents and teachers,usually called rta.for Parent-Teacher Association.They meet together to_______(64) various matters concerning the schoo1.Parents often give_______ (65) time to help with classroom or after school activities.

第 51 题

A．go

B．attend

C．take part in

D．come

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第2题
根据短文回答 51～65 题。 The American Family In the American family the husband and wi

根据短文回答 51～65 题。

The American Family

In the American family the husband and wife usually share important decision making. When the children are _______(1) enough, they take part as well.

Foreigners are often surprised by the permissiveness (宽容) of American parents. The old rule that "children should be seen and not heard" is rarely _______(2), and children are often allowed to do _______(3) they wish without strict control of their parents. The father seldom expects his children to listen to him

_______(4) Question, and children are encouraged to be _______(5) at an early age. Some people believe that American parents carry this freedom _______(6) far. Others think that A strong father image would not _______(7) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to _______(8) their parental families by the time they have _______(9) their late teens or early twenties. Indeed, not to do so is often regarded as A_______(10), A kind of weak dependence.

This pattern of independence often results in serious _______(11) for the aging parents of A small family. The average American is expected-to live

_______(12) The age of 70. The job-retirement age is _______(13) 65. The children have left home, married, and _______(14) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. _______(15) The major problem of many elderly couples is not economic. They feel useless and lonely with neither an Occupation nor A close family group.

第 51 题 请选择（1）处的最佳答案。

A．senior

B．junior

C．old

D．young

点击查看答案
第3题
根据短文回答 51～65 题。 The White House We got up early is morning and___________ （51

根据短文回答 51～65 题。

The White House

We got up early is morning and___________ (51)a long walk after breakfast.We walked through the business section of the city.I told you yesterday that the city is larger___________(52)I thought it would be.___________ (53) the business section is smaller than thought it would be.I suppose that' ___________ (54) Washington is a special kind f city___________(55)the people in Washington work for the government.About 9:30 e went to the White House.It's___________ (56)to the public from 10 till 12,and there as a long line of people waiting to get in.We didn't have to wait very long,because the line moved___________ (57)quickly.

The White House is really white.It is painted every year.And it seems very white,because it's got beautiful lawns all around it,___________ (58)many trees and shrubs.The grounds___________(59)about four square blocks.I mean.They're about two blocks long___________ (60)each side.Of course,we didn't see the whole building.The part___________(61)the President lives and works is not open to the public.But the part we saw was beautiful.We went through five of the main rooms.One of them was the library, on the ground floor.On the next floor, there are three rooms named_______(62)the colors that are used in them:the Red Room,the Blue Room,and the Green Room.The___________ (63)are covered with silk cloth.___________ (64)are many pieces of old furniture,from the time___________ (65)the White House was first built.And everywhere there are paintings and statues of former presidents and other famous people from history.

第 51 题

A．made

B．ran

C．took

D．jumped

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第4题
根据短文回答 51～65 题。 A Country's Standard of Living The"standard of living" of any

根据短文回答 51～65 题。

A Country's Standard of Living

The"standard of living" of any country means the average person' share of the goods and service.s the country produces.A country's smartcard of living,_________ (51) depends on its capacity to produce wealth "wealth" _________ (52) this sense is not money, for we do not live on money_________ (53) on things that money can buy"goods" such as food and clothing,and "services" such as transport and entertainment it.

A country's capacity to produce wealth depends upon many factors,most of_________ (54)have an effect on one another.Wealth depends_________ (55)a great extent upon a country's natural resources.Some regions of the world are well supplied with coal and minerals,and have fertile(肥沃的)soil and a favorable crimple other regions possess none of them.Next to natural resources——(56)the ability to turn them to use.China is perhaps as well—off_________ (57)the USA in natural resources,but suffered for many years from civil and external wars,and_________ (58)this and Other reabsorbs was_________ (59)to develop her resources.Sound and stable political conditions。and_________ (60)from foreign invasions,enable a country to develop is natural resources peacefully and steadily, and to produce more wealth than another country equally well favored by nature but less well ordered.

A country's standard of living does not only depend upon the wealth that is produced and consumed_________(61)its own borders,but also upon what is directly produced through international trade。_________ (62),Britain's wealth in foodstuffs and other agricultural products would be much less if she had to depend only on_________ (63)grown at home.Trade makes it possible for her surplus(过剩的)manufactured goods to be traded abroad for the agricultural products that would_________ (64)be lacking.A country' S wealth is,therefore,much_________ (65)by its manufacturing capacity provided(如果)that other countries can be found ready to accept its manufactures.

第 51 题

A．however

B．furthermore

C．similarly

D．therefore

点击查看答案
第5题
根据短文回答 51～65 题。 The Great Newspaper War Up until about 100 years ago, newspap

根据短文回答 51～65 题。

The Great Newspaper War

Up until about 100 years ago, newspapers in the United States appealed only to the most serious readers. They used no illustrations and the articles were_______(1) Politics or business.

Two men_______(2) that——Joseph Pulitzer of the New York World and William Randolph Hearst of the New York Morning Journal Pulitzer_______(3) the New York World in 1883. He changed it from a traditional newspaper into a very _______(4) one overnight (一夜之间). He (5) lots of illustrations and cartoons. And he told his reporters to write articles on_______ (6) crime or scandal they could find. And they did. One of them even pretended she was crazy and then she was _______(7) to a mental hospital. She then wrote a series of articles about the poor_______(8) of patients in those hospitals.

In 1895, Hearst_______(9) to New York from California He wanted the New York Morning Journal to be more sensational (轰动的) and more exciting_______ (10) The New York World. He also wanted it to be cheaper, so he _______ (11) The price by a penny. Hearst attracted attention because his headlines were bigger than _______ (12). He often said, "Big print makes big news."

Pulitzer and Hearst did anything they_______(13) to sell newspapers. For example, Hearst sent Frederic Remington, the famous illustrator (插呼画家), to _______ (14) Pictures of the Spanish-American War. When he got there, he told Hearst that no fighting was_______ (15). Hearst answered, "You furnish (提供) the pictures. I'll furnish the war."

第 51 题 请选择（1）处的最佳答案

A．about

B．in

C．with

D．of

点击查看答案
第6题
根据短文回答 51～65 题。 Where Did All the Ships Go？ The Bermuda Triangle （三角区) is

根据短文回答 51～65 题。

Where Did All the Ships Go？

The Bermuda Triangle (三角区) is one ________(1) the greatest mysteries of the sea. In this triangular area between Florida, Puerto Rico and Bermuda in Atlantic, ships and airplanes ________(2) to disappear more often than in _______ (3)parts of the ocean. And they do so _______ (4) leaving any sign of an accident or any dead bodies.

It is _______ (5) that Christopher Columbus was the first person to record strange happenings in the area. His compass stopped working, A flame came down from the sky, and A wave 100 to 200-feet-high carried his ship about A mile away.

The most famous disappearance in the Bermuda Triangle was the US Naval (海军的) Air Flight 19. _______ (6) December 5, 1945, five bomber planes carrying 14 men _______ (7) on A training mission from the Florida coast. Later that day, all communications with Flight 19 were lost. They just disappeared without A trace.

The next morning, 242 planes and 19 ships took part in the largest air-sea search in history. But they found nothing.

Some people blame the disappearances _______ (8) supernatural (超自然的) forces. It is suggested the ________(9) ships and planes were either transported to other times and places, kidnapped (绑架) by aliens'(外星人)_______(10) attacked by sea creatures.

There are _______ (11) natural explanations, though. The US Navy says that the Bermuda Triangle is one of two places on earth ________ (12) A magnetic compass (指南针) points towards true north _______(13) magnetic north.

______(14), planes and ships can lose their way if they don't make adjustments.

The area also has changing weather and is known _______ (15) its high waves. Storms can turn up suddenly and destroy A plane or ship. Fast currents could then sweep away any trace of an accident.

第 51 题 请选择（1）处的最佳答案。

A．from

B．of

C．about

D．on

点击查看答案
第7题
根据各有短文回答 51～65 题。 Charter Schools American public education has changed in

根据各有短文回答 51～65 题。

Charter Schools

American public education has changed in recent years. One change is that increasing numbers of American parents and teachers are starting independent public schools_______(1) charter schools 特许学校).

In 1991, there were no charter schools in the United States. Today, more than 2,300 charter schools _______(2) in 34 states and the District of Columbia. 575,000 students _______ (3) these schools The students are from 5 years of age through 18 or older.

A charter school is _______(4) by groups of parents, teachers and community (社区) members. It is similar in some ways _______(5) A traditional public school, it receives tax money to operate just as other public schools do. The _______(6) it receives depends on the number of students. The charter school must prove to local or state governments that its students are learning. These governments _______(7) the school with the agreement, or charter that permits it to operate

Unlike A traditional public school,_______(8), the charter school does not have to obey most laws governing public schools. Local, state or federal governments cannot tell it what to _______(9).

Each school can choose its own goals and decide the ways it wants to

_______(10) Those goals. Class sizes usually are smaller than in many traditional public schools. Many students and parents say _______(11) in charter schools can be more creative.

However, state education agencies, local education-governing committees and unions often _______(12) charter schools. They say these schools may receive money badly._______(13) By traditional public schools. Experts say some charter schools are doing well while others are struggling.

Congress provided 200 million dollars for _______(14) charter schools in the 2002 federal budget (预算); But, often the schools say they lack enough money for their _______(15). Many also lack needed space.

第 51 题 请选择（1）处的最佳答案。

A．called

B．asked

C．known

D．said

点击查看答案
第8题
根据短文回答 51～65 题。 Migrant （移民的) Workers In the past twenty years, there has

根据短文回答 51～65 题。

Migrant (移民的) Workers

In the past twenty years, there has been an increasing tendency for workers to move from one country to another. While some countries have restricted most _______(1) to local people, others have attracted and welcomed migrant workers. This is particularly the case in the Middle East,_______ (2) increased oil incomes have enabled many countries to call in outsiders to improve local facilities. Thus the Middle East has attracted oil-workers_______(3) the U.S.A． and Europe. It has brought in workers from many countries,_______ (4) South Korea and Japan.

In view of the difficult living and working_______(5) in the Middle East, it is not surprising that the pay is high to attract suitable workers. Many engineers and technicians can_______(6) at least twice as much money in the Middle East as they can in their own country, and this is a major_______(7),sometimes a disadvantage has a compensating (补偿的) advantage. For example, the_______(8) living conditions often lead to increased friendship when workers, have to_______(9) on each other for safety and comfort. In a similar way, many migrant workers can save large sums of money partly because of the_______(10) of entertainment facilities. The work is often complex and full of problems but this merely _______(11) greater challenge to engineers who prefer to find solutions to problems rather than do routine work in their home country.

One major problem which_______(12) migrant workers in the Middle East is that their jobs, are temporary ones. They are nearly always on_______(13), so it is not easy for them to plan ahead with great confidence. This is to be_______14) since no country welcomes a large number of foreign workers as permanent residents. In any_______(15), migrant workers accept this disadvantage, along with others, because of the considerable financial benefits which they receive.

第 51 题 请选择（1）处的最佳答案

A．cases

B．jobs

C．activities

D．uses

点击查看答案
第9题
根据短文回答第 51 题 题。 Child Consultants These days,"What do you want to do when y

根据短文回答第 51 题 题。

Child Consultants

These days,"What do you want to do when you grow up？" is the wrong question to ask children in the USA．The________ (51) should be:"what job are you doing now？"American companies are employing more and more young people as consultants to evaluate products for child________ (52).The 12-to-19________ (53)group spends more than$1 00 billion a year in the USA．Specialist agencies have been created

to help manufacturers ask kids about all the latest trends in clothes,food and

________ (54)markets.One________(55),Teenage Research Unlimited,has panels(评判小组)of teenagers who give their verdict(裁决)on products ________ (56)jeans(牛仔裤).Another company, Doyle Research Associated,holds two.hour sessions in a room________(57)the"imaginarium(想象室)"Children are encouraged to play games to get________(58)a creative mood.They have to write down any ideas that--(59)into their heads.

Some manufacturers prefer to do their own________ (60)research.The software company Microsoft runs a weekly" Kid's Council" at its headquarter in Seattle, ________ (61)a panel of school children give their verdict on the________ (62)products and suggest new ones.One 11-year-old,Andrew Cooledge,told them that they should make more computer games which would appeal equally--(63)boys and girls.Payments for the work are increasingly attractive.Andrew Cooledge was paid $250 and given some software.________ (64),even if their ideas are valuable,tile children will never make a fortune.They cannot have the copyright to their ideas.These are not jobs they can hold for long.________ (65)their mid-teens they can be told that they are too old.

第 51 题

A．sentence

B．word

C．answer

D．question

点击查看答案
第10题
根据短文回答 51～65 题。 Pretty Good When Spanish football club Barcelona paid US$35 m

根据短文回答 51～65 题。

Pretty Good

When Spanish football club Barcelona paid US$35 million for Ronaldinho last summer, they weren't buying a pretty face."I am___________ (51),"admits the Brazilian superstar (超级明星) But everyone has got a different kind of beauty.What ___________ (52) have is charm："

Indeed he has.His buck teeth(龅牙),flowing hair, big smile。and of course his___________(53)skills are always eye-catching on the pitch.The 23-year-old striker(中锋)scored two goals in a 3-2 win over Deportivo La Coruna on March 1.It was Barcelona's sixth win in a row and,thanks to their Brazilian'S 10-goal contribution,___________ (54)Looked Like a poor season could now end a success. Ronaldinho-full name Ronaldinho De Assis Moreira—is one of many South Americans who learned their skills playing in the backstreets before___________ ___________ (55)them off on the world stage.

Great things were___________ (56)when Gremio signed him as a seven-year-old,and he soon became friends with Ronaldo Who was then the other young star of Brazilian football.It was Ronaldo who first called him Ronaldinh0,which___________ ___________ (57)Lictle Ronald0. He first___________ (58)for his country in l 999 but it was at the 2002 World Cup where he showed his real worth。scoring an unbelievable free—kick in Brazil's quarter.Final victory___________ (59)England.

"I have never failed to deliver in big matches。"Ronaldinho says."My game is based on improvisation(即兴表演).Often a forward does not have the time to decide whether to shoot or___________ (60).It is instinct that gives out the orders."

While he may not have David Beckham'S good looks,Ronaldinho has a___________ (61)reputation off the pitch.At former club Paris Saint Germain,which sold him

to Barcelona,he broke___________ (62)rules by going out and enjoying the city'S nightlife.

"Without doubt,Ronaldinho is the most___________ (63)player I have ever come

across,"says former PSG coach Luis Ferdandez."The main___________ (64) for any coach is that one player without discipline can hurt the whole team."

But Ronaldinho doesn't think he has done anything wron9."I am just a young person who enjoys___________ (65),"he says.

第 51 题

A．handsome

B．good-looking

C．attractive

D．ugly

点击查看答案
第11题
根据短文回答 51～65 题。 The Recreative Function of Greenspace Facilities Greenspace f

根据短文回答 51～65 题。

The Recreative Function of Greenspace Facilities

Greenspace facilities (设施) are contributing to an important extent to the quality of the urban environment. Fortunately it is_______(1) longer necessary that every lecture or every book about this subject has to start with the proof of this idea. At present it is_______(2) accepted, although more as a self-evident statement_______(3) on the basis of a closely-reasoned scientific proof. The recognition of the importance of green spaces in the urban environment is the _______(4) Step on the right way; this does not_______(5), however, that sufficient details are known about the functions of green space in towns and about the way in which the inhabitants (居民) are using these Spaces. As to this rather complex subject I shall, within the_______(6) of this lecture, enter into one aspect only, namely the receptive (供消遣的) function of green space facilities.

The theoretical separation of_______(7), working, traffic and recreation which for many years has been used in town-and-country planning, has in my_______(8) resulted in disproportionate (不成比例的) attention for forms of recreation far from home, whereas there was relatively _______(9) attention for improvement of receptive possibilities in the direct neighborhood of the home. We have_______(10) to the conclusion that this is not right; because an important part of the time which we do not pass in sleeping or working, is used for_______(11) at and around home. So it is obvious that recreation in the open_______(12) has to begin at the street-door of the house. The urban environment has to offer as many recreation activities as________(13), and the design of these has to be such that more bligatory (必须做的) activities can also have a receptive aspect.

The very best standard of living is nothing if it is not possible to _______(14) a pleasant walk in the district, if the children cannot be allowed to play in the streets because the risks of traffic are too great, if during shopping you can nowhere _______(15) a spot for enjoying for a moment the nice weather, in short if you only feel yourself at home after the street-door of your house is closed after you.

第 51 题 请选择（1）处的最佳答案

A．not

B．no

C．any

D．some

点击查看答案
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