题目
题型：不详难度：来源：
For the lucky carriers of “Methuselah” genes, worries over smoking, eating unhealthily and not getting enough exercise may not be as necessary as to those of us without the special gene pattern .
The “Methuselah” genes could give extra protection against the diseases of old age such as cancer and heart disease. They could also protect people against the effects of the unhealthy lifestyles that we believe will lead us to an early death, scientists say. However, the genes are very rare.
The genes include ADIPOQ, which is found in about 10 percent of young people but in nearly 30 percent of people living past 100. They also include the CETP and the ApoC3 genes, which are found in 10 percent of young people, but in about 20 percent of people over 100 years old.
Some of those genes were discovered by a research group at the Albert Einstein College of Medicine in New York, led by Professor Nir Barzilai. The team studied the genes of over 500 people over 100 years old, and their children.
The studies show that tiny mutations (变异) in the make-up of some genes can greatly increase a person’s lifespan. Barzilai told a Royal Society conference that the discovery of such genes gave scientists clear targets for developing drugs that could prevent age-related diseases, allow people to live longer and stay healthy.
David Gems, a researcher at University College London, believes that drugs to slow ageing will become widespread.
“If we know which genes control longevity (长寿) then we can … target them with drugs. That makes it p
ossible to slow down ageing,” he told The Times. “Much of the pain and suffering in the world are caused by ageing. If we can find a way to reduce that, then we are obliged to take it.”
小题1: According to the article, which of the following is the most important if a person is to live to the age of 100?
| A．Eating healthy food every day. |
| B．Having the right types of genes. |
| C．Having a healthy lifestyle. |
| D．Taking drugs that prevent ageing. |
| A．10% | B．20% | C．30% | D．50% |
| A．The team studied the genes of over 100 people over 100 years of age. |
| B．The researchers found that mutations in certain genes lead to longer life. |
| C．The researchers found ways to develop drugs that could cure age-related diseases. |
| D．The study suggested that most people have genes that could lengthen their lives. |
| A．drugs to slow ageing will be very expensive |
| B．modern science will be able to find more longevity genes |
| C．it is the duty of medical scientists to fight the problems of ageing |
| D．scientists can make new genes that will allow longer life |
答案
小题1:B
小题1:B
小题1:B
小题1:C
解析
核心考点
试题【SCIENTISTS have discovered that living to the age of 100 may have nothing to do 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
The gallery, at Sunderland University, England, is holding a new exhibition “If There Ever Was”. It focuses on scent rather than sight.
The innovative(创新的) idea is the brainchild of curator(馆长) Robert Blackson. His inspiration came from reading the book Fast Food Nation. The book discussed the use of artificial chemicals to flavor things such as milkshakes, making them smell and taste like strawberries, when they’re not actually made from them.
A smell can often conjure up(召唤) memories such as school dinners or a childhood holiday by the sea, but the smells on display, will allow visitors to experience smells their noses won’t have been able to pick out before.
“There’s a whole variety of diffe
rent smells, including some extinct flowers,” explains Blackson. “Some have been gone for hundreds of years.”One extraordinary fragrance(香气) is the aftermath(灾难的后果) of the first atomic bomb, dropped on Japan on August 6,1945.
There is also the smell of Clepatra’s hair, based on incense(熏香) that was popular among ancient Egyptians.
The Soviet Mir space station, which burnt up in the atmosphere in 2001, smells of charred(烧焦的) material (the space station caught fire).
Among the stranger smells is the “surface of the sun”.
“It is hard to sum up. It is an atmospheric smell, like walking into a room when the sun has been pouring i
n” says Blackson. “It gives a freshness, a sun kissed feel with a bit of metal. If you can say something smells hot, this is it.”A team of 11, including perfume designers, have been working on recreating the smells for the exhibition. James Wong, a botanist（植物学家）at Botanic Gardens Conservation International, UK, helped in the recreation of the smells of four extinct flowering plants.
He did this by closely linking the extinct flowers with the smells of existing ones. With the help of historical reports of how the extinct flowers smelled, he was able to remix the aromas(芳香).
The exhibition runs until June 6.Fourteen extinct and impossible smells are on display.
小题1:What might be the best title of the passage?
| A．The Reg Vardy Gallery | B．Egyptian queen Cleopatra’s hair |
| C．A visit to a new exhibition | D．The scents of ancient Egypt |
| A．the scent of ancient Egyptian queen Cleopatra’s hair |
| B．the smells of charred material of the Soviet Mir space station |
| C．the scent of having a childhood vacation by the sea |
| D．the smell of the aftermath of the first atomic bomb dropped on Japan |
| A．Visitors go to Reg Vardy Gallery to enjoy beautiful sights. |
B．James Wong managed to remix the aromas by referring to some historical reports . |
| C．The exhibition will last until July 6. |
| D．The scents visitors will smell are found in the tomb (坟墓) of the ancient Egyptian queen Cleopatra. |
| A．Science | B．Education | C．Entertainment | D．Economy |
An independent college claimed to have become the first school in England to make Chinese a compulsory (强制的) subject for its pupils.
Richard Cairns, the headmaster of Brighton College, said the move aims to recognize the importance of China as the world’s fastest growing economy.
Chinese will become one of the core subjects at the 1,200-pupil college from September. At present the school has only a “handful” of native Chinese students, but it hopes to attract more in the future.
Mr Cairns, who made the announcement in his first week as head of the high-achieving college, said, “One of my key tasks is to make sure that the pupils at Brighton College are equipped for the realities of the 21st century, and one of those realities is that China has the fastest growing economy in the world.
“China has replaced Britain as the world’s fourth-largest economy. We in Britain need to face up to this challenge, see it for the trading opportunity that it is, and ensure that our nation’s children are well-placed to thrive (茁壮成长) in this new global reality.
“A better understanding of the language and culture of China will be hugely important to the advantage of the children of Brighton College.”
Mr Cairns said he hoped the Chinese children already at the college would help and encourage their fellow pupils to learn their language.
In order to lead the way, Mr Cairns, a historian from Oxford, plans to take part in the first Chinese class as a pupil. “I have agreed to join the first Chinese class as a pupil. I think it is the best way for me to show the pupils here how important I regard this new addition to our core subjects.”
小题1:The passage mainly tells us ________.
| A．how to face up to new challenges in the 21st century |
| B．the realities of the 21st century |
| C．the fastest growing economy in the world |
| D．about a school which will make all its pupils learn Chinese |
| A．Chinese is a language spoken by the largest population in the world |
| B．it realizes the importance of China as the world’s fastest growing economy |
| C．Chinese is the easiest language for the students |
| D．there are many native Chinese students at the college |
| A．He sees it to be a threat. | B．He thinks of it as a danger. |
| C．He considers it to be an opportunity. | D．He regards it as an encouragement. |
| A．The Chinese students at the college have already helped their fellow students to learn Chinese. |
| B．The school is the first in England to make Chinese a compulsory subject. |
| C．Mr Cairns has just been made head of this high-achieving college. |
| D．In Mr Cairns’ opinion, learning Chinese will be a great help to his students. |
Krak krak!( Watch out, a leopard (豹)！)
Hok hok hok!( Hey, crowned eagle!)
Very good — you’ve already mastered half the basic vocabulary of the Campbell’s monkey, which lives in the forests of the Tai National Park in Ivory Coast. The adult males have six types of call, each with a specific meaning, but they can mix two or more calls together into a message with a different meaning.
Having spent months recording the monkeys’ calls in response to both natural and artificial stimuli (刺激物), a group led by Klaus Zuberbuhler of the University of St. Andrews in Scotland argues that the Campbell’s monkeys have a certain form of syntax(句法).
This is likely to be controversial because despite great effort to teach chimpanzees(大猩猩) language, they showed little or no ability to combine the sounds they learned into a sentence with a larger meaning. Syntax, basic to the structure of language, uniquely belongs to humans.
“Krak” is a call that warns of leopards in the neighborhood. The monkeys give it in response to real leopards and to leopard shouting broadcast by the researchers. The monkeys can vary the call by adding “-oo”: “Krak-oo” seems to be a general word for hunter, but one given in a special context – when monkeys hear but don’t see a hunter, or when they hear the alarm calls of another species.
The “boom-boom” call invites other monkeys to come toward the male making the sound. Two booms can be combined with a series of “krak-oos”, with a meaning entirely different to that of either of its single parts. “Boom boom krak-oo krak-oo krak-oo” is the monkey’s version of “Timber!” – it warns of falling trees.
If Zuberbuhler is correct, the Campbell’s monkeys can both vary the meaning of specific calls by adding something and combine calls to make a different meaning.
小题1:What is the passage mainly about?
| A．A group of scientists. | B．Calls of Campbell’s monkeys. |
| C．The lifestyle of monkeys. | D．The importance of language. |
| A．don’t communicate by sounds |
| B．only understand simple sentences |
| C．fail to learn language from humans |
| D．are not related to the Campbell’s monkeys |
| A．Krak | B．Boom | C．Boom boom krak-oo krak-oo krak-oo | D．Krak-oo |
| A．Zuberbuhler has spent years in the forests |
| B．the writer isn’t sure of Zuberbuhler’s opinions |
| C．the Campbell’s monkeys are cleverer than other animals |
| D．the Campbell’s monkeys can express six meanings by calls |
This is the life of lab animals.
Now consider the needs of these animals. Chimpanzees(黑猩猩),in their natural homes, are never separated from their families. They spend hours together every day. But in a lab, chimpanzees are put in cages alone. There are no families, only cold, hard cages, and loneliness that goes on for so many years that most of them lose their minds at last.
Worse yet are the experiments. Animals are given diseases they would never normally get. Experimenters force-feed(给……强行喂食) chemicals to them, conduct repeated surgeries(手术),and much more, Think of what it would be like to put up with these and then be thrown back into a cage, usually without any painkillers. Often animals see other animals being killed right in front of them.
Hundreds of thousands of animals are poisoned, blinded, and killed every year in product tests for shampoos, skin creams and new cancer drugs. Although more than 500 companies have stopped testing on animals, some of them still force chemicals into monkeys’ stomachs and rabbits’ eyes.
Although some facilities are better than others at caring for animals—not every lab worker kills a mouse by cutting off its head with scissors—there are no happy animals inside laboratories. Will the lab life end? When will it end?
小题1:The passage mainly tells us about .
| A．animals’ lives in laboratories |
| B．cruel experiments on animals |
| C．the needs of animals in labs |
| D．facilities used to care for animals |
①are very cold, and in separate cages
②feel lonely locked inside a cage
③aren’t fed anything but chemicals
④are forced to undergo cruel tests
⑤are forced to eat chemicals
| A．①③④ | B．②③⑤ | C．②④⑤ | D．①④⑤ |
| A．some companies have found ways to replace animal tests |
| B．animals normally get no strange diseases |
| C．animals are happy in labs with better facilities |
| D．painkillers can change the results of experiments |
| A．positive | B．worried | C．satisfied | D．disappointed |
Patents vary greatly in their degree of strictness towards their children．Some may be especially strict in money matters．Others are severe over times of coming home at night or punctuality for meals．In general, the controls imposed represent the needs of the parents and the values of the community as much as the child’s own happiness．
As regards the development of moral standards in the growing child, consistency is very important in parental teaching．To forbid a thing one day and excuse it the next is no foundation for morality．Also, parents should realize that “example is better than precept”．If they are not sincere and do not practice what they teach, their children may grow confused, and emotionally insecure when they grow old enough to think for themselves, and realize they have been to some extent fooled．
A sudden awareness of a marked difference between their parents’ principles and their morals can be a dangerous disappointment．
小题1:Eagerly watching the child’s acquisition of new skills _________．
| A．should be avoided |
| B．is universal among parents |
| C．sets up dangerous states of worry in the child |
| D．will make him lose interest in learning new things |
| A．should encourage them to read before they know the meaning of the words they read |
| B．should not expect too much of them |
| C．should achieve a balance between pushing them too hard and leaving them on their own |
| D．should create as many learning opportunities as possible |
| A．parents should be strict with their children |
| B．parental controls reflect only the needs of the parents and the values of the community |
| C．parental restrictions vary, and are not always intended for the benefit of the children alone |
| D．parents vary in their strictness towards their children according to the situation |
| A．observe the rules themselves |
| B．be aware of the marked difference between adults and children |
| C．forbid things which have no foundation in morality |
| D．consistently ensure the security of their children |
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