游客
题文

How long you live has a lot to do with your environment and lifestyle, but exceptional(特别的)long life may have even more to do with your genes. For the first time, researchers have discovered a genetic recipe(基因谱)that accurately predicts who may live to 100 and beyond.
Analysis shows that 90% of the participants who lived to 100 had at least one of the signature genetic clusters(标志基因组). Dr. Thomas Perls at the Boston University School of Medicine said, “We realize this is a complex genetic puzzle. There is a long way for us to go to understand how the integration(融合)of these genes—not just with themselves but with environmental factors—is playing a role in this long life puzzle.”
Perls has studied many factors that contribute to long life, and he is the first to acknowledge that living longer isn’t likely to be simply a matter of genes. His previous work has shown, for example, that among most elderly people who live into their 70s and 80s, about 70% can owe their long life to environmental factors such as not smoking; eating a healthy, low-fat, low-calorie diet; and remaining socially engaged and mentally active throughout life.
It seems clear that those who live extremely long are benefiting from a special DNA. In fact, Perls believes that the older a person gets, the more likely it is that his or her genes are contributing to those extended years.
Which of the following is TRUE according to Paragraph 2?

A.Most long-living people have special long-life-related genes.
B.Ninety percent of the participants lived to 100 years of age.
C.All the long-living people have only one signature genetic cluster.
D.Scientists know how the integration of the genes helps people live long.

Perls may most likely agree that         .

A.most people living extremely long benefit from not smoking
B.living longer just depends on certain genetic recipes
C.environmental factors play an important role in long-living
D.being mentally active has nothing to do with living an old age

Which of the following is FALSE according to the text?

A.Remaining socially engaged helps a person to live long.
B.A genetic recipe can accurately predict who may live to 100 and beyond.
C.Perls is the first to think living longer is just a matter of genes.
D.The older he gets, the more likely the genes contribute to his extended years.

Which of the following would be the best title for the text?

A.Genes May Predict Who Lives to 100 B.Environment And Genes
C.Genes, the Secret of Long Living D.Lifestyle And Genes
科目 英语   题型 阅读理解   难度 中等
登录免费查看答案和解析
相关试题

Leeds, England--A Leeds University psychology(心理学) professor is teaching a course to help dozens of Britons forgive their enemies.
“The hatred(痛恨) we hold within us is a cancer,” Professor Ken Hart said, adding that holding in anger can lead to problems such as high blood pressure and heart disease.
More than 70 people have become members in Hart’s first 20-week workshop in London ---a course he says is the first of its kind in the world.
These are people who are sick and tired of living with the memory. “They realize their bitterness(痛楚) is a poison they think they can pour out, but they end up drinking it themselves, ” said Canadian-born Hart.
The students meet in groups of eight to ten for a two-hour workshop with a visit to an adviser every fortnight.
The course, ending in July, is expected to get rid of the cancer of hate in these people. “People have lots of negative(否定) attitudes(态度) towards forgiveness,” he said. “People confuse(使混乱) forgiveness with forgetting. Forgiveness means changing from a negative attitude to a positive one.”
Hart and his team have created instructions to provide the training needed.
“The main idea is to give you guidelines on how to look at various angers and how they affect you, and how to change your attitude toward the person you are angry with,” said Norman Claring-bull, a senior expert on the forgiveness project.
Hart said he believes forgiveness is a skill that can be taught, as these people “want to get free from the past”.
The author wrote this passage in order to ______.

A.persuade us to go to Hart’s workshop
B.tell us the news about Hart’s workshop
C.tell us how to run a workshop like Hart’s
D.help us to look at different angers

From the passage we can find that ________.
A. high blood pressure and heart disease are caused by hatred
B. high blood pressure can only be cured by psychology professors
C. without hatred, people have less trouble connected with blood and heart
D people who suffer from blood pressure and heart disease must have many enemies
In Hart’s first 20-week workshop, people there can ________.

A.meet their enemies B.change their minds
C.enjoy the professor’s speech D.learn how to quarrel with others

If you are a member in Hart’s workshop, you’ll have to _________.

A.pay much money to Hart B.go to the workshop every night
C.attend a gathering twice a month D.pour out everything stored in your mind

American farmers are raising five percent more goats for meat these days.
Goat meat is high in protein(蛋白质)and lower in unhealthy fat than many other meats.Even so,the industry is small compared to chicken,beef and pork. But immigration has brought more of a taste for goat to America from all over the world.
Experts from the University of Illinois offer some questions for people to consider if they are thinking about raising goats.
First of all,do you understand that there always has to be someone to care for the goats?
◆How much land do you have available? And how good is it? Poor ground may support two to four goats on half a hectare.Better grassland can support six to eight. If goats and cattle share the land,two goats can be added for each cow. The goats will eat weeds and other plants that cattle do not like.
◆Do you have buildings for the number of female goats you plan to keep during winter? An open,cold,dry barn is better than a closed,warm barn where the air is wet.
◆Do you have the equipment to clean barns(畜棚) and to harvest hay(草料) to feed your goats? Or will you get someone else to do it,or buy the hay?
The experts say a profitable business in goat meat may take three to five years to establish.And, of course, there are no guarantees .
On which section of a newspaper will this passage appear?

A.International Affairs B.Entertainment
C.Agriculture D.Culture

Which of the following is NOT a factor in making goat meat more popular?

A.Goat meat is healthy food.
B.Immigrants bring different tastes.
C.The industry still leaves room for profit.
D.Raising goats is challenging.

If someone has two hectares of good grass land, what is the maximum number of cows and goats he can raise?

A.32 cows and 64 goats. B.32 cows and 32 goats.
C.16 cows and 32 goats. D.8 cows and 16 goats.

What is the experts’ opinion about the goat-raising business?

A.You can make sure money.
B.You had better be cautious and patient.
C.Goats are hardly possible to raise.
D.Goat meat still needs to be recognized.

When we can see well, we do not think about our eyes often. It is only when we can not see perfectly that we come to see how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing and reading, become nearsighted. Then they have to wear glasses in order to see distant things clearly.
People who are farsighted face just the opposite problem. They can see things that are far away, but they have difficulty reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses too.
Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts(白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.
When night falls, colors become fainter(不清楚) to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you, which seems to disappear if you turn your head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they can not see it any more, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark.
We don’t know that our eyes are of great importance until ________.

A.we think about our eyes B.we cannot see clearly
C.we wear glasses D.we have to do much reading

According to the passage, a ________ is more likely to be nearsighted.

A.student B.runner C.guard D.worker

People who are farsighted ________ .

A.cannot do a lot of close work without glasses
B.can only see things that are very close to their eyes
C.have difficulty reading a book if they hold it at arm’s length
D.have the same problem as the nearsighted people

To see a small thing at night, it is better to look ________ .

A.with wide open eyes B.with half shut or narrowed eyes
C.straight at it D.in a slightly different direction

Welcome to Hong Kong Disneyland
Sight spot
What to do and see
Main Street USA
See old-time taxis and yellow street lamps
Enjoy delicious food in the shops or restaurants
in a small town in the 1900s
Fantasyland
Take a train high up in the air to Sleeping Beauty Castle
Talk to Donald Duck
Sit on a flying elephant
Go under the sea
Adventure land
Go into a dark jungle(丛林)
Follow the river and meet surprises at every corner
Watch the dancing and listen to music The Lion King
Tomorrow land
Join a cartoon character to save the world
Rocket through outer space in a spaceship
Special (not in other Disneyland parks)
Mickey in a red-and-yellow Chinese suit
Mulan in her own pavilion(亭子)
Fireworks at night with music

Walking on Main Street USA is ____________.

A.the start of Disneyland B.being back in time
C.living on a quiet street D.shopping on a busy street

Which is NOT TRUE according to the form above?

A.We can talk to Donald Duck.
B.Surprises are waiting for us along the river in Adventure land.
C.We can enjoy fireworks at night.
D.The flying elephant will take us to Sleeping Beauty Castle

Li Ping likes science-fiction best, so he’ll show the greatest interest in _______.

A.Main Street USA B.Fantasyland
C.Adventure land D.Tomorrow land

What is special in Hong Kong Disneyland?

A.Visitors can join a cartoon character.
B.Visitors can listen to the music The Lion King.
C.Visitors can see Mickey in a Chinese suit.
D.Visitors can go under the sea.

For a 400-year-old art form,opera(歌剧) had a bad fame: overweight actresses singing the words which were hard to understand in one of those romance languages you were supposed to learn in high school. And with tickets costing as much as $145 a performance, opera goers also had a certain appearance in people's mind: rich, well-dressed and old.
But now opera companies around the country are loosening their ties and kicking off their shoes in an attempt to keep opera alive and take it to a younger and not so wealthy audience.
Opera producers have found that to attract this crowd, they need to make the opera closer to common people. Because young people don't or won't come to the opera, companies are bringing the opera to them, giving performances in such unusual places as parks, libraries and public schools.
The Houston Grand Opera's choice is the public library, where it performs “mobile operas”, shortened versions(剧本) of child-friendly operas. This summer's production is Hansel Gretel. By performing smaller versions of large productions, producers are able to make people interested while keeping costs at a reasonable level. The San Francisco Opera, which will be celebrating its 75th anniversary(周年) this year, is staging Cinderella free of charge, keeping costs down by employing students from its Young Artists' Training Program.
Which is the main idea of this passage?

A. Opera is famous for its long history.
B. Opera is only performed for rich people.
C. Opera companies are trying to keep opera alive.
D. Young people are not interested in opera.

The underlined phrase in the second paragraph means __________.

A. breaking up the old rules
B. changing the dresses
C. making the audience at ease
D. advertising themselves

From the passage we can infer that __________.

A. the tickets for operas are very expensive
B. operas are performed in a difficult language
C. operas are not so popular an art form today
D. students enjoy performing operas very much

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号