Even if we have an extremely healthy diet and lifestyle, the human body is programmed to wear out at a maximum of about 120 years, and usually less. We all have a biological clock inside us which determines the moment when our organs cease to function properly. This is because our cells have stopped renewing themselves and our body can no longer repair itself. This is also the moment when we are more likely to begin to suffer from the diseases of old age such as arthritis and Alzheimer’s. However, rapid advances in DNA research are beginning to throw light on the secrets of the ageing process. By the end of this century we could literally have the power of life over death.
Although it has long been accepted that humans have a fixed lifespan, it is also a fact that certain other organisms, such as reptiles and amphibians, appear to live indefinitely. The only reason we do not see 500-year-old alligators is because in the wild their lives are always in danger, from man, from pollution and from other animals. When they are kept in zoos they do not seem to age at all after they are fully grown. The same is true of some species of fish, which grow indefinitely and show no signs of ageing. The existence of animals with no fixed lifespan seems to indicate that an age gene really does exist. It is this gene which scientists are searching for, which may delay or repair damage to the body caused by ageing.
Another new area of research involves the oxidation（氧化） theory, which says that ageing is caused by the same process that makes iron rust. In controlled experiments, the lifespans of certain animals were shown to be lengthened with anti-oxidants; for example, the lifespan of mice can be increased by 30%. Antioxidants are already being used in face creams and other cosmetics, and they are likely to play an important part in keeping people physically young.
Perhaps the most immediate advance we are likely to see in the battle to halt（停止）the ageing process will be organ replacement. By the year 2020 it is likely that we will be replacing injured bones or even organs like livers and kidneys with ones “grown” in laboratories. By 2050 perhaps every organ in the body, except the brain, will have become commercially available. Recent experiments also show that it may one day be possible to “grow” new organs inside our body to replace worn-out ones, something which lizards and alligators already do.
Suddenly immortality（不死，不朽） seems within reach. We can begin to imagine a future where we are born, we grow to maturity, but we never grow old and die. But do we really want to live forever? When all humans reach a certain age, .
| A．they suffer the effects of their diet and lifestyle |
| B．the organs stop to perform appropriately |
| C．their cells continue to renew themselves |
| D．they develop arthritis and Alzheimer’s |
The purpose of showing the case of alligators is to prove .
| A．alligators are in danger in the wild because of the threat from man, pollution and other animals |
| B．it is widely accepted that humans have a fixed lifespan |
| C．there exists an age gene which may control ageing |
| D．the age gene damages the body |
The underlined phrase “live indefinitely” in Paragraph 2 probably mean .
| A．live for a period of time without a fixed end |
| B．live without a clear aim |
| C．live in an uncertain way |
| D．live without being fully grown |
It can be inferred from Paragraph 4 that .
| A．by 2050 we might have most of our worn-out organs replaced with new ones commercially |
| B．never can the ageing process be avoided |
| C．livers and kidneys are sure to be grown in laboratories by the year 2020 |
| D．lizards and alligators grow new organs inside their body to replace worn-out ones |
What is the main topic of this passage?
| A．DNA researches show how our cells renew themselves. |
| B．Anti-oxidants are likely to play an important part in keeping people young. |
| C．How our biological clock works? |
| D．Eternal（永恒的） youth: new developments in anti-ageing research. |
By saying “But do we really want to live forever”, the author may probably mean .
| A．a future where we are born, we grow to maturity, but we never grow old and die is on its way |
| B．he is uncertain whether we can live forever |
| C．it remains to be seen whether immortality is a blessing or a curse |
| D．immortality is no longer a dream |
Heroes of Our Time
A good heart
Dikembe Mutombo grew up in Africa among great poverty and disease. He came to Georgetown University on a scholarship(奖学金) to study medicine — but Coach(教练) John Thompson got a look at Dikembe and had a different idea. Dikembe became a star in the NBA, and a citizen of the United States. But he never forgot the land of his birth, or the duty to share his fortune with others. He built a new hospital in his old hometown in the Congo. A friend has said of this good-hearted man: “Mutombo believes that God has given him this chance to do great things.”
Success and kindness
After her daughter was born, Julie Aigner-Clark searched for ways to share her love of music and art with her child. So she borrowed some equipment, and began filming children’s videos(录像) in her own house. The Baby Einstein Company was born, and in just five years her business grew to more than $20 million in sales. And she is using her success to help others — producing child safety videos with John Walsh of the National Center for Missing and Exploited Children. Julie says of her new program: “I believe it’s the most important thing that I have ever done. I believe that children have the right to live in a world that is safe.”
Bravery and courage
A few weeks ago, Wesley Autrey was waiting at a Harlem subway station with his two little girls when he saw a man fall into the path of a train. With seconds to act, Wesley jumped onto the tracks, pulled the man into the space between the rails(铁轨), and held him as the train passed right above their heads. He insists he’s not a hero. He says: “We have got to show each other some love.”
60. What was Mutombo praised for?
A. Being a star in the NBA. B. Being a student of medicine.
C. His work in the church. D. His willingness to help the needy.
61. Mutombo believes that building the new hospital is ______.
A. helpful to his personal development
B. something he should do for his homeland
C. a chance for his friends to share his money
D. a way of showing his respect to the NBA
62. What did the Baby Einstein Company do at its beginning?
A. Produce safety equipment for children.
B. Make videos to help protect children.
C. Sell children’s music and artwork.
D. Look for missing and exploited children.
63. Why was Wesley Autrey praised as a hero?
A. He helped a man get across the rails.
B. He stopped a man from destroying the rails.
C. He protected two little girls from getting hurt.
D. He saved a person without considering his own safety.
第三部分阅读理解（共20小题；每小题1分，满分20分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
I travel a lot, and I find out different “styles”(风格) of directions every time I ask “How can I get to the post office?”
Foreign tourists are often confused(困惑) in Japan because most streets there don’t have names; in Japan, people use landmarks(地标) in their directions instead of street names. For example, the Japanese will say to travelers, “Go straight down to the corner. Turn left at the big hotel and go past a fruit market. The post office is across from the bus stop.”
In the countryside of the American Midwest, there are not usually many landmarks. There are no mountains, so the land is very flat; in many places there are no towns or buildings within miles. Instead of landmarks, people will tell you directions and distances. In Kansas or Iowa, for example, people will say, “Go north two miles. Turn east, and then go another mile.”
People in Los Angeles, California, have no idea of distance on the map; they measure distance in time, not miles. “How far away is the post office?” you ask. “Oh,” they answer, “it’s about five minutes from here.” You say, “Yes, but how many miles away is it?” They don’t know.
It’s true that a person doesn’t know the answer to your question sometimes. What happens in such a situation? A New Yorker might say, “Sorry, I have no idea.” But in Yucatan, Mexico, no one answers “I don’t know.” People in Yucatan believe that “I don’t know” is impolite. They usually give an answer, often a wrong one. A tourist can get very, very lost in Yucatan!
56. When a tourist asks the Japanese the way to a certain place, they usually ______.
A. describe the place carefully B. show him a map of the place
C. tell him the names of the streets D. refer to recognizable buildings and places
57. What is the place where people measure distance in time?
A. New York. B. Los Angeles. C. Kansas. D. Iowa.
58. People in Yucatan may give a tourist a wrong answer ______.
A. in order to save time B. Los Angeles.
C. so as to be polite D. for fun
59. What can we infer from the text?
A. It’s important for travelers to understand cultural differences.
B. It’s useful for travelers to know how to ask the way properly.
C. People have similar understandings of politeness.
D. New Yorkers are generally friendly to visitors.
Country music is one of the most popular kinds of music in the United States today because it is about simple but strong human feelings and events------love, sadness, good times, and bad times. It tells real-life, stories and sounds the way people really talk. As life becomes more complicated(复杂), it is good to hear music about ordinary people.
Country music, sometimes called country-western, comes from two kinds of music. One is the traditional music of the people in the Appalachian Mountains in the eastern Unite States. The other is traditional cowboy music from the west. The singers usually play guitars, and in the 1920s they started using electric guitars. At first city people said country music was low class. It was popular mostly in the South. But during World War II, thousands of Southerners went to the Northeast and Midwest to work in the factories. They took their music with them. Soldiers from the rest of the country went to army camps in the South. They learned country music. Slowly it became popular all over the country.
Today country music is also popular everywhere in the United States and Canada-------in small towns and in New York City, among black and white, and among educated and uneducated people. About 1, 200 radio stations broadcast country music twenty-four hours a day. English stars sing it in British English, and people in other countries sing it in their own languages. The music that started with cowboys and poor southerners is now popular all over the world.
77. It can be learned from the passage that country music comes from.
A. the Northeast and Midwest
B. factories and army camps in the South
C. the Appalachian Mountains and the West
D. real-life stories in small towns
78. Before World War II country music was popular mainly in.
A. the south B. the north C. the Midwest D. the Northeast
79. Country music is one of the most popular kinds of music in the world
today because.
A. city people said it was low class
B. people could sing it in many different languages
C. it started with cowboys and poor Southerners
D. it is loved by different kinds of people in the world
80. Which of the following is NOT true according to the passage?
A. Country music is about human feelings and events.
B. Country music is sung by stars all in English.
C. Country music is popular among city people today.
D. City people didn’t like country music at first.
In the mid 1990’s, people started doing business on the Internet. At that time, there were two kinds of companies(公司). First, there were traditional companies. They sold things in stores. Then there were Internet companies. They didn’t have a store, and they only sold things on the Net.
Traditional companies didn’t want to lose any business. Quickly they made their own websites and began selling things on the Net. These are the so-called “brick and click” companies. Many stores are made of brick. And you click on your mouse to buy things with your computer. That’s where the name “brick and click” comes from.
By the late 1990’s, e-business like amazon.com, buy.com and etoys.com were in trouble. Their profits（利润）were not very high. Competition was great. Many of these business were losing lots of money. In 2000, many e-business went out of business.
Why are “brick and click” companies, like Barnes and Noble, Toys RVs and Walmart so successful? First, many customers know and trust their names. Their websites like walmart.com. are easy to remember. These companies also have lots of experience. They know how to run a successful business.
In the world of e-commerce, companies are fighting for every dollar and every customer. Will “brick and click” companies win the war? Only time will tell.
72. Which of the following would be a “brick and click” company?
A. A restaurant.
B. A clothing company with no website.
C. A bookseller with five stores and a website.
D. A video seller with a big website but no stores.
73. What did many traditional companies do in the mid 1990’s? .
A .They went out of business.B. They made their websites.
C. They bought Internet companies. D. They sold their companies.
74. What gave Internet companies lots of trouble in the late 1990’s?.
A. Heavy competition. B. They were short of money.
C. They didn’t know what to do.D. people didn’t believe in them.
75. “Brick and click” companies are so successful because______.
A. people trust them B. their names are easy to remember
C. they are experiencedD. all the above
76. Which of the following is TRUE according to the passage?
A. All the “brick and click” companies run a successful business.
B. “Brick and click” companies are certain to win the business competition.
C. It is uncertain whether “brick and click” companies will win the competition.
D. Both “brick and click” companies and Internet companies will be successful in the future
When friends come to visit us in the evening, they spend their time telling us they are in a hurry and looking at their watches. It isn’t that our friends are all very busy; it is just that we haven’t got a television. People think that we are very strange. “But what do you do in the evening?” they are always asking. The answer is very simple. Both my wife and I have hobbies. We certainly don’t spend our evenings staring at the walls. My wife enjoys cooking and painting and often attends evening classes in foreign languages. This is particularly useful as we often go abroad for our holidays. I collect stamps and I’m always busy with my collection. Both of us enjoy listening to the music and playing chess together．
Sometimes there are power cuts and we have no electricity in the house. This does not worry us; we just light candles and carry on with what we were doing before. Our friends, however, are lost------No television! -------So they don’t know what to do. On such evenings our house is very full; they all come to us. They all have a good time. Instead of sitting in silence in front of the television, everybody talks and plays games．
69. The couple have not got a television, because______．
A. they are not rich enough
B. they are strange people
C. they enjoy spending evenings in their own ways
D. they don’t know what to do when there are power cuts
70. At night when there is no electricity, the couple____．
A. have to look at the walls B. can do nothing but sit in silence
C. will have many visitors D. have to go out for candles
71. The best title for this passage is _____________.
A. Why Do We Need a Television? B. Candle! But No Electricity!
C. Different Friends, Different Hobbies D. We Go Without Televisions!