How Long Can People Live?
She took up skating at age 85, made her first movie appearance at age 114, and held a concert in the neighborhood on her 121at birthday.
When it comes to long life, Jeanne Calment is the world’s record holder. She lived to the ripe old age of 122. So is 122 the upper limit to the human life span（寿命）? If scientists come up with some sort of pill or diet that would slow aging, could we possibly make it to 150 or beyond?
Researchers don’t entirely agree on the answers. “Calment lived to 122, so it”
wouldn’t surprise me if someone alive today reaches 130 or 135," says Jerry Shay at the University of Texas．
Steve Austad at the University of Texas agrees．"People can live much longer than we think," he says．"Experts used to say that humans couldn't live past 110．When Calment blew past that age, they raised the number to 120．So why can't we go higher? "
The trouble with guessing how old people can live to be is that it's all just guessing．"Anyone can make up a number," says Rich Miller at the University of Michigan．"Usually the scientist who picks the highest number gets his name in Time magazine．"
Won't new anti-aging techniques keep us alive for centuries? Any cure, says Miller, for aging would probably keep most of us kicking until about 120．Researchers are working on treatments that lengthen the life span of mice by 50 percent at most．So, if the average human life span is about 80 years, says Miller, "adding another 50 percent would get you to 120．"
So what can．we conclude from this little disagreement among the researchers? That life span is flexible, but there is a limit, says George Martin of the University of Washington．"We can get flies to live 50 percent longer," he says．"But a fly's never going to live 150 years．" Of co
urse, if you became a new species, one that ages at a slower speed, that would be a different story, he adds．
Does Martin really believe that humans could evolve （进化） their way to longer life? "It's pretty cool to think about," he says with．a smile．What does the story of Jeanne Calment prove to us?
| A．People can live to 122． |
| B．Old people are creative,, |
| C．Women are sporty at 85． |
| D．Women live longer than men． |
According to Steve Austad at the University of Texas, _____．
| A．the average human life span could be 110 |
| B．scientists cannot find ways to slow aging |
| C．few people can expect to live to over 150 |
| D．researchers are not sure how long people can live |
Who would agree that a scientist, will become famous if he makes the wildest guess at longevity?
| A．Jerry Shay． | B．Steve Austad | C．Rich Miler | D．George Martin |
What can we infer from the last three paragraphs?
A
．Most of us could be good at sports even at 150．
B．The average human life span cannot be doubled
C．Scientists believe mice are aging at a slower speed than before．
D．New techniques could be used to change flies into a new species
For thousands of years, man has enjoyed the taste of apples. Apples, which are about 85 percent water, grow almost everywhere in the world but the hottest and coldest areas (地区). Among the leading countries in apple production are China, France and the United States.
There are various kinds of apples, but a very few make up the majority of those grown for sale. The three most common kinds grown in the United States are Delicious, golden Delicious, and McIntosh.
Apples are different in colour, size, and taste. The colour of the skin may be red, green, or yellow. They have various sizes, with Delicious apples being among the largest. The taste may be sweet or tart (酸的). Generally, sweet apples are eaten fresh while tart apples are used to make applesauce (苹果酱).
Apple trees may grow as tall as twelve metres. They do best in areas that have very cold winters. Although no fruit is yielded during the winter, this cold period is good for the tree. It can be learned from the text that Delicious apples are _______________
| A．grown in France. | B．sold everywhere. |
| C．very big. | D．quite sweet. |
Cold winter weather is good for _______________
| A．the growth of apple trees. |
| B．producing large apples. |
| C．improving the taste of apples. |
| D．the increase of water in apples. |
China, France and the United States are considered to _______________
| A．be large producers of apples. |
| B．be large producers of applesauce. |
| C．have the longest history in apple production. |
| D．have the coldest winter among apple producing countries. |
The word yielded in the last sentence means _______________
| A．improved. | B．increased. |
| C．produced. | D．sold. |
Today, roller skating is easy and fun. But a long time ago, it wasn't easy at all. Before 1750, the idea of skating didn't exist. That changed because of a man named Joseph Merlin. Merlin's work was making musical instruments. In his spare time he liked to play the violin. Joseph Merlin was a man of ideas and dreams. People called him a dreamer.
One day Merlin received an invitation to attend a fancy dress ball. He was very pleased and a little excited. As the day of the party came near, Merlin began to think how to make a grand entrance at the party. He had an idea. He thought he would get a lot of attention if he could skate into the room.
Merlin tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe. These were the first roller skates. Merlin was very proud of his invention and dreamed of arriving at the party on wheels while playing the violin.
On the night of the party Merlin rolled into the room playing his violin. Everyone was astonished to see him. There was just one problem. Merlin had no way to stop his roller skates. He rolled on and on. Suddenly, he ran into a huge mirror that was hanging on the wall. Down fell the mirror, breaking to pieces. Nobody forgot Merlin's grand entrance for a long time!The text is mainly about_________.
| A．a strange man |
B．an unusual party |
C．how roller skating began |
D．how people enjoyed themselves in the 18th century |
People thought Merlin was a dreamer because he________.
| A．often gave others surprises | B．was a gifted musician |
C．invented the roller skates | D．was full of imagination |
Merlin put wheels under his shoes in order to_______.
| A．impress the party guests | B．arrive at the party sooner |
C．test his invention | D．show his skill in walking on wheels |
What is the main point the writer is trying to make in the last paragraph?
| A．The roller skates needed further improvement. |
B．The party guests took Merlin for a fool. |
C．Merlin succeeded beyond expectation. |
D．Merlin got himself into trouble. |
Some people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?
Television has not killed reading, however. Today, newspapers sell in very large numbers. And books of every kind are sold more than ever before. Books are still a cheap way to get information and enjoyment. Although some books with hard covers are expensive, many books are printed today as paperbooks (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater, and you can keep a book for ever and read it many times.
Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. Every home should have a good dictionary. A good encyclopedia (百科全书), though expensive, is useful, too, because you can find information on any subject. Besides, you can have such books as history books., science textbook, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets.It can be inferred from the passage that ________.
| A．TV programs are a chief provider of knowledge |
| B．cinemas are the best choice in getting information |
| C．reading is a cheap way of learning and having fun |
| D．newspapers are an expensive way to enjoy oneself |
What does the sentences “Television has not killed reading, however ” underlined in the second paragraph suggest?
| A．People only need reading, though. | B．Reading is still necessary today. |
| C．Reading is more fun than television. | D．Watching television doesn’t help reading. |
What can we learn from the passage?
| A．Fewer and fewer people will buy books. |
| B．A good dictionary should be kept in every home. |
| C．Books with hard covers sell better than paperbooks. |
| D．More people like TV programs about famous men. |
When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm, in the winter especially, we wear quite out off from the outside world. As soon as I left school, I packed my bags and moved to the capital. However, I soon discovered that my life has its too.
One big disadvantage is money. It costs so much to go out, not to mention basics like food and housing. Another disadvantage is pollution. I suffer from asthma(哮喘), and the air is so that I am afraid to go outside. Then there is the problem of traveling round. Although I have a car, I seldom use it became of the traffic jams. One choice is to go by bicycle, but that can be quite dangerous.
Of course there are advantages. First, there is so much to do in the city, whatever you tastes in culture or entertainment(娱乐活动). Besides, there are wonderful jobs and greater chances of moving to a more important job or position. Finally, if you like shopping, the variety of goods is very surprising --- and , what is more, shops are often only a short walk away.
Is life better then, in the city? Perhaps it is , when you are in your teens(十几岁)or twenties. However, as you get older, and especially if you have small children, the peace of the countryside may seem preferable. I certainly hope to move back there soon. What was the writer always thinking about when he was a child?
| A．Staying on the farm. | B．Moving to the countryside. |
| C．Leaving home for the city. | D．Running away from the school. |
Which of the following is true about the writer?
| A．He is very old now. | B．He is in good health. |
| C．He prefers driving a car. | D．He lives in the city now. |
In the passage, the writer tries to __________.
| A．express his opinions about way of life | B．describe his life in the countryside |
| C．an interest in the outside world | D．persuade the reader to live in the city |
How is the passage mainly developed?
| A．By inferring. | B．By comparing. |
| C．By listing examples. | D．By giving explanations. |
A year ago, I paid no attention to English idioms, though my teacher emphasized(强调) the importance again and again. But soon, the importance of English idioms was shown in an amusing experience.
One day, I happened to meet an Englishman on the road, and soon we began to talk. As I was talking about how I was studying English, the foreigner seemed to be astonished. Gently shaking his head, shrugging his shoulders, he said, “You don’t say!” “You don’t say!” I was puzzled. I thought, perhaps this is not an appropriate topic(适当的话题). “Well, I’d better change the topic.” So I said to him. “Well, shall we talk about the Great Wall? By the way, have you ever been there?” “Certainly, everyone back home will laugh at me if I leave China without seeing it. It was magnificent.” He was deep in thought when I began to talk like a tourist guide. “The Great Wall is one of the wonders in the world. We are very proud of it.” Soon I was interrupted again by his words：“You don’t say!” I couldn’t help asking, “Why do you ask me not to talk about it?” “Well, I didn’t request you to do so, ” he answered, greatly surprised. I said, “Didn’t you say’ you don’t say？” Hearing this, the Englishman laughed to tears. He began to explain, ‘You don’t say’ actually means ‘really!’ It is an expression of surprise. Perhaps you don’t pay attention to English idioms.” Only then did I know I had made a fool of myself. Since then I have been more careful with idiomatic expressions. Remember: what the English teachers said is always right to us students. A year ago, I paid no attention to English idioms because _______.
| A．English idioms were not important |
| B．I was not careful with English idioms |
| C．my teacher didn’t emphasize the importance of them |
| D．I had no interest in them |
At first, on hearing “You don’t say,” I thought the foreigner meant _______.
| A．he was not interested in the topic |
| B．he was only interested in the Great Wall |
| C．I had talked too much |
| D．I had to stop talking |
The underlined word in the first paragraph probably means _______.
| A．interesting | B．important |
| C．terrible | D．unlucky |
Which of the following is true according to the passage？
| A．The Englishman left China without seeing the Great Wall. |
| B．The Englishman wanted to see the Great Wall after I talked about it. |
| C．The Englishman wanted me to act as his guide. |
| D．The Englishman visited the Great Wall and thought it worth visiting. |
After the Englishman explained the idiom, _______.
| A．I thought the Englishman had made me a fool |
| B．the Englishman became a real fool. |
| C．I felt very silly |
| D．I became more carefully in everything |