What will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio-technology(生物技术). With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today’s leading killers, such as heart diseases, cancer, and aging itself, will become distant memory.
In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death. Cells(细胞) are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine to repair their organs(器官). The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on---in much the same way our bodies make new skin cells to take the place of old ones.
It is exciting to imagine that the advance in technology may be changing the most basic conditional human existence, but many technical problems still must be cleared up on the way to this wonderful future.According to the passage, human death is now mainly caused by _______.
| A．diseases and aging | B．accidents and war |
| C．accidents and aging | D．heart diseases and war |
In the author’s opinion, today’s most important advance in technology lies in _____.
| A．medicine | B．the internet | C．brain cells | D．human organs |
Humans may live longer in the future because ______.
| A．heart disease will be far away from us |
| B．human brains can decide the final death |
| C．the basic materials of cells will last forever |
| D．human organs can be repaired by new medicine |
We can learn from the passage that _____.
| A．human life will not last more than 120 years in the future |
| B．human have to take medicine to build new skin cells now |
| C．much needs to be done before humans can have a longer life |
| D．we have already solved the technical problems in building new cells. |
John Fisher, a builder, and his wife Elizabeth wanted more living space, so they left their small flat for an old 40-meter-high castle tower. They have spent five years turning it into a beautiful home with six floors, winning three architectural prizes.
“I love the space, and being private,” Elizabeth says. “You feel separated from the world. If I am in the kitchen, which is 25 meters above the ground floor, and the doorbell rings, I don’t have to answer it because visitors can’t see I am in!”
There are 142 steps to the top so if I go up and down five or six times a day, it’s very good exercise! But having to carry heavy things to the top is terrible, so I never buy more than two bags of shopping from the supermarket at a time. Except for that, it’s a brilliant place to live.
“When we first saw the place, I asked my father’s advice about buying it, because we couldn’t decide. After paying for it, we were a bit worried because it looked awful. But we really loved it, and knew how we wanted it to look.”
“Living here can be difficult—yesterday I climbed a four-meter ladder to clean the windows. But when you stand on the roof you can see all the way out to the sea on a clear day, and that’s a wonderful experience. I am really glad we moved. ”What is the writer trying to do in the text?
| A．describe how to turn an old tower into a house |
| B．recommend(推荐) a particular builder |
| C．describe what it is like to live in a tower |
| D．explain how to win prizes for building work |
Which of the following best describes Elizabeth’s feelings about the tower?
| A．She wanted it as soon as she saw it. |
| B．She likes most things about it. |
| C．She has been worried since they paid for it. |
| D．She finds it unsuitable to live in. |
What problem does Elizabeth have with living in such a tall building?
| A．Her visitors find it hard to see if she is at home. |
| B．She feels separated from others. |
| C．She cannot bring home lots of shopping at once. |
| D．It is impossible to clean any of the windows. |
How will John and Elizabeth advertise their tower if they sell it?
A． |
B． |
C． |
D． |
Parents whose children show a special interest in a particular sport feel it very difficult to make a decision about their children’s careers. Should they allow their children to train to become top sports men and women? For many children it means starting school work very young, and going out with friends and other interests have to take a second place. It’s very difficult to explain to a young child why he or she has to train five hours a day, even at the weekend, when most of his or her friends are playing.
Another problem is of course money. In many countries money for training is available from government for the very best young sportsmen and women. If this help can not be given, it means that it is the parents who have to find the time and the money to support their child’s development—and sports clothes, transport to competitions, special equipment, etc. can all be very expensive.
Many parents are worried that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young muscles may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by training young that you can reach the top as a successful sports person. It is clear that very few people do reach the top, and both parents and children should be prepared for failure even after many years of training.This article is most probably taken from________.
| A．a letter |
| B．an advertisement |
| C．a personal diary |
| D．a newspaper article |
According to the passage, parents whose children show a special interest in a sport _______.
| A．feel uncertain if they should let their children train to be sports men or women |
| B．try to get financial（财务的）support from the government for their children’s training |
| C．have to get medical advice from doctors about training methods |
| D．prefer their children to be trained as young as possible |
The underlined phrase“to take a second place”means_________.
| A．to repeat the activities at some other place |
| B．to become less important |
| C．all things considered, they are of poor quality |
| D．to happen again |
Strange things happen when you travel, because the earth is divided into twenty-four zones. The time difference between two zones is one hour. You can have days with more than twenty-four hours and days with fewer than twenty- four hours. You can have weeks with more than seven days and weeks with fewer than seven days.
If you make a five-trip across the Atlantic Ocean , your ship come into a different time zone every day. As you come into each zone, the time changes one hour. If you travel west, you set your watch back. If you travel east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you make a trip by ship across the Pacific Ocean , you cross the International Date Line. This is the point where a new day begins when you cross the line, you change one full day. If you travel east, today becomes yesterday, if you travel west it is tomorrow.Something interesting will happen to the time if you travel because .
| A．a day has always fewer than twenty-four hours |
| B．a day has always more than twenty- four hours |
| C．a day has more or fewer than twenty-four hours, |
| D．some time zones are large and some time zones are small |
The time difference between two time zones is .
| A．twenty-four hours | B．one hour |
| C．two hours | D．twenty-three hours |
If we cross the Atlantic Ocean, we .
| A．change one full day | B．set our watch back |
| C．set our watch ahead | D．set our watch back or ahead |
If we travel east across the International Date Line on July 5th, the date becomes July .
| A．3rd | B．4th | C．5th | D．6th |
Which of the following sentences is true?
| A． If we travel around the world, we will get into trouble in telling the time. |
| B．If we travel west across the Atlantic Ocean, we will have twenty-three hours. |
| C． If we travel by ship across the Atlantic Ocean, we will cross the International Date Line. |
| D． If we travel across the Pacific Ocean, today becomes tomorrow. |
A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16℃.Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.
In the past hundred years, humans have begun destroying rainforests in search of three major resources (资源): land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.
There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’ s wood supply.
Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.Why did humans destroy rainforests in the past hundred years?
| A．They tried to get crops and paper |
| B．They needed other products |
| C．They wanted to raise farm animals |
| D．They aimed to get three major resources. |
Rainforests can help to adjust the climate because they________.
| A．reflect more heat into the atmosphere |
| B．bring about high rainfall throughout the world |
| C．rarely cause the temperature to drop lower than 16℃ |
| D．reduce the effect of heat from the sun on the earth |
What does the word “this” underlined in the third paragraph refer to?
| A．We will lose much more than we can gain. |
| B．Humans have begun destroying rainforests. |
| C．People have a strong desire for resources. |
| D．Much carbon dioxide comes from burning rainforests. |
It can be inferred from the text that________.
| A．we can get enough resources without rainforests |
| B．there is great medicine potential in rainforests |
| C．we will grow fewer kinds of crops in the gained land |
| D．the level of annual rainfall affects wind patterns |
What might be the best title for the text?
| A．How to Save Rainforests |
| B．How to Protect Nature |
| C．Rainforests and the Environment |
| D．Rainforests and Medical Development |
America is a mobile society. Friendships between Americans can be close and real, yet disappear soon if situations change. Neither side feels hurt by this. Both may exchange Christmas greetings for a year or two, perhaps a few letters for a while — then no more. If the same two people meet again by chance, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand, because friendships between us flower more slowly but then may become lifelong feelings, extending (延伸) sometimes deeply into both families. Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. They will enjoy welcoming us and be pleased if we accept their hospitality (好客) easily. Another difficult point for us Chinese to understand Americans is that although they include us warmly in their personal everyday lives, they don’t show their politeness to us if it requires a great deal of time. This is usually the opposite of the practice in our country where we may be generous with our time. Sometimes, we, as hosts, will appear at airports even in the middle of the night to meet a friend. We may take days off to act as guides to our foreign friends. The Americans, however, express their welcome usually at homes, but truly can not manage the time to do a great deal with a visitor outside their daily routine. They will probably expect us to get ourselves from the airport to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes, the welcome will be full, warm and real. We will find ourselves treated hospitably. For the Americans, it is often considered more friendly to invite a friend to their homes than to go to restaurants, except for purely business matters. So accept their hospitality at home! The writer of this passage must be ______.
| A．an American | B．a Chinese | C．a professor | D．a student |
Which of the following statements is TRUE according to the passage?
| A．Friendships between Americans usually extend deeply into their families. |
| B．Friendships between Americans usually last for all their lives. |
| C．Americans always show their warmth even if they are very busy. |
| D．Americans will continue their friendships again even after a long break. |
From the last two paragraphs we can learn that when we arrive in America to visit an American friend, we will probably be ______.
| A．warmly welcomed at the airport |
| B．offered a ride to his home |
| C．treated hospitably at his home |
| D．treated to dinner in a restaurant |
The underlined words “generous with our time” in Paragraph 3 probably mean ______.
| A．strict with time | B．serious with time |
| C．careful with time | D．willing to spend time |
A suitable title for this passage would probably be “______”.
| A．Friendships between Chinese |
| B．Friendships between Americans |
| C．Americans’ hospitality |
| D．Americans’ and Chinese’s views of friendships |
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