C
With alarming regularity, we read about oil tankers having accidents near land and the terrible consequences of the oil spills （泄露） on people, nature, and the environment．
Millions of dollars have been used in developing special chemicals to help dismiss the spills and to clean up the animals, beaches, and land spoiled by the oil．Unfortunately, when many of these chemicals are used, more damage is caused to the environment, especially to lives in the sea．
Of all of today's environmental disasters, an oil spill may actually be one of the least serious．Although oil is poisonous, it is a natural material．In the end, it breaks down naturally．There are, of course, long-term effects, but it is usually more serious in the short term．
Nature by itself works better than chemical materials, but when there is a spill we demand that governments act immediately with as much hi-tech knowledge as possible．In 1967 the tanker Torrey Canyon sank off the Scilly Isles near the coast of England and spilled 120,000 tones of oil into the ocean．If you go there today, you will find it hard to see any sign that it ever happened．
Governments seem to accept the risk of transporting millions of tons of oil by ship every day so that we can fill up our cars and drive around and cause even more environmental damage．Interestingly, the biggest companies in the world produce cars, and the next biggest supply the gasoline to make them run I
We should be thinking more about reducing our dependency on oil．Governments should be encouraging research into new technologies, such as cars run by solar power （太阳能） , electricity, hydrogen, and so on．Much of this research has, in the past, been held back by the oil, gas, and coal．
If the world's millions of cars were 10% more efficient （高效的）—and the industry could easily produce cars at least twice as efficient ?we would need many fewer tankers crossing the oceans each year．If this happened, the risks of oil spills would be reduced, and the air we breathe would be cleaner and fresher, too．
63．What is the passage mainly talking about?
A．Oil spills pollution．    B．What oil pollution is．
C．Oil tanker accidents.             D．How to reduce oil pollution.
64．How does the author support the idea that oil spills are not as serious as people believe?
A．By giving a description．   B．By making an argument．
C．By giving an example．          D．By drawing a diagram．
65．What does the underlined word "risk" in Paragraph 5 refer to?
A．Transportation depending more on oil．
B．Poisonous oil breaking down naturally．
C．Millions of tons of oil spilling into the sea．
D．More environmental damage being caused．
66．Which suggestion, is made for reducing oil tank accidents according to the passage?
A．We should build safer tankers in the near future．
B．We should develop new technologies to cut oil use．
C．Tankers should not be allowed to sail near the coastlines．
D．Countries should build more oil pipelines under the sea．

C

       With alarming regularity, we read about oil tankers having accidents near land and the terrible consequences of the oil spills （泄露） on people, nature, and the environment．

       Millions of dollars have been used in developing special chemicals to help dismiss the spills and to clean up the animals, beaches, and land spoiled by the oil．Unfortunately, when many of these chemicals are used, more damage is caused to the environment, especially to lives in the sea．

       Of all of today's environmental disasters, an oil spill may actually be one of the least serious．Although oil is poisonous, it is a natural material．In the end, it breaks down naturally．There are, of course, long-term effects, but it is usually more serious in the short term．

       Nature by itself works better than chemical materials, but when there is a spill we demand that governments act immediately with as much hi-tech knowledge as possible．In 1967 the tanker Torrey Canyon sank off the Scilly Isles near the coast of England and spilled 120,000 tones of oil into the ocean．If you go there today, you will find it hard to see any sign that it ever happened．

       Governments seem to accept the risk of transporting millions of tons of oil by ship every day so that we can fill up our cars and drive around and cause even more environmental damage．Interestingly, the biggest companies in the world produce cars, and the next biggest supply the gasoline to make them run I

       We should be thinking more about reducing our dependency on oil．Governments should be encouraging research into new technologies, such as cars run by solar power （太阳能） , electricity, hydrogen, and so on．Much of this research has, in the past, been held back by the oil, gas, and coal．

       If the world's millions of cars were 10% more efficient （高效的）—and the industry could easily produce cars at least twice as efficient ?we would need many fewer tankers crossing the oceans each year．If this happened, the risks of oil spills would be reduced, and the air we breathe would be cleaner and fresher, too．

63．What is the passage mainly talking about?

       A．Oil spills pollution．     B．What oil pollution is．

       C．Oil tanker accidents.              D．How to reduce oil pollution.

64．How does the author support the idea that oil spills are not as serious as people believe?

       A．By giving a description．   B．By making an argument．

       C．By giving an example．           D．By drawing a diagram．

65．What does the underlined word "risk" in Paragraph 5 refer to?

       A．Transportation depending more on oil．

       B．Poisonous oil breaking down naturally．

       C．Millions of tons of oil spilling into the sea．

       D．More environmental damage being caused．

66．Which suggestion, is made for reducing oil tank accidents according to the passage?

       A．We should build safer tankers in the near future．

       B．We should develop new technologies to cut oil use．

       C．Tankers should not be allowed to sail near the coastlines．

       D．Countries should build more oil pipelines under the sea．

Glaucoma（青光眼）is a major cause of blindness around the world, especially in developing countries. The World Health Organization says glaucoma is a greater public health challenge than cataracts（白内障）, because the blindness caused by the latter can be cured after operations.

Glaucoma is a disease that makes people around the world lose their sight, and they usually don’t even know they have the disease until it has permanently destroyed at least 40 percent of their sight. The process is usually so painless and subtle（不明显的）, so people don't notice it. Actually, the simplest medical test can discover it.

“It is the leading cause of blindness in the United States. In Hispanics and in African-Americans, it’s the second leading cause of blindness and so is the case in the Chinese and Indians.” said Dr. Alan Robin, a specialist in treating glaucoma. “The glaucoma we see in sub-Saharan Africa is a much more aggressive blinding disease than the glaucoma we see in Americans or even African- Americans in-the United States.” he said．     ．

Dr. Eric Fleischer also sees these differences at Medstar Washington Hospital Center. “Pretty much anybody who has ancestors in Africa has an increased chance of developing glaucoma.” Age is another thing that may lead to glaucoma, although people of all ages can get it.

Glaucoma is a group of diseases that commonly produce pressure in the eye. An eye is sort of like a watch. And behind the face of the watch, liquid is made. It goes through your pupil（瞳孔）and into the front of the watch between the face and the crystal．There's an area around the edge of the watch that drains（使排出）the liquid. When that drain is blocked, the liquid can't leave the eye as fast as it is produced. The rising pressure within the eye damages and eventually kills the optic（视觉的） nerve. The result is blindness.

Fortunately, if caught early, glaucoma can be controlled. Glaucoma is not curable. But as  researchers worldwide lean more about it, they grow more hopeful that glaucoma can one day be cured or even prevented.

1.In which country is glaucoma the biggest danger to people’s sight?

A．In China           B．In India           C．In the USA         D．In Japan

2.What do the underlined words “these differences”（in Para 4 ）refer to?

A．The differences in regions（地区）         B．The cultural differences

C．The differences in age                    D．The physical differences

3.From the passage, we can learn that,            .

A．It is hard for medical tests to discover glaucoma

B．People in developed countries hardly develop glaucoma

C．Glaucoma only causes blindness among old people

D．The research on glaucoma is still going on worldwide

Glaucoma（青光眼）is a major cause of blindness around the world, especially in developing countries. The World Health Organization says glaucoma is a greater public health challenge than cataracts（白内障）, because the blindness caused by the latter can be cured after operations.

Glaucoma is a disease that makes people around the world lose their sight, and they usually don’t even know they have the disease until it has permanently destroyed at least 40 percent of their sight. The process is usually so painless and subtle（不明显的）, so people don't notice it. Actually, the simplest medical test can discover it.

“It is the leading cause of blindness in the United States. In Hispanics and in African-Americans, it’s the second leading cause of blindness and so is the case in the Chinese and Indians.” said Dr. Alan Robin, a specialist in treating glaucoma. “The glaucoma we see in sub-Saharan Africa is a much more aggressive blinding disease than the glaucoma we see in Americans or even African- Americans in-the United States.” he said．　　 ．

Dr. Eric Fleischer also sees these differences at Medstar Washington Hospital Center. “Pretty much anybody who has ancestors in Africa has an increased chance of developing glaucoma.” Age is another thing that may lead to glaucoma, although people of all ages can get it.

Glaucoma is a group of diseases that commonly produce pressure in the eye. An eye is sort of like a watch. And behind the face of the watch, liquid is made. It goes through your pupil（瞳孔）and into the front of the watch between the face and the crystal．There's an area around the edge of the watch that drains（使排出）the liquid. When that drain is blocked, the liquid can't leave the eye as fast as it is produced. The rising pressure within the eye damages and eventually kills the optic（视觉的） nerve. The result is blindness.

Fortunately, if caught early, glaucoma can be controlled. Glaucoma is not curable. But as researchers worldwide lean more about it, they grow more hopeful that glaucoma can one day be cured or even prevented.

68. In which country is glaucoma the biggest danger to people’s sight?

A. In China　　 B. In India　　 C. In the USA 　　 D. In Japan

69. What do the underlined words “these differences”（in Para 4 ）refer to?

　　　 A. The differences in regions（地区）　　 B. The cultural differences

　　　 C. The differences in age　　　　　　 D. The physical differences

70. From the passage, we can learn that,　　　　　 .

　　　 A. It is hard for medical tests to discover glaucoma

　　　 B. People in developed countries hardly develop glaucoma

　　　 C. Glaucoma only causes blindness among old people

　　　 D. The research on glaucoma is still going on worldwide

June 26, 2000 — the Human Genome(基因组) Project, a great $3 billion, 15-year task aimed at drawing the genetic(遗传的) map of humans, is now more than 90 percent completed. The scientific and medical communities are very excited about the chances genetic research provides for getting rid of diseases and prolonging human life. But those communities and policy  makers also are careful about the scientific door they are opening as the project uncovers the mysteries of life.

For the last few years, the genetic advances in the developing field of biotechnology have provides material for all kinds of work, but the developments of modern science in unlocking the secrets of the human genetic code(密码) have opened a world of possibilities for human health, as well as for the popular imagination.

While European and Japanese researchers are making rapid progress in decoding(解码) human DNA, the leading organization for genetic research is in the United States, which began in 1990, is “unlocking the code” of the human body to learn how to defeat fatal diseases. Already, the Human Genome Project has become widely known and praised for finding the genes(基因) connected with terrible diseases as yet, and making progress toward separating the genes that show a sign of breast cancer or AIDS.

Once these genes are found and studied, researchers can develop new ways to attack infections(传染), and genetic diseases. Medical companies are very interested in mapping the human genome, as they expect to develop a lot of new drugs for these illnesses.

1.Why did the scientists work hard at mapping the human genome?

A. Because the human genome can destroy many illnesses.

B. Because the human genome's completion can help them get rid of many diseases.

C. Because they wanted to be better known than others.

D. Because the human genome can provide a lot of chances of work.

2.Which of the following is NOT true?

A.If the genes can be found, scientists can study many new ways to cure illnesses.

B.The scientists have made great progress in connecting the genes with the cancers.

C. Many medical companies show great interest in drawing the human genome map.

D. The United States began the Genes Study early in the 19th century.

3.The author suggests that the Human Genome Project can cause _______.

A. the policy makers to feel very worried and careful

B. the scientists to work harder.

C. many people to find work easily.

D. a lot of companies to produce many new drugs.

4.The main idea of this article is about _______.

A. unlocking genetic code           B. the genes' discovery

C. the great human genome           D. the genes and the scientists