题目列表(包括答案和解析)
In the Caucasus region of the Soviet Union, nearly 50 out of every 100,000 people live to celebrate their 100th birthday, and many don’t stop at 100! By comparison, in America only 3 people in 100,000 reach 100. But these Soviet old people aren’t alone. The Pakistani Hunzas, who live high in the Himalaya Mountains, and the Vilacbambans of the Andes Mountains in Ecuador seem to share the secret of long too.
These peoples remain healthy in body and spirit despite the passage of time. While many older persons in industrial societies become weak and ill in their 60s and 70s, some Soviet Georgians, aged 110 to 140, work in the fields beside their great- great- grandchildren. Even the idea of aging is foreign to them. When asked, “At what age does youth end?”, most of these old people has no answer. Several replied, “Well, perhaps at age 80.” The very youngest estimate was age 60.
What accounts for this ability to survive to such old age, and to survive so well? First of all, hard physical work is a way of life for all of these long-lived peoples. They begin their long days of physical labor as children and never seem to stop. For example, Mr. Rustam Mamedov is 142 years of age. He remember his life experiences: the Grimean War of 1854; the Turkish War of 1878; the Bolshevik Revolution in 1917. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intentions of retiring from his life as a farmer. “Why? What else would I do?” he asks. Oh, he has slowed down a bit. Now he might quit for the day after 6 hours in the field instead of 10.
All these people get healthful rewards from the environment in which they work. They all come from mountainous regions. They live and work at elevations of 5,000 to 12,000 feet (1,660 to 4,000 meters) above sea level. The air has less oxygen and is pollutionfree. This reduced-oxygen environment makes the heart and blood vessel system stronger.
Another factor that may contribute to the good health of these people is their isolation. To a great extent, they are separated from the pressures and worried of industrial society.
Inherited factors also play some role. Most of the longest-lived people had parents and grandparents who also reached very old ages. Good family genes may, therefore, be one factor in living longer.
Finally, although these three groups don’t eat exactly the same foods, their diets are similar. The Hunzas, Vilacbambans, and Soviets eat little animal meat. Their diets are full of fresh fruits, vegetables, nuts, grains, cheese, and milk. They never eat more food than their bodies need.
It is clear that isolation from urban pressures and pollution, clean mountain air, daily hard work, moderate diets, good genes, and a youthful approach to life all contribute to the health and remarkable long life of all these people.
【小题1】 What kinds of things contribute to the remarkable long life of these peoples?
A.Moderate diets | B.Clean mountain air. |
C.Daily hard work. | D.All the above factors(因素). |
A.He is impressed with them | B.He doesn’t care. |
C.He doesn’t like them. | D.He admires them. |
A.have time to do what they want | B.being on time |
C.time going by | D.limited time |
A.An example of a typical long life among these people. |
B.An example of an unusual long life among these people. |
C.An explanation of why he is still healthy. |
D.An example of why his wife died early than him. |
A.Mr. Mamedov’s life. |
B.A description of several societies where people live a long time. |
C.Suggestions for how you can live long life. |
D.People are healthy in mountainous regions. |
Sitting on the peaceful coast of Galapagos Islands, Ecuador, watching the sun move quietly into the sea, you shouldn’t forget that Charles Darwin (1809-1882) arrived here in 1835. He stayed on the islands for five weeks, observing various animals. This finally inspired his famous work, On the Origin of Species. You can certainly follow Darwin’s footsteps and enjoy a trip from four to seven days to the islands.
The islands are certainly a paradise (天堂) for wildlife, as there are no natural killers on the islands and the number of boats and visitors is under government control. Though you cannot walk freely as Darwin did about 200 years ago, each day is as impressive as it could be.
The most well-known animals of the Galapagos is the giant tortoise,which can be seen moving slowly around Santa Cruz, the second largest island in the archipelago(群岛). Some of these creatures are so old that they might have been in their youth by Darwin himself.
Despite strict control over activities and timing, your stay on the Galapagos will be remembered as a chain of incomparable pictures; diving with sea lions that swim and play within inches of you; feeling small sharks touch your feet as you swim; and most magically, seeing a whale and her baby surface with a great breath of air.
Travelling between the islands and observing the wildlife that so inspired Darwin, you will feel as though you are getting a special view of an untouched world. At night you will sleep on board the ship, leaving the wildlife in complete occupation of the islands, which are as undisturbed now as they have been since the beginning of time.
What do we know about Darwin’s visit to the islands?
A. He studied different creatures on the islands
B. He completed his famous book on the islands
C. He was touched by the geography of the islands
D. He was attracted by well-known animals of the islands
Which of the following plays a role in making the islands “a paradise for wildlife”?
A. Animals on the islands feed on grass.
B. Local government forbids killing wildlife.
C. People cannot visit the islands as they wish.
D. Tourists are not allowed to touch the animals.
Your stay on the islands will be most impressive mainly because of .
A. the beautiful sea views B. Darwin’s inspiring trip
C. a closer view of animals D. various daring activities
How many kinds of animals are mentioned in this passage?
A. 2 B. 3 C. 4 D. 5
Which of the following would be the best title for the passage ?
A. A Unique Attraction for wildlife Lovers
B. Calapagos as a Paradise for Adventures
C. Charles Darwin as a symbol of Galapagos
D. A successful Example of wildlife protection
The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences. He is a professor at the Johns Hopkins Bloomberg School of Public Health in Maryland.
Professor Links says workers within the nuclear plant are the only people at risk of extremely high doses of radiation.
JONATHAN LINKS: "Of course, we don't know what doses they've received, but the only persons at risk of acute radiation effects are the workers."
For other people, he says, there may be a long-term worry. People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident.
Professor Links says scientists can use computers to quickly model where radioactive material has blown and settled. Then they measure how large an area is contaminated. He says if the situation is serious enough, officials could take steps like telling people not to eat locally grown food or drink the water.
JONATHAN LINKS: "But that would only be the case if there was a significant release and, because of wind direction, the radioactive material was blown over the area, and then settled out of the air into and onto water, plants, fruits and vegetables."
The reactors at Fukushima are on the Pacific coast. But Professor Links says people should not worry about any radioactive material leaking into the ocean.
JONATHAN LINKS: "Even in a worst-case scenario accident, the sea provides a very high degree of dilution. So the concentration of radioactivity in the seawater would still be quite low."
Japan is the only country to have had atomic bombs dropped on it. That memory from World War Two would create a stronger "psychological sensitivity" to radiation exposure, Professors Links says.
Next month is the twenty-fifth anniversary of the explosion and fire that destroyed a reactor at Chernobyl in Ukraine. The nineteen eighty-six event was the world's worst accident in the nuclear power industry.
A new United Nations report says more than six thousand cases of thyroid cancer have been found. These are in people who were children in affected areas of Belarus, Russia and Ukraine. The report says that by two thousand five the cancers had resulted in fifteen deaths.
The cancers were largely caused by drinking contaminated milk. The milk came from cows that ate grass where radioactive material had fallen.
To get the latest updates, go to www.unsv.com.
Contributing: James Brooke
【小题1】The passage mainly tells us __________.
A.What measures the Japan Government takes to solve the nuclear crisis . |
B.Worries and influences caused by the nuclear crisis . |
C.With great efforts of scientists , the Japan Government has put the nuclear crisis under control . |
D.To explain that the nuclear crisis has less effect on its neighboring countries. |
A.Workers at the nuclear station are suffering the risk of death . |
B.People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident. |
C.The radioactive material may be blown over the area causing the pollution to water . |
D.The concentration of radioactivity in the seawater can not be diluted. |
A.chemical | B.salt | C.dissolution | D.elimination |
A.Water people drink ,food and vegetables people eat may be polluted by nuclear radiation . |
B.Japan is the only country to have had atomic bombs dropped on it. |
C.You can go to www.unsv.com. to get the latest news . |
D.The nuclear accident in Japan is the worst in the nuclear power industry. |
The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences. He is a professor at the Johns Hopkins Bloomberg School of Public Health in Maryland.
Professor Links says workers within the nuclear plant are the only people at risk of extremely high doses of radiation.
JONATHAN LINKS: "Of course, we don't know what doses they've received, but the only persons at risk of acute radiation effects are the workers."
For other people, he says, there may be a long-term worry. People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident.
Professor Links says scientists can use computers to quickly model where radioactive material has blown and settled. Then they measure how large an area is contaminated. He says if the situation is serious enough, officials could take steps like telling people not to eat locally grown food or drink the water.
JONATHAN LINKS: "But that would only be the case if there was a significant release and, because of wind direction, the radioactive material was blown over the area, and then settled out of the air into and onto water, plants, fruits and vegetables."
The reactors at Fukushima are on the Pacific coast. But Professor Links says people should not worry about any radioactive material leaking into the ocean.
JONATHAN LINKS: "Even in a worst-case scenario accident, the sea provides a very high degree of dilution. So the concentration of radioactivity in the seawater would still be quite low."
Japan is the only country to have had atomic bombs dropped on it. That memory from World War Two would create a stronger "psychological sensitivity" to radiation exposure, Professors Links says.
Next month is the twenty-fifth anniversary of the explosion and fire that destroyed a reactor at Chernobyl in Ukraine. The nineteen eighty-six event was the world's worst accident in the nuclear power industry.
A new United Nations report says more than six thousand cases of thyroid cancer have been found. These are in people who were children in affected areas of Belarus, Russia and Ukraine. The report says that by two thousand five the cancers had resulted in fifteen deaths.
The cancers were largely caused by drinking contaminated milk. The milk came from cows that ate grass where radioactive material had fallen.
To get the latest updates, go to www.unsv.com.
Contributing: James Brooke
1.The passage mainly tells us __________.
A.What measures the Japan Government takes to solve the nuclear crisis . |
B.Worries and influences caused by the nuclear crisis . |
C.With great efforts of scientists , the Japan Government has put the nuclear crisis under control . |
D.To explain that the nuclear crisis has less effect on its neighboring countries. |
2.Which of the following is NOT the influences caused by the leak of Fukushima Dai-Ichi Nuclear Power Station?
A.Workers at the nuclear station are suffering the risk of death . |
B.People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident. |
C.The radioactive material may be blown over the area causing the pollution to water . |
D.The concentration of radioactivity in the seawater can not be diluted. |
3.What’s the meaning of the underlined word “dilution”?
A.chemical |
B.salt |
C.dissolution |
D.elimination |
4.According to the passage which of the following is not TRUE ?
A.Water people drink ,food and vegetables people eat may be polluted by nuclear radiation . |
B.Japan is the only country to have had atomic bombs dropped on it. |
C.You can go to www.unsv.com. to get the latest news . |
D.The nuclear accident in Japan is the worst in the nuclear power industry. |
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