by the growing interest in nature.more and more people enjoy outdoor sports. A．Influenced B．Influencing C．Having influenced D．To be influenced 题目和参考答案——青夏教育精英家教网—

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World Health Report 2002

The life expectancy (平均寿命) of people around the world could increase by five to ten years if action against common health risks (冒险，风险) is taken．This is one of the findings in this year’s World Health Report released (发布) recently by the World Health Organization．The report is called “Reducing Risks，Promoting (促进) Life”．

Researchers found that ten major threats to good health are common around the world．The chief of the World Health Organization，Gro Harlem Brundtland，called them the ten leading killers．They include unsafe sex，poor nutrition (营养)，high blood pressure，use of tobacco and alcohol，unsafe water and unclean living conditions．Also included are high levels of dangerous fat in the blood，indoor smoke from solid fuels，a lack of iron in the body and too much body weight，or obesity (肥胖)．Together，these ten health risks make up forty percent of the fifty-six million deaths worldwide each year．

Doctor Brundtland called for reducing the ten main health risks by twenty-five percent within ten years．If this were done，life expectancy in industrial countries could increase by ten years．In developing countries，it could increase by five years．

Currently (通常地)，the number of life years lost because these health risks differ around the world．Doctor Brundtland says the differences these health risks create between rich and poor nations are shocking (骇人听闻的)．For example，about one-hundred-seventy-million children in poor countries are underweight. They do not weigh enough because they do not get enough food. However, more than one thousand millionお adults around the world are too fat. These people are mostly in rich, industrial countries.

Doctor Brundtland warns that the cost of inaction is serious. For example, she says nine million deaths a year linked to smoking will be reported by two-thousand–twenty if steps are not taken soon. Currently, about five millionお people die each year from diseases related to smoking.

Doctor Brundtland says that AIDS (艾滋病) and the HIV virus (艾滋病病毒) are having a huge effect on the length of life in Africa. Currently, life expectancy at birth in southern Africa is forty-seven years. The WHO estimates (估计) that ninety-five percent of HIV infections (感染) in Africa were caused by unsafe sex. She says there is an urgent need for sex education and the use of condom devices (孕器具) to prevent the spread of HIV.

Judge the following sentences true (T) or false (F).

1.It is certain that life expectancy of people around the world could increase by five to ten years in future.

1.　　 Most of the deaths worldwide each year are due to (由于) the ten leading killers such as unsafe sex, poor nutrition, high blood pressure and so on.

3.From the passage, we can infer that so far people haven’t dealt with smoking effectively.

4.The length of life in Africa is affected most by AIDS.

阅读理解

World Health Report 2002

The life expectancy (平均寿命) of people around the world could increase by five to ten years if action against common health risks (冒险，风险) is taken．This is one of the findings in this year’s World Health Report released (发布) recently by the World Health Organization．The report is called “Reducing Risks，Promoting (促进) Life”．

Researchers found that ten major threats to good health are common around the world．The chief of the World Health Organization，Gro Harlem Brundtland，called them the ten leading killers．They include unsafe sex，poor nutrition (营养)，high blood pressure，use of tobacco and alcohol，unsafe water and unclean living conditions．Also included are high levels of dangerous fat in the blood，indoor smoke from solid fuels，a lack of iron in the body and too much body weight，or obesity (肥胖)．Together，these ten health risks make up forty percent of the fifty-six million deaths worldwide each year．

Doctor Brundtland called for reducing the ten main health risks by twenty-five percent within ten years．If this were done，life expectancy in industrial countries could increase by ten years．In developing countries，it could increase by five years．

Currently (通常地)，the number of life years lost because these health risks differ around the world．Doctor Brundtland says the differences these health risks create between rich and poor nations are shocking (骇人听闻的)．For example，about one-hundred-seventy-million children in poor countries are underweight. They do not weigh enough because they do not get enough food. However, more than one thousand millionお adults around the world are too fat. These people are mostly in rich, industrial countries.

Doctor Brundtland warns that the cost of inaction is serious. For e\xample, she says nine million deaths a year linked to smoking will be reported by two-thousand–twenty if steps are not taken soon. Currently, about five millionお people die each year from diseases related to smoking.

Doctor Brundtland says that AIDS (艾滋病) and the HIV virus (艾滋病病毒) are having a huge effect on the length of life in Africa. Currently, life expectancy at birth in southern Africa is forty-seven years. The WHO estimates (估计) that ninety-five percent of HIV infections (感染) in Africa were caused by unsafe sex. She says there is an urgent need for sex education and the use of condom devices (孕器具) to prevent the spread of HIV.

Judge the following sentences true (T) or false (F).

1.It is certain that life expectancy of people around the world could increase by five to ten years in future.

1.　　 Most of the deaths worldwide each year are due to (由于) the ten leading killers such as unsafe sex, poor nutrition, high blood pressure and so on.

3.From the passage, we can infer that so far people haven’t dealt with smoking effectively.

4.The length of life in Africa is affected most by AIDS.

阅读理解

　　The country of Chile is struggling to recover from one of the most powerful earthquakes in history．The quake struck the South American nation early Saturday morning．It registered 8．8 on the Richter scale．Ex-perts say the earthquake in Chile is among the five most powerful earthquakes ever recorded．

　　The epicenter of the earthquake is about 70 miles north of the city of Concepci6n．The area has been rocked by dozens of aftershocks since the big quake hit on Saturday morning．

　　On Sunday, Chilean President Michelle Bachelet updated reports on the toll the earthquake has taken．“It’s an enormous catastrophe,” she said．Countless buildings and roadways have been destroyed or badly damaged．Rescuers continued to work around the clock to find survivors who may be trapped under the rub-ble of fallen buildings．Government officials estimate more than 2 million people have lost their homes．

　　Bachelet assured people that food and medical aid were on the way．Ten thousand members of the Chil-ean military have been dispatched to help in the relief and recovery efforts．Many of the country’s major gro-cery stores have started giving away basic food and supplies to people in the affected areas．Secretary-Gener-al of the United Nations spoke to President Bachelet by telephone．He assured her that the United Nations“stands ready to assist the Chilean government’s rescue and recovery efforts ”．

　　The earthquake in Chile comes less than two months after the 7．0 magnitude earthquake that Haiti suf-fered in January．Although the earthquake in Chile was more powerful than the one in Haiti，the damage is unlikely to be as severe．Earthquakes are more common in Chile，and many buildings and homes there are constructed to withstand tremors better．Also，the area of Chile most affected by this earthquake is not asheavily populated as Port-au-Prince, where the epicenter of the Haitian quake was located．Furthermore, Chile is one of South America’s richest, best-organized countries．Its government has more supplies and people available to effectively respond to national emergencies．

　　The energy released by the quake caused shock waves to roll across the Pacific Ocean in the form of tsu-namis(海啸)that have the potential to do great damage to coastal areas．Some of these waves struck the Chilean coast，causing major damage to seaside towns．Coastal communities in Russia，Japan，and the Unit-ed States were concerned，too，but there were no reports of severe damage from the waves that eventually reached the countries’shores．

(1)

Who is leading the earthquake relief efforts in Chile?
[　　]
A．	The Chilean government and military．
B．	Geologists and other scientists．
C．	The United Nations peacekeeping forces．
D．	Secretary-General of the United Nations．

(2)

The damage from Chile’s earthquake is not expected to be as severe as the damage from Haiti’s quake．Which could not be the reason for it?
[　　]
A．	Chile is one of the richest，best-organized countries in South America．
B．	Chile has constructed many buildings for the people．
C．	Chile knows how to respond to a national emergency．
D．	The epicenter area of the Chile earthquake is less heavily populated than that of the Haiti’s quake．

(3)

One result of the earthquake in Chile was ________．
[　　]
A．	severe storms in Russia and Japan
B．	massive waves in the pacific Ocean
C．	a lack of food supplies in coastal communities
D．	a social confusion across the globe

(4)

What’s the best title for this news report?
[　　]
A．	Major Earthquake Hits Chile
B．	The Most Powerful Earthquake in History
C．	Rescue and Recovery Efforts
D．	Face to Face with the Natural Disaster

When older honeybees take on tasks usually handled by younger bees, aging of their brains is effectively

changed, a new study finds. The discovery suggests that in humans, social involvement ought to be considered

in addition to drugs as a way to treat age-related dementia(痴呆).

“We knew from previous research that when bees stay in the nest and take care of larvae—the bee

babies---they remain mentally able as long as we observe them,” explained Gro Amdam, who led the research

at Arizona State University. “However, after a period of nursing, bees fly out gathering food and begin aging

very quickly.”

“After just two weeks, foraging(觅食的)bees have worn wings, hairless bodies, and more importantly,

lose the brain function—-basically measured as the ability to learn new things,” Amdam said in a statement.

Amdam and his colleagues wanted to find out what would happen if they “asked” the foraging bees to

take care of larval babies again. To find out, they removed younger nurse bees from a nest, leaving the older

foraging bees to face a choice: forage or care for the larvae. Some of the older returned to searching for food,

and others switched to caring for the nest and larvae. After ten days, about fifty percent of the older bees that

had chosen to care for the nest and larvae had “greatly improved their ability to learn new things.”

The researchers also discovered changes in the proteins in the brains of the bees whose learning ability had

improved. One of the proteins that changed, called Prx6, is also found in humans and is known to help protect

against dementia.

“Maybe social involvement is something we can do today to help our brains stay younger,” Amdam says.

“Since the proteins being researched in people are the same proteins bees have, these proteins may be able to

respond to specific social experiences.”

Other studies have shown several non-drug methods can help improve brainpower in older people,

including going for walks and taking music lessons.

The findings, announced this week, are detailed in the journal Experimental Gerontology.

81．What does the underlined word “they” in Paragraph 4 refer to? （No more than 5 words）

82．When do the brains of older bees age very fast? （No more than 9 words）

83．What is Amdam’s suggestion for old people to prevent dementia? （No more than 6 words）

84．What is the best title for the text? （No more than 6 words）

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