Which sea region is the riches fishing in the world?________

In the Caucasus region of Russia, 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 Russian old people aren’t alone. The Pakistanis, who live high in the Himalaya Mountains, and the Ecuadorans of the Andes Mountains seem to share the secret of long life, too.
These people 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 Caucasians aged 100 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 had no answer. Several replied, “Well, perhaps at age 80.”
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 people. 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. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intention of retiring from his life as a farmer. “Why？What else would I do？”he asks. 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 1,660 to 1,000 meters above sea level. The air has less oxygen and is pollution-free. This reduced-oxygen environment makes the heart and blood vessel(血管) 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 worries 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.
小题1:The example of Mr. and Mrs. Mamedov implies that some Caucasians aged 100 to 140 ____.

A．become weak and hopeless

B．are too old to work in the fields

C．benefit from physical work

D．are still working in the fields

小题2:What is the main way of life for all of these long-lived people?

A．Retiring from their lives as farmers.

B．Having been married for 90 years.

C．Hard physical work.

D．Having no intentions.

小题3:Which of the following factors isn’t helpful to people’s health and long life?

A．Clean mountain air.	B．Daily hard work.
C．Good genes	D．Stress and pressure.

in the caucasus region of the soviet union, nearly 50 out of every 100,000 people live to celebrate their 100 ^th 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 *** 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 ext ent, 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）.

小题2: how do you think the author feels about these long-lived people?

a．he is impressed with them	b．he doesn’t care.
c．he doesn’t like them.	d．he admires them.

小题3:according to the passage, the phrase “the passage of time” means .

a．have time to do what they want	b．being on time
c．time going by	d．limited time

小题4:in the passage, why does the author describe mr. mamedov?

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.

小题5:what is the main subject of this article?

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.

Crossing Texas and Mexico, the Big Bend region is high in biodiversity(生物的多样性). It’s a place so untamed that if something doesn’t bite, stick, or sting, it’s probably a rock.
You know you have arrived in the heart of the Chihuahuan Desert when it feels as if you have fallen off the edge of the earth and into the rabbit hole. Nothing is as it appears. Moths (蛀虫) are the size of birds. Are those twin pillars (柱) of black rock (a landmark known as Mule Ear Peaks) ten miles (16 kilometers) away or fifty (80 kilometers)? Visibility (能见度) reaches more than a hundred miles on a clear day, and since there are few roads or buildings to use as milestones, distance is difficult to judge.
This is a place where water runs uphill, where rainbows have to wait for rain. The line between myth (虚构的故事) and reality is unclear. Stare long enough at the Chisos Mountains or the Sierra del Carmen, the two mountain ranges, known as sky islands, which lie on the land, and they rise and float above the plain.
The vast Chihuahuan Desert is a land of no people. There is always the chance you’ll die of thirst. The “You Can Die”possibilities are endless, and keep some visitors — 350,000 a year to Big Bend National Park, built in 1944 — from coming back. Those who do return are left to think of the remarkable courage of the brave few who have managed to survive in this terrible environment.
小题1:The underlined word“untamed”in Paragraph 1 means“________”.

A．untouched

B．wild

C．unchanged

D．fresh

小题2:Why do the twin pillars of black rock seem ten or fifty miles away?

A．They were put so far away.

B．They lie across the Chihuahuan Desert.

C．It is difficult to judge the distance, with few milestones.

D．One lies in the Chisos Mountains, the other in the Sierra del Carmen.

小题3:How many years are there since the Big Bend National Park was built?

A．350,000 years.

B．350 years.

C．66 years.

D．44 years.

小题4:What is the passage mainly about?

A．The natural wonders of the Chihuahuan Desert.

B．Everything you see is not what it seems in the Chihuahuan Desert.

C．The terrible environment of deserts in Texas and Mexico.

D．A special place where none who go can return.

小题5:What can we learn from the last paragraph?

A．There are all kinds of living things in the Chihuahuan Desert.

B．No people live in the Big Bend region.

C．Nothing is as it appears in the Big Bend region.

D．Traveling in the Big Bend region is dangerous.