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    English now is also spoken as a foreign or (1)___ language in South Asia. For example, India has a
very large number of fluent English speakers because Britain ruled India from 1765 (2)___1947. English (3) (speak)______ in Singapore and Malaysia and some (4)______ in Africa such as South Africa too.
    During that time English became the language for government (5)_____ education. Today (6)_____
number of people learning English in China (7) (increase)__________ rapidly. In fact, China may have
the (8) (large)______ number of people (9) (learn)_______.Will Chinese English develop (10)_____
own identity ? Only time will tell.

閱讀理解

閱讀理解。

閱讀理解。

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
     Sharks are among the oldest animals on Earth.There are hundreds of kinds of sharks.Most are about
two meters long.The dogfish shark, however, is less than twenty centimeters in length.A shark has an
extremely good sense of smell.It can find small amounts of substances in water, such as blood, body
liquids and chemicals produced by animals.__1__ Sharks eat fish, other sharks, and plants that live in the
ocean.
     Sharks grow slowly.About forty percent of all sharks lay eggs.__2__Some sharks carry their young
inside their bodies as humans do.Some sharks are not able to reproduce until they are twenty years old.
Most reproduce only every two years.And they give birth to fewer than ten young sharks.For this reason, overfishing of sharks is of special danger to the future of the animal.
     Sharks are important for the world's oceans.They eat injured and diseased fish.Their hunting activities
mean that the numbers of other fish in ocean waters do not become too great.__3__
People hunt sharks for sport, food, medicine and their skin.Experts say the international market for some
kinds of sharks has increased because many parts of a shark are valuable.
     Collectors pay thousands of dollars for the jaws of a shark.__4__The skin of a shark can be used like
leather.
     In Asia, people enjoy a kind of soup made from shark fins.Experts say a fisherman can earn a lot of
money for even one kilogram of shark fins.Sharks are among the oldest animals on Earth, but some sharks are in danger of disappearing from Earth.__5__
A. Shark liver oil is a popular source of Vitamin A.
B. This protects the plants and other forms of life that exist in the oceans.
C. Sharks are valuable to us and we can make full use of them.
D. These powerful senses help sharks find their food.
E. If too many sharks in one area are killed, that group of sharks may never return to normal population
    levels.
F. They are a threat to other forms of life in the ocean.
G. The others give birth to live young.

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     Like distance runners on a measured course, all of us will move through time in a roughly predictable
pattern.
     In the first stage of our lives, we develop and grow, reaching toward the top of physical
vitality(energy). 
     After we grow up,however, the body begins a process of gradually wearing out.
     A new awareness of physical fitness may help lengthen our years of health and vitality, yet nothing we  
do will work to stop the unavoidable force of aging.
     Most of the changes of aging take place deep inside the body. The lungs become less able to take in
oxygen. Powerful muscles gradually lose their strength. The heart loses power and pumps less blood.Bones grow easier to break.
     Finally, we meet a stress,a stress that is greater than our physical resistance. Often it is only a minor  
accident or chance infection(a disease eaused by virus), but this time,it brings life to an end.
     In 1932, a classic experiment nearly doubled the lifetime of rats, simply by cutting back the
calories(unit for measuring the energy value of food)in their diet.The reason for the effect was then
unknown.
     Today, at the university of California at Berkley, Dr.Paul Seagle has also greatly lengthened the
normal lifetime of rats. The result was achieved through a special protein(蛋白質(zhì))limited diet, which
had a great effect on the chemistry of the brain. Seagle showed that within the brain, specific chemicals
control many of the signals that influence aging. By changing that chemical balance, the clock of aging
can be reset.
     For the first time, the mystery(something that is difficult to understand or to explain)of why our age
is being seriously challenged. Scientists in many fields are now making striking and farreaching
discoveries.
     An average lifetime lasts 75 years, yet in each of us lies a potential for a longer life. If we could keep 
the vitality and resistance to disease that we have at age twenty, we would live for 80 years.

1. What does the underlined word"it" refer to?

A. Physical vitality.        
B. Stress.
C. Aging.                
D. Physical resistance.

2. The author believes the following EXCEPT that ________.

A. human's life pattern is predictable
B. physical fitness can't stop the force of aging
C. human's lifetime will last longer than 75 years
D. all of the changes of aging take place deep inside the body

3. How did Dr.Paul Seagle lengthen the lifetime of rats in his experiment?
A. By limiting the protein in their diet.
B. By cutting the calories in their diet.
C. By resetting their clock of aging.
D. By keeping their physical fitness.

4. What is probably the best title for the article?

A. Two Great Experiments
B. The Mystery of Human Life
C. Ways to Lengthen Human Life
D. The Breakthrough in the Study of Aging

閱讀理解。

根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng).選項(xiàng)中有兩項(xiàng)為多余選項(xiàng).

閱讀理解。

                                                 Move Earth-it's no science fiction
     LONDON-Scientists have found an unusual way to prevent our planet from overheating:move it to
a cooler spot. All you have to do is send a few comets(彗星)in the direction of Earth, and its orbit will
be changed. Our world will then be sent spinning into a safer,c older part of the solar system.
     This idea for improving our climate comes from a group of US National Aeronautics and Space
Administration (NASA) engineers and American astronomers. They say their plan could add another
six billion years to the useful lifetime of our planet-effectively doubling its working life.
     The plan put forward by Dr. Laughlin, and his colleagues Don Korycansky and Fred Adams, needs
carefully directing a comet or asteroid so that it passes close by our planet and sends some of its
gravitational energy to Earth.
     "Earth's orbital speed would increase as a result and we would move to a higher orbit away from
the Sun,"Laughlin said.
     Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet
would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and
the process would be repeated.
     In the short term, the plan provides an ideal way to global warming,although the team was actually
concerned with a much greater danger. The sun is certain to heat up in about a billion years and so
"seriously compromise" our biosphere(生物圈)-by cooking us.
     That'  s why the group decided to try to save Earth.
     The plan has one or two worrying aspects, however. For a start,space engineers would have to
be very careful about how they directed their asteroid or comet towards Earth. The smallest
miscalculation(誤算)in orbit could fire it straight at Earth-with deadly consequences.
     There is also the question of the Moon. As the current issue of Scientific American magazine
points out,  if Earth was pushed out of its current position it is "most likely the Moon would be
stripped away from Earth," it states. This would greatly change our planet'  s climate.

1. What makes the scientists plan to move Earth?
A. A few comets are moving to the direction of Earth.
B. Earth'  s working life is coming to an end soon.
C. Earth will become too hot for mankind to keep alive.
D. The moon is moving farther and farther away from Earth.

2. If the plan is successful,Earth will have a working life of________years.

A. 12 billion  
B. 6 billion
C. 18 billion  
D. 24 billion

3. What serious problems might the plan cause according to the passage?

A. The comet might hit Earth and man might lose the moon.
B. Earth might be moved too far away and man might be frozen to death.
C. The comet might hit Jupiter or Saturn and never return to Earth.
D. Earth'  s working life might be greatly shortened.

4. What does the underlined word "compromise" mean?
A. provide  
B. benefit
C. share  
D. endanger