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文学
单选题
单选题______ shipment, please amend the L/C to allow transshipment. A.Regarding to B.Covering to C.Concerning D.Referring
单选题{{B}}Passage Two{{/B}}
Sea horses are unusual parents. The
female sea horses lay the eggs, but unlike other creatures, it's the males that
give birth to the young. Male sea horses have a fold of skin on
their bellies that forms pocket, called a brood pouch. During the breeding
season, the sea horse's pouch swells to receive eggs. A female sea horse lays up
to 200 eggs at a time in the pouch. Then she swims off, leaving her male partner
to care for the developing eggs and give birth to young sea horses. The female
will return everyday to check on her mate and the eggs, but she doesn't stay
long, nor does she take part in the birth. It takes from two to
six weeks for the eggs in the male's pouch to develop. During this time the male
avoids open water and hides in sea grass. His big pouch makes it difficult for
him to swim, so the male often uses his tail to grasp a piece of sea grass.
Firmly gripping the grass, he will stay perfectly still for hours or even days.
The male sea horse will change his color to blend with his surroundings and
avoid being seen by predators who will try to eat him or poke holes in his pouch
to get the eggs. The eggs hatch inside the male's pouch. When
the babies begin moving around, the male sea horse knows it's time for them to
be born. He grabs a sea grass stem with his tail and begins rocking, bending,
and stretching his body so that the rest of the babies can be born. Sometimes he
has to press his pouch against a rock Or some stiff seaweed to force the young
out. Sea horse babies are born in groups of five or more.
Sometimes it takes two days for the father sea horse to give birth to all his
young. He is very tired when it's over. Soon after giving birth
to one brood, the male will approach his mate and show her his empty pouch. This
tells her he is ready to receive eggs again.
单选题The water we drink and use is running short in the world. We all have to learn how to stop wasting our limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done in this field.
Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying factory. There it can be filtered and treated with chemicals so that it can be used again, just as it were fresh from a spring.
But even if every large city purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we"d have to do to make use of the seawater on earth is to get rid of the salt. This process is called desalinization, and it is already in use in many parts of the world.
单选题{{B}}Text 3{{/B}}
A very important world problem, if not
the most serious of all the great world problems which affect us at the moment,
is the increasing number of people who actually inhabit this planet. The limited
amount of land and land resources will soon be unable to support the huge
population if it continues to grow at its present rate. In an
early survey conducted in 1888, a billion and a half people inhabited the earth.
Now, the population exceeds five billion and is growing fast—by the staggering
figure of 90 million in 1988 alone. This means that the world must accommodate a
new population roughly equal to that of the United States and Canada every three
years! Even though the rate of growth has begun to slow down, most experts
believe the population size will still pass eight billion during the next 50
years. So why is this huge increase in population taking place?
It is really due to the spread of the knowledge and practice of what is becoming
known as "Death Control". You have no doubt heard of the term "Birth Control"—"
Death Control" is something rather different. It recognizes the work of the
doctors and scientists who now keep alive people who, not very long ago, would
have died of a variety of then incurable diseases. Through a wide variety of
technological innovations that include farming methods and sanitation, as well
as the control of these deadly diseases, we have found ways to reduce the rate
at which we die—creating a population explosion. We used to think that reaching
seventy years old was a remarkable achievement, but now eighty or even ninety is
becoming recognized as the normal life-span for humans. In a sense, this
represents a tremendous achievement for our species. Biologically this is the
very definition of success and we have undoubtedly become the dominant animal on
the planet. However, this success is the very cause of the greatest threat to
mankind. Man is constantly destroying the very resources which
keep him alive. He is destroying the balance of nature which regulates climate
and the atmosphere, produces and maintains healthy soils, provides food from the
seas, etc. In short, by only considering our needs of today we are ensuring
there will be no tomorrow. An understanding of man's effect on
the balance of nature is crucial to be able to find the appropriate remedial
action. It is a very common belief that the problems of the population explosion
are caused mainly by poor people living in poor countries who do not know enough
to limit their reproduction. This is not true. The actual number of people in an
area is not as important as the effect they have on nature. Developing countries
do have an effect on their environment, but it is the populations of richer
countries that have a far greater impact on the earth as a whole.
The birth of a baby in, for example, Japan, imposes more than a hundred
times the amount of stress on the world's resources as a baby in India. Most
people in India do not grow up to own cars or air-conditioners—nor do they eat
the huge amount of meat and fish that the Japanese child does. Their life-styles
do not require vast quantities of minerals and energy. Also, they are aware of
the requirements of the land around them and try to put something back into
nature to replace what they take out. For example, tropical
forests are known to be essential to the balance of nature yet we are destroying
them at an incredible rate. They are being cleared not to benefit the natives of
that country, but to satisfy the needs of richer countries. Central American
forests are being destroyed for pastureland to make pet food in the United
States cheaper; in Papua New Guinea, forests are destroyed to supply cheaper
cardboard packaging for Japanese electronic products; in Burma and Thailand,
forests have been destroyed to produce more attractive furniture in Singapore
and Japan. Therefore, a rich person living thousands of miles away may cause
more tropical forest destruction than a poor person living in the forest
itself. In short then, it is everybody's duty to safeguard the future
of mankind-not only through population control, but by being more aware of the
effect his actions have on nature. Nature is both fragile and powerful. It is
very easily destroyed; on the other hand, it can so easily destroy its most
aggressive enemy—man.
单选题
单选题On the grounds of Wimbledon, a year-round museum is devoted to the joys and history of the sport—and one of their current exhibits showcases Ted Tinling, the popular and
controversial
designer of tennis dresses.
单选题With the Met Office predicting a summer heatwave, Macmillan Cancer Relief this week (1) its customary warning about the sun's ultravioiet rays: (2) , it says, for the huge rise in skin cancers affecting 70,000 people a year. (3) a hat and long-sleeved shirt, it advises, keep in the (4) in the middle of the day, and slap (5) suncream with a protection factor of 15 or above. We all know it (6) ; it's the message that's been drummed into us for the past 20 years. Too much sun (7) . But now there's a fly in the suntan lotion, complicating the message's clarity. It comes (8) a thin, quietly-spoken and officially retired Nasa scientist, Professor William Grant, who says that sun doesn't kill; in act, it does us the world of (9) . What's killing us, he says, is our (10) with protecting ourselves from skin cancer. Grant is trying to turn the scientific world (11) down. Talking to me on a trip to Britain this week, he (12) his startling--and at first appearance off-the-wall new calculation that (13) excessive exposure to the sun is costing 1,600 deaths a year in the UK from melanoma skin cancers, (14) exposure to the sun is the cause of 25,000 deaths a year from cancer generally. In other words, one sixth of all cancer deaths could be prevented (15) we sunned ourselves a little more; in comparison, the melanoma (16) is insignificant. The reason is vitamin D. Grant, the director of the Sunlight, Nutrition and Health Research Centre (SUNARC) he (17) in California a year ago, says that he and other scientists have (18) vitamin D deficiency as a key cause (19) 17 different types of cancer including melanoma, osteoporosis, diabetes, multiple sclerosis and other neurological (20) .
单选题The Aleuts, residing on several islands of the Aleutian Chain, the Pribilof Islands, and the Alaskan peninsula have possessed a written language since 1825, when the Russian missionary Ivan Venation selected appropriate characters of the Cyrillic alphabet to represent Aleut speech sounds, recorded the main body of Aleut vocabulary and formulated grammatical rules. The Czarist Russian conquest of the proud, independent sea hunters was so devastatingly thorough that tribal traditions, even tribal memories, were almost obliterated. The slaughter of the majority of an adult generation was sufficient to destroy the continuity of tribal knowledge, which was dependent upon oral transmission. As a consequence, the Aleuts developed a fanatical devotion to their language as their only cultural heritage. The Russian occupation placed a heavy linguistic burden on the Aleuts. Not only were they compelled to learn Russian to converse with their overseers and governors, but they had to learn Old Slavonic to take an active part in church services as well as to master the skill of reading and writing their own tongue. In 1867, when the United States purchased Alaska, the Aleuts were unable to break sharply with their immediate past and substitute English for any one of their three languages. To communicants of the Russian Orthodox Church a knowledge of Slavonic remained vital as did Russian, the language in which one conversed with the clergy. The Aleuts came to regard English education as a device to wean them from their religious faith. The introduction of compulsory English schooling caused a minor renascence of Russian culture as the Aleut parents sought to counteract the influence of the schoolroom. The harsh life of the Russian colonial rule began to appear more happy and beautiful in retrospect. Regulations forbidding instruction in any language other than English increased its unpopularity. The superficial alphabetical resemblance of Russian and Aleut linked the two tongues so closely that every restriction against teaching Russian was interpreted as an attempt to eradicate the Aleut tongue. From the wording of many regulations, it appears that American administrators often had not the slightest idea that the Aleuts were clandestinely reading and writing their own tongue or even had a written language of their own. To too many officials, anything in Cyrillic letters was Russian and something to be stamped out. Bitterness bred by abuses and the exploitations the Aleuts suffered from predatory American traders and adventurers kept alive the Aleut resentment against the language spoken by Americans. Gradually despite the failure to emancipate the Aleuts from a sterile past by relating the Aleut and English languages more closely, the passage of years has assuaged the bitter misunderstandings and caused an orientation, away from Russian toward English as their second language, but Aleut continues to be the language that molds their thought and expression.
单选题(2008)Letters of apology should be written and sent______.
单选题I was curious______he would say and do next.
单选题The salon was the most elegant room Madeline had ever seen, despite its ______.
单选题What a pretty house, ______ ?
单选题The upshot of all this was that travelling had become precarious.
单选题The strong storm did a lot of damage to the coastal villages: severa; fishing boats were _____ and many houses collapsed.
单选题Cats, according to the author, ______.
单选题
单选题When {{U}}squashed{{/U}} the stem and the leaves of the jewelweed exude a
juice that soothe some skin irritations.
A. boiled
B. aged
C. crushed
D. chopped
单选题Facing growing costs and shrinking tax _____, the government is now threatening to cut funding for environmental protection programs.
单选题The swimming pool is ______ construction. A. in the process of B. in the process for C. on the process of D. on the process for
