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The author believes that creativity______
A．is a unique feature of civilized beings
B．brings forth the improvement of tools
C．is the result of human development
D．helps the advance of culture
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A、supernal
B、superficial
C、inner
D、outer
A．monkeys are the same as birds
B．people once lived in caves like monkeys
C．monkeys can never develop into human beings
D．man is different from other animals such as monkeys
While regulated ecotourism can help conservation efforts by encouraging people to manage endangered species and their habitats, many projects are poorly designed and unregulated, it says. "Many ecotourist projects are unaudited, unauthorized and merely hint they are based on environmentally friendly policies and operations."
Ecotourism is growing by 10 to 30 percent a year and an estimated 20 percent of tourists are thought to visit a conservation-based project. Philip Seddon, of the University of Otago in New Zealand, said that although most tourist projects conformed to basic guidelines on land use and not scaring wildlife, their full impact was rarely considered.
In Africa, gorillas have picked up parasites introduced to their habitat by tourists an mongooses (獴) have caught lung diseases from human beings. Experts said that the answer to the problems was better regulation and supervision of ecotourism. The Galapagos Islands, where visitor numbers are strictly controlled, is a good model.
Ecotourism is meant to______.
A．have tourists help in the conservation of wildlife
B．have wild species respond well to contact with humans
C．make wild species reduce stress and abnormal behavior
D．make conservationists more concerned with wildlife
A．really encourage people to protect wildlife and its habitat
B．strictly follow environmentally friendly polices
C．actually lack proper examination and official approval
D．seriously damage the habitats of endangered species
A．reflects a growing concern for conservation
B．arouses a growing concern for conservation
C．coincides with a mounting concern for conservation
D．originates from a grater concern for conservation
A．It will disturb their life.
B．It will affect their health.
C．It will increase their stress.
D．It will threaten their survival.
Computers can beat chess champion Gary Kasparov at his game, count all the atoms in a nuclear explosion, and calculate complex figures in a fraction of a second, but they still fail at the slight differences in language translation. Artificial Intelligence computers have large amounts of memory, capable of storing huge translating dictionaries and extensive lists of grammar rules. Yet, today's best computer language translators have just a 60 percent accuracy rate. Scientists are still unable to program the computer with human-like common sense reasoning power.
Computer language translation is called Machine Translation, or MT. While not perfect, MT is surprisingly good. MT was designed to process dry, technical language that people find tedious to translate. Computers can translate basic phrases, such as "Your foot bone's connected to your ankle bone, your ankle bone's connected to your leg bone." They can translate more difficult phrases, such as "Which witch is which？" Computers can also accurately translate "Wild thing, you make my heart sing!" into other languages, because they can understand individual words, as long as the words are pre-programmed in their dictionary.
But highly sensitive types of translating, such as important diplomatic conversations, are beyond the scope of computer translating programs. Human translators use intuitional meaning, not logic, to process words and phrases into other languages. A human can properly translate the phrase, "The pen is in the pen (围养禽畜的圈) ," because most humans know that it means that a writing instrument is in a small enclosed space. Many times, computers do not have the ability to determine in which way two identical words in one sentence are to be used.
In addition to using massive rule-programmed machines, computer programmers are also trying to teach computers to learn how to think for themselves through the "experience" of translating. Even with these efforts, programmers admit that a "thinking" computer might not ever be invented in the future.
Computers today are capable of ______
A．defeating the best chess player in the world
B．telling subtle differences between languages
C．translating over 60 percent of difficult texts
D．doing human-like common sense reasoning
A．Computers can translate dry and difficult phrase.
B．Computers can understand sensitive language.
C．Computers can translate technical language.
D．Computers can understand pre-programmed word.
A．encourage people to manage endangered species
B．reduce the exposure of wildlife to human beings
C．help wild animals increase their fitness
D．prevent wildlife from catching human disease
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