Scientists have known exactly the reason why wearing red might give athletes an a
A.Right
B.Wrong
C.Not mentioned
A.Right
B.Wrong
C.Not mentioned
第2题
From the passage we know that the author__________
A.thinks that scientists are about to achieve artificial intelligence
B.doubts whether scientists can ever achieve artificial intelligence
C.does not think that scientists have found real artificial intelligence
D.is sure that scientists have achieved artificial intelligence.
第3题
A.the theories of scientists are used as justification for such harmful beliefs
B.only through science can these people be refuted
C.they have an obligation to correct their mistakes
D.scientists are the ones who know the true nature of humankind
第4题
A. seem to know how to control laughter B. reduce your blood pressure
C. why people laugh
D. the intake and release of air
E. the purpose of laughter is to reduce stress
F. the way it affects the immune system
Scientists do not have clear evidence as to______
第5题
The passage supplies information for answering which of the following questions?
A.Where was the mechanism made?
B.What was the primary purpose of the Antikythera mechanism?
C.How did ancient scientists know how to use the Antikythera mechanism?
D.Precisely how many gears did the mechanism have?
E.What is the purpose of computer tomography?
第6题
听力原文: Man has a big brain. He can think and speak. Scientists used to think that men are different from animals because they can think and learn. They now know that animals can learn —dogs, rats, birds —and worms —can learn. So scientists are beginning to understand that men are different from animals because they can speak. Animals cannot speak. They make noises when they are afraid, or angry, or unhappy. Apes are our nearest cousins. They can understand some things more quickly than human beings, and one or two have learned a few words. But they are still different from us. They cannot join words and make sentences. They cannot think like us because they have no language. They can never think about the past or the future.Language is a wonderful thing. Man has been able to develop civilization because he has language. Every child can speak his own language very well when he is four or five —but no animal learns to speak. How do children learn? Scientists do not really know. What happens when we speak? Scientists do not know. They only know that man can speak because he has a big brain.
(34)
A.Because he has a big brain.
B.Because he learns to speak.
C.Because he develops civilization.
D.Because he knows many words.
第7题
第二篇
Have you ever suddenly felt that someone you know was in trouble-and he was? Have you ever dreamed something that came true later? Maybe you have ESP(超感官知觉).
ESP stands for Extra Sensory Perception. It may be called a sixth sense. It seems to let people know about events before they happen, or events that are happening some distance away.
Here is an example: A woman was doing washing. Suddenly she screamed. "My father is dead! I saw him sitting in the chair!' Just then, a telegram came. The woman's father had died of a heart attack. He died sitting in a chair.
There are thousands of stories like this on record. Scientists are studying them to find out what is behind these strange mental messages. Here's another example--one of hundreds of dreams that have come true.
A man dreamed he was walking along a road when a horse and carriage came by. The driver said, "There's room for one more." The man felt the driver was Death, so he ran away. The next day the man was getting on a crowded bus. The bus driver said, "There's room for one more." Then the man saw the driver's face was the same face he had seen in the dream. He wouldn't get on the bus. As the bus drove off, it crashed and burst into flames. Everyone was killed!
Some people say stories like these are lies or coincidences. Others, including some scientists say that ESP is true. From studies of ESP, we may some day learn more about the human mind.
ESP lets people know about
A. their dreams
B. events after they happen
C. events before they happen
D. heart attacks
第8题
ESP stands for Extra Sensory Perception. It may be called a sixth sense. It seems to let people know about events before they happen, or events that are happening some distance away.
Here is an example: A woman was doing washing. Suddenly she screamed. "My father is dead! I saw him sitting in the chair!' Just then, a telegram came. The woman's father had died of a heart attack. He died sitting in a chair.
There are thousands of stories like this on record. Scientists are studying them to find out what is behind these strange mental messages. Here's another example--one of hundreds of dreams that have come true.
A man dreamed he was walking along a road when a horse and carriage came by. The driver said, "There's room for one more." The man felt the driver was Death, so he ran away. The next day the man was getting on a crowded bus. The bus driver said, "There's room for one more." Then the man saw the driver's face was the same face he had seen in the dream. He wouldn't get on the bus. As the bus drove off, it crashed and burst into flames. Everyone was killed!
Some people say stories like these are lies or coincidences. Others, including some scientists say that ESP is true. From studies of ESP, we may some day learn more about the human mind.
ESP lets people know about
A.their dreams
B.events after they happen
C.events before they happen
D.heart attacks
第9题
A.Did you sacrifice a family for your work?
B.Did you feel happy with your life?
C.Did you have something interesting to share with us?
D.Did you get a higher salary?
第10题
Natural Medicine
Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.
They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny (发亮的) instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured, how? By ancient methods.
By medicines that might seem mysterious, even magical (有魔力的). Traditional medicines are neither mysterious nor magical, however.
Through the centuries, tribal (部落的) medicine men experimented with plants. They found many useful chemicals in the plants. And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.
Experts say almost 80% of the people in the world use plants for health care. These natural medicines are used not just because people have no other form. of treatment. They are used because people trust them. In developed areas, few people think about the source of the medicines they buy in a store. Yet many widely-used medicines are from ancient sources, especially plants. Some experts say more than 25% of modem medicines come, in one way or another, from nature.
Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive. So scientists' interest in traditional medicine is not new. But it has become an urgent concern. This is because the earth's supply of natural medicines may be dropping rapidly.
The passage indicates that ancient treatments for injury and disease were______.
A.much more successful than modem ones
B.successful in all cases
C.successful enough for humans to survive
D.of little help to humans