B

Heroes of Our Time

A good heart

       Dikembe Mutombo grew up in Africa among great poverty and disease. He came to Georgetown University on a scholarship(奖学金) to study medicine — but Coach(教练) John Thompson got a look at Dikembe and had a different idea. Dikembe became a star in the NBA, and a citizen of the United States. But he never forgot the land of his birth, or the duty to share his fortune with others. He built a new hospital in his old hometown in the Congo. A friend has said of this good-hearted man: “Mutombo believes that God has given him this chance to do great things.”

Success and kindness

       After her daughter was born, Julie Aigner-Clark searched for ways to share her love of music and art with her child. So she borrowed some equipment, and began filming children’s videos(录像) in her own house. The Baby Einstein Company was born, and in just five years her business grew to more than $20 million in sales. And she is using her success to help others — producing child safety videos with John Walsh of the National Center for Missing and Exploited Children. Julie says of her new program: “I believe it’s the most important thing that I have ever done. I believe that children have the right to live in a world that is safe.”

Bravery and courage

       A few weeks ago, Wesley Autrey was waiting at a Harlem subway station with his two little girls when he saw a man fall into the path of a train. With seconds to act, Wesley jumped onto the tracks, pulled the man into the space between the rails(铁轨), and held him as the train passed right above their heads. He insists he’s not a hero. He says: “We have got to show each other some love.”

60. What was Mutombo praised for?

   A. Being a star in the NBA.                  B. Being a student of medicine.

   C. His work in the church.                        D. His willingness to help the needy.

61. Mutombo believes that building the new hospital is ______.

   A. helpful to his personal development

   B. something he should do for his homeland

   C. a chance for his friends to share his money

   D. a way of showing his respect to the NBA

62. What did the Baby Einstein Company do at its beginning?

   A. Produce safety equipment for children.

   B. Make videos to help protect children.

   C. Sell children’s music and artwork.

   D. Look for missing and exploited children.

63. Why was Wesley Autrey praised as a hero?

   A. He helped a man get across the rails.

   B. He stopped a man from destroying the rails.

   C. He protected two little girls from getting hurt.

   D. He saved a person without considering his own safety.

 

E  

As a result of pollution , Lake Erie , on the borders of the USA and Canada, is now without any living things.  

   Pollution in water is not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organism(生物体 ) to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die too. In this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening.  

   Where do the substances which pollute the water come form? There are two main sources sewage (污水) and industrial waste. As more detergent (洗涤剂 ) is used in the home, so more of it is finally put into our rivers. lakes and seas. Detergents harm water birds dissolving the natural substances which keep their feathers waterproof. Sewage itself, if not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many highly poisonous things in it, such as copper and lead(铅 ).  

   So , if we want or stop this pollution , the answer is simple: sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.  

72. Pollution in water is noticed _____.   

A. when the first organisms are affected     B. when a good many fish and birds die    

C. when poisonous things are poured into water          

D. as soon as the balance of nature is destroyed    

73. The living things die because there is no ____ in the lake or river.     

  A. water           B. fish                C. poison            D. oxygen    

74. Which of the following is harmful according to the passage?   

 A. Organisms                              B. Plants and plankton in the water        

C. Waste water from cleaning   D. Industrial waste made clear before flowing into the water   

75.The way to stop water pollution is _______.  

A. realize the serious situation clearly    

B. put oxygen into the river    

C. make the waste material harmless before flowing into the water   

D. make special room in the sea for our rubbish  

D

To what degree can a computer achieve intelligence (智力)? The answer to this question may lie in a newly-developed US computer program called Smarter Child and the Internet.

If you ran into Smarter Child online , you would be surprised at this kid’s huge memory.It can recite many facts. For example , Smarter Child knows every baseball player in every team this season.

He knows every word in the dictionary and the weather in every major city areas across the US.However , if you ask Smarter Child other questions , you get stranger answers.A question about Smarter Child’s age returns. “One year, 11 days, 16 hours, 7 minutes, and 47 seconds!” Asking where he lives gets , “In a clean room in a high-tech building in California.”

Smarter Child uses the vast information on the World Wide Web as his memory bank.To answer questions about spelling , for instance , Smarter Child goes to American Heritage Dictionary online.For the weather , he visits www.intellicast.com.

Some scientists believe that by joining the many systems of the Internet , an artificial being with the combined knowledge of , say , Albert Einstein, Richard Nixon and Britney Spears could be born.However if Smarter Child wants to think and learn on his own like the boy-computer David in the movie A.I., Artificial Intelligence , he must overcome two problems.

The first is that computers find it difficult to read web pages because the files are labeled in different ways.That’s why programmers need to tell Smarter Child where to look for the weather.It would be a much more difficult task to let him find it himself.

Another problem is that while Smarter Child can process (处理) information more exactly and faster than any human , he lacks common sense—a basic grounding of knowledge that is obvious to any young child.

67.From the text we can infer that www.intellicast.com is a website___________.

       A.which is specially designed to help Smarter Child

       B.where we people can find Smarter Child

       C.where weather forecasts are made

       D.which is about artificial intelligence

68.It is probably most difficult for Smarter Child to_______.

       A.tell us how to spell a difficult word

       B.tell us how the American government is run

       C.provide us with a famous poem by Shakespeare

       D.learn how to tell right behaviors from wrong ones。

69.Which of the following is TRUE according to the text?

       A.Smart Child has his own memory bank big enough for all kinds of information.

       B.A.I.Artificial Intelligence is probably the name of a film about a boy-computer.

       C.Smart Child can recognize different files and find information needed on his own.

       D.We have similar product now which has the knowledge of Einstein , Nixon and Spears.

70.Which of the following is the best title for the passage?

       A.A New Web Child       B.Smarter Child

       C.The Future of Internet    D.Intelligence Development

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