D video coverage of the 1989 San Francisco earthquake gave the viewers the impression of the total disaster
38 The term “electronic city” in Paragraph 2 refers to ____________. A Los Angeles B San Francisco C Berkeley D Earth
39 The 1992 Los Angeles riots broke out because ____________. A the jury acquitted the policemen who had beaten Rodney King B people can make their own judgements
C video coverage from helicopters had made people angry D video coverage had provided powerful feedback 40 It can be inferred from the passage that ____________.
A media coverage of events as they occur can have either good or bad results B most people who had seen the video of the Rodney King beating agree with the verdict of the jury
C the 1992 Los Angeles riots lasted a whole week
D Rodney King seemed very angry when he appeared on television on Friday 第三篇
Learning Disabilities
Learning disabilities are very common. They affect perhaps 10 percent of all children. Four times as many boys as girls have learning disabilities.
Since about 1970, new research has helped brain scientists understand these problems better. Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things. There is no longer any question that all learning disabilities result from differences in the way the brain is organized.
You cannot look at a child and tell if he or she has a learning disability. There is no outward sign of the disorder. So some researchers began looking at the brain itself to learn what might be wrong.
In one study, researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things. One involved cells in the left side of the brain, which control language. These cells normally are white. In the learning disabled person, however, these cells were gray. The researchers also found that many of the nerve cells were not in a line the way they should have been. The nerve cells were mixed together.
The study was carried out under the guidance of Norman Geschwind, an early expert on learning disabilities. Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally. Probably, he said, nerve cells there did not connect as they should. So the brain was like an electrical device in which the wires were crossed.
Other researchers did not examine brain tissue. Instead, they measured the brain's electrical activity and made a map of the electrical signals.
Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston. Doctor Dully found large differences in the brain activity of normal children and those with reading problems. The differences appeared throughout the brain. Doctor Duffy said his research is evidence that disabilities involve damage to a wide area of the brain, not just the left side.
41 Which of the following is NOT mentioned in the passage? _________. A Learning disabilities may result from the unknown area of the brain. B Learning disabilities may result from damage to a wide area of the brain. C Learning disabilities may result from abnormal organization of the brain cells.
D Learning disabilities may result from problems in the left side of the brain.
42 Scientists found that the brain cells of a learning-disabled person differ from those of a normal person in _________. A structure and function B color and function C size and arrangement D color and arrangement
43 All of the following statements are TRUE except that _________. A many factors account for learning disorder B a learning-disabled person shows no outward signs
C reading disabilities are a common problem that affects 10 percent of the population
D the brain activity of learning-disabled children is different from that of normal children
44 Doctor Duffy believed that __________. A he found the exact cause of learning disabilities
B the problem of learning disabilities did not lie in the left side of the brain C the problem of learning disabilities resulted from the left side of the brain
D the problem of learning disabilities was not limited to the left side of the brain
45 According to the passage we can conclude that further researches should be made __________.
A to help learning-disabled children to develop their intelligence B to study how children learn to read and write, and use numbers C to investigate possible influences on brain development and organization D to explore how the left side of the brain functions in language learning 第五部分：补全短文(第46～50题，每题2分，共10分)
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The Story of Lani
Five-year-old Lani still takes seven medicines with her breakfast every morning. “She's very good about it,” says her father David. Lani is alive today because of her father David, in more than one way; when she was one year old she received part of her father's liver in a liver-transplant operation. Lani was born with a liver illness. 46 Doctors advised that trans-plant was the only way in which she would live.