问答题 Listen to the following passage, altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will then be given 2 minutes to cheek through your work once more.

【正确答案】

【答案解析】[听力原文]

Learning Disabilities

There are many different kinds of learning disabilities, / and they are caused by many different things. / 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. / Many of the nerve cells were not in a line the way they should have been. / The nerve cells were mixed together. / Other researchers measured the brain' s electrical activity / and made a map of the electrical signals. / They found large differences in the brain activity of normal children and those with reading problems. / The differences appeared throughout the brain. / This research is evidence that reading disabilities involve damage to a wide area of the brain, / not just the left side. / (155)