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河南省实验中学高三(上)

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       Amaking a wrong judgment about            Bunderstanding somebody wrongly

       Cgiving a wrong description of                Dforming a wrong opinion about

70In the last four paragraphs, the writer suggests that one should      .

       Abelieve nobody on the net                     Bbe careful about the on-line friends

       Cnot be honest on the net                       Dmake friends with those you believe in

E

       If you want to stay young, sit down and have a good think. This is the research finding of a team of Japanese doctors, who say that most of our brains are not getting enough exercise and, as a result, we are growing old unnecessarily soon.

       Professor Taiju Matsuzawa wanted to find out why quite healthy farmers in northern Japan appeared to be losing their ability to think and reason at a rather early age, and how the speed of getting old could be slowed down.

       With a team of researchers at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages with different jobs.

       Computer technology helped the researchers to get most exact measurements of the volume of the front and side part of the brain, which have something to do with intellect(智力)and feelings, and decide the human character. As we all know, the back part of the brain, which controls tasks like eating and breathing, does not contract(萎缩)with age.

       Contraction of front and side partsas cells(细胞)die offwas seen in some people in their thirties but it was still not found in some sixty and seventy-year-old.

       Matsuzawa concluded from his test that there is a simple way to prevent the contraction using the head.

       The findings show that contraction of the brain begins sooner in people in the country than in the towns. Those with least possibility, says Matsuzawa, are lawyers, followed by university professors and doctors. White-collar workers doing the same work day after day in government offices are, however, as possible to have contraction brains as the farm workers, bus drivers and shop assistants.

71What did the team of doctors want to find out?

       AHow to make people live longer.            BHow to slow down the speed of getting old.

       CThe size of certain people’s brain.          DWhich people are the most clever.

72

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