概括大意与完成句子，要求用钢笔或圆球笔在答题纸中的指定位置答题，否则按无效答题处理,每题4分,共8分 1、 ExercisingYour Memory1 Aging does not mean a dramaticdecline in memory power, unless you help it help by letting your mind go.2 That''s not to say that memorydoesn''t change throughout life. Researchers divide memory into categories basedon the length of time when memories are stored. One system divides it up asshort-term (less than one minute; remembering a telephone number while youdial, for instance), long-term (over a period of years) and very long-term memory(over a lifetime).3 Short-term memory isn''t mastereduntil about age 7, but after that you never lose it. Long-term memory, however,involves more effort and skill and changes through life. It''s not until theearly teens that most people develop a mature long-term memory.4 First, we must get informationinto our heads through learning. Learning strategies can get rusty (生锈的，迟钝的) without constant use. High school and college students, whoare forced to repeatedly exercise their long-term memory abilities (at leastlong-term enough to get them through a final exam), usually do well on memorytests. The longer you stay in school, the more chance you get to polish yourlearning skills. It''s no wonder that more highly educated people have moreeffective memory skills throughout life.5 Although older people in generallearn somewhat more slowly than they did when younger, a dramatic differenceexists between those who stay intellectually active -- reading, discussing,taking classes, thinking -- and those who do not. Giving the brain a dailyworkout is just as important as exercising your muscles. Brainwork keeps yourlearning strategies in shape, and this helps your memory to function at fullcapacity.6 The next part of a healthylong-term memory is retention(保持力，记忆力), the ability to store whatyou have learned. Memory researchers still do not know whether memories arelost -- whether they still exist in the brain nut our mental searching cannotturn them up, or have disappeared entirely as our brain ages.7 The third necessity for memory isrecall, the ability to mind the memories we have stored. Again, while aging haswidely different effects on the recall abilities of different people, researchindicates that the older we get, the longer it takes to recall facts. Butslower recall is still recall. In fact, aging does not seem to have any effecton forgetting at all, which takes place at the same rate in younger and olderpeople.

1Paragraph 3_________Paragraph4 _________Paragraph5_________Paragraph6 ___________A.Effects of aging on a person''s recall abilityB.short-term memory versus long-term memoryC.retention as the second necessity for memoryD.like between learning strategies and effective memory skillsE.Significance of exercising your musclesF.importance of staying intellectually active

2Retention refers to_____________.Therate of forgetting is the same _____________.Rememberingsomething all your life _____________.Exercisingyour brain every day is beneficial _____________.A. tothe proper function of your memoryB. iscalled long-term memoryC.the capacity to store what you have learnedD.belongs to every long-term memoryE. theability to remain mentally healthyF.for younger and older people

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