Advancing age means losing your hair, your waistline and your memory，right ? Dana Denis is just 40 years old，but  2 1  she’s worried about what she calls’ my rolling mental blackouts.” ”I try to remember something and I just blank out，”she says

    You may  22 about these lapses，calling them ” senior moments ”or blaming "early Alzheimer’s (老年痴呆症)．”Is it an inescapable fact that the older you get，the  23  you remember? Well, sort of．But as time goes by, we tend to blame age  24  problems that are not necessarily age—related．

“When a teenager can’t find her keys，she thinks it's because she’s distracted or disorganized，”says Paul Gold．“A 70-year-old blames her 25 ．”In fact，the 70-year-old may have been 26  things for decades．

In healthy people，memory doesn’t worsen as  27  as many of us think．“As we  28，the memory mechanism isn’t  29 ，”says psychologist Fergus Craik．”It’s just inefficient．”

The brain’s processing  30  slows down over the years，though no one knows exactly  31. Recent research suggests that nerve cells lose efficiency and  32 there’s less activity in the brain．But，cautions Barry Gordon，”It's not clear that less activity is  33 ．A beginning athlete is winded（气喘吁吁）more easily than a 34  athlete．In the same way,  35 the brain gets more skilled at a task，it expends less energy on it.”

There are  36  you can take to compensate for normal slippage in your memory gears，though it 37 effort．Margaret Sewell says：”We’re a quick-fix culture, but you have to  38  to keep your brain 39 shape．It’s like having a good body．You Can’t go to the gym once a year 40 expect to stay in top form.”

21．A. almost        B. seldom        C. already            D. never

22．A. joke          B. laugh         C. blame          D. criticize

23．A. much         B. little          C. more            D. less

24．A. since          B. for            C. by             D. because

25．A. memory       B. mind         C. trouble         D. health

26．A. disorganizing   B. misplacing    C. putting         D. finding

27．A. swiftly         B. frequently    C. timely          D. quickly

28．A．mature       B. advance      C. age             D. grow

29．A. broken        B. poor         C. perfect          D. working

30．A. pattern        B. time         C. space           D. information

31．A . why          B. how         C. what            D. when
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