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  3. The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday. While elderly

The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday. While elderly

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问题     The popular notion that older people need less sleep than younger adults is a myth, scientists said yesterday.
    While elderly people【S1】______to sleep for fewer hours than they did when they were younger, this has a( n) 【S2】______effect on their brain’s performance and they would benefit from getting more, according to research.
    Sean Drummond, a psychiatrist (心理医生) at the University of California, San Diego, said that older people are more likely to suffer from broken sleep, while younger people are better at sleeping【S3】______straight through the night.
    More sleep in old age, however, is【S4】______with better health, and most older people would feel better and more【S5】______if they slept for longer periods, he said.
    " The ability to sleep in one chunk (整块时间) overnight goes down as we age but the amount of sleep we need to【S6】______well does not change, " Dr Drummond told the American Association for the Advancement of Science conference in San Diego.
    " It’s【S7】______a myth that older people need less sleep. The more healthy an older adult is, the more they sleep like they did when they were【S8】______. Our data suggests that older adults would benefit from【S9】______to get as much sleep as they did in their 30s. That’s【S10】______from person to person, but the amount of sleep we had at 35 is probably the same amount as we need at need at 75. "
A) alert       I) formally
B) associated  J) function
C) attracting  K) mixed
D) cling       L) negative
E) continuing  M) sufficient
F) definitely  N) tend
G) different   O) younger
H) efficiently
【S3】
选项
答案H
解析 本句不缺少主干成分，谓语动词词组be better at后的sleeping为动名词形式，空格后又是形容词straight，由此判断此处应填副词，作状语。结合句意efficiently符合。指与老年人相比，年轻人的睡眠更高效，一觉到天亮。
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大学英语四级

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