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

　　While elderly people __47__ to sleep for fewer hours than they did when they wereyounger, this has a(n) __48__ effect on their brain's performance and they would benefitfrom getting more, according to research.

　　Sean Drummond, a. psychiatrist (心理醫(yī)生) at the University of California, San Diego, saidolder people are more likely to suffer from broken sleep, while younger people are better atsleeping __49__ straight through the night.

　　More sleep in old age, however, is __50__ with better health, and most older people wouldfeel better and more __51__ if they slept for longer periods, he said.

　　"The ability to sleep in one chunk (整塊時(shí)間) overnight goes down as we age but theamount of sleep we need to __52__ well does not change," Dr Drummond told the AmericanAssociation for the Advancement of Science conference in San Diego.

　　"It's __53__ 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 __54__. Our data suggests that older adultswould benefit from __55__ to get as much sleep as they did in their 30s. That's __56__ fromperson to person, but the amount of sleep we had at 35 is probably the same amount as weneed at 75."

　　注意：此部分試題請(qǐng)?jiān)诖痤}卡2上作答。

　　A) alert

　　B) associated

　　C) attracting

　　D) cling

　　E) continuing

　　F) definitely

　　G) different

　　H) efficiently

　　I) formally

　　J) function

　　K) mixed

　　L) negative

　　M) sufficient

　　N) tend

　　O) younger

　　答案解析：

　　47 N tend

　　48 L negative

　　49 H efficiently

　　50 B associated

　　51 A alert

　　52 J function/

　　53 F definitely

　　54 O younger

　　55 E continuing

　　56 G different

　　文章大意：本文主要講述的是關(guān)于老年人睡眠的問題：是否老年人與年輕人相比只需要較少的睡眠時(shí)間?

　　47. tend to 固定搭配;表示"傾向于;"符合句意;

　　48. 空格后是effect， 前面是a(n)， 由此可見，該處需要填入一個(gè)形容詞;題目給出的形容詞有negative, sufficient, younger;根據(jù)前后語意，填入negative最為恰當(dāng)，表示"少的睡眠時(shí)間對(duì)大腦的活動(dòng)有負(fù)面的影響。"

　　49. 根據(jù)推測，該處應(yīng)該填入一個(gè)副詞，題目給出的副詞有efficiently, definitely, formally;前面提到，老年人在睡覺的時(shí)候更容易被打斷，而后面用while提出一個(gè)對(duì)比的概念，年輕人相比起來能獲得更_______ 的睡眠;綜合起來，選用efficiently(最有效率的)最為準(zhǔn)確。

　　50. be associated with 固定搭配;表示"與…聯(lián)系在一起";本句話表示"更多的睡眠通常都與健康度聯(lián)系在一起";

　　51. 先看整句話的含義，"如果他們能睡更長的時(shí)間，他們的感覺應(yīng)該會(huì)更好以及…"那么，該處應(yīng)該填入一個(gè)褒義詞，選擇alert比較恰當(dāng)，表示"更加警覺，機(jī)靈";

　　52. 根據(jù)判斷，此處應(yīng)該填入一個(gè)動(dòng)詞，剩下的動(dòng)詞有cling, function;整句話的意思是"當(dāng)我們上了年紀(jì)的時(shí)候，我們一覺睡到天亮的能力下降了，但是，我們需要…的睡眠量并沒有改變;"空格后的單詞是well，cling 在這里并不合適，一般與to連用;選用function 最為適合;

　　53. 作者在首段已經(jīng)提出這個(gè)觀點(diǎn)是一個(gè)myth，那么顯而易見最后一段中出現(xiàn)的myth是作為一種強(qiáng)調(diào)手段，應(yīng)填入definitely;

　　54. 空格的前面是 when they were…， "當(dāng)他們年輕的時(shí)候";應(yīng)填入younger;

　　55. 本句的意思是"我們的數(shù)據(jù)顯示老年人將從…獲益;"空格的后面是"得到和他們?cè)谌鄽q的時(shí)候能得到的睡眠一樣多";根據(jù)上下文意思，該處應(yīng)填入"continuing";

　　56. different from 固定搭配;表示"和…不同";

　　總的說來，建議大家在做題之前對(duì)所給的所有詞匯進(jìn)行一下簡單的詞性分類，這樣，更有助于考生快速有效地從最小的范圍內(nèi)選出答案。