2017年12月六級考試馬上到來了，為了讓同學(xué)們更好準(zhǔn)備六級考試，特別整理了《2017年12月英語六級閱讀練習(xí)：飲食健康》，希望可以為大家?guī)韼椭? 預(yù)祝大家高分通過考試。
Women who drank three or more cups of coffee aday were 30 percent less likely to have memorydecline at age 65 than whose who drank one cup orless daily. And the benefit increased with age. Women over age 80 who drank three or more cupsof coffee a day were about 70 percent less likely tohave memory decline than those who drank one cup or less. the researchers said.
Caffeinated tea had the same effect in the women. the study found, although more was neededto get the same caffeine boost. "Count roughly two cups of tea for a cup of coffee," said studyleader Karen Ritchie of INSERM, the French National Institute for Health and Medical Research.
But the researchers didn't find a similarly protective effect in men, although other studies havefound a benefit to males.
How might caffeine help ward off cognitive decline? "It is a cognitive stimulant." saidRitchie. It also helps to reduce levels of the protein called beta amyloid in the brain. she said. "whose accumulation is responsible for Alzheimer's disease but which also occurs in normalaging."
Ritchie said she wasn't sure why men in the study didn't benefit from caffeine. "Ourhypothesis is that either women metabolize caffeine differently than men, or there may be aninteraction of the caffeine with the sex hormones.the estrogen-progesterone balance," shesaid.
The French study confirms previous research, said William Scott. professor of medicine at theUniversity of Miami Miller School of Medicine. who has researched caffeine's beneficial effectsagainst Parkinson's disease, also a neurodegenerative disorder.
As for caffeine only protecting women, Scott noted that just 2,800 of the 7,000 studyparticipants were men. and the results might have differed if more men were included.
A study published in February in the European Journal of Clinical Nutrition looked at 676 healthymen and found that regular coffee drinkers had a lower rate of cognitive decline over a 10-year follow-up than those who didn't drink coffee. Those who drank three cups daily had theleast signs of decline.
Both Scott and Ritchie agreed that more study is needed. Ritchie's research will next look at therelationship between caffeine and Alzheimer's.
1. As it is indicated in the l st paragraph, howdoes coffee influence women’s memory?
A) The older the woman was. the more remarkableher memory was.
B) The more coffee the woman drank, the moreslowly her memory declined.
C) The older the woman was, the more slowly her memory declined.
D) The more coffee the woman drank. the more remarkable her memory was.
2. What is true about caffeinated tea?
A) It affected women’s memory in the same manner as coffee.
B) It influenced women’s memory as effectively as coffee.
C) It boosted women’s memory in the same rate as coffee.
D) It contained che same amount of caffeine as coffee.
3. According to Ritchie. Alzheimer's disease is resulted from________________.
A) the lack of caffeine in the brain
B) the accumulation of beta amyloid
C)high level of proteins in the brain
D) abnormal metabolism in normal aging
4. William Scott would most probably agree that caffeine helped_______________.
A) reduce the risk of Alzheimer's disease
B) retard the process of cognitive decline
C) balance the production of female hormones
D) protect both men and women from diseases
5. What was the author's attitude towards the research of caffeine's beneficial effecton men7
A) Doubtful.
B) Convinced.
C) Matter-of-fact.
D) Cautious.
1.第一段中顯示，咖啡能如何影響女士的記憶?
A)女士年紀(jì)越大，她的記憶就越出色。
B)女士喝的咖啡越多，記憶衰退的速度就越慢。
C)女士年紀(jì)越大，記憶衰退的速度就越慢。
D)女士喝的咖啡越多，她的記憶就越出色。
[C]首段第2句概括了該段的主要內(nèi)容，句中的benefit指的是記憶衰退的減緩。因此本段內(nèi)容為：年齡越長，記憶衰退就比同齡人越慢, 即C。本段關(guān)注的是咖啡影響記憶的衰退程度，而非咖啡是否能增強(qiáng)記憶，A.D(記憶力的好壞)在本段并未論及;雖然本段對比了喝三杯或更多咖啡的女性與喝一杯或更少的女性的記憶衰退程度，但這并不意味著咖啡喝得越多越好，因此，B、D中的the more coffee the woman drank這個前提不正確，故兩項(xiàng)均錯。
2.對于含咖啡因的茶葉的說法，下列哪一項(xiàng)正確?
A)影響女士記憶的方式與咖啡一樣。
B)影響女士記憶的效果與咖啡一樣。
C)促進(jìn)女士記憶的速度跟咖啡一樣。
D)含有的咖啡因與咖啡一樣。
[A]第2段首句中的the same effect與上一段提到的benefit所指相同，故本句表明含咖啡因的茶和咖啡以同樣的機(jī)制影響女性的記憶衰退程度，選A。第2段首句中although引出的讓步狀語從句表明咖啡的作用比茶明顯。因此B不正確，這樣看來，D(茶和咖啡含有同量的咖啡因)也是不正確的;C針對的是增強(qiáng)記憶，而非其衰退程度，不符合文章的論點(diǎn)，也不正確。
3.根據(jù)Ritchie所稱，患上早老性癡呆病是因?yàn)開______________。
A)腦袋里面缺乏咖啡因
B)β淀粉酶的累積
C)腦袋里高水平的蛋白質(zhì)
D)正常老化當(dāng)中的不正常代謝
[B]第4段末句中的beta amyloid...whose accumulation is responsible for Alzheimer's disease表明B為本題答案。本題根據(jù)Ritchie和Alzheimer's定位原文后。答案就不難找到。
4.William Scott最有可能同意的是，咖啡因能幫助__________________。
A)降低患上早老性癡呆病的風(fēng)險(xiǎn)
B)減緩認(rèn)知衰退的過程
C)平衡女性荷爾蒙的產(chǎn)生
D)保護(hù)男士和女士不受疾病困擾
[B]第6段首句開頭的The French study confirms previous research表明斯科特認(rèn)同了法國人的研究結(jié)果，即咖啡因能減緩記憶衰退，因此本題選B。第4段提及咖啡因可以降低導(dǎo)致老年癡呆癥的β淀粉酶的水平，但要注意的是，該段末也有提及老年癡呆癥在正常的老化過程中也會出現(xiàn)，這意味著老年癡呆癥也可能與β淀粉酶無關(guān)，那么，對于不是由β淀粉酶引起的老年癡呆癥，咖啡因就不起作用了，強(qiáng)干擾項(xiàng)A的說法過于片面，可排除。
5.作者對于咖啡因?qū)θ祟愑幸娴难芯砍衷鯓拥膽B(tài)度?
A)懷疑。
B)信服。
C)認(rèn)為是事實(shí)。
D)謹(jǐn)慎。
[C]本文是作者對一項(xiàng)研究結(jié)果的客觀引述，沒有涉及作者的個人態(tài)度，因此作者對文中任何觀點(diǎn)話題的看法都只是持旁觀者中立的態(tài)度，故選C。其他選項(xiàng)都具有積極或消極的詞義色彩，不表明中立的態(tài)度。故均不能選。