有关饮食安康的英语六级阅读练习习题及答案

有关饮食安康的英语六级阅读练习习题及答案Ｗomenwhodrankthreeormorecupsofcoffeeadaywere30percentlesslikelytohavememorydeclineatage65thanwhosewhodrankonecuporlessdaily.Ａndthebenefitincreasedwithage.Ｗomenoverage80whodrankthreeormorecupsofcoffeeadaywereabout70percentlesslikelytohavememorydeclinethanthosewhodrankonecuporless.theresearcherssaid.

Ｃaffeinatedteahadthesameeffectinthewomen.thestudyfound,althoughmorewasneededtogetthesamecaffeineboost."Ｃountroughlytwocupsofteaforacupofcoffee,"saidstudyleaderＫarenＲitchieofＩＮＳＥＲＭ,theＦrenchＮationalＩnstituteforＨealthandＭedicalＲesearch.

Ｂuttheresearchersdidn'tfindasimilarlyprotectiveeffectinmen,althoughotherstudieshavefoundabenefittomales.

Ｈowmightcaffeinehelpwardoffcognitivedecline?"Ｉtisacognitivestimulant."saidＲitchie.Ｉtalsohelpstoreducelevelsoftheproteincalledbetaamyloidinthebrain.shesaid."whoseaccumulationisresponsibleforＡlzheimer'sdiseasebutwhichalsooccursinnormalaging."

Ｒitchiesaidshewasn'tsurewhymeninthestudydidn'tbenefitfromcaffeine."Ｏurhypothesisisthateitherwomenmetabolizecaffeinedifferentlythanmen,ortheremaybeaninteractionofthecaffeinewiththesexhormones.theestrogen-progesteronebalance,"shesaid.

ＴheＦrenchstudyconfirmspreviousresearch,saidＷilliamＳcott.professorofmedicineattheＵniversityofＭiamiＭillerＳchoolofＭedicine.whohasresearchedcaffeine'sbeneficialeffectsagainstＰarkinson'sdisease,alsoaneurodegenerativedisorder.

Ａsforcaffeineonlyprotectingwomen,Ｓcottnotedthatjust2,800ofthe7,000studyparticipantsweremen.andtheresultsmighthavedifferedifmoremenwereincluded.

ＡstudypublishedinＦebruaryintheＥuropeanＪournalofＣlinicalＮutritionlookedat676healthymenandfoundthatregularcoffeedrinkershadalowerrateofcognitivedeclineovera10-yearfollow-upthanthosewhodidn'tdrinkcoffee.Ｔhosewhodrankthreecupsdailyhadtheleastsignsofdecline.

ＢothＳcottandＲitchieagreedthatmorestudyisneeded.Ｒitchie'sresearchwillnextlookattherelationshipbetweencaffeineandＡlzheimer's.

1.Ａsitisindicatedinthelstparagraph,howdoescoffeeinfluencewomen’smemory?

Ａ)Ｔheolderthewomanwas.themoreremarkablehermemorywas.

Ｂ)Ｔhemorecoffeethewomandrank,themoreslowlyhermemorydeclined.

Ｃ)Ｔheolderthewomanwas,themoreslowlyhermemorydeclined.

Ｄ)Ｔhemorecoffeethewomandrank.themoreremarkablehermemorywas.

2.Ｗhatistrueaboutcaffeinatedtea?

Ａ)Ｉtaffectedwomen’smemoryinthesamemannerascoffee.

Ｂ)Ｉtinfluencedwomen’smemoryaseffectivelyascoffee.

Ｃ)Ｉtboostedwomen’smemoryinthesamerateascoffee.

Ｄ)Ｉtcontainedchesameamountofcaffeineascoffee.

3.ＡccordingtoＲitchie.Ａlzheimer'sdiseaseisresultedfrom________________.

Ａ)thelackofcaffeineinthebrain

Ｂ)theaccumulationofbetaamyloid

Ｃ)highlevelofproteinsinthebrain

Ｄ)abnormalmetabolisminnormalaging

4.ＷilliamＳcottwouldmostprobablyagreethatcaffeinehelped_______________.

Ａ)reducetheriskofＡlzheimer'sdisease

Ｂ)retardtheprocessofcognitivedecline

Ｃ)balancetheproductionoffemalehormones

Ｄ)protectbothmenandwomenfromdiseases

5.Ｗhatwastheauthor'sattitudetowardstheresearchofcaffeine'sbeneficialeffectonmen7

Ａ)Ｄoubtful.

Ｂ)Ｃonvinced.

Ｃ)Ｍatter-of-fact.

Ｄ)Ｃautious.

1.第一段中显示，咖啡能如何影响女士的记忆?

Ａ)女士年纪越大，她的记忆就越出色。

Ｂ)女士喝的咖啡越多，记忆衰退的速度就越慢。

Ｃ)女士年纪越大，记忆衰退的速度就越慢。

Ｄ)女士喝的咖啡越多，她的记忆就越出色。

[Ｃ]首段第2句概括了该段的主要内容，句中的benefit指的是记忆衰退的减缓。因此本段内容为：年龄越长，记忆衰退就比同龄人越慢,即Ｃ。本段关注的是咖啡影响记忆的衰退程度，而非咖啡是否能增强记忆，Ａ.Ｄ(记忆力的好坏)在本段并未论及;虽然本段比照了喝三杯或更多咖啡的女性与喝一杯或更少的女性的记忆衰退程度，但这其实不意味着咖啡喝得越多越好，因此，Ｂ、Ｄ中的themorecoffeethewomandrank这个前提不正确，故两项均错。

2.对于含咖啡因的茶叶的说法，下列哪一项正确?

Ａ)影响女士记忆的方式与咖啡一样。

Ｂ)影响女士记忆的效果与咖啡一样。

Ｃ)促进女士记忆的速度跟咖啡一样。

Ｄ)含有的咖啡因与咖啡一样。

[Ａ]第2段首句中的thesameeffect与上一段提到的benefit所指相同，故本句表明含咖啡因的茶和咖啡以同样的机制影响女性的记忆衰退程度，选Ａ。第2段首句中although引出的让步状语从句表明咖啡的作用比茶明显。因此Ｂ不正确，这样看来，Ｄ(茶和咖啡含有同量的咖啡因)也是不正确的;Ｃ针对的是增强记忆，而非其衰退程度，不符合文章的论点，也不正确。

3.根据Ｒitchie所称，患上早老性痴呆病是因为_______________。

Ａ)脑袋里面缺乏咖啡因

Ｂ)β淀粉酶的累积

Ｃ)脑袋里高水平的蛋白质

Ｄ)正常老化当中的不正常代谢

[Ｂ]第4段末句中的betaamyloid...whoseaccumulationisresponsibleforＡlzheimer'sdisease表明Ｂ为本习题答案。本习题根据Ｒitchie和Ａlzheimer's定位原文后。答案就不难找到。

4.ＷilliamＳcott最有可能同意的是，咖啡因能帮助__________________。

Ａ)降低患上早老性痴呆病的风险

Ｂ)减缓认知衰退的过程

Ｃ)平衡女性荷尔蒙的产生

Ｄ)保护男士和女士不受疾病困扰

[Ｂ]第6段首句开头的ＴheＦrenchstudyconfirmspreviousresearch表明斯科特认同了法国人的研究结果，即咖啡因能减缓记忆衰退，因此本习题选Ｂ。第4段提及咖啡因可以降低导致老年痴呆症的β淀粉酶的水平，但要注意的是，该段末也有提及老年痴呆症在正常