（课标通用）2018版高考英语大一轮复习 unit 2 poems课时作业 新人教版选修6

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1、Unit2PoemsⅠ.阅读理解[2017·皖南名校联盟联考]Ifdrinkingcoffeeorteahasbecomepartofyourdailyroutine，youmightwonderwhatit'sdoingtoyourlong－termhearthealth.NewresearchfromArteriosclerosis，Thrombosis，andVascularBiology，ajournal(期刊)oftheAmericanHeartAssociation，foundthathighteaconsumptionandpropercoffeecon

2、sumptionmaybeassociatedwithdecreasedratesofdeathfromcoronaryheartdisease(CHD)(冠心病)．Thestudyfollowedmorethan37,000teaandcoffeedrinkersover13years.Participantscompletedfoodrecallstodocumenttheirtypicalintakeofteaandcoffee，andweredividedintogroupsthatrangedfromlighttoheavyconsumption.Resea

3、rchersaccountedforvariables(变量)suchashealthhistories，height，weight，andwaistcircumference(腰围)andrecordedthenumberofdeathsfromcardiovascular(心血管的)diseaseandstrokeduringthestudyperiod.Overallresultsshowedthatconsumingmorethansixcupsofteaperdaywasassociatedwitha36%lowerriskofdeathfromheartd

4、iseasecomparedtoconsuminglessthanonecupofteaperday.Thereappearedtobenosuchprotectiveeffectoftea－drinkingatanyamountforriskofdeathfromstroke.Amongcoffeedrinkers，moreproperconsumptionlevels(2－3cupsperday)wereassociatedwiththegreatestriskreductionfordeathfromheartdisease(21%)comparedtodrin

5、kinglessthanonecupofcoffeeperday.Researchersacknowledgedcertaininconclusivevariableswithintheirfindings.Forexample，thedifferencebetweendecaffeinated(去咖啡因的)andregularcoffeecouldnotbeaccuratelyaccountedfor，norcouldspecificrecommendationsbemadefortypeoftea，thoughduetoitspopularityintheNeth

6、erlandswherethestudytookplace，researchersassumedmostteaconsumptiontobeblacktea.Furthermore，researchersfoundthatteaandcoffeedrinkershadoppositelifestyles，withteadrinkerstendingtoengageinhealthylifestylehabitsandcoffeedrinkersbeingmorelikelytoeatlesshealthilyandsmoke.Itwasdifficulttosaywi

7、thcertaintywhatimpacttheseotherlifestylevariablesmayhavecontributedtotheoverallresults.1．What'stheconclusionofthestudy?A．Peopleshoulddrinkteaandcoffeeasmuchaspossible.B．DrinkingmoreteamaybenefitpeoplewithCHD.C．Highteaconsumptionmayreducetherateofstroke.D．Coffeeconsumptionhasnot