北京大学16秋季 36081003-大学英语3-第三组.doc.docVIP

一、阅读理解(共10题，每题2分，共20分) 请阅读以下文章，回答文章后的五个小题。每个小题只有一个最佳选项。 1）. Itseemslikeeverydaythere’ssomenewresearchaboutwhetherourfavoritedrinksaregoodforus.Oneday,sciencesaysaglassofredwineadaywillhelpuslivelonger.Thenextday,maybenot.Itseemsjournalistsareprettyinterestedinwineresearchandthesamemightbesaidforcoffee.Now，therehasbeenalotofresearchintowhethercoffeeisgoodforourhealth.“Theresultshavereallybeenmixed,”admitsNealFreedmanwholedthecoffeestudyandpublishedhisfindingsinamedicaljournalrecently.“There’sbeensomeevidencethatcoffeemightincreasetheriskofcertaindiseasesandthere’salsobeenmaybemorerecentevidencethatcoffeemayprotectagainstotherdiseasesaswell.” Freedmanandhiscolleaguesundertookthebiggeststudyyettolookattherelationshipbetweencoffeeandhealth.Theyanalyzeddatacollectedfrommorethan400,000Americansages50to71participatinginthestudy.“Wefoundthatthecoffeedrinkershadamodestlylowerriskofdeaththanthenon-drinkers，”hesaid.Here’swhathemeansby“modestly”：thosewhodrankatleasttwoorthreecupsadaywereabout10percentor15percentlesslikelytodieforanyreasonduringthe13yearsofthestudy.Whentheresearcherslookedatspecificcausesofdeath,coffeedrinkingappearedtocuttheriskofdyingfromheartdisease,lungdisease,injuries,accidentsandinfections. Now,Freedmanstressedthatthestudydoesn’tprovecoffeecanmakepeoplelivelonger.Astudylikethiscanneverproveacause-and-effectrelationship.Allitcanreallydoistopointresearchersintherightdirectionforfurtherinvestigation.Andevenifitturnsoutthatcoffeeisreallygoodforyou,scientistshavenoideawhy. 1. Accordingtotheauthor,scientists___. A.havealreadyprovedthatcoffeeisgoodforhumanhealth B.havealongwaytogobeforetheyfindawaytostudycoffee C.haveavoidedthecause-and-effectapproachtostudycoffee D.arestillunabletofigureoutwhycoffeeisgoodforus 2. Accordingtothefirstparagraph,reporterswouldliketoknowtheresearchfindingsof___. A.tea B.beer C.alcohol D.coffee 3. Theword“mixed”inthefirstparagraphmeans“___”. A.bothgoodandbad B.puttogether C.bothsharpandsoft D.confused 4. Whichofth