2013高考英语二轮阅读理解训练14

《2013高考英语二轮阅读理解训练14 》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、2013高考英语二轮阅读理解训练14：（答案）热身训练Scientificexperimentscansometimesgowrongandwhentheydotheresultsmayrangefromthedisastroustothetroubling.OnesuchexperimenttookplaceinSouthAmericaaboutfiftyyearsago.Whetheritsfinalconsequenceswillcauseseriousdamageornothingmorethanasmalltroublestillremainstobesee

2、n.Thestorybeganin1956whenanAmericanscientistworkinginBrazildecidedtosolvetheproblemofincreasingtheproductivityofthatcountry’sbees.HeimportedaveryactivetypeofAfricanbeefromTanzaniaandmated(交配)itwiththemoreeasy-goingnativevarietytoproduceanewkindofbees.Thenewbeesworkedharderandproducedtwi

3、ceasmuchhoney.ItseemedthatProfessorKerr,forthatwasthescientist'sname,hadatotalsuccessonhishands.Thenthingsbegantogowrong.Forsomereasonasyetunseen,butperhapsasaresultofsomethingintheirenvironment,thenewbeesbegantodevelopextremelyattackingpersonalities.Theybecamebad-temperedandeasytobeang

4、ry,attackedthenativebeesanddrovethemfromtheirlivingplaces.Butworsewastofollow.Havingtakenoverthecountryside,thenewbees,withtheirdangerousstings(叮),begantoattackitsneighbors--cats,dogs,horses,chickensandfinallymanhimself.Alongperiodofterrorbeganthathassofarkilledagreatnumberofanimalsanda

5、bout150humanbeings.ThiswouldhavebeenbadenoughifthebeeshadstayedinBrazil.Butnowtheyareonthemove,headingnorthwardsincountlessmillionstowardsCentralandNorthAmerica,andmovingatthealarmingspeedof200milesayear.Thecountriesthatlieintheirpatharenaturallyworriedbecauseitlooksasifnothingcanbedone

6、tostopthem.41.TheresultsoftheSouthAmericanexperiment.A.havecausedaserioustroubleB.haveprovedtobewrongC.arenotyetcertainD.arenotimportant42.Theexperimentmentionedinthispassagewasdesignedto.A.increasetheamountofhoneyinBrazilB.makeBrazilianbeesmoreeasy-goingC.increasethenumberofbeesinBrazi

7、lD.makeAfricanbeeslessactive43.Whichofthefollowingmaybethecauseofthenewbees'attackingpersonalities?A.Theirproductionofhoney.B.Theirhardwork.C.Theirlivingenvironment.D.Theirbadtemper.44.Thelastparagraphimpliesthat.A.thebeeshavebeendriventoCentralandNorthAmericaB.thebeesmaybringa