专题限时训练(三十二)[说明文型阅读简答(一)](限时：25分钟)(一)Australianscientistshavedefendedtheirconclusionthatclimatechangeisdecreasingthewidthofleaves.TheresearchbyDrGregGuerinandhiscolleaguesoftheUniversityofAdelaide,foundalinkbetweenincreasingtemperaturesandanarrowinginleavesofaparticularspeciesofplantthatgrowsintheMediterraneanclimateofSouthAustralia.“Ifitwashotbutalsowet,theplantcouldevaporate(使蒸发)wateroutofitsleavestokeepcool,butbecauseit'ssodry,especiallyinsummer,theplantscan'taffordtodothat，”saysGuerin.“Anotherwaytokeepcoolistohavenarrowerleavesthatdon'tgetashotandcooldownquicker.”ButDrRichardDuncanfromLincolnUniversityinNewZealandreanalysesthedatasuppliedbyGuerinandhiscolleaguesandcomestoadifferentconclusion.“Thereis…noevidenceofalinkbetweenchangesinmeanleafwidthandrecentclimatewarming，”writesDuncan.Guerinandhiscolleaguesoriginallymeasuredleavesfromspecimens(标本)collectedbetween1882and2001.Inthestudy,theyfoundleavesgrowingclosertotheequatorwerenarrowerthanthosegrowingfurtherawayandleafwidthhaddeclinedoverthestudyperiod,coincidingwitharecentwarmingoftemperatures.Butinhisanalysis,DuncansplitGuerinandhiscolleagues'dataintotwotimeperiods—beforeabout1950whenstatetemperatureswerefairlysteady,andafterthattimewhentheywereontherise.Hesaysleafnarrowingoccurredprevioustoabout1950beforethebeginningofwarmingandremainedconstantafterthattime,aperiodduringwhichtemperaturesincreased.ButGuerinandhiscolleagueProfessorAndrewLowedefendtheiroriginalfindings,sayingthattheleafdatabeforeabout1950isverysmallinnumberandthismeansit'simpossibletosplitthedataintothetwoperiodsDuncanusedandget“statisticallyreliable”results.1．AccordingtoDrGregGuerin,howdoestheplantkeepcoolinhotbutwetweather？(Nomorethan8words)________________________________________________________________________2．WhyaretheleavesinSouthAustraliabecomingnarrower?(Nomorethan7words)________________________________________________________________________3．AfterreanalysingthedatasuppliedbyGuerinandhiscolleagues,whatdoesDrRichardDuncanconclude?(Nomorethan15words)________________________________________________________________________4．IntheopinionofDrGregGuerinandhiscolleague,whyareDrRichardDuncan'sresultsunreliable？(Nomorethan15words)________________________________________________________________________(二)Advertisinghasbecomethemostimportantmarketingtoolforcompaniestolaunchtheirproductsonthemarket.Withtheprintandelectronicmediabecominganimportantpartoflife,advertisingplaysasignificantroleinthesuccessofnewproducts.Successfuladvertisingcampaignsviewcustomersaskings,andoncetheyloveaproduct,it'ssuretobecomeapopularbrand.Fromsoftdrinkstoshampoosorluxurycars,advertisingcancreateacompletelydifferentworldforaproductandthecompany.Themagicofsuccessfuladvertisingcampaignsissuchthatproductsjustdon'tremainthings—theymoveontobecomebrandsintheeyesofconsumers.Theimportanceofmarketingintoday'sbusinessenvironmentisundoubtedlyimmense.Nofirmcansitbackandwatchtheircompetitorstakeoverthemarket.Choosingtherighttimetolaunchaproductisoneoftheessentialfactorsindecidingthefateofanewlaunch.Marketingstrategiesgovernthesuccessofproductsandadvertisingformsapartofamarketingplan.Belowaresomebasicparameters(决定因素)ofsuccessfulmarketingtohelpyouknowtheanswertothequestion“Howtodevelopasuccessfuladvertisingcampaign？”Toensurethattheadver...
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