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1、考研英语阅读综合辅导阅读综合辅导[生物学类]题目序号题型归类第1题细节推导题型第2题写作手法题型第3题审题定位与中心主旨题型第4题词汇题型第5题审题定位题型 Flatfish,suchastheflounder,areamongthefeatebilateralsymmetry(symmetryinidlinearemirrorimages).Moststrikingamongthemanyasymmetriesevidentinanadultflatfishiseyeplacement:beforematurity
2、oneeyemigrates,sothatinanadultflatfishbotheyesareonthesamesideofthehead.ostspeciesmetriesvirtuallyalladultssharethesameasymmetry,membersofthestarryflounderspeciescanbeeitherleft-eyed(botheyesontheleftsideofhead)orright-eyed.Intheabout50percentleft-eyedofftheUnit
3、edStatespliesthatageometricdifference(betirrorimagesofoneanother)isadaptive,thatleft-eyednessintheJapanesestarryflounderhasbeenselectedfor,metrysimplybyturningaroundhascausedbiologiststostudyinternalanatomy,especiallytheopticnerves,fortheansmetry,asoneopticnerve
4、mustcrossaboveorbelople,aflatfish’slefteyemigratedightbemechanicallydisadvantageous.Forstarryflounders,then,theleft-eyedvarietyost. Theproblemostexclusivelyleft-eyed,andnaturalselectionneverpromotesapurelylessadvantageousvariation.Asotherexplanationsprovedequal
5、lyuntenable,biologistsconcludedthatthereisnoimportantadaptivedifferencebeteotheradaptivelysignificantcharacteristic.Thissituationisonemonlyencounteredbyevolutionarybiologists,ustoftendecidemostotherspeciesofflatfishinthatstarryflounder[A]arenotbasicallybilateral
6、lysymmetric.[B]donotbeeasymmetricuntiladulthood.[C]donotallsharethesameasymmetry.[D]havebotheyesonthesamesideofthehead.2.adeandsupportingevidenceissuppliedandodified.[D]Aseriesofobservationsispresentedandexplainedintermsofthedominanttheory.3.Thetextsuppliesinfor
7、mationforansostlyleft-eyed?[B]ilartoaclineasitisdescribedinthesecondparagraphofthetext?[A]Avegetablemarketinsaregroupedaccordingtoplaceoforigin.[B]Aaximumprofit.[C]Afloentinthetextbestexpressestheauthor’sconclusionaboutthemeaningofthedifferencebetechanicallydisa
8、dvantageous”(line7,paragraph3)[D]“evolutionaryredherring”(line9,paragraph4)[答案与考点解析]1.【答案】C【考点解析】这是一道细节推导题。根据本题题干中的“mostotherspecies”可以把本题的答案信息确定在第一段的第三句，从第三句的主从句中可以归
