高考英语第一轮复习单元检测卷5

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1、www.ks5u.comⅠ.阅读理解(2017·湖北武汉高三起点调研)IntheAmazonrainforestsofBrazil，scientistshavediscoveredanewspeciesofant.Theinsecthasnoeyes.Itsbodyispale.Anditsmouthpartsarelongerthantherestofitshead.Ifyouhappenedtocrosspathswiththestrangeant，youmightimaginethatitbelongst

2、oanotherplanet.Evenitsname—MartialisHeureka—playfullysuggeststhatitcamefromMars.ChristianRabeling，fromtheUniversityofTexasatAustin，discoveredthenewspeciesamongthefallenleavesoftherainforest.Buthedidmorethanjustnoticehowstrangetheantlooks.Healsoanalyzeditsgen

3、eticmaterial，orDNA.ComparingDNAamongspeciescangivescientistsinsightsintofamilytrees：ThemoreDNAtwospeciesshareincommon，themorecloselyrelatedtheyare，andthemorerecentlytheysplitofffromacommonancestor.Rabeling'sDNAanalysisofMartialisHeurekashowedthatthespeciesis

4、onlydistantlyrelatedtootherantspecies.Thelasttimescientistsfoundanewsubfamilyoflivingantswasin1923，saythediscoverers.TheDNAanalysisalsosuggestedthatMartialisHeurekaappearedonearthearlierthananyotherantlivingheretoday.Andobservationssuggestedthattheantlivesun

5、derground：palenessandblindnessaretwomajorclues.Someoftheotheroldestknownantspeciesalsoliveunderground.Sonow，scientistsaretryingtofigureoutwhetherantsfirstevolved(进化)underground，oriftheyevolvedabovegroundandthenwentunder.Sofar，Rabelinghascollectedonlyoneantfr

6、omthenewspecies.Findingmorespecimens，hehopes，willhelpusbetterunderstandthescienceandhistoryofantsonearth.语篇导读本文是一篇说明文，讲述的是新发现的一种名为MartialisHeureka的蚂蚁物种以及这种蚂蚁的主要特性。1．WhatwasChristianRabeling'sreactionwhenhefirstfoundMartialisHeureka?A．Hethoughtitwascommon.B．H

7、edidnothingbutlookatit.C．Hebegantodoresearchonit.D．HebelieveditwasfromMars.解析：C　细节理解题。根据题干关键词reaction对应文章中第二段最后两句可知，他不仅仅是注意到奇怪的蚂蚁，他还分析了其遗传物质或DNA，故选C项。2．Whatindicatestheantlivesundergroud?A．Itsappearance.B．Itsancestor.C．Itsage.　　　　D．Itsfamily.解析：A　细节理解题。根据第四段

8、最后一句“…observationssuggestedthattheantlivesunderground…”可知选A项。3．Whatshouldbedonetounderstandantsbetter?A．Tocollectmoreofthem.B．Toknowhowtheyevolved.C．Todiscoverwheretheylive.　　　　D．Tofindmorehisto