2019-2020年高考英语二轮复习 科普环保类阅读理解（2）

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1、2019-2020年高考英语二轮复习科普环保类阅读理解（2）xx高考英语阅读练习——科普环保类Mosquitoeshaveanextraordinaryabilitytotargethumansfarawayandflystraighttotheirunprotectedskin.Regrettably，mosquitoescandomorethancauseanitchy(发痒的）wound.Somemosquitoesspreadseveralseriousdiseases，includingDengue，yellowfeverand malaria

2、.Overonemillionpeopleworldwidediefromthesediseaseseachyear.Newresearchnow  showshowmosquitoeschoosewhotobite.Mosquitoesneedbloodtosurvive.Theyareattractedtohumanskinandbreath.Theysmellthecarbondioxidegas，whichallmammalsbreatheout.Thisgasisthemainwayformosquitoestoknowthatawarm-bl

3、oodedcreatureisnearby.Butmosquitoesalsousetheireyesandsenseoftouch.MichaelDickinsonisaprofessorattheCaliforniaInstituteofTechnology.Hisresearchshowshowthesesmallinsects，withevensmallerbrains，usethreesensestofindabloodmeal.MichaelDickinson’steamusedplumes—amaterialthatrisesintothe

4、airofcarbondioxidegasintoawindtunnel.Theythenusedcamerastorecordthemosquitoes.Theinsectsfollowedtheplume.Then，thescientistsplaceddarkobjectsonthelighter coloredfloorandwallsofthe tunnel.Mr.Dickinsonsaid，atfirst，themosquitoesshowednointerestintheobjectsatall.     “Whatwasquitestri

5、kingandquitesurprisingisthatthemosquitoesflybackandforthforhours.Thesearehungryfemalesandtheypletelyignoretheobjectsonthefloorandwallofthetunnel.ButthemomenttheygetahitofCO2，theychangetheirbehaviorquiteobviouslyandnowwouldbeeattractedtotheselittlevisualblobs(斑点）.”Thissuggestedtot

6、heresearchersthatamosquito’ssenseofsmellismoreimportantinthesearchforfood.Oncemosquitoescatchasmellofahuman oranimal，theyalsofollow visualsignals.【小题1】Whatdomosquitoesmainlyusetofindtheirtargets?A．Senseofsmell.B．Senseoftouch.C．Senseofsight.D．Smartbrains.【小题2】Thefirstresponseofthe

7、mosquitoestotheobjectsintheexperimentis     .A．toflytothedarkonesB．tocatchandsticktothemC．totakenonoticeofthemD．toattachthemselvestothem【小题3】Howcanweavoidbeingattackedbymosquitoesaccordingtothetext?A．Don’tletthemseeus.B．Usedarkobjectstostopthem.C．Makethemflybackandforthforhours.D

8、．Attractthemtoobjectsfullofcarbondioxide