mosquitoes have an extraordinary ability to target humans far away 阅读理解答案

《mosquitoes have an extraordinary ability to target humans far away 阅读理解答案》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、Mosquitoeshaveanextraordinaryabilitytotargethumansfaraway阅读理解答案　　根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多余选项。　　Mosquitoeshaveanextraordinaryabilitytotargethumansfarawayandflystraighttotheirunprotectedskin.　　?_____(36)_____.Somemosquitoesspreadseveralseriousdiseases,includingDengue,yellow

2、feverandmalaria.Overonemillionpeopleworldwidediefromthesemosquito-bornediseaseseachyear.　　?Newresearchnowshowshowmosquitoeschoosewhotobite._____(37)_____.Theyareattractedtohumanskinandbreath.Theysmellthecarbondioxidegas--whichallmammalsbreatheout.Thisgasishowmosquitoesknowthatawarm-bl

3、oodedcreatureisnearby.____(38)_____.　　MichaelDickinsonisaprofessorattheCaliforniaInstituteofTechnology.Hisresearchshowshowthesesmallinsects,withevensmallerbrains,usethreesensestofindabloodmeal.“Wesuspectedfromresearchthatwehadbeendoingonfruitfliesthatvisionmightplayaverylargeandundera

4、ppreciatedroleinallowingthemosquitotoreallyhomeinonthepotentialhosttarget.”　　?MichaelDickinson’steamusedplumes-materialthatrisesintotheair--ofcarbondioxidegasintoawindtunnel（隧道）.______(39)_____.Theinsectsfollowedtheplume.Then,thescientistsplaceddarkobjectsonthelightercoloredfloorandwa

5、llsofthetunnel.　　?Mr.Dickinsonsaid,atfirst,themosquitoesshowednointerestintheobjectsatall.”Whatwasquitestrikingandquitesurprisingisthatthemosquitoesflybackandforthforhours--thesearehungryfemales--andtheycompletelyignoretheobjectsonthefloorandwallofthetunnel.Butthemomentthattheygetahit

6、ofCO2,theychangetheirbehaviorquitedramaticallyandnowwouldbecomeattractedtotheselittlevisualblobs（斑点）.”_____(40)_____.　　A.Butmosquitoesalsousetheireyesandsenseoftouch.　　B.Oncemosquitoescatchasmellofahumanoranimal,theyalsofollowvisualcues.　　C.Regrettably,mosquitoescandomorethancauseanit

7、chywound　　D.Theythenusedcamerastorecordthemosquitoes.　　E.Mosquitoesneedbloodtosurvive.　　F.Thestudy,publishedinCurrentBiology,detailsthestepsofthemosquito’sflightsothatwemayonedayhaveafightingchanceagainstthebitinginsect.　　G.Thissuggestedtotheresearchersthatamosquito’ssenseofsmellismor

8、eimpo