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ID:35899826
大小:86.50 KB
页数:15页
时间:2019-04-23
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1、Unit7TheSea第Ⅰ卷第一部分 听力(略)第二部分 阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。AAbouttenmenineveryhundredsufferfromcolorblindnessinsomeway.Womenareluckier;onlyaboutoneintwohundredisaffectedinthismatter.Perhaps,afterall,itissafertobedrivenbyawoman!Therearedifferentformsofcol
2、orblindness.Insomecases,amanmaynotbeabletoseedeepred.Hemaythinkthatred,orangeandyellowareallshadowsofgreen.Sometimesapersoncannottellthedifferencebetweenblueandgreen.Inrarecases,anunluckymanmayseeeverythinginshadesofgreen—astrangeworldindeed.Colorblindnessinhumanbeingsisastrangethingtoexplain.In
3、asingleeyetherearemillionsofverysmallthingscalled“cones(圆锥细胞)”.Thesehelpustoseeinabrightlightandtotelldifferencebetweencolors.Therearealsomillionsof“rods(杆状细胞)”,buttheseareusedforseeingwhenitisneardark.Theyshowusshapesbutnocolors.Someinsectshavefavoritecolors.Mosquitoes(蚊子)preferbluetoyellow.Are
4、dlightwillnotattractinsects,butabluelampwill.Inasimilarwayhumanbeingsalsohavefavoritecolors.Yetwearelucky.Withtheaidoftheconesinoureyeswecanseemanybeautifulcolorsbyday,andwiththeaidoftherodswecanseeshapesatnight.Onedaywemayevenlearnmoreabouttheinvisiblecolorsaroundus.21.Thepassageismainlyabout.A
5、.coloranditssurprisingeffectsB.womenbeingluckierthanmenC.dangercausedbycolorblindnessD.colorblindness答案 D解析 主旨大意题。本文主要讲述的是“色盲”,介绍了色盲形成的原因,并说明了昆虫对颜色的偏好。故D项正确。22.Accordingtothepassage,withthehelpofthe“cones”,wecan.15A.telldifferentshapesB.seeinaweaklightC.killmosquitoesD.tellorangefromyellow答案 D解析
6、 细节理解题。根据第三段中的第二、三两句“Inasingleeyetherearemillionsofverysmallthingscalled‘cones’.Thesehelpustoseeinabrightlightandtotelldifferencebetweencolors.”可知,cones可帮助我们辨别颜色。故D项正确。23.Whydosomepeoplesayitissafertobedrivenbywomen?A.Womenaremorecareful.B.Therearefewercolorblindwomen.C.Womenarefonderofdrivingth
7、anmen.D.Womenareweakerbutquickerinthinking.答案 B解析 细节理解题。根据第一段“Abouttenmenineveryhundredsufferfromcolorblindnessinsomeway.Womenareluckier;onlyaboutoneintwohundredisaffectedinthismatter.Perhaps,afterall,itissafertobedrivenbyaw
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