2017-2018学年第二学期期中试题高二英语第Ⅰ卷(选择题,共55分)第一部分:阅读理解(共两节,满分60分)第一节:(共15小题;每小题3分,满分45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
AManypeoplesufferfromcolorblindnessinsomeway
Womenareluckier,onlyaboutoneintwohundredisaffectedinthismatter
Perhaps,afterall,itissafertobedrivenbyawoman
Therearedifferentformsofcolorblindness
Insomecasesamancannotseedeepred
Hemaythinkthatred,orangeandyellowareallshadesofgreen
Sometimesapersoncannottellthedifferencebetweenblueandgreen
Inrarecasesanunluckymanmayseeeverythinginshadesofgreen—astrangeworldindeed
Colorblindnessinhumanbeingsisastrangethingtoexplain
Inasingleeyetherearemillionsofverysmallthingscalled“cones”
Thesehelpustoseeinabrightlightandtotelldifferencebetweencolors
Therearealsomillionsof“rods”buttheseareusedforseeingwhenitisnearlydark
Theyshowusshapebutnocolor