2018年中考英语真题分类汇编--阅读理解--饮食、卫生与健康有解析

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1、2018年中考英语真题分类汇编--阅读理解--饮食、卫生与健康有解析专项训练八饮食、卫生与健康时间：8～10分钟/篇分值：2分/小题Passage1(2018天津)Manypeopletraveltodifferentplacesintheworldbyair.Usuallyittakesalongtime,perhapshalfaday,forpassengerstostayintheplane.Soairlines(航空公司)offerpassengersfood.Butitiscommont

2、hattheyfeelbadaboutfoodtaste.Doyouagree?Tosolvethisproblem,airlinestryhardtoimprovetheirfood.Theywouldliketodosobecausetheydon'twanttolosecustomers.However,accordingtoscientificresearch,partofthereasonwhyplanefoodtastesbadisthatathighaltitude(海拔)wecan

3、nottastethingsaswellaswedoontheground.Alsoscientistshavefoundthatournosesbecomeverydryevenbeforeaplanetakesoff.Astheplanemovesup,thechangeinairpressure(气压)reducesonethirdofthesensibility(感觉)ofourtastebuds(味蕾).Soourtastebudsbecomesenseless.Thesadfact,h

4、owever,isthatournosesdon'tknowit.Allofthesehelpexplainwhyfoodontheplanetastessobad.Theyalsohelpexplainwhyairlineschoosetoofferpassengerssaltyandspicy(辛辣的)food.Withoutdoingso,thefoodwouldbetasteless.Nowtherearemanyresearchesonthis.Accordingtooneofthem,

5、somevolunteersareaskedtoliewiththeirfeethigherthantheirheadsforweeks.Andscientistswritedowntheirfeelingsaboutfoodtaste.Thoughscientiststrytheirbest,itisnotaseasyastheythought.Becausetheycan'tdealwiththespecialenvironmentsuccessfully,suchasthechangeina

6、irpressure,makingfoodtastegoodisstillhardforthem.()1.InParagraph2,“thisproblem”means________．A.passengersstaylongintheplaneB.foodontheplanetastesbadC.passengershavenofoodtoeatD.foodontheplaneisexpensive()2.Whatdoairlinesdotosolvethisproblem?A.Getmorec

7、ustomers.B.Offermorefood.C.Improvetheirfood.D.Reducetheticketprice.()3.Astheplanemovesup,thechangeinairpressurereduces________ofthesensibilityofourtastebuds.A.halfB.onethirdC.onefourthD.onefifth()4.Whydoscientistsfeelithardtomakefoodontheplanetastegoo

8、d?A.Thevolunteersdon'tknowaboutfoodtaste.B.Thevolunteersdon'tunderstandthem.C.Theycan'tfindenoughvolunteers.D.Theycan'tdealwiththespecialenvironmentsuccessfully.()5.Whatisthebesttitleofthepassage?A.TasteofAirplaneFoodB.AirplaneTravelC.Scientif