2018年中考英语专题复习分类集训（真题版）：题型三 阅读理解 专项训练八　饮食、卫生与健康.doc

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1、时间：8～10分钟/篇　　分值：2分/小题Passage1(2016天津)Manypeopletraveltodifferentplacesintheworldbyair.Usuallyittakesalongtime,perhapshalfaday,forpassengerstostayintheplane.Soairlines(航空公司)offerpassengersfood.Butitiscommonthattheyfeelbadaboutfoodtaste.Doyouagree?Tosolvethisproble

2、m,airlinestryhardtoimprovetheirfood.Theywouldliketodosobecausetheydon'twanttolosecustomers.However,accordingtoscientificresearch,partofthereasonwhyplanefoodtastesbadisthatathighaltitude(海拔)wecannottastethingsaswellaswedoontheground.Alsoscientistshavefoundthatourn

3、osesbecomeverydryevenbeforeaplanetakesoff.Astheplanemovesup,thechangeinairpressure(气压)reducesonethirdofthesensibility(感觉)ofourtastebuds(味蕾).Soourtastebudsbecomesenseless.Thesadfact,however,isthatournosesdon'tknowit.Allofthesehelpexplainwhyfoodontheplanetastessoba

4、d.Theyalsohelpexplainwhyairlineschoosetoofferpassengerssaltyandspicy(辛辣的)food.Withoutdoingso,thefoodwouldbetasteless.Nowtherearemanyresearchesonthis.Accordingtooneofthem,somevolunteersareaskedtoliewiththeirfeethigherthantheirheadsforweeks.Andscientistswritedownth

5、eirfeelingsaboutfoodtaste.Thoughscientiststrytheirbest,itisnotaseasyastheythought.Becausetheycan'tdealwiththespecialenvironmentsuccessfully,suchasthechangeinairpressure,makingfoodtastegoodisstillhardforthem.(　　)1.InParagraph2,“thisproblem”means________．A.passenge

6、rsstaylongintheplaneB.foodontheplanetastesbadC.passengershavenofoodtoeatD.foodontheplaneisexpensive(　　)2.Whatdoairlinesdotosolvethisproblem?A.Getmorecustomers.　　　B.Offermorefood.C.Improvetheirfood.D.Reducetheticketprice.(　　)3.Astheplanemovesup,thechangeinairpress

7、urereduces________ofthesensibilityofourtastebuds.A.half　　B.onethird　　C.onefourth　　D.onefifth(　　)4.Whydoscientistsfeelithardtomakefoodontheplanetastegood?A.Thevolunteersdon'tknowaboutfoodtaste.B.Thevolunteersdon'tunderstandthem.C.Theycan'tfindenoughvolunteers.D.Th

8、eycan'tdealwiththespecialenvironmentsuccessfully.(　　)5.Whatisthebesttitleofthepassage?A.TasteofAirplaneFoodB.AirplaneTravelC.ScientificResearchonNosesD.TheChan