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1、2019(届)中考英语阅读理精题(三)第一篇(2019中考科普环保类选练)Todaythereare6billionpeopleontheearth.Bytheyear2050theremaybe12.5billion.Thismeansweneedmorefood.Onewaytoproducemorefoodisbygrowingstrongerplants.Forthousandsofyears,farmershavemadeplantsbetter.Everyseason,theypickthebestpl
2、antsforthenextseason.Itworksveryslowly.Since1983,scientistshavebeenabletochangeplantsmorequicklybychangingtheirgeneticmaterial(遗传物质).Foodsfromplantsgrowninthiswayarecalledgeneticallymodifiedfoods(转基因食品),orGMfoods.Bychangingthegeneticmaterialofaplant,itispossib
3、letomakenewplants.Theymakeplantswhicharestrongagainstplantdiseases.Theycanalsohelpinourdiseases:akindofriceisbeingprepared(准备),forexample,whichstopspeoplefrombecomingblind.RichcountriesproduceGMfoodbecausetheyareeasytogrowandbringinmoremoney.Poorcountriesarein
4、terestedinthembecausetheyhelpproducemorefood.GMplantsarenotnatural.Nooneknowshowgoodorbadtheyare.MakingGMfoodsisonlyonewayoffeedingpeoplein2050.Therearestrongfeelingsagainstthem,becausetheyareunnatural.Theymayfeedpeople,thenhurtthemortheirchildrenlater.But,bot
5、hrichandpoorcountriesareveryinterestedintheiruse,andtheyarenotgoingtogoaway.In2050wemaythinkdifferentlyaboutthem.1.GMfoodsaremadeby . A.farmers B.workers C.scientists D.plants2.WhatarethegoodthingsaboutGMfo
6、ods? A.Theymakeplantsstrongagainstdiseases. B.Theyareunnatural. C.Theycanhelpinhumandiseases. D.BothAandC.3.GMfoods . A.areaquickwaytoproducefood
7、 B.growinthewild C.aresafe D.aregrownonlyinrichcountries4.WhydosomepeoplenotlikeGMfoods? A.Theyarenotuseful.B.Theyarenothelpful. C.Theyarenotnatural. D.Theyarenotcheap.5.Fromthereadingweknowth
8、at . A.GMfoodswilldisappearonedayinthefuture B.GMfoodswillnotdisappearinthefuture C.peoplewillnotbeinterestedinGMfood D.peo
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