2019中考英语二轮复习阅读理解精选（七）.docx

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1、2019中考英语阅读理解精选（七）第一篇（2019中考科普环保类选练）Todaythereare6billionpeopleontheearth.Bytheyear2050theremaybe12.5billion.Thismeansweneedmorefood.Onewaytoproducemorefoodisbygrowingstrongerplants.Forthousandsofyears,farmershavemadeplantsbetter.Everyseason,theypickthebes

2、tplantsforthenextseason.Itworksveryslowly.Since1983,scientistshavebeenabletochangeplantsmorequicklybychangingtheirgeneticmaterial(遗传物质).Foodsfromplantsgrowninthiswayarecalledgeneticallymodifiedfoods(转基因食品),orGMfoods.Bychangingthegeneticmaterialofaplant,it

3、ispossibletomakenewplants.Theymakeplantswhicharestrongagainstplantdiseases.Theycanalsohelpinourdiseases:akindofriceisbeingprepared(准备),forexample,whichstopspeoplefrombecomingblind.RichcountriesproduceGMfoodbecausetheyareeasytogrowandbringinmoremoney.Poorc

4、ountriesareinterestedinthembecausetheyhelpproducemorefood.GMplantsarenotnatural.Nooneknowshowgoodorbadtheyare.MakingGMfoodsisonlyonewayoffeedingpeoplein2050.Therearestrongfeelingsagainstthem,becausetheyareunnatural.Theymayfeedpeople,thenhurtthemortheirchi

5、ldrenlater.But,bothrichandpoorcountriesareveryinterestedintheiruse,andtheyarenotgoingtogoaway.In2050wemaythinkdifferentlyaboutthem.1．GMfoodsaremadeby  .                                                  A．farmers   B．workers   C．scientists D．plants2．Whatar

6、ethegoodthingsaboutGMfoods?                                         A．Theymakeplantsstrongagainstdiseases.      B．Theyareunnatural.      C．Theycanhelpinhumandiseases.      D．BothAandC.3．GMfoods   .                                                          

7、 A．areaquickwaytoproducefood   B．growinthewild      C．aresafe          D．aregrownonlyinrichcountries4．WhydosomepeoplenotlikeGMfoods?                                           A．Theyarenotuseful.B．Theyarenothelpful.      C．Theyarenotnatural.      D．Theyare

8、notcheap.5．Fromthereadingweknowthat .                                           A．GMfoodswilldisappearonedayinthefuture      B．GMfoodswillnotdisappearinthefuture      C．peoplewillnotbeinterestedinGMfood      D．peopl