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1、2019-2020年高考英语二轮复习科普环保类阅读理解选编（2）xx高考英语阅读练习——科普环保类ScientistsfromChina,SwedenandtheUnitedStatedhavedevelopedahigh-producingricethatcanreducemethaneemission(甲烷排放),amajorgreenhousegasblamedforglobalwarming,fromricefields,accordingtoapaperpublishedonthelate
2、stissueofNature.Byinsertingabarley(大麦)geneintorice,SunChuanxinandhiscolleaguescreatedSUSIBA2Rice,whichstoresmorestarch(淀粉)inthesectionofthericeaboveground,accordingtoapaperpublishedonthelatestissueofNature.Thismeansthegrainswillhavemorestarchwhilethero
3、otwillexudelessnutrientsthatwilllaterbeturnedintomethanebymicrobes(微生物)inthesoil,Sun,whoworkswithSwedishUniversityofAgriculturalSciences,toldXinhua."Itsolvestwomajorproblemsmankindfacesatonetime:environmentaldegradationandtheneedforincreasedgrainoutput
4、,"WangFeng,anotherscientist,said,addingthatthericecancutmethanedischargebymorethan90percentduringsummerandmorethanhalfduringautumn,as"thericedisplaysagreateremissionreductioneffectinhightemperatures."Meanwhile,small-scaletrialshavealsosuggestedanincrea
5、sedoutput:asingleplantofthenewbreedhas300moregrainswithastarchcontent10percenthigher.Wangsaidtheteamisworkingonapplicationsforthericeindifferentareas,seasonsandusingdifferentfarmingtechniques."It'sstillfarawayfrommassapplication,butatleastweseethelight
6、ofhope."Human-inducedmethane,thoughlessabundantthancarbondioxideintheair,isresponsiblefor20percentoftheglobalwarmingeffect.Ricepaddiesarethelargestsinglesourceofmethanelinkedtohumanactivity.AccordingtotheMinistryofAgriculture,Chinaproduces209millionton
7、sofriceinxx,or28percentoftheworld'stotalof734million.【小题1】SUSIBA2Ricewillbeamajorbreakthroughbecause_______.A．ittasteswithabarleyflavorB．itwellbalancesenvironmentalprotectionandgrainsincreaseC．itcontainsmorestarchthantheordinaryriceD．itgivesofflessmeth
8、aneinsummerthaninwinter【小题2】Whatcanwelearnfromthetext?A．ScientistswillsoongrowthenewriceinlargeareasB．Human-relatedmethanecontributesmosttoglobalwarmingC．ChinamaycontributegreatlytoglobalwarmingreductionD．Ricefieldswillbereducedallovert
