1、選詞填空選詞填空Unitone1.Intheproductionofgrainsfruitsvegetablestheagronomyresearchplaysa(an)instrumentalrole.2.Pestresistantstresstolerantcropscanbedevelopedtoreducetheriskofcropfailureduetodroughtdisease.3.Recombinantgenetechn
2、ologyiswidelyemployedinresearchdevelopmentfstrainimprovement.4.Allthesebrightlycoledhybridsaresolovelyinthegarden.5.Fbacteriatheyarebinary(二元的)fission(分裂生殖法)conjugation.6.Eachofthemhasacounterpartcolumninthedatabasetable
3、s.7.Plantbreedingmustbecoupledwithtransgenicimprovementtobringeconomicallyviableproductstothemarketplace.8.Cropsarederivedfromtheevolutionaryprocessasallotherlivingcreaturesfromthewildtothedomestic.9.Backcrossbreedingisa
4、usefulmethodtotransferfavableallelesfromadonparentintoarecipientparent.10.Attheconclusionoftherecurrentrunyoushouldgatherevaluatetheutilizationlevelsfallfourresourcescrops.Unittwo1.Howeverwhatonearthhasevokedfouremotions
5、of“MonaLisa”4.Untrammeledindustrializationparticularlyinthepocountriesiscontaminatingtheriveraquifer.5.Thepondissmallbutcansupptmanyaquaticplantsfish.6.Althoughallplantsnmallycontainfluine(氟)theconcentrationvariesgreatly
6、.7.Yourbodyisinsurvivalmodeneedsfoodtoreplenishitsenergy.8.Thedisrupteddrainagewillcausewholehillsidesofwaterloggeddriedoutpeat(泥炭)toslide.9.Theproductsmayservetoprotectthewatertanksenginesmetalpiecestopreventencrustatio
7、nraiseheatingratemefuelefficientenergy.10.Theerosiverainisdefinedasrainasrainwhichcancausesoilerosion.Unitsix1.Asaresultourincessantinteractionwithfoodtakesonimmensepowercandefinewhoweare.2.Finallyeachyearwewillvoluntari