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1、Midautumn2011biologyexamforgradeeight(fullmarks:100points;examinationtime:60minutes)Dearstudents,theexaminationistheresultoftheireffortstoevaluate,aslongasyouareserious,careful,carefulandpatient,willcertainlydoagoodjob・Comeon,meetyourchallenge!Pleasecarefully
2、readtherequirements,carefully,theanswer,IbelieveIcando.Volume1(multiple-choicequestions,50points)Asinglechoice:fouroptionsforeachofthefollowingitemsinonlyoneoptionistodo,pleasecorrectoptionlettersinbrackets・(right2)1,whenweeatpeanuts,mainlytoeatitA.testaB.,en
3、dospermC.,cotyledonD.embryo2.TheroleorcharacteristicofcotyledonsintheseedsofdicotyledonousplantsThere'sonlyonepieceofA.,itdoesn，tworkB.absorbslargeamountsofnutrientsandstoresthemintotheendospermA.storeslargeamountsofnutrientsA.becomesanewleafaftergermination3
4、,suitableforsowingseeds,germinationrateshouldgenerallybein()A.85%above,aboveB.90%,aboveC.95%,75%above4,〃toonpengtouseedsoaking,thisproverbshowsimportantinfluencewhichconditionsonseedgermination()A.suitabletemperatureB・adequatemoistureC.amp1eair;D.seed，sowncon
5、dition5,Themainstructureofwaterabsorptioninplantrootsis()A.roottipofroottipB.,meristematiczoneofroottipC.,elongationzoneofroottip,D.maturezoneofroottip6,Usually,farmersshouldbringalumpofsoilwhentheytransplantplants,forthepurposeof()A.keepssoilmoistureB・andavo
6、idsdamagetotheroottipsC.ensuresthatthesoilisD・andthesoillumpisnoteasilycleared7,rapeappearsonlyfloweringwithoutresult,needtobeapplied()A.inorganicsaltscontainingboron;B.inorganicsaltscontainingironC.inorganicsaltscontainingsulfur;D.inorganicsaltscontainingpho
7、sphorus3,Iplantedatreeofspinach,overaperiodoftimethatdwarfplants,newleafgreen,yellowleafscorch,whichmostlikelyisthelackof()A.inorganicsaltscontainingnitrogen;B.inorganicsaltscontainingphosphorusC.inorganicsaltcontainingpotassium;D.inorganicsaltscontainingiron
8、4,toimprovecottonyield,shouldtakemeasures(training)SomebranchesofA.tocutthecottoncottontoppingB・C.toremovealargenumberoflateralbudsofD.cottonalotofmanure5,Intheexperimentof"greenleavessyn
