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1、七年级生物期末考试题2First,pleaseselect:(thetotalof15questions,eachquestion3points,atotalof45points・Everydaythereisonlyonerightenswer,pleasefillinthefollowingcoderightansweranswerbar)1.Thegasexchangebetweenthelungandtheoutsideisachievedbybreathing.Whenthevolumeofthechestexpands,therelationbetweenth
2、epressureofthelungsandtheatmosphericpressureisA.greaterthanatmosphericpressureB.equalsatmosphericpressureC.islessthanatmosphericpressure,D.isgreaterthanatmosphericpressure,lessthanatmosphericpressure2whatyouthinkiscorrectinthefollowingstatements?A.whenthehumanbodybreathes,theexhaledgasisa
3、llcarbondioxideB.lungissuitableforgasexchangebecausethealveolarwallisclosetothewholeandhasonlyonelayerofepithelialcellsC.gasexchangebetweenthehumanbodyandtheexternalenvironmentisaccomplishedbythediffusionofgas.D.justbreathedeeply.Inordertoremoveallthegasinsidethealveoli.3,inanenvironment,
4、ifthebodyhastheobviousfeelingofair,symptoms,suchaseyediscomfort,phlegm,asthma,etc•・AirqualityA.wasseriouslypolluted,B・wasmild,C.wasmild,andD.wasmoderatelypolluted3,theancientChinesemedicalclassics〃NeiJing〃mentionedthatwhenpiercedvessels,somebloodvessels"stabcanshoot",andsomevascular，zcann
5、otshoot・〃“.ThetwovesselsareinturnA.artery,B・,vein,artery,C.,artery,vein,D・,vein,vein4,ThestructureassociatedwiththermoregulationinthehumanskinisA.sweatglandsanddermalvascularB.hairandepidermisC.sweatglandsandepidermis,D.sweatglandsandsebaceousglands5,themiceinjectedwithacertaindoseofinsul
6、in,themiceinastateofshock,tomakeitwakeup,buttherightamountofinjectionA.insulin,B.protein,C.,physiologicalsaline,D.glucose6,thenervoussystemconsistsoftwoparts,theyA.nervecenteroftheperipheralnerve,B.graymatterandwhitematterC.thecentralnervoussystemandtheperipheralnervoussystem,D.,brain,and
7、spinalcord7,sometimeagoinChinatherehavebeenseveralcasesoftypeH1N1influenzacases,inordertoeffectivelypreventthespreadofthediseaseandepidemic,andthepatient(orsuspectedcases)contactshavebeenisolated,thismeasurebelongstoA.eliminatespathogens,B.controlsthesourceofinfecti
