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12024全国高考分科综合卷 老高考(四)4化学试卷答案

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D.Dosomecomplexmathematicalcalculations.27.Whatisthebesttitleforthetext?A.Ada,anAdvancedComputerLanguageB.CharlesBabbage,thePioneerofComputersC.AnalyticalEngine,theFirstModernComputerD.AdaLovelacc,theFirstComputerProgrammerCEightmonthsafterChinaputa10-yearbanonfishingintheYangtzeRiver,agroupofabout10Yangtzefinlessporpoises()wereseenintheriverofWuhan,HubeiProvince.Theirappearancewassaidtobearesultoflessinterference()fromhumanactivitiesoranincreasefoodavailability."Risingwatcrleveisduringthefloodseasonandthefishingbanmaybothcontributetothisrareanimal'sappearance.Withoutinterferencefromhumanactivitics,thefinlessporpoisesmightbemorcactive,"saidZhangXianfeng,anaquatic(水生：的)wildliferesearcher..ThefinlessporpoiseiswidelybelievedtobeanimportanthealthindicatoroftheYangtzeRiver.Overthepast40years,itspopulationhasdeclineddramaticallyduetomanyfactors,suchasclimatechangeandhabitatloss.In2013,itwasclassifiedas"criticallyendangered"bytheInternationalUnionforConservationofNature.However,thepopulationhasshownsomcstabilityinrecentyearsthankstojointprotectionfromgovernmentorgans,researchinstitutesandothersocialorganizations.Zhangbelievesit'sagoodthingthatthepublichasbecomemoreawareoftheurgencyofsavingthefinlessporpoiseandprotectingtheecosystemoftheYangtzeRiver.However,theappearanceofthefinlessporpoisescannotnecessarilybeseenasasignthatthepopulationisincreasing.Itstotalpopulation,around1,000,isverylimited,whichmakcsthechancesforthemtohavebabiesverysliminsuchalongriverastheYangtzeRiver.TopreservebiodiversityalongtheYangtzeRiver,Chinaimposeda10-yearfishingbanin332conservationareas,protectingnotonlythefinlessporpoisebutalsomorethan4,300kindsofaquaticlifelivingintheYangizeRiver.Thefishingban,whichiscrucialtoecologicalrestorationofthewholeriver,willsignificantlyexpandthefinlessporpoise'sfoodsupplyandremovethethreatfromfishingtools.However,thecffectwillbeknownonlyafterthreetofiveyears.28.WhatisParagraph2mainlyabout?A.Theeffectofthe10-yearfishingban.B.Thelivingconditionsoffinlessporpoises.C.Thenecessityoflimitinghumanactivities.

5.已知X、Y、Z、W、M是同一短周期的五种主族元素。单质W3具有强氧化性,可用于杀菌消毒,五种元素组成的盐是一种新型电池的电解质,结构如图所示。下列说法不正确的是A.原子半径:M>Y>z>w>xB.最高价氧化物对应水化物的酸性:Y>ZC.简单氢化物的稳定性:W<XD.阴离子中四种元素的原子均满足8电子稳定结构

(2)铝及铝合金经过阳极氧化,铝表面能生成几十微米厚的氧化铝膜。某小组模拟工业法对铝片表面进行氧化处理。分别以铅片、铝片为电极,以硫酸为电解液,按照如图装置连接,电解40min后取出铝片,用水冲洗,放在水蒸气中封闭处理20∼30min,即可得到更加致密的氧化膜。则电解时阳极电极反应式为。(3)MnO2的生产方法之一是以石墨为电极,电解酸化的MnSO溶液。则阴极的电极反应式为;阳极的电极反应式为.

12024全国高考分科综合卷 老高考(四)4化学