安徽省2023-2024学年度八年级阶段考试数学.考卷答案试卷答案,我们目前收集并整理关于安徽省2023-2024学年度八年级阶段考试数学.考卷答案得系列试题及其答案，更多试题答案请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)
安徽省2023-2024学年度八年级阶段考试数学.考卷答案试卷答案
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第三部分语言运用（共两节，满分30分》第一节（共15小题：每小题1分，满分15分）阅读下面短文，从每题所给的A,B、C,D四个选项中搓出可财填入空白处解Long-marchmakersOneofthegreatestmysteriesinbiology-howthemonarchbutterfyraveskilometersonitsyearlymigration-hasjustbeensoved.Monarchbutterfliesusethesunto41theirbodyclocksandmaketheiraccordingtoUSscientists.NootherbutterflyintheworldmigrateslikeorangeandblackmonarchsofoAEachautumn,thousandstravelupto3,300kmtospendwinterinthemountainsfMxTharesomanythattheyalmost42thesky.Andyoucanheartheirwings43Itusuallytakesthebutterfliestwo44toreachMexico.Afterfivemonthsofstayeheadbackupnorthinthespring.Butnotonebutterfly45thewholeroundtrip.Theyeggsalongthewayanddie.Three46ofbutterflieswillliveanddieduringthespringjoumeyalone.Thefourafinaloffspring(oftheyearisbominearlyautumnandwillreachtheButithardgetstorestbeforestartingthe48joumeysouthtoMexico.Paststudieshaveshowntheinsectsusethe49asacompasstoshowthemtheway.Bexpertswereunsurehowthebutterflieschangetheir50asthesunmovesinthesky.Thisnewstud小ynowsho%vstheinsectsuseabody“cireadia”clockaspartofthe分ncompass.Inlaboratorytests,monarchbutterflieswere51toflyintherightdirectiondnormaldaylighthours.Butthoseflyingin24-hourlightheaded52towardsthesunTheylongerhadany53oftime.StevenReport,wholedtheresearch,said,"Wehaveshownthe54forthecircadiaclockformonarchbutterflymigration.Whentheclockisinterrupted,monarchsare55totowardsMexico.”B1.A.makeB.setC.switchD.repairA42.A.blockoutB.escapefromC.runintoD.passbyA43.A.beatingB.expandingC.foldingD.spreadingB44.A.decadesB.monthsC.daysD.hoursC45.A.decidesB.designsC.finishesD.startsD46.A.quartersB.speciesC.groupsD.generations047.A.westB.southC.northD.eastA48.A.0gB.comfortableC.briefD.soo●月49，AmB.clockC.wingD.短eeB.A.distanceB.directionC.rateD.speed英语试题第7页（共12颜）
分析由已知中集合A={a|a=$\frac{kπ}{2}$+$\frac{π}{3}$，k∈Z}，B=[-π，π]，结合集合交集的定义，可得答案．
解答解：∵集合A={a|a=$\frac{kπ}{2}$+$\frac{π}{3}$，k∈Z}，B=[-π，π]，
∴A∩B={-$\frac{2π}{3}$，-$\frac{π}{6}$，$\frac{π}{3}$，$\frac{5π}{6}$}，
故答案为：{-$\frac{2π}{3}$，-$\frac{π}{6}$，$\frac{π}{3}$，$\frac{5π}{6}$}
点评本题考查的知识点是集合的交集，并集，补集运算，难度不大，属于基础题．
