江西省2023-2024学年度八年级第二学期期中考试试题(数学)

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江西省2023-2024学年度八年级第二学期期中考试试题(数学)试卷答案

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InMay2016,theAmericanbisonasnamedtheNatonalMamaoftheUnitedSe,officaooftheUnitedStates.15.Whatdoesparagraph1intendhow?教学A.Theappearanceofbuffalo.扎记C.Thehabitatofbisonandbuffalo16.Whatcanbeknownaboutbison?B.Thecurrentsituationofbison.A.Theyusuallyweigh2,000poundsD.Thedifferencesbetweenbisonandbuffalo.C.Bullsliveapartfromtheircalvesmoofthetime.7.TheunderindwordnpgreerB.Calves'humpsbegintogrowafterbirth.A.areaggressiveB.preferplantsD.Acowcangivebirthtomorethanacalfatatime..WhatcausedbisontogomoexintntheateineteC.weightoomuchA.Fights.D.eatalotB.Diseases.【答案与解析】C.Climatechange.本文主要介绍了野牛的相关信息

D.Settlers'killing.oplego5,D通读第1段可知,本段主要介绍了野牛和水牛两者的差异

6C根据第2段第4句可知,在一年的大部分时问里,公牛和母牛以及它们的小牛是分开的

.B根据第4段中的whichmeanstheyfeedonberriesandotherpans可知,grazers指的是食草功物,18D根据倒数第2段第2句可知,到了19世纪后期,野牛被移民猎杀,几近天绝,第三部分完形填空(共20小题;每小题1.5分,满分30分)阅读下面短文,从短文后各题所给的A、B,C和D四个选项中,选出可以填入空白处的最佳选项

It'ssadthatmanyofusfindourselvesjusttoobusytocontributetoourcommunities.Foranme.believeditcosttoomuch19,moneyandenergy.ButallthatchangedwhenI20mygood-deed-a-daypojetMydaughter,Emily,wasmyprimary21.Iwantedtoshowherwecoulddolittlethingstohelpothers,andbe22Thefirstweek,Iwasn'tsureifIcould23it.IsurfedtheInternetforideas.Oneday,I24ablindmaninthesubwaystation.Hesmiledashe25me.Anotherday,Ibroughtflowersfrommygardentoa26nursinghome,hopingIwasarousing27inkindnesswhereIlive.Afterjustafewdays,IfounditeasierthanIhad28IknewIwasmakinga29.Everyeveningatthedinnertable,I30thatday'sgooddeedtoEmily.Emilybegan31whatI'dstarted.Onawalkhomefromschool,shemarchedovertoaneighbour'spotofroses,whichhadfalleninthewind,andsetit32."Thatwasmygooddeedfortheday!"shesaidmerrily.Anotherday,shehelpedmecollectdonationsfromourneighboursforthe33bank.Aswedroveawayafter34thefood,Emilyannounced35thatshewantedtoworkthereoneday.nditsBythelastweek,IknewI'dchanged.Atfirst,Ihadn'tbeenentirely36thatIcoulddoagooddeedeveryday.Nowitwaspracticallysecond37.IfeltagreaterresponsibilitytotakeactionwhenIsawaneed,38lookingtheotherway.IfeltasthoughI'dawakened,somehow.19.A.spaceD.experienceB.timeC.wisdom20.A.improvedD.startedB.rememberedC.advertisedordorD.celebration21.A.satisfactionB.operationC.inspirationD.honest22.A.happyC.luckyB.cleverD.appreciate23.A.getB.manageC.putD.guided24.A.watchedC.taughtB.consultedD.rewarded25.A.consultedC.thankedB.greetedC.desertedD.popular26.A.localB.distantC.interestD.praise27.A.awarenessB.mercyC.preparedD.required28.A.plannedB.expectedC.differenceD.fortune29.A.discoveryB.mistakeC.announcedD.reminded30.A.describedB.recommended◇金太阳AB创新卷·英语(滚动卷2022.11.1117:53

江西省2023-2024学年度八年级第二学期期中考试试题(数学)

20.野生型酵母菌的某对同源染色体上部分基因的位置如图①所示,经透变处理后,获得了三种突变体,其相应的基因在染色体上的相对位置分别如图②③④所示,下列有关分析正确的是CA.使用光学显微镜可观察到突变体②③④染色体上改变的基因B.三种突变体的变异均改变了染色体上基因的数目和排列顺序C.果蝇的正常翅突变成缺刻翅最可能属于突变体③的变异类刑D.突变体④的变异类型增加了基因A中的碱基数量