山西省2023-2024学年度八年级第二学期阶段性练习(三)3数学.考卷答案

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山西省2023-2024学年度八年级第二学期阶段性练习(三)3数学.考卷答案试卷答案

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chains.Theskillsthewomenlearnintheprogramarejustasimportantasthefundstheyearnfromthesaleoftheirhandicrafts."Whenwesellproducts,theprofitfromthatgoesbacktothewomen,"Hewittexplained."Wearenowemploying42womenbytheendofthisweek.Itmakesagreatdifferencetoeverysinglewoman,totheirfamilyandtoeveryonelivinginthiscamp.Iamveryproudofthat."AprogramparticipantnamedLauresharedherstoryonthevideo,"IcansayinthebeginningwhenIenteredGreece,Iwaslike,whatcanIdowithmylife?"Laurestruggledtostayoptimistic."ButwhenIheardaboutLoveWelcomesandstartedlooming,allofthesethoughtssuddenlymelted,"shesaid.LearningtheskillhelpedLauremaintainapositiveattitude.Astheinitiativehasgrowninpopularity,ithasattractedattentionfromwell-knownartists.1.Whatisthebesttitleforthetext?A.LoveWelcomes-HometoGreatWomenB.ThreeGreatDisplacedWomenWhoMakeaDifferenceC.HowtoSetUpaFamousOrganizationwithLittleMoneyD.TheInitiativeHelpsDisplacedWomenWeaveaBrighterFuture2.Whatbenefitsfemalesofthecampmost?A.Keychains.B.Thejoyoflabor.C.Theskillstheylearn.D.Recycledmaterial.3.WhatdoesHewittthinkofLoveWelcomes?A.Far-sighted.B.Significant.C.Concerned.D.Annoying.4.Whatmightbeinvolvedinthenextparagraph?A.SomeexamplesoffamousartistsB.Hardworkofloominglocally.C.ThebenefitsLaurehasgained.D.Thebestsellingofhandicrafts.【语篇导读】本文是一篇记叙文

文章讲述了LoveWelcomes帮助流离失所的妇女们学习编织技术的故事

l.D标题归纳题

通读全文可知,LoveWelcomes帮助流离失所的妇女们通过学习编织技术等,从而有了更加明朗的未来

D项适合作为文章标题

2.C细节理解题

根据第三段中的Theskillsthewomenlearnintheprogramarejustasimportantasthefundstheyearnfromthesaleoftheirhandicrafts.可知答案

3.B细节理解题

根据第四段中的Itmakesagreatdifferencetoeverysinglewoman,totheirfamilyandtoeveryonelivinginthiscamp..可知,Hewitt认为LoveWelcomes很有意义

4.A推理判断题

根据最后一段中的Astheinitiativehasgrowninpopularity,ithasattractedattentionfromwel-knownartists.可判断,接下来应该谈论与著名艺术家有关的例子

BIfSirihadanyfeelings,shewouldknowshewasbeingteased.When10-year-oldBelindaandherfriendsplay,theysometimesaskSiriquestionsinthehopeshewillsaysomethingrandomandmakethemlaugh."Doarap,"theyurgeSiri.“Tellusabedtimestory..”Belindaandherfriendshavegrownupinteractingwithartificialintelligence(AI)intheformofSiri,AlexaandGoogle.Theywerebornintoaworldofportabledevices.In2010whenthefirstoftheirgenerationwereborn,ApplereleasedthefirstiPad,InternetactivistJulianAssangepublishedthousandsofclassifieddocuments,MarkZuckerbergwasTime'sPersonoftheYear.MarkMcCrindle,Sydney-basedsocialresearcher,firstcoinedthetermGenerationAlphatodescribethosebornbetweenabout2010and2024inhisbookGenerationAlpha.Hesaidthisgenerationhasaccesstomoretechnology,informationandexternalinfluencesthananygenerationbeforethem,andatayoungerage.BelindahashadaniPadsinceyear3andisallowedtouseheriPadafterdoingviolinandpianopractice."It'salways'CanIusemyiPad,I'lldothatafterwardsandtheafterwardsneverhappens,'"Catherinesays."Changetheorderanditgetsdone."·48·

分析由已知条件求出双曲线的一个焦点为(0,2),可得关于m的方程,求出m,由此能求出双曲线的渐近线方程.

解答解:∵抛物线x2=8y的焦点为(0,2),
∴双曲线的一个焦点为(0,2),
∴$\frac{1}{m}$+1=4,
∴m=$\frac{1}{3}$,
∴双曲线的渐近线方程为y=±$\sqrt{3}$x.
故答案为:y=±$\sqrt{3}$x.

点评本题主要考查圆锥曲线的基本元素之间的关系问题,同时双曲线、椭圆的相应知识也进行了综合性考查.