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河北省2024年九年级模拟检测（2024.5）数学.考卷答案试卷答案
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5.WhyisSirimentionedinparagraph1?12.A.unconcern接上页B.passivityC.doubtD.uncertaintyA.ToproveSiriisveryintelligent.13.A.givingawayB.lookingatC.worryingaboutD.puttingup选择题B.Topointoutkidsoftenfeelbored.14.A.throwingB.catchingC.takingD.pulling答题栏C.ToindicateSirineedstobeimproved15.A.meaningfulB.lightC.ordinaryD.toughD.ToshowAIispartofBelinda'slife.16.A.suddenlyB.occasionallyC.activelyD.practically166.WhatdistinguishestheGenerationAlphafromothergenerations?17.A.transformationB.connectionC.explanationD.determination17A.Theyaremoreindependent.18.A.operateB.strengthenC.adjustD.support18B.Theyaremorewillingtohelpothers.19.A.considerB.realizeC.shareD.improveC.Theyareexposedtomoretechnology.20.A.significantB.sensitiveC.commonD.natural19D.Theyaremoredevotedtosocialactivities21.A.persuadedB.forcedC.motivatedD.intended207.WhichwordcanbestdescribeBelinda?22.A.seekingB.consumingC.experiencingD.approaching21A.Adaptable.B.Caring.C.Shy.D.Cautious.23.A.annoyanceB.disappointmentC.confusionD.amazement228.Whatismainlytalkedaboutinthelastparagraph?24.A.healthyB.independentC.competentD.mature23A.McCrindle'sbook.B.McCrindle'sconcern.25.A.resultB.benefitC.processD.freedom24C.Theharmofscreens.D.Waystodealwithdevices.26.A.energizedB.excitedC.satisfiedD.stressed二、完形填空（共20小题；每小题2分，满分40分）27.A.BychanceB.InadditionC.BycontrastD.Inshort25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28.A.careerB.dreamC.possessionD.happiness26空白处的最佳选项
三、语法填空（共10小题；每小题2分，满分20分）27Ispentmanyyearsdoingthingsseemingly"important"tome.Iwastoldthat阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式
28collegeisgreatandthatallthat9inlifeistogetagoodjob,apartner...ArobotdesignedforfunbyIndonesianvillagersandscientistshasfoundaThese10,justlikeformanyofyou,wereso11fixedinmymindfromnewuseduringtheCOVID-19outbreak.Itbringsfood,andhopefullyasmile,tochildhood.people29havebeeninfected().UnlikethecomplexrobotsusedinJapanDuringoneofmysummerholidays,Ifinallyrealizedmy12.Ialreadyandothercountries,thisIndonesianrobotismadeofhouseholdobjects,likepotsstudiedforacoupleofyears,andIspentalmostnotime13whatIwouldandpansandanoldtelevision.It'snowcalledthe"Deltarobot".30(use)onlyactuallywant.Istudiedthroughoutweekdaysanddidthings14menowhereatsecond-handmaterialsfromtheneighborhood,therobotisveryeasy31weekends.(operate).Thelastyearofmystudieswas15SomethingwasboundtochangeinTherobot'sheadismadefromaricecooker.It'soperatedbyremotecontrol-difficulty.Ihadalreadybegun16goingtothegymtomakethe17thatIadevice()usedtocontrol32(equip)fromadistancewiththehelpofwasafter.Doingphysicalexercise,Icannotonly18mybody,getridofelectronicsignals.TherobotisoneofseveralinthevillageofTembokGede,stress,butmostimportantly,Ican19mywillpower.Byhavingdecidedtogowhichhasbecomeknownfor33(it)creativeuseoftechnology.tothegym3timesaweek,Iwasalreadymaking20changesinlife.Aftermovingdownthestreetto34homeofaself--isolating(自我隔离)Takingcareofmybodyalso21metolookafterwhatIwas22Inovillager,therobot'sspeakersendsoutthemessage"Peacebewithyou,"35longeratefattyandsugaryfood.Tomy23,Iwasn'tleadingabadlifestyle(follow)by"Adeliveryishere.Getwellsoon."ThevillagelieswithinSurabaya,anymore.SoIwasbecoming24ThebestpartaboutitwasthatIdidn'tevencapitalofEastJavaandIndonesia'ssecond-biggestcity.A36(power)secondhavetotryhard,soIenjoyedthe25！Itmightbeaparadox(矛盾)tosome,waveofinfectionshasappearedthereoverthepastmonth.butIfeelmore26_bydoingintense(剧烈的)exercise,27,exercisekeepsSofar,Indonesia37(become)thecentreofAsia'sCOVID-19outbreak.mecheerfulandIrealizeone's28beginswithphysicalhealth.Thecountryhasrecordedover108,00038(death)fromthevirus.29.30.31.32.33.9.A.succeedsB.appearsC.countsD.functions343536.37.3810.A.thoughtsB.commentsC.introductionsD.decisions11.A.quicklyB.quietlyC.easilyD.heavily英语·周测卷（二十四）第3页（共4页）英语·周测卷（二十四）第4页（共4页）
分析由已知向量的坐标求出$\overrightarrowa-2\overrightarrowb$的坐标，再由$\overrightarrowa-2\overrightarrowb$与$\overrightarrowc$垂直列式求得k值．
解答解：∵$\overrightarrowa=（\sqrt{3}，1）$，$\overrightarrowb=（{0，-1}）$，
∴$\overrightarrowa-2\overrightarrowb$=（$\sqrt{3}，3$），
又$\overrightarrowc=（\sqrt{3}，k）$，且$\overrightarrowa-2\overrightarrowb$与$\overrightarrowc$垂直，
∴$\sqrt{3}×\sqrt{3}+3k=0$，解得：k=-1．
故答案为：-1．
点评本题考查平面向量数量积运算，考查了向量共线和垂直的坐标运算，是基础题．
