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安徽省2023-2024学年度八年级阶段质量检测【PGZX D-AH &】试题(数学)试卷答案
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6.A词义猜测题
根据第二段中MuruganrevealedhehadnotbeenpaidwagesforsixmonthsandnowloansharkswerethreateninghisfamilybackinIndia可知，Murugan指出自己六个月未领到薪水，loansharks在威胁他的家人，由此可推断出是与金钱有关；再结合四个选项的意思可推知，loansharks指放高利贷者
7.C推理判断题
根据Dipa说的话以及她对Murugan提供帮助的行为可推知，她是一个正直且富有同情心的人
8.B主旨大意题
结合Dipa帮助处于弱势地位的Murugan的故事和最后一段话可推知，文章想表达人们应该富有同情心，去帮助需要帮助的人
二、完形填空（共20小题；每小题2分，满分40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
AlthoughGrace,alittlegirl,felthappyandloved,therewassomethingdisappointingher.Everyoneseemedtoknowexactlywhatthey9tobe.Theyheardfromadultsaboutmanydifferent10,butGracehadnoinspirationwhatsoever.OneeveningGraceseemed11.Hermomwasworriedandaskedwhy.Gracebegantocryasshepouredherheartouttohermotherabouther12andcareer.Gracehasalwaysdreamedofbecominga13,helpingothersandbeingaherotofamiliesinsituationsofdespair.Grace'smomsmiled,14her,andranaquicksearch.AsGracelookedupwithtears15herface,shesawthescreen.Therewasabeautiful,smilingfemalefirefighter16amedalfromtheMayorforherbraveryduringaterrible17accidentlastyear.Inthephotosheis18oneofthelittlegirlsfreedfromtheschoolbus.Gracecouldn'tbelieveit.ThenGrace'smother19thefirefighteronLinkedIn.Gracesatandwaited20forareply!Theycouldn'tcontaintheirexcitementwhenareplyflashedupafewdays21.ConstanceBaker,thefirefighter,becameher22.ThatsummerGracecelebratedherbirthdaywithallherfriends.Whenitwastimeto23thecake,Gracewastoldtoclosehereyes.24,theyheardloudsirens()comingcloserandlouder.Whensheopenedhereyes,Constanceinherfull25andhelmet()washoldinghercakeandtherestofthecrewwere26aroundthefiretruck.Wearingthehelmets,Grace'sfriendsandfamilywerelininguptorideinthefiretruckandtake27.ThiswasthebestbirthdayGracecouldeverhave.Fromthenon,Gracewasso28ofherfuturedreamsandtrulybelievedanythingispossible.9.A.wantedB.promisedC.pretendedD.agreed10.A.tasksB.dutiesC.careersD.comments11.A.uncomfortableB.unfocusedC.unaffectedD.unhappy12.A.freedomB.futureC.doubtD.behavior13.A.designerB.cookC.employerD.firefighter14.A.caughtB.huggedC.leftD.treated15.A.rollingdownB.washingawayC.stickingonD.settlingon16.A.returningB.presentingC.receivingD.awarding17.A.aircraftB.motorC.truckD.bus18.A.rewardingB.holdingC.phoningD.interviewing19.A.contactedB.praisedC.directedD.informed20.A.answeringB.preparingC.hopingD.hunting21.A.laterB.lateC.beforeD.ago22.A.instructionB.powerC.strengthD.inspiration23.A.applyforB.bringoutC.laydownD.turnin24.A.GraduallyB.SuddenlyC.ObviouslyD.Fortunately25.A.skirtB.dressC.uniformD.shirt26.A.exposedB.doubtedC.confusedD.crowded27.A.picturesB.exerciseC.risksD.action28.A.informedB.fondC.proudD.considerate【语篇导读】本文是一篇记叙文
文章叙述了小女孩Grace追求个人梦想的过程
9,A根据语境可知，此处表达似乎每个人都清楚自己想要成为什么样的人，wanted符合题意
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分析根据条件可以得出$\overrightarrow{EF}=\frac{1}{5}\overrightarrow{BC}，\overrightarrow{BE}=-\frac{4}{5}\overrightarrow{AB}$，将$\overrightarrow{BC}=\overrightarrow{AC}-\overrightarrow{AB}$带入，从而可以得到$\overrightarrow{BF}=-\frac{4}{5}\overrightarrow{AB}+\frac{1}{5}（\overrightarrow{AC}-\overrightarrow{AB}）$，这样进行向量的数乘运算便可用$\overrightarrow{a}，\overrightarrow{b}$表示出$\overrightarrow{BF}$．
解答解：如图，∵$\overrightarrow{AE}=\frac{1}{5}\overrightarrow{AB}$；
∴$\overrightarrow{EF}=\frac{1}{5}\overrightarrow{BC}$，$\overrightarrow{BE}=\frac{4}{5}\overrightarrow{BA}$；
∴$\overrightarrow{BF}=\overrightarrow{BE}+\overrightarrow{EF}=\frac{4}{5}\overrightarrow{BA}+\frac{1}{5}\overrightarrow{BC}$=$-\frac{4}{5}\overrightarrow{AB}+\frac{1}{5}（\overrightarrow{AC}-\overrightarrow{AB}）=-\overrightarrow{a}+\frac{1}{5}\overrightarrow{b}$．
点评考查相似三角形对应边的比例关系，向量加法、减法，及数乘的几何意义，以及向量的数乘运算．
