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已知某商场在一周内某商品日销售量的茎叶图如图所示，那么这一周该商品日销售量的平均数为 ．
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高三下学期数学《》真题及答案
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某校高一年级研究性学习小组调查了学校超市甲乙两种签字笔连续5天的日销售量单位件得到如图所示的茎叶图
甲
乙
一样稳定
无法比较
如图是本地区一种产品30天的销售图象图①是产品日销售量y单位件与时间t单位天的函数关系图②是一件产品
第24天的日销售量为200件
第10天销售一件产品的利润是15元
第12天与第30天这两天的日销售利润相等
第30天的日销售利润是750元
某公司专销产品A.第一批产品A.上市40天内全部售完.该公司对第一批产品A.上市后市场销售情况进行了
某商品流通企业某种商品前10个月的实际销售量如16题表所示已知第10周期的销售量预测值F10=579
555.8
546.2
533.2
545
某商场以每件30元的价格购进一种商品试销中发现这种商品的日销售量m件与每件商品的销售价x元满足一次函
某鲜花店根据以往某品种鲜花的销售记录绘制出日销售量的频率分布直方图如图所示将日销售量落入各组区间的频
某批发市场对某种商品的周销售量单位:吨进行统计最近100周的统计结果如下表所示 周销售量234频数
某商场销售甲乙两种品牌的衬衣单价分别为200元和300元一周内共售出400件．为了扩大衬衣的销售量
某商场以每件50元的价格购进一种商品销售中发现这种商品每天的销售量m件与每件的销售价x元满足一次函数
某商场以每件50元的价格购进一种商品销售中发现这种商品每天的销售量m件与每件的销售价x元满足一次函数
商场销售AB两种品牌的衬衣单价分别为每件30元50元一周内共销售出300件为扩大衬衣的销售量商场决
某商场将进货单价为18元的商品按每件20元售出时每天可销售100件如果每件提高1元日销售量就要减少1
某商品进价为30元/件根据经验当销售为80元/件时日销售量为100件日常调查表明销售每下降10%可使
某商场节日酬宾全场商品8.5折优惠结果当日销售量增加了40%则该商场全日的销售额增 加了
11%
15%
17%
19%
某加油站工作人员根据以往该加油站的销售情况绘制了该加油站日销售量的频率分布直方图如图所示.将日销售量
3月份某品牌衬衣正式上市销售3月1日的销售量为10件3月2日的销售量为35件以后每天的销售量比前一天
某商品在近30天内每件的销售价格P.元与时间t天有如下函数关系该商品的日销售量Q.件与时间t天的函数
某商场经营一批进价是30元/件的商品在市场试销中发现此商品销售价x元与日销售量y件之间有如下关系x4
某商品在近30天内每件的销售价格P元与时间t天的函数关系是P=该商品的日销售量Q件与时间t天的函数
某批发市场对某种商品的周销售量单位:吨进行统计最近100周的统计结果如下表所示 周销售量234频数
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20分假设你是育才中学学生会__李华.上周你校邀请美国某大学的卫斯理教授来校做了一场关于各国身势语的专题讲座.请你代表你校全体学生用英语给他写一封信内容包括 1表示感谢.2你的收获. 注意1.词数100左右.信的开头和结尾已经给出不计入总词数 2.可适当增加细节以使行文连贯. DearMr.Wesley I'mLiHuachairmanoftheStudentUnionofYucaiMiddleSchool._____ Thankyouagainandbestwishestoyou. Yours LiHua
1分CthattheFatherChristmaswouldcometodelivergiftsduringthenightthechildrenwillinglywenttobedearlierthanbefore.
10分 ParentsModelHealthyEating Itshouldcomeasnosurprisethatthemorestressedparentsareatworkthegreatertheburdenontheirfamilyis.1Afterallthemoretimeparentsspendworkingthelesstimeandenergytheyhavetoplanandpreparehealthfulmeals. Foryearsmoststudieshavefocusedontheroleofworkingmotherswhilefatherswereignored.Theydidn'tlookatthefamilyasawhole.2Itaddsanewwrinkletotherelationshipbetweenworkstressandfamilynutrition. Moms'workrelatedstressisstillacentralfactorinhowwellfamilieseatbecausetheytypicallydomostofthefoodshoppingandcooking.3Thestudyfoundthatwhenmomordadexperiencehighlevelsofworkrelatedstresstheirfamiliesareeatingone﹣and﹣a﹣halffewerfamilymealsperweekandtheparentsthemselvesreporteatingfewerfruitsandvegetablesmorefastfoodandarelesslikelytoeatbreakfastregularly. It'sworthnotingthatthestudylookedmainlyatlowincomefamilieswhobelongedtoethnicorminoritygroups.4Buttheimplicationsarewideranging. 5Teachingkidsespeciallyteenagerstohelpwithgroceryshoppingandtocookactualmealsinsteadofjustputtingafrozenpizzainthemicrowavecouldbeanimportantpieceofthepuzzleinhelpingfamiliesimprovestheireatinghabits. A.Butdad'sworkrelatedstresshasalargeimpacttoo. B.Astofamilynutritiontheentirefamilyplaysaroleevenkids. C.Yetthekids'stressmayaffectthefamilies'nutritiontoo. D.Sothefindingsdon'tnecessarilyapplydirectlytoothertypesoffamilies. E.It'salsoprobablynotasurprisethatthiscannegativelyaffectafamily'snutrition. F.Howeverarecentstudydoesandlookattheroleoffathersinparticular. G.Itisparentswhogivetheirkidsagoodmodeltodevelopagoodeatinghabit.
15分Englishisalanguage1bringtoBritaininthe5thcenturybyAnglo﹣SaxonsettlersfromvariouspartsofNorthwestGermany.ItisconvenienttodivideEnglishintothreeperiodsroughly─OldEnglishMiddleEnglishandModernEnglish. The2earlyformofEnglishiscalledOldEnglishorAnglo﹣Saxon.OldEnglishdevelopedfromasetofNorthSeaGermanicdialects3originspokenalongthecoastsofFrisiaLowerSaxonyJutlandandSouthernSwedenbyGermanictribesknown4theAnglesSaxonsandJutes.LaterOldEnglishwasstronglyinfluencedbytheNorthGermaniclanguageNorsespokenbytheVikingswhosettledmainlyinthenorthwest.ThemostfamousworkfromtheOldEnglishperiodistheepicpoemBeowulfwrittenby5unknownpoet.OldEnglishisverydifferentfromModernEnglishanddifficultforthe21st﹣centuryEnglishspeakerstounderstand. Forthe300yearsfollowingtheNormanConquestin1066theNormankingsandthenobilityspokeonlya6varyofFrenchcalledAnglo﹣Norman.Englishcontinuedtobethelanguageofthecommonpeople.TheNormaninfluence7strongthecontinualevolutionofthelanguageoverthefollowingcenturiesresultingin8isnowreferredtoasMiddleEnglish.Andoneofthebest﹣knownworksfromtheMiddleEnglishperiodisGeoffreyChaucer'sTheCanterburyTales. Fromthelate15thcenturythelanguagechangedintoEarlyModernEnglishoftendatedfromtheGreatVowelShift.EnglishiscontinuouslyabsorbingforeignwordsespeciallyLatinandGreekcausingEnglishtohavethelargestvocabularyofanylanguageintheworld.Bythelate18thcenturytheBritishEmpirehadspedthespreadofEnglishthroughitscoloniesandgeopoliticaldominance.CommercescienceandtechnologydiplomacyartandformaleducationallcontributedtoEnglish9becomethefirsttrulygloballanguage.Astherearemanywordsfromdifferentlanguagestheriskofmispronunciationishigh.In1755SamuelJohnsonpublishedhisADictionaryoftheEnglishLanguage10introducedastandardsetofspellingconventionsandusagenorms.
6分Inahotsummerthere'snobetterplacethanaUKbeach﹣theseshoresofferwalksandwildlifepicnicsandrockpools. RunswickBayNorthYorkshir Itisapopulardestinationforrockpoolerswalkersandhunters.Manyofthehomesarenowholidayaccommodationslinkedbypathsandwalkwaysratherthanstreets.TheRoyalHotelattheheartofthevillageoffershomemadecakesandcoffeealongsideasimplebuttastybarmenuandlocalBlackSheepbitterondraft. StayinCastleHousesleepssixthreenightsfrom£500atthetopofthevillagehassweepingviewsofthebayfromacomfortablewindowseat. SouthShoreBrownseaIslandDorset ReachedbyferryfromthemoneyedshoresofSandbanksBrownseaIslandisapocketofsafewildernessinPooleharbour.FamousforitsredsquirrelpopulationandasthesiteofBaden﹣Powell'sfirstScoutcampitsmixtureofwoodlandwildlandandpondssuitsadayofexplorationandadventure.Pushyourselfintothesandybanksandenjoyviewsacrosstheharbourinthecompanyofvariousseabirds. StayinNationalTrust﹣ownedCustomHouseontheseaportsleepsfourthreenightsfrom£622offersarealBrownseaexperience. KingsgateBayBroadstairsKent ThelackofaconvenientcarparkmeansthatKingsgateBaybetweenMargateandBroadstairsisquieterthanotherbeachesontheThanetcoast.AshortwalkfromthecarparkatneighboringJossBaypopularwithsurfershoweverwilltakeyoutothisshelteredsandybaywithitsseacaves.Itisalsoasafeplacetoswimandcanoe. StayintheBotanyBayHotelfamilyroomsfrom£80B&Bhassomedog﹣friendlyrooms. 1Whichofthefollowingsuitsyoumostifyouareananimallover A.JossBay. B.KingsgateBay. C.SouthShore. D.RunswickBay. 2Whatcanwelearnfromthepassage A.RunswickBaycanbeaccessiblebyferry. B.YourpetdogsareadmittedintotheBotanyBayHotel. C.TherearelotsofconvenientcarparksforvisitorsatKingsgateBay. D.YoucanenjoyhomemadecakesduringyourstayintheBotanyBayHotel. 3Whatkindofpeopleisthetextmainlywrittenfor A.Scientists. B.Students. C.Tourists. D.Artists.
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10分EleanorRooseveltoneofthemostsuccessfulinfluentialandbelovedwomeninAmericanhistoryoncesaidthatshehadoneregretshewishedshehadbeenprettier.Whohasn'tfeltthesameway1Toovercomethemwespendbillionsofdollarseveryyearoncosmeticsdietproductsfashionandsoon. WhydowecaresomuchabouthowwelookBecauseitmatters.Becausebeautyispowerful.Becauseevenwhenwelearntovaluepeoplemostlyforbeingkindandwiseandfunnywearestillmovedbybeauty.Nomatterhowmuchweargueagainstitbeautyhasgreatinfluenceonus.2 AristotlesaidBeautyisagreaterrecommendationthananyletterofintroduction.3Wesimplytreatbeautifulpeoplebetterthanwedoothers.Attachaphotographofabeautifulauthortoanessayandpeoplewillthinkthatitismorecreativeandmoreintelligentlywrittenthanexactlythesameessayaccompaniedbythephotoofahomelyauthor. Oursensitivitytophysicalbeautyisnotsomethingwecancontrolatwill.4ExperimentsconductedbypsychologistJudithJ.Langloisshowedthatevensmallbabiesprefertolookatattractivefaces.BeforetheyhavemetasinglesupermodelbeforetheyhavewatchedasingleTVshowbeforetheyhaveopenedupasinglefashionmagazinetheyaredrawntothesamefaceswhichadultshavejudgedtobeattractive. 5JustasNancyEtcoffsaysWehavetounderstandbeautyorwewillalwaysbeenslavedbyit.Ifyouaimtobewiseandkindandfunnyitdoesn'tmeanthatyoucan'talsotryyourbesttolookbeautiful.There'snoreasontofeelguiltyaboutbeingmovedbybeauty'spower.Itmovesusall. A.Wearebornwithit. B.It'snotfairbutit'strue. C.Thereissimplynoescape. D.Itactuallydoesnotmakeanysense. E.Weareallproudofourachievements. F.Wearealltooawareofourphysicalimperfections. G.Howevertherearemoreimportantthingsinlifethanbeauty.
25分汉族成年礼延续数千年历史悠久.至满清入关后满清统治者一纸令下终结了绵延了几千年的成人礼然而现在正在逐渐恢复且越来越流行.假定你是高三学生李华学校将于下周五晚上七点在阶梯教室举办成人礼活动.请你代表学生会写一封邮件给外教Tom邀请其参加本届成人礼活动并简要介绍活动时间地点及流程等. 注意 1.词数100左右 2.可以适当增加细节以使行文连贯 3.开头与结尾已给出不计入总词数. 参考词汇成人礼thecoming﹣of﹣ageceremony DearTom I'mLiHuaoneofyourstudents.Onbehalfofthestudents'union Yours LiHua
10分Three﹣quartersoftheworld'scoffeefarmsdestroyforesthabitattogrowcoffeeinthesunandusuallyuseharmfulpesticides杀虫剂and1chemicalthatpoisontheenvironment.Whenforestsdisappearmigratory迁徙的songbirdsdisappeartoo.Inordertodealwithincreasingpopulationandhabitat2loseSmithsonianscientistscreatedtheBirdFriendlycertification证书. BirdFriendlycoffeesareshade﹣grownmeaningthecoffeeisplantedundertreesratherthanonthelandthat3clearofallotherplants.Coffeeexpertssayshade﹣growncoffeestaste4goodbecausethebeansripenslowerthancoffeegrowninthefullsun5resultinarichermorecomplexflavor味道.BirdFriendlycertifiedcoffeesgrowunderbio﹣diverseshadethatprovideshabitatformigratorysongbirdsandotherwildlifestorescarbon6fightsclimatechange.BirdFriendlycoffeesarealsocertifiedorganicmeaningtheyaregrownwithoutpesticides7isbetterforpeopleandfortheplanet. BirdFriendlyproducerscanalsoearnmorefortheircrops.Thewoodandfruittreesonshadecoffeefarmsprovideadditionalincome8farmers.EverycupofBirdFriendlycoffeeboughtrewardsthesefarmerswithalittlemoremoneyfortakinggoodcareoftheenvironmentandencouragesthemtocontinue9protectBirdFriendlyhabitat. YoucanbuyBirdFriendlycertifiedcoffeesthroughouttheworldandprotectwildlifeandhabitatwitheverycup.Findastoreorcafenearyouorbetteryethaveit10delivertoyourdoorwhenyouorderonline.
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8分AccordingtoarecentstudyanewgeneticallymodifiedricecanpreventinfectionsofHIVthevirusresponsibleforthediseaseAIDS. Thestudyreportsthenewly﹣developedriceproducesproteinsthatattachdirectlytotheHIVvirus.Thisprocesspreventsthevirusfrommixingwithhumancells.Thescientistssayitcanremovetheeffectofthevirusandblockitsspreading. TheJointUnitedNationsProgramonHIV/AIDSreportsthatworldwidenearly37millionpeoplewerelivingwithHIVin2017.Theorganizationsaysthelargestnumberofthoseareindevelopingcountries.Nearlytwo﹣thirdsofHIVcasesareinAfrica.NowthereisnocureforHIV/AIDSthoughtherehavebeendevelopmentsinoraldrugtreatmentstoslowtheprogressionofthedisease. Thenewstudypredictstherice﹣basedmethodwillleadtolong﹣termuseoftheanti﹣HIVtreatmentacrossthedevelopingworld.Researcherssaidthegroundbreakingdiscoveryisrealisticallytheonlywaythatanti﹣HIVcombinationtreatmentscanbeproducedatacostlowenoughforthedevelopingworld. Theysaytheeasiestandmostcost﹣effectivewaytousethericewillbetomakeitintoacreamtobeputontheskin.TheHIV﹣fightingproteinscanthenenterthebodythroughtheskin.Peopleallovertheworldcouldgrowthericeandmakethecreamthemselves.Thiswouldpreventthecostandtravelrequiredformanypatientstoreceivetreatmentsandmedicine. Theprocessofchangingthegeneticstructureoffoodcropshasbeendebatedforsometime.Criticsofgeneticallyengineeredcropsbelievetheycanharmpeople.Thescientificteamsaysfurthertestingisneededtoensurethatthegeneticengineeringprocessdoesnotproduceanyadditionalchemicalsthatcouldbedangeroustopeople. 1Whatdoestheauthorintendtodoinparagraph3 A.StresstheurgencyofHIVtreatments. B.ProvidesomedataaboutHIV. C.RemindreadersofHIVprevention. D.IntroduceHIVtothepublic. 2Inwhichwaywillthericebeusedatthelowestcost A.Bytransformingitintoproteins. B.Byaddingittoanoraldrug. C.ByattachingittotheHIVvirus. D.Byprocessingitintoacream. 3Whatcanweinferaboutthegeneticengineeringprocess A.ItcanpreventinfectionsofHIV. B.Itcanproducedangerouschemicals. C.Itstillrequiresperfecting. D.Itappliestothedevelopedworld. 4Fromwhichisthetextprobablytaken A.Abiologytextbook. B.Ahealthmagazine. C.Asocialwebpage. D.Afirstaidbrochure.
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25分假定你是阳光国际学校的学生李华你校将迎来20周年校庆.校史馆拟从本校学生中招募若干名英语解说员.请你根据要求用英语写一封信申请该职位内容主要包括 1.写信目的 2.申请理由 3.期待回复. 注意1.词数100左右开头和结尾已给出不计入总词数. 2.可适当增加细节以使行文连贯. DearSirorMadam Yourssincerely LiHua
如图是动物细胞减数分裂某一时期的示意图．关于该细胞的叙述正确的是
10分 Understandingspecialeducation WhatwillappearinyourmindwhenyouthinkaboutspecialeducationYoumightpicturechildrenwithdisabilitiesspendingthedayinadifferentclassroomseparatedfrommostofthekidsoftheirage.1Butasthefieldofspecialeducationhasmovedforwarditmuchhaschanged. Specialeducationtodayisstillfocusedonhelpingchildrenwithdisabilitieslearn.2Infactfederallawrequiresthatstudentswhoreceivespecialeducationservicesbetaughtalongsidetheirnon﹣disabledpeersasmuchaspossible.Forexamplesomestudentswithreadingdisordermayspendmostofthedayinageneraleducationclassroom.Theymayspendjustanhourortwoinaresourceroomworkingwithaspecialistonreadingandotherskills. Thechangesarealsoreflectedinotheraspects.3It'stailored量体裁衣tomeeteachstudent'sneeds.Specialeducationreferstoarangeofservicesthatcanbeprovidedindifferentwaysandindifferentsettings.Ifyourchildqualifiesforspecialeducationhe'llreceiveindividualizedteachingresources.Thespecialistswhoworkwithyourchildwillfocusonhisstrengthsaswellashischallenges. 4Makingthecurriculumaccessibletostudentswithdisabilitiesisalotlikemakingbuildingsaccessibletopeopleinwheelchairs.Schooldistrictshaveaprocessinplacetodeterminewhichstudentsarequalifiedforspecialeducation.Thisprocessinvolvesasystematicevaluationthatlooksatthewayyourchildthinks.5Ifthedistrictagreestoevaluateyourchildthetestingwillbeconductedatnocosttoyou. A.Accessisanimportanttermineducation. B.Youoryourchild'sschoolcanrequestanevaluation. C.Thismayhavebeenthenormalsituationinthepast. D.Thereisnoonesizefitsallapproachtospecialeducation. E.Toclearthelearningbarriersisthepurposeofspecialeducation. F.Butthisnolongermeansplacingkidsinaspecialclassroomalldaylong. G.Thequalificationforspecialeducationisassessedbylocalschooldistricts.
“不是花中偏爱菊此花开尽更无花”观赏菊有很多漂亮的品种这些品种的产生主要是来自
蛋白质合成过程中氨基酸分子脱水缩合形成的化学键是
1分None'sheaddoesnotalwaysmeansshowingagreementunderstandingorapproval.
人类ABO血型和基因型的如表所示．某对夫妻血型分别是B型和O型后代的血型可能是
6分 FourBestPlacestoTravelfortheSummerof2019 Ifyou'restilldecidingwheretotakeyoursummervacation2019bringsmajoranniversariesnewflightroutesbuzzymuseumopeningsandmore.Innoparticularordercheckoutourpicksforwheretotravelthissummer SalardeUyuniBolivia TheSalardeUyuniorUyuniSaltFlatisavastexpanseneartheBolivianAndesthatresemblesice.Thesurreallandscapeisactuallyleftoversaltfromancientlakes.Alargeloungedomeoffersapublicspacewithtablesfloorcushionsandhanginglanterns.FoodisprovidedbyGustuinLaPazconsideredoneofLatinAmerica'stoprestaurants.BeyondsimplyenjoyingthefoodandsceneryguestscanhiketothecraterofTunupaVolcanomountainbikeacrosstheSalarorvisitthevillageofJirira.Comenightfallon﹣sitetelescopestakefulladvantageofthestar﹣floodedsky. LasVegas There'stheParkTheaterwhereupto5200peoplecanenjoyA﹣listartistresidenciesLadyGagaiscurrentlyinresidenceuntilNovemberwithJanetJacksonandCherstartingthissummer.ForgoodmeasureBrunoMarswillalsobeperformingsomedatesinSeptember.DanielHummandWillGuidaraperhapsbestknownforNYC'sElevenMadisonParkrestaurantarebehindtheNoMadRestaurantandNoMadBar.AndfoodieswillnodoubtwanttoexperienceRoyChoi'sBestFriendthefirstbrick﹣and﹣mortarrestaurantfollowinghishugelysuccessfulKoreanBBQtruck. NovaScotia NovaScotiaoftengetsoverlookedforpopularprovinceslikeBritishColumbiaandQuebecbutitsquietcharmsareworthexploring.CapeBretonIslandtakesabitofworktoreachbutit'sherethatyou'llfindchallenginghikingtrailsascenicdrivingrouteminusthetrafficandreal﹣dealCelticculture.TheHalifaxJazzFestivalheldintheprovince'scapitalisconsideredNovaScotia'slargestmusicfestivalandgoesdownfromJuly9﹣14onthewaterfront. GrandCanyon It'stheGrandCanyon's100thanniversaryasanationalparkandtherearemultiplewaystocelebratethisnotableoccasion.FromJune22﹣29stargazerscanjoinamateurastronomersforfreeatthepark'sNorthandSouthRimsfortheStarParty.TelescopeswillbeonhandtofindplanetsJupiterandSaturnamongthemstarclustersandnebulae.Therewillalsobeslideshowprogramswithadifferentfocuseachnightfromprotectingdarkskiestolearninghowplanetsform.Constellationtalksandnightskyphotographyworkshopsareamongthefreeofferingsjustallowyourselfenoughtimesinceyouwon'tbetheonlyonewiththisidea. 1Whichplacewillyouchooseifyouwanttohaveagreatbarbeque A.SalardeUyuni B.LasVegas C.NovaScotia D.GrandCanyon 2WhichcountryisNovaScotiaprobablyin A.Canada B.America C.Britain D.SouthAfrica 3IfyouareanAstronomyfanswhichtwoplaceswillbethebestchoice A.SalardeUyuniandLasVegas B.SalardeUyuniandGrandCanyon C.LasVegasandNovaScotia D.LasVegasandGrandCanyon
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