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在探究物体的重力势能大小与哪些因素有关的实验中三个相同的木桩被从空中静止释放的铁块撞击，陷入沙坑中的情况如图所示．在此实验中，我们是通过观察 来比较各铁块重力势能的大小； 若A、B两铁块质量相...
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在探究物体的重力势能大小与哪些因素有关的实验中三个相同的木桩被从空中静止释放的铁块撞击陷入沙坑中的情
在探究物体的重力势能与哪些因素有关的实验中二个完全相同的木桩A.B.被从正上方静止释放的铁块撞击后陷
在探究重力势能与哪些因素有关的实验中小华猜想A.物体重力势能的大小可能与物体被举高的高度有关B.物体
在探究重力势能的大小与哪些因素有关时:1你是如何比较重力势能大小的2要研究重力势能的大小与质量是否有
本题有两小题1如图所示用斜面木板棉布玻璃板小车做探究阻力对物体运动的影响的实验①为了使小车到达水平面
如图19所示用装有细沙的容器桌面粘有橡皮泥的三条腿小桌和质量不同的木块做探究重力势能大小与哪些因素有
在探究物体的重力势能大小与哪些因素有关的实验中三个相同的木桩被从空中静止释放的铁块撞击陷入沙坑中的情
在探究重力势能与哪些因素有关的实验中小华猜想A.物体重力势能的大小可能与物体被举高的高度有关B.物体
小明想利用研究动能的大小与哪些因素有关的实验装置和器材斜面木块不同质量的小钢球来探究影响重力势能大小
某兴趣小组提出利用研究动能的大小与哪些因素有关的实验装置如图所示与所需器材斜面木块不同质量的小钢球来
为探究重力势能的大小与什么因素有关小明利用带有四个铁钉的小方桌沙箱及质量不同的重物设计并进行了如图所
如图所示用装有细沙的容器三脚小桌和质量不同的木块做探究重力势能大小与哪些因素有关实验．①为该实验是通
如图19所示用装有细沙的容器桌面粘有橡皮泥的三条腿小桌和质量不同的木块做探究重力势能大小与哪些因素有
如图是小轩同学重力势能的大小与哪些因素有关的实验示意图在实验中小轩将体积相同质量不同的两个金属球从同
为探究重力势能的大小与什么因素有关小明利用带有四个铁钉的小方桌沙箱及质量不同的重物设计并进行了如图所
王岩同学在体育课上投掷铅球时联想到物理课上学到的重力势能的知识他想利用铅球和沙坑来探究重力势能的大小
在研究物体的重力势能与哪些因素有关的实验中三个相同的木桩被从空中静止释放的铁块撞击陷入沙坑中的情况如
为了探究重力势能与哪些因素有关现有体积大小不同的实心铁球各一个体积大小相同的实心铁球和实心玻璃球各一
为探究重力势能的大小与什么因素有关小明利用带有四个铁钉的小方桌沙箱及质量不同的重物设计并进行了如图所
某兴趣小组提出利用研究动能的大小与哪些因素有关的实验装置如图所示与所需器材斜面木块不同质量的小钢球来
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20分在李华18岁生日到来之际妈妈准备送他一份礼物并给了他三个选择kindle电子书生日旅行希望小学志愿者服务让他做出自己的决定.假如你是李华你会选择哪份礼物阐述你选择这份礼物的理由.
下列选项中关于水的说法正确的是
3分AvisittothevillageofKitaisaUganda TherearenotmanyvisitorstoKitaisaandnotmuchthatwouldbringthemthereunlesstheyknowsomeonelivingthere.Mostofthevillagersliveadistancefromthemainroadandwheretheylivearepathsthataredifficulttotravelespeciallyduringtherainyseasons. Thereareafewshopssellingoilsugarteaflourcandles.Thereisnopetrolstationbutonewillfindaschoolandasmallgovernmenthospital.Buttherearenodoctorsjustafewnursesandmedicallytrainedstaff. Itisstillearlyandmostpeopleareoutsidecookingtheirmealsoverfirewood.Childreninuniformandwithoutshoesaregoingtoschoolmakingtheirwaythroughmuddypathsfromthenight'srain. Youcanseesomeadultspickingbeansorcultivatingthegroundaroundcornplants.Somechildrenarecarryingwaterfromthenearbyriver.Peoplearesittingoutsidehavingbreakfast.Childrenwillhaveporridgethefamilywilleatleftoverposhoorplantainbananascalledmatoke.Meatisnotofteneatenproteincomesmostlyfrombeans. Herelifeistoughthereissimplyalackofeverything.SomechickensarerunningaroundandIamtoldthattheyarebasicallyforeggsthoughonewascaughtandgiventomeforlater.Lifehereisverysimple.Thereisnolibraryherenonewspapers.Therewasalittlerestaurantwithsomeoutsidechairsabeautyshopandabouteightplaceswherefoodandothersuppliesweresold. Peopleinvillagesdon'tlivelongforthemostpartsincethereisnoinfrastructurehere.Therearenoambulancesandifyoudogetsickthereisnomoneytopayfortreatment.Thenearesthospitalis15kilometresawayinBusunjubuteventhatlargertownlacksfacilitiesthoughamedicalclinicistherewithadoctorunlikethesmallfacilityinKitaisawhichhasfewthings. Otherobviousproblemsarewithwaterandsanitation.Watertakenfromcreeksshouldbeboiledandtreated.Itisnotandbecauseithastobecarriedfromadistanceitisusedsparingly.Childrenbecomeillwithdiseasesthatcouldbepreventedthroughtheuseofsoapandwater. Therearenojobsinthevillageexceptcultivatingyourgarden.Youcantrysellingfoodalongtheroadbutthereisnowaytomakemoney.Youlearntoliveonlittleandtomakeeveryshillingcount.Somesupportcomesfromrelativesandifyouvisitsomeoneinthevillageyoubringthosethingsthattheydonothaveandwhenyouleaveyouleavethemsomecash. VillagepeopleinUgandaarefriendlyandhospitable.Theyarekindandshowtheirgracefulwaystooutsiders.Kidshoveradultsgreetyouliketheyhaveknownyouforever. 69.WhatisthemostlikelyreasonforpeopletoKitaisa? A.Tovisitsomerelativesorfriends. B.Toenjoythebeautifulscenery. C.ToknowmoreaboutUganda. D.Tohelppeopleawayfromdiseases. 70.WhichofthefollowingwordscanNOTbeusedtodescribethelifeinKitaisa? A.Hard.B.Peaceful.C.Boring.D.Ideal. 71.Thewordinfrastructureparagraph6isclosestinmeaningto. A.enoughnutrition B.systemictransportation C.basicservices D.high﹣qualityeducation 72.Thepassagemainlytalksabouttheauthor's. A.expectationoftheunder﹣developingvillage B.experienceandfeelingsofthevisittothevillage C.suggestionsonthedevelopmentofthevillage D.descriptionofthebeautifulsceneryofthevillage.
2分同事们从来没有想到他会想方设法完成大家认为不可能完成的任务.occur.
洁厕剂含有盐酸与84消毒液混合发生如下反应NaClO+2HCl＝X+H2O+Cl2↑对人体造成伤害．下列说法不正确的是
30分ThefactthatpeoplearenolongertiedtospecificplacesforfunctionssuchasstudyingorlearningsaysWilliamMitchellaprofessorofarchitectureandcomputerscienceatMITmeansthatthereisahugedropindemandfortraditional51enclosedspacessuchasofficesorclassroomsandsimultaneouslyahugeriseindemandforsemi﹣publicspacesthatcanbeinformallyappropriatedtoad﹣hocworkspaces.Thisshifthethinksamountstothebiggestchangein52inthiscentury.Inthe20thcenturyarchitecturewasabout53structures﹣officesforworkingcafeteriasforeatingandsoforth.Thiswasnecessarybecauseworkersneededtobenearthingssuchaslandlinephonesfaxmachinesandfilingcabinets. ThenewarchitecturesaysMrMitchellwillmakespacesintentionally54.Architectsarethinkingaboutlightairtreesandgardensallintheserviceofhumanconnections.Buildingswillhavemuchmorevariedshapesthanbefore55peopleworkingonlaptopsfinditcomfortingtohavetheirbackstoawallsohybrid混合的spacesmaybecomecurvierwithmorenooks角落inorderto56thesurfaceareaoftheirinnerwalls. This57iswhatseparatessuccessfulspacesandcitiesfromunsuccessfulonessaysAnthonyTownsendanurbanplannerattheInstitutefortheFutureathink﹣tank.Almostanypublicspacecanassumesomeofthesefeatures.Forexampleanot﹣for﹣profitorganizationinNewYorkhas58BryantParkaonceabandonedbutcharminggardeninfrontofthecity'spubliclibraryintoahybridspacepopularwithofficeworkers.Thepark'smanagersnoticedthatalotofvisitorswereusingmobilephonesandlaptopsintheparksothey59Wi﹣Fiandaddedsomechairswithfoldablelecturedesks.Theideawasnottodistractpeoplefromtheflowersbuttoletthemcustomizetheirlittlebitofthepark. TheacademicnameforsuchspacesisthirdplacesatermoriginallycoinedbythesociologistRayOldenburginhis1989bookTheGreatGoodPlace.AtthetimelongbeforemobiletechnologiesbecamewidespreadMrOldenburgwantedto60betweenthesociologicalfunctionsofpeople'sfirstplacestheirhomestheirsecondplacesofficesandthepublicspacesthat61safeneutralandinformalmeetingpoints.AsMrOldenburgsawitagoodthirdplacemakesadmissionfreeorcheap﹣thepriceofacupofcoffeesay﹣offerscreaturecomfortsiswithinwalkingdistanceforaparticularneighborhoodand62agroupofregulars. Asmore63placespopupandspreadtheyalsochangeentirecities.Justasbuildingsduringthe20thcenturywerespecializedby64townswereaswellsaysMrMitchell.Suburbswereforlivingdowntownsfor65andotherareasforplaying.Buturbannomadismmakesdistrictslikebuildingsmultifunctional.Partsoftownthatweremonocultureshesaysgraduallybecomefine﹣grainedmixed﹣useneighborhoods. 51.A.additional B.vacant C.private D.narrow 52.A.development B.architecture C.technology D.purpose 53.A.specialized B.detailed C.splendid D.complicate 54.A.attractive B.cooperative C.multifunctional D.agreeable 55.A.Inaddition B.Forinstance C.Onthecontrary D.Meanwhile 56.A.control B.surround C.maximize D.dominate 57.A.similarity B.qualification C.presentation D.flexibility 58.A.manufactured B.transformed C.maintained D.simplified 59.A.installed B.required C.discovered D.invented 60.A.transfer B.confuse C.combine D.distinguish 61.A.serveas B.appealto C.identifywith D.putaway 62.A.reveals B.hires C.stirs D.draws 63.A.leisure B.public C.perfect D.third 64.A.function B.interest C.organization D.block 65.A.entertaining B.working C.socializing D.gathering
简直难以描述我当时激动的心情.Hardly.
某化学反应的微观过程如下图则下列说法中不合理的是
8分ArecentstudyofancientandmodernelephantshascomeupwiththeunexpectedconclusionthattheAfricanelephantisdividedintotwodistinctspecies.ThediscoverywasmadebyresearchersatYorkandHarvarduniversitieswhentheywereexaminingthegeneticrelationshipbetweentheancientwoollymammothandmastodontomodernelephants﹣theAsianelephantAfricanforestelephantandAfricansavanna热带草原elephant. OncetheyobtainedDNAsequences序列fromtwofossilsmammothsandmastodonstheteamcomparedthemwithDNAfrommodernelephants.TheyfoundtotheiramazementthatmodernforestandsavannaelephantsareasdistinctfromeachotherasAsianelephantsandmammoths. ThescientistsuseddetailedgeneticanalysistoprovethattheAfricansavannaelephantsandtheAfricanforestelephantshavebeendistinctspeciesforseveralmillionyears.TheseparationofthetwospeciestookplacearoundthetimeoftheseparationofAsianelephantsandwoollymammoths.Thisresultamazedallthescientists. Therehaslongbeenadebateinthescientificcommunitythatthetwomightbeseparatespeciesbutthisisthemostconvincingscientificevidencesofarthattheyareindeeddifferentspecies. PreviouslymanynaturalistsbelievedthatAfricansavannaelephantsandAfricanforestelephantsweretwopopulationsofthesamespeciesdespitetheelephants'significantsizedifferences.Thesavannaelephanthasanaverageshoulderheightof3.5metreswhiletheforestelephanthasanaverageshoulderheightof2.5metres.Thesavannaelephantweighsbetweensixandseventonsroughlydoubletheweightoftheforestelephant.Butthefactthattheylooksodifferentdoesnotnecessarilymeantheyaredifferentspecies.HowevertheprooflayintheanalysisoftheDNA. AlfredRocaassistantprofessorinthedepartmentofAnimalSciencesattheUniversityofMinoissaidWenowhavetotreattheforestandsavannaelephantsastwodifferentunitsforconservation保护purpose.Since1950allAfricanelephantshavebeenconservedasonespecies.Nowthatweknowtheforestandsavannaelephantsaretwoverydistinctanimalstheforestelephantshouldbecomeabiggerpriorityforconservationpurpose. 70.Oneofthefossilsstudiedbytheresearchersisthatof. A.theAsianelephant B.theforestelephant C.thesavannaelephant D.themastodonelephant 71.Theresearcher'sconclusionwasbasedonastudyoftheAfricanelephant's. A.DNAB.heightC.weightD.population 72.AlfredRoca'swordsweremainlyabout. A.thepurposeofstudyingAfricanelephants B.theconservationofAfricanelephants C.thewaytodivideAfricanelephantsintotwounits D.thereasonforthedistinctionofAfricanelephants 73.Whichofthefollowingcanbethebesttitleforthepassage? A.Naturalist'sBeliefaboutElephants. B.AmazingExperimentaboutElephants. C.AnUnexpectedFindingaboutElephants. D.ALongscientificDebateaboutElephants.
3分Gold Indiaistheworld'slargestmarketforgoldjewellery.InmuchofAsiatheMiddleEastandIndiaaroundtwo﹣thirdsofthejewellerypurchasedisusedasawayofsavingmoneyaswellasbeingwornasadecorativeitem.Theuseofjewelleryasawayofsavingmoneyisoftenimportantinruralareaswherefindingabankisdifficultorevenimpossible.Peoplebuygoldbecauseitsvaluestaysstrongevenwhenthevalueofmoneygoesdown. Goldjewelleryhasoftenbeenawoman'sonlyvaluablepossessionandinsomefamiliesthisisstilltrue.Awoman'sgoldcanthereforebeheronlyprotectionagainstpersonalmisfortune.Todayallaroundtheworldsalesofgoldjewelleryhavegrownbyover20%peryearbecauseeveryoneisconfidentthatgoldwon'tloseitsvalue.Demandforgoldissohighthatgoldminescannotsupplyenough. Gold'sfunctionasadecorationasjewelleryhasbeenevidentforthousandsofyears.Sincetheearliesttimesthebeautyandrichnessofgoldalongwiththefactthatitdoesnotchangeitscolourhasmeantthatithasalwaysbeenthefavouritemetalofjewellers.TheearliestgoldjewellerydatesfromtheSumeriancivilisationthatwasatitsmostpowerfularound6000yearsago.IntheMiddleAgesancientpeopleattemptedtomakegoldfromothermetals.Theyusedgoldinmedicinesdesignedtofightoldageandprolonglife. Goldalsoperformsimportantfunctionsinmanyaspectsofeverydaylife.Itdoesnotreactwhenitcomesintocontactwithothersubstancesandthisalongwithotheruniquepropertiesmakesitusefulinmedicineandmanyotherareasthatweconsideressentialtoourmodernlives. Duringheartsurgerygold﹣coveredstentareputintoblockedarteriestohelptheflowofblood.Thesegadgetsneedtobecarefullypositioned.GoldisidealforthisbecauseitshowsupclearlyonX﹣raysandcaneasilybelocatedbydoctors.Apacemakeradeviceinsertedinthebodytokeeptheheartbeatregularalsocontainsgold.Goldisusedinalloftheseapplicationsbecauseofitshighlevelofreliability.Goldalsohelpsdoctorstodeliverprecisedosesofpowerfuldrugstothepartsofthebodywheretheyarerequired. Goldhasmanyotherapplicationsinmodernlifeasitconductselectricityveryefficiently.Thestandardtouch﹣tonetelephonecontains33contactsmadefromgold.Air﹣bagsystemsfittedinmorethan30millioncarsaroundtheworldrelyongold﹣coatedelectricalcontacts.Andeverytimeyoutouchakeyonyourcomputeritstrikesagoldcircuitthatsendsyourcommandtothecomputer'smicroprocessor.Infactyouhaveprobablyneverrealisedhowmuchgoldthereisinyoureverydaylife. NoteAnswerthequestionsorcompletethestatementsinNOMORETHANTENWORDS. 78.Comparedwithmoneypeopleprefersgoldbecauseof. 79.Goldwereusedinmedicinesbecauseancientpeoplebelieveditcould. 80.Whycangoldbeusedinpacemaker? 81.Whatmakestheapplicationofgoldinelectronicproductspossible?.
12分AsmoreChineseturntotheInternetinsearchofinformationrelatedtohealthissuesandmedicalcareconcernisgrowingthatpeople33receiveincorrectorcontradictoryadvice34alackofregulationrelatedtoonlinehealthinformation. AsurveyconductedbythehealtheducationcenteroftheNationalHealthandFamilyPlanningCommissionshowedthattheWebhasbecomeamajorchannelforpeopleseekinghealth﹣relatedinformation.Around30percentofthose35surveysaidtheyhabituallysearchedtheInternetforself﹣diagnosistipsbefore36consultadoctor. HealthcontentiseasilyavailableandabundantincyberspacebutmuchofitisunprofessionalandincorrectMaoQun'anacommissionspokesmansaid. ThatmessagewasbroughthomerecentlywhenBaiduoneofChina'smostpopularonlinesearchenginesfound37atthecenterofacontroversyrelatedtomedicalinformation. Lastmonth36healthcareNGOsaskedtheBeijingauthoritiestoconduct38investigationintoBaiduoverwhattheyclaimedwereinappropriatemarketingpractices. TheNGOsmadeajointcomplaintwiththeBeijingAdministrationofIndustryandCommerce39accusetheNasdaq﹣listedonlinegiantofviolatingtheAdvertisementLawbyallowingmisleadingmedicaladstobelistedonitsforums论坛. MoreoversomeusersofBaiduTiebaanonlinecommunity﹣basedgroupdiscussionplatformhavechargedthecompanywithsellingdetailsfromitsforumtounregulatedprivatehospitalsmakingiteasierforthemtoreachpotentialclients. InresponseBaiduissuedastatement40itpromisedtoceasethecommercializationofforumsthatfocusonthediagnosisandtreatmentofillnessesandcouldinfluencepatients'recoveryandwell﹣being.BaidualsoinvitedNGOstoruntheforums.
下列实验现象的描述正确的是
3分Theelectricrevolution Themainreasonswhyelectriccarsarenotmorepopularatpresentaretheirpriceandtheirrelativelysmallrange. Existingbatterysystemsonlyallowelectriccars33traveladistanceofbetween100and160km.Howeverthisdistancemaynotbeaproblemforurbandrivers.ArecentSydneystudyreportedthat70percentofjourneyswere30kmorlessandrecentdatafromtheUSsuggeststhat77percentoftrips34takethereare48kmorless. AninnovativecompanycalledBetterPlaceisaimingtomakeelectriccarsanoptionforalldrivers.Itwantstoseeexistingvehiclesreplacedbyelectricvehicleswhichitsaysofferanumberofbenefits.Firstlytheycanbepoweredbyrenewableenergywhichproduceszeroemissions.35ismoreimportantisthatelectricmotorsaremoreefficientandcanconvertmorethan90percentofpowerintomovement.36achieveitsaimBetterPlaceplanstousetechnologyalreadyavailable. Theplanissimplebutrevolutionary.Itstartswiththeinstallationofahomechargepointandthroughthisthevehiclewillbepluggedintotheelectricitychargepointwheneveritisinthegaragetypicallyatnight.Inthemorningwithafullychargedbatterythecariscapableofasmuchas160kminurbanmotoringconditions.37thehomechargepointthebatterycanbetoppedupbychargepointsatworkandatsupermarkets. 38batteryislinkedtoacontrolcentrebysmarttechnologyinsidethevehicle.BetterPlacecanthenensurethatthecarischargedwithelectricityfromrenewablesourcesatthecheapestprice.For39longtripsanavigationsystemdirectsthedrivertothenearestswitchstation40thebatterycanbereplacedwithachargedonebyarobotwithinacoupleofminutes.
8分Gettingyourfootinthedoorislikewinningthelottery.It'sliterallylikewinningthelotteryifyougettohaveacareer.AndI'vealwaysfeltokaynowI'vegottenthisshotandI'mluckytohavegottenthisshotandifIdon'tdothistothebestofmyabilityI'vewastedthisincrediblygoldenopportunity.Andthat'salwaysbeenwhathaspropelled激励me. That'swhatLeonardoDiCapriosaidinaninterviewandthere'snodenyingthathehaspropelledhimselfprettyfar.HestarredinsomeofthebiggestfilmsofhisgenerationplayingleadrolesinTheAviatorInceptionTheGreatGatsbyandTheWolfofWallStreet.PlushowcanweforgetTitanic? LeonardoDicapriothehandsomemanfromTitanicwithboyishgoodlooksandgreatcharmwouldgoontobecomeoneofthebestandmostaccomplishedactorsofhisgeneration﹣oneofthemostpopular.YesDiCapriowasonceregardedasanactordefinedentirelybyhisgoodlooksandyet﹣overthecourseofthepastdecade﹣he'smanagedtochangepeople'smind. OnSundaynightthe41﹣year﹣oldactorfinallytookhomehisfirstOscarActorinaLeadingRoleforhisperformanceinTheRevenant. ToalengthyandloudapplausefromtheaudienceDiCapriotookthestagebutheusedthetimetohighlightatopicmuchbiggerthanhimselfglobalwarming. DiCaprioalwaysfightsforagoodcause.OnSept.26th2015intheGlobalCitizenFestivalinNewYorkCitytheactorurgedeveryonetosavetheplantetandhelptheunderprivileged弱势群体. DiCapriohasbeenstrivingmorenotonlytogettheOscarawardbutalsotogivetheaudienceagreatmovieandthebestperformanceoftheroleassignedtohim.Heknewearlyon﹣fromtheageofaround15﹣thatpursuingcharacterswithdepthismorevaluablethanappearinginjustanyfilmforthesakeofabiggerpaycheck.Heputthepotentialofbuildingacareerinmoviesbeforeanydesireforfameandmoreparticularlyfortune. NoteAnswerthequestionsorcompletethestatementsinNOMORETHAN10WORDS 78.HowdidDiCapriodescribehiscareerintheinterview? 79.InthepasttenyearsDiCapriosuccessfullyturnedfromintooneofthebestactorsofhisgeneration. 80.AccordingtothepassageDiCapriokeepsstrivingforsomethingmorethanfilmactingandinspirespeopletoand. 81.WhathasDiCapriocherishedmostsincehegothisfootintheactingcareer?
向一定量硫酸和硫酸铜的混合溶液中逐滴加入一定质量分数的氢氧化钠溶液直至过量．某同学依据实验事实绘制了如图所示的曲线．下列说法正确的是
3分调查显示非洲孩子们梦想能获得干净的引用水免费的教育以及平等的权利.access .
2分直到他走出空调房间才意识到今天有多冷.Not….
根据下列装置结合所学化学知识回答下列问题 1写出图中标号仪器的名称①② 2实验室制取少量二氧化碳时发生装置和收集装置最好选用填字母下同如需随时控制反应速率并节约药品发生装置最好选用 3实验室用高锰酸钾制取氧气时其反应的化学方程式为． 4如用F装置收集氧气判断氧气是否收集满的方法是．
这个演讲旨在鼓励年轻人学会以积极的方式面对生活中遭遇的困难.intend.
8分BradclosedthedoorslowlyasSuelefthometovisithermother.32ExpectawholedaytorelaxhewasthinkingwhethertoreadthenewspaperorwatchhisfavouriteTVtalkshowonhisfirstdayoffinmonths.Thiswillbe33awalkintheparkhe'dtoldhiswife.I'lllookafterthekidsandyoucangovisityourmom. Thingsstartedwellbutjustaftereighto'clockhisthreelittlegoodkids﹣MikeRandyandAlex﹣camedownthestairsintheirnightclothesandshoutedbreakfastdaddy.WhenfoodhadnotappearedwithinthirtysecondsRandybeganusinghisspoononAlex'shead34itwereadrum.Alexstartedtoshoutloudlyintimetothebeat.MikechantedWhere'smytoastwhere'smytoastinthebackground.Bradrealizedhisnewspaperwouldhavetowaitforafewseconds. Lifebecameworseafterbreakfast.MikeworeRandy'sunderwearonhishead.Randylocked35inthebathroomwhileAlexshoutedagainbecausehewasgoingtowethispants.Nobodycouldfindcleansocks36theywerebeforetheirveryeyes.Someone37nameNotMehadspilledawholeglassoforangejuiceintothebasketofcleanclothes.Bradknewthetalkshowhadalreadystarted. Byteno'clockthingswereoutofcontrol.Alexwaswonderingwhythefishinthejarrefusedhisbreadandbutter.Mikewastryingtoshowoffhistalentbydecoratingthekitchenwallwithhiscolourpencils.Randythankfullyappeared38drawapicturequietlyinthefamilyroombutcloserexaminationshowedthathewaseatingapplejamstraightfromthebottlewithhishands.Bradrealizedthatthetalkshowwasoverand39readwouldbeimpossible. Atexactly1117Bradcalledthedaycarecentre.Isuddenlyhavetogointoworkandmywife'saway.40Ibringtheboysoverinafewminutes?TheanswerwasobviouslyyesbecauseBradwassmiling.
下列实验没有体现控制变量思想方法的是
6分Beijingishardlyaloneinitsairpollutionproblems.TheworldHealthOrganizationhassaidthatroughlyhalfoftheworld'surbanpopulationisexposedtopollutionatleast2.5timeshigherthanitrecommends. WhileitmaytakeyearstofixthisglobalprobleminnovativemindsintheAsiaregionhavecomeupwithcreativesolutionsforlivingwithairpollution. DIYPurifier ThomasTalhelmstartedworryingabouttheairinsidehisBeijinghomeduringairpocalypse空气末日in2013whenBeijing'sairqualityindexskyrocketedtoaterrifying755. Thescholarcouldn'taffordtheluxuryofanexpensiveairpurifier.Filters过滤器areactuallyverysimple﹣ahighefficientfilterisallyouneedtogetover96%ofthePM2.5hesaid. WiththreeofhisfriendsTalhelmcreatedSmartAiranairpurifierconsistingofabasichouseholdfanwithahighefficientfilterattachedtoit. Itworksasefficientlyasthebigbrandssellingforthousandsofdollarsremovingmorethan90percentofPM2.5inyourroomaccordingtoTalhelm'sresearch. InvisibleMask Infipure'snosemaskclaimstocut99%ofPM2.5withoutthetroubleofasurgicalfacemask. Thefiltersmadefromspecialmaterialsareinsertedintoyournoseandaimtobeundetectable. Peoplecareabouttheirhealthbutdon'twantallthedownsidesthatcomewithatraditionalfacemaskInfipureco﹣founderFrancisLawexplained. PlantBackpack TaiwaneseartistChuiChihhasdesignedasurvivaldeviceforanapocalypticworld. NamedVoyageonthePlanetapottedplantishousedinsideaclearbackpackhookeduptotwotubestobringfreshairtoafacemask.It'saboldabstractideafromanoxygentank. SmogVacuum DaanRoosegaardehasbeenworkingonasmogvacuumthatwillsuckpollutantsfromtheskytothegroundlikeavacuummakingwayforcleanair. AbyproductofthissmogvacuumnamelyTheSmogFreeToweristhesmogring﹣apieceofjewelrymadefromsmogparticulates微粒. Thepollutionwesuckupthesmallparticulateswedon'tthrowthemaway.WeputthemunderpressureforacoupleofweeksandtheycrystallizecreatingsomethinglikeadiamondRoosegaardeexplains. 70.ThomasTalhelminventedSmartAirforallthefollowingreasonsexcept. A.thehighpriceofthebigbrands B.thehelpfromthreeofhisfriends C.thepoorqualityoftheindoorair D.thesimpleprinciplebehindthedevice 71.Ifsomeonewantstotravelaroundinthosepolluteddayswhichproductwillhemostprobablychooseforthesakeofconvenience? A.SmartAir. B.Infipure'snosemask. C.VoyageonthePlanet. D.TheSmogFreeTower. 72.Inwhichsolutiontheinventoralsomakesuseofthedustcollectedfromthepollutedair? A.DIYPurifier. B.InvisibleMask. C.PlantBackpack. D.SmogVacuum.
20分以下是2014年中国某城市交通事故发生原因的调查信息统计表请根据此表写一篇120﹣150字的文章.你的文章需包括 1.简要描述下表 2.谈谈你的看法和建议
30分Twofriendshaveanargumentthatbreaksuptheirfriendshipforevereventhoughneitheronecanrememberhowthewholethinggotstarted.Suchsadeventshappenoverandoverinhighschoolsacrossthecountry.51accordingtoanofficialreportonyouthviolenceinourcountrytodaythegreatestthreattothelivesofchildrenandadolescentsisnotdiseaseorstarvationorabandonmentbuttheterriblerealityofviolence.Giventhatthisisthecasewhyaren'tstudentstaughttomanage52thewaytheyaretaughttosolvemathproblemsorstayphysicallyfit? Firstofallstudentsneedtorealizethatconflictis53.Areportindicatesthatmostviolentincidentsbetweenstudentsbeginwitharelativelyminor54.Forexampleafightcouldstartoverthefactthatonestudenteatsapeanutbuttersandwicheachlunchtime.55 thesandwichcanleadtoinsultswhichinturncanleadtoviolence.Theproblemisn'tinthesandwichbutinthewaystudentsdealwiththeconflict. Oncestudentsrecognizethatconflictisunavoidabletheycan56thegoldenruleofconflictresolutionstaycalm.Oncethestudentfeelscalmerheshouldchoosewordsthatwillcalmtheotherpersondownaswell.Rudewordsandaccusationonlyaddfueltotheemotionalfire.Ontheotherhand57wordsspokenatanormalsoundlevelcanputoutthefirebeforeitexplodesoutofcontrol. Afterbothsideshavecalmeddowntheycanuseanotherkey58forconflictresolutionlistening.Listeningallowsthetwosidestounderstandeachother.Onepersonshoulddescribehisorhersideandtheotherpersonshouldlistenwithoutinterrupting.Afterwardthelistenercanasknon﹣threateningquestionstomakethespeaker'spositionclear.Thenthetwopeopleshouldchange59. 60studentsneedtoconsiderwhattheyarehearing.Thisdoesn'tmeantryingtofigureoutwhat'swrongwiththeotherperson.Itmeansunderstandingwhattherealissueisandwhatbothsidesaretryingto61.Forexampleashoutingmatchoverapeanutbuttersandwichmighthappenbecauseonepersonthinkstheotherpersonisunwillingtotrynewthings.StudentsneedtoaskthemselvesquestionssuchastheseHowdidthisstart?WhatdoIreallywant?WhatamIafraidof?Astheissuebecomes62theconflictoftensimplybecomessmaller.Evenifitdoesn't63thoughthelpsbothsidesfigureoutabettersolution. Afterstudentsstartedaconflictresolutiontherehasbeenanincreaseinstudent64.Learningtoresolveconflictscanhelpstudents65friendsteachersparentsbossesandcoworkers.Inthatwayconflictresolutionisabasiclifeskillthatshouldbetaughtinschoolsacrossthecountry. 51.A.Asaresult B.Infact C.Bycontrast D.Onthecontrary 52.A.conflict B.lives C.relationships D.affairs 53.A.violent B.global C.unresolved D.unavoidable 54.A.remark B.assumption C.insult D.resolution 55.A.Preferencefor B.Particularityabout C.Complaintover D.Laughterover 56.A.interpret B.practice C.assess D.bend 57.A.soft B.tough C.critical D.clear 58.A.measure B.strategy C.assessment D.application 59.A.responses B.attitudes C.roles D.intentions 60.A.Contrarily B.Relatively C.Consequently D.Finally 61.A.accomplish B.ignore C.foresee D.seek 62.A.wider B.clearer C.morecomplex D.morecritical 63.A.unselfish B.initial C.inspiring D.careful 64.A.cooperation B.argument C.gratitude D.support 65.A.admire B.select C.dealwith D.backup
10分Giftcertificatesorrathertheirhigh﹣technewreplacementsgiftcardsareAmerica'smostpopularpresent.Theysparegift﹣giversthetensionofchoosinganythingspecificandreceiversthehorrorofhavingtokeeptheresult.Retailerslikethemtoobecausetheyarequiteprofitable.Butlikemostgoodsintherecession衰退theyhavebecomehardertoshiftpromptingsomeradicalredesigns. Giftcardsareprofitablebecauseretailersreceivemoneyforthemupfromandaround10%ofthemareneverredeemed收回accordingtoLewPaineoftheGFKGroupamarket﹣researchfirm.Whenpeopledousethemtheyoftenspendmorethantheamountgivenonproductswithhighmargins. Butsalesofgiftcardsweredownbyaround6%lastyearinAmericatoabout25billionpartlybecausediscountsinstoresweresosteepthatcustomerssawmorevalueinbuyingproductsdirectly.Bankruptcies破产amongretailersalsoscaredpeopleawayfromgiftcardsforfearthatstoreswouldnotbearoundtohonourthem.Somefinancial﹣servicescompaniesthatoffergiftcardswhichcanbeusedinvariousstoresincludingVisaandAmericanExpresscameunderfireforchargingmonthlymaintenancefeesonunspentbalances. Analystsexpectanothertoughholidayseasonforgiftcardsthisyear.Saleswillbedownbyabout5%projectsArchstoneConsultingwhichstudiesthebusiness.Retailersaretryingtocounterthisdeclinebymakinggiftcardsmoreattractive.Oneapproachistoaddnifty俏皮的packaging.Targetforexampleissellinggiftcardsthatdoubleaswind﹣uptoysorplayrecordedgreetings.Otherretailershavelaunchedschemesthatletpeoplee﹣mailoneanotherelectronicgiftcertificateswhichthereceiverscanthenprintoutforuse. Someretailershaveevengivengiftcardsawayinanefforttodrumupbusiness.NeimanMarcusforexamplesent50giftcardstobigcustomerstotemptthembackforfurthershopping.Targetwillgiveal0giftcardtopeoplewhospendl00beforenoonontheFridayafterThanksgivingwhichisconsideredthestartoftheholidayshoppingseason.Suchhandoutscanbecheaperthansharpstore﹣widediscountswhichproveddestructivetoprofitslastyear.Expirationdatesaddasenseofurgencywhichretailersareeagertopromote. NoteAnswerthequestionsorcompletethestatementsinNOMORETHAN10WORDS 78.Thereasonforthepopularityofgiftcardstogift﹣giversisthattheydon'thavetoworryabout. 79.Somefinancial﹣servicescompaniesthatoffergiftcardswerecriticizedlastyearbecause. 80.Giveoneexampleofretailers'respondingtothedeclineofthesalesofgiftcardsaccordingtothepassage. 81.Retailersgaveouthandoutstopromoteconsumptionlastyearbuttheireffortsturnedout.
ABC三种固体物质均不含结晶水的溶解度曲线． 1A中混有少量的B是可用方法提纯． 2t2℃时A物质的饱和溶液为了进一步提高该溶液溶质质量分数可进行的操作是． 3对于溶解度曲线上的点p以下描述一定正确的是． aABC溶液的溶质质量分数相同bC的溶液100g有10g溶质cB溶液处于不饱和状态dAC溶液质量相等
根据图中提供的信息请回答下列问题 1硅原子的电子数为 2BCDE中属于不稳定结构的有 3图中元素化学性质相似是 4CE两种元素组成化合物的化学式为．
3分他明年将实施的计划包括健身运动参加考试和面试出国留学以及去欧洲旅游.carry .
3分Thebestjobintheworld? Chocolateconsultant Thiscouldwellbethebestjobforanyonewitheventhe51passionforchocolate﹣andyesjobslikethesereallydoexist.Therearelotsofdifferenttypesofchocolateconsultant.LouiseThomashasworkedinthechocolateindustryfortwoyearsandhasbeen52aboutchocolate.Shebecame53bythelackofeducationandawarenessregardingfinechocolatesostartedherowncompanytoshareherloveofthecocoabean.Shenowrunstastingstofindan54chocolateforeverycustomerortoextendtheirrange.Ifyoudon'tyethavewhatittakestobeachocolateconsultantyoucanstillworkwithchocolateasapastrychef. LEGO55 Whohasn'tatsomepointintheirlifesatdowninfrontofaboxofLegoand56buildingorhelpingsomeoneelsetobuildafantasticcreationinmulti﹣colouredblocks?Forsomepeoplethisbecomesmorethanjustsomethingyoudidasakid.Legohasanumberof57whoworkwiththecompanytocreatesetsandbuildmodelsforthem.TheyworkagainstfairlytightbudgetsandthematicrestrictionsandarebasedinLegolandDiscoveryCentresaroundtheworld.Howevercompetitionforthejobsis58withestimatesvaryingastoexactlyhowmanythereareintheworld﹣from9to30.Thelatestonetogetajobwas23﹣year﹣oldAndrewJohnsonandthencompetedinatoughthree﹣roundbuild﹣off5945othercompetitors.Ifyoulovechildhoodtoysbutdon'tfancybuildingthemwhynotconsiderworkinginatoyshop? Sharktankcleaner Windowcleaningisprobablynotthemostfunofprofessions.Howeveraddintherequirementtoshareyourjobwithalotofsharkswhilesimultaneously同时地60byacrowdofpeopleallofwhomarenodoubtsecretlyhopingatleastoneofthesharksisfeelingalittlehungryandsuddenlythe61levelsriseupalevelortwo.Howeverifyouwanttoworkwithfishperhapsthejobwouldbeagoodchoice. Professionalsleeper 62you'readdictedtoyouralarmo'clockorspendalldayatyourdeskyawninganddrinkingcupsofcoffeetostayawakethenmaybeyoushouldconsiderturningyourcommentsintoaprofitablecareer.Believeitornotyoucanactuallygetpaidtowearthepajamas.63theseprofessionalsleepersparticipateinalotofuniversitystudiesonsleepordreamsetc.todecidewhetherthebedsarecomfortableornot.In2009duringanartshowatTheNewMuseumofContemporaryArtinNewYorkwomenwerepaidtosleepaspartofalivingartexhibitionsoyouneverknow64youcouldbeaskedtorestyourheadnext.Ifyouenjoyyoursleepyouprobablywantto65jobsthatleadtosleepwithdrawal. 51.A.greatest B.blind C.smallest D.intense 52.A.worried B.curious C.scared D.passionate 53.A.lost B.frustrated C.enthusiastic D.inferior 54.A.particular B.biggest C.sweet D.bitter 55.A.examiner B.seller C.competitor D.builder 56.A.takenup B.setabout C.givenoff D.gotin 57.A.professionals B.bosses C.purchasers D.competitors 58.A.fierce B.open C.fair D.international 59.A.cooperatingwith B.beating C.discussingwith D.encouraging 60.A.warned B.helped C.watched D.admired 61.A.difficulty B.interest C.income D.profit 62.A.Although B.Because C.If D.Unless 63.A.Rarely B.Contrarily C.Consequently D.Typically 64.A.why B.howlong C.where D.howoften 65.A.avoid B.accept C.create D.offer
离高考大约还有三个月的时间同学们都在积极有效地开展复习工作.请你谈谈你最后阶段3月﹣5月的复习计划以及制定该计划的思考或缘由. 写作内容必须包括以下两点 1未来一段时间内具体的复习计划 2制定该计划的原因分析.
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