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一组同学在探究平面镜成像的特点时，将点燃的蜡烛A放在玻璃板的一侧，看到玻璃板后有蜡烛的像，如图所示． （1）为了便于观察，该实验最好在 （选填“较明亮”或“较__”）的环境中进行；在实验中用...
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在做探究平面镜成像的特点实验时要在玻璃板前放一支点燃的蜡烛还要在玻璃板后面放一支没有点燃的蜡烛.对这
在探究平面镜成像的特点实验中将点燃的蜡烛放在玻璃板前眼睛应该在玻璃板选填前或后观察蜡烛的像验证像的虚
在探究平面镜成像的特点时我们用玻璃板代替平面镜做实验1在玻璃板前面放置一支点燃的蜡烛再拿一支没有点燃
在探究平面镜成像的特点时用玻璃板代替平面镜的目的是实验时将点燃的蜡烛放在玻璃板前眼睛应该在玻璃板选填
如图1是探究平面镜成像特点的实验装置.1除图1所示的实验仪器外还需用到的测量工具是.2实验时玻璃板要
在探究平面镜成像的特点时把一支点燃的蜡烛A.放在玻璃板的前面再拿一支外形与蜡烛A.相同的蜡烛B.来确
在探究平面镜成像特点的实验中小阳用右手将放在玻璃板前的蜡烛点燃发现玻璃板中的自己是用________
小红在做探究平面镜成像的特点的实验时进行了如下操作将一块玻璃板竖直放在桌面上把一支点燃的蜡烛A.放在
下图是探究平面镜成像特点的实验装置我们常用一块玻璃板一把直尺两根完全相同的蜡烛进行实验1用玻璃板代替
如图是小勇同学探究平面镜成像特点的实验装置1在实验中用透明的玻璃板代替平面镜主要是利用玻璃板透明的特
如图1是探究平面镜成像特点的实验装置.1除图1所示的实验仪器外还需用到的测量工具是刻度尺.2实验时玻
在探究平面镜成像的特点的实验中如图所示1实验中选取两个完全相同蜡烛的目的是2用玻璃板代替平面镜的目的
图17是研究平面镜成像特点的实验装置①此实验中用玻璃板代替平面镜主要是利用玻璃板透明的特点便于通过玻
孙悦同学在探究平面镜成像特点时是按如下实验步骤进行的a.将点燃的蜡烛放在竖直放置的玻璃板前如图所示b
在探究平面镜成像特点的实验中将点燃的蜡烛放在玻璃板前眼睛应该在玻璃板.填前或后观察蜡烛的像.在探究凸
如图所示是小方同学用两只外形相同的蜡烛探究平面镜成像的特点1用透明的玻璃板代替平面镜主要是利用玻璃透
如图是小勇同学探究平面镜成像特点的实验装置.1在实验中用透明的玻璃板代替平面镜主要是利用玻璃板透明的
云南中考如图是探究平面镜成像特点的实验装置.1除图1所示的实验仪器外还需用到的测量工具是______
在探究平面镜成像的特点时用玻璃板代替平面镜的目的是实验时将点燃的蜡烛放在玻璃板前眼睛应该在玻璃板
探究平面镜成像的特点时用玻璃板代替平面镜主要是利用玻璃板透明的特点便于_将其竖立在铺有白纸的桌面上将
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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.
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
某纯碱样品中含有少量氯化钠．为测定样品中碳酸钠的质量分数现称取该样品11g加入到盛有50g稀盐酸的烧杯中恰好完全反应最后称得烧杯中溶液的质量为56.6g．计算 1纯碱样品中碳酸钠的质量分数 2反应后所得溶液的溶质质量分数．
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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