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化学用语是学习化学的基本工具，请用化学符号填空． （1）地壳中含量最多的金属元素： （2）2个氮分子： （3）硫酸亚铁： （4）...
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化学用语是学习化学的基本工具.请用化学符号或化学式填空1+3价的铝元素2氦气3天然气的主要成分4硝酸
化学用语是学习化学的基本工具请用化学符号或化学式填空12个氢原子_______2硝酸_____3天然
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化学用语是学习化学的基本工具请用化学符号或化学式填空1形成酸雨的气体有氮氧化物和.22个硫酸根离子.
化学用语是学习化学的基本工具请用化学符号或化学式填空1天然气的主要成分是写化学式22个镁离子
化学用语是学习化学的基本工具请用化学符号或化学式填空1形成酸雨的气体有氮氧化物和.22个硫酸根离子.
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化学用语是学习化学的基本工具请用化学符号或化学式填空1形成酸雨的气体有氮氧化物和.22个硫酸根离子.
化学用语是学习化学的基本工具请用化学符号或化学式填空12个氢原子_________2镁离子33个氧分
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中宁九小六年级有240名师生去参观枸杞博物馆运输公司有两种车辆可以选择 1限坐50人的大客车．每人票价5元如满座票价可打八折 2限坐10人的面包车．每人票价6元如满座票价可按75%优惠 请你根据以上信息为六年级师生设计一种最省钱的租车方案并算出总租金．
20分YoumayhaveheardofOsceolaMcCartyan88﹣year﹣oldwomaninMississippiwhohadworkedforover75yearsasa1woman. Onedayaftersheretiredshewenttothebankanddiscoveredthathersmallmonthly2hadgrowntoover＄150000.Thentoeveryone'ssurprisesheturnedaroundand3almostallofthemoneytotheUniversityofSouthernMississippiUSMfora4fundforstudentswithfinancialneeds.Immediatelyshemadenational5. WhatyouhavenotheardishowOsceola'sgifthad6mylife.Iam19yearsoldandthefirst7ofanOsceolaMcCartyScholarship. Iwasa8studentandIwasdeterminedtogotoUSM.ButI9beingqualifiedforaregularscholarshipbyonepointontheentranceexamsandascholarshipwasthe10wayIcouldattend. OneSundayIcameacrossthestoryinthepaperaboutOsceolaMcCartyandhergenerous11.ThenextdayIwenttothefinancialaidofficeandtheytoldmetherewasstillnomoney12formebutifanythingcameupthey'dcall. AfewdayslaterIwasgoingoutwithmymother13thephonerang.IwastoldIhadbeenchosentobegiventhefirstOsceolaMcCartyScholarship.Iwas14! McCartyworkedhardherwholelifewashingclothesbyhand.Nowthatsheis15shesitsmostofthedayandreadstheBiblethatiswhensheisnotgettingrewards.EverytimeIgotovisithershehasanew16.She'sevengonetotheWhiteHouse.Sheissohappyandproud.WehavetriedtotalkherintogettingaVCR录像机soshecantapetheprogramsandsee17onTV﹣shejustsmiles. McCartygavememuchmorethanascholarship.Shetaughtmeaboutthegiftof18.NowIknowtherearegoodpeopleintheworldwhodogoodthings.Sheworkedhardandhelpedothersandinturnshehasinspiredmeto19whenIcansomeday.So20Iplantoaddtoherscholarshipfund. 1A.café B.buffet C.laboratory D.laundry 2A.expenses B.profits C.savings D.wages 3A.returned B.donated C.delivered D.removed 4A.welfare B.project C.scholarship D.research 5A.headlines B.customs C.sympathies D.doubts 6A.affected B.formed C.disturbed D.ruined 7A.designer B.receiver C.contributor D.reporter 8A.considerate B.dedicated C.casual D.sensitive 9A.advocated B.regretted C.missed D.avoided 10A.normal B.wrong C.legal D.only 11A.gift B.idea C.decision D.plan 12A.left B.raised C.available D.enough 13A.since B.before C.though D.when 14A.shocked B.excited C.puzzled D.encouraged 15A.retired B.dismissed C.promoted D.transferred 16A.job B.hobby C.life D.award 17A.everybody B.everything C.herself D.us 18A.giving B.understanding C.receiving D.loving 19A.giveup B.giveback C.giveoff D.givein 20A.suddenly B.originally C.gradually D.eventually
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25分Onceuponatimesometinyfrogsheldacompetition.Thefirsttoreachthetopofaveryhightowerwouldbethewinner. Abigcrowdgatheredaroundthetowertoseetheraceandcheerthemon. Theracebegan.Nooneinthecrowdreallybelievedthatanyofthetinyfrogswouldreachthetopoftower.Theywillnevergettothetop!Theywillneversucceed!someonesaid. Onebyonethetinyfrogsbegantocollapse退下. ThecrowdkeptshoutingItistoodifficult!Nofrogwillmakeit! Moretinyfrogsgottiredandgaveupbutonecontinuedclimbinghigherandhigher.Thisonewouldn'tgiveup. Intheendhewastheonlyoneleft﹣theonlyonetogettothetop.Theotherfrogsnaturallywantedtoknow:Howdidthefrogmakeit Onefrogsteppedforwardtoaskthewinner.Itturnedoutthatthewinnerwasdeaf. Hehadwonbecausehewasabletokeephisownmind.Hewasabletokeeptrying.Hecouldn'thearcriticism;neithercouldhehearpraise. Welearnalessonfromthisstory:don'tletothers'praiseorcriticismtoholdyoubackonyourwaytosucceed. [写作内容] 1以约30个词概括寓言故事的大意. 2然后以120个词就如何对待别人的批评和表扬这个主题发表你的看法并包括如下要点: 1叙述这个寓言给你的启示以及你对他人的批评和表扬的态度; 2以事例说明他人的批评或表扬给你的感受和对你的影响; 3谈谈中学生应该如何对待老师的批评和表扬. [写作要求] 可以使用自己或他人的故事也可以参照阅读材料的内容但不得直接引用原文中的句子; [评分标准] 概括准确语言规范内容合适篇章连贯.
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8分Sleepdeprivation缺失isanimportanthiddenfactorinloweringtheachievementofschoolpupilsaccordingtoresearcherscarryingoutinternationaleducationtests. Itisaparticularprobleminrichercountrieswithsleepexpertslinkingittotheuseofmobilephonesandcomputersinbedroomlateatnight.Sleepdeprivationissuchaseriousproblemthatlessonshavetobedraggeddowntoalowerleveltosuitsleep﹣deprivedlearnersthestudyfound.TheinternationalcomparisoncarriedoutbyBostonCollegefoundtheUnitedStatestohavethehighestnumberofsleep﹣deprivedstudentswith73%of9﹣and10﹣year﹣oldsand80%of13﹣and14﹣year﹣oldsidentifiedbytheirteachersasbeingnegativelyaffected. Inliteracy读写能力teststherewere76%of9﹣and10﹣year﹣oldslackingsleep.Thiswasmuchhigherthantheinternationalaverageof47%ofprimarypupilsneedingmoresleepand57%amongthesecondaryagegroup. Othercountrieswiththemostsleep﹣deprivedyoungsterswereNewZealandSaudiArabiaAustraliaEnglandIrelandandFrance.High﹣performingFinlandisalsoamongthemostlackinginsleep.CountrieswiththebestrecordsforgettingenoughsleepincludeAzerbaijanKazakhstanPortugaltheCzechRepublicJapanandMalta. Theanalysiswaspartofthehugedate﹣gatheringprocessforglobaleducationrankingstheTrendsinInternationalMathematicsandScienceStudyTIMSSandProgressinInternationalReadingLiteracyStudyPIRLS Ithinkweunderestimatetheimpactofsleep.Ourdatashowthatacrosscountriesinternationallyonaveragechildrenwhohavemoresleepachievehigherinmathsscienceandreading.ThatisexactlywhatourdatashowsaysChadMinnichoftheTIMSSandPIRLSInternationalStudyCenter. It'sthesamelinkforchildrenwhoarelackingbasicnutritionsaysMrMinnichbasedattheLynchSchoolofEducationBostonCollege.Ifyouareunabletoconcentratetoattendmentallyyouareunabletoachieveatyourbestlevelbecauseyourmindandbodyareinneedofsomethingmorebasic.Sleepisafundamentalneedforallchildren.Ifteachersreportsuchlargeproportionsofchildrensufferingfromlackofsleepit'shavingasignificantimpact.Butworsethanthatteachersarehavingtoadjusttheirinstructionbasedonthosechildrenwhoaresufferingfromalackofsleep.Thechildrenwhoaresufferingfromalackofsleeparedrivingdowninstruction. Thatmeansthateventhechildrenwhoaregettingenoughsleeparestillsufferingfromthissleep﹣relatedlowering. 1WhatdidtheresearchersofBostonCollegetrytofind A.Whychildrendon'tgetenoughsleep B.Howmanyhourschildrensleepeverynight C.Therelationshipbetweensleepandtestresults D.Therelationshipbetweensleepandhealth 2Manychildrensufferfromsleepdeprivationbecause. A.theysitinfrontoftheTVfortoolong B.theycanhardlysleepsoundlyanddeeply C.theirhomeworkoccupiestoomuchoftheirtime D.moderntechnologicaldevicesconsumealotoftheirtime 3Whichofthefollowingcountrieshasthemostsleep﹣deprivedstudents A.Japan B.Malta C.Finland D.Portugal 4Whyarechildrenwhogetenoughsleepalsovictims A.Becausetheyaredisturbedbysleep﹣deprivedstudents B.Becauseteachingisdrivendownbysleep﹣deprivedstudents C.Becausetheyhavetospendtimehelpingsleep﹣deprivedstudents D.Becausetheteacherswastetimediscipliningsleep﹣deprivedstudents
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10分Whatwillhighereducationlooklikein2050ThatwasthequestionaddressedTuesdaynightbyMichaelCrowpresidentofArizonaStateUniversity.We'reattheendofthefourthwaveofchangeinhighereducationCrowbeganarguingthatresearchuniversitiesfollowedtheinitialestablishmentofhighereducationpubliccollegesandland﹣grantschoolsinthetimelineofAmerica.Inlessthanahalf﹣centuryhesaidglobalmarketcompetitionwillbeatitsfastestratesofchangeeverwithseveralmultitrillion﹣dollareconomiesworldwide.Accordingtoarecentprojectionthenation'spopulationcouldreach435millionwithalargepercentageofthoseresidentseconomicallydisadvantaged.Inadditionclimatechangewillbemeaningfullyuncontrollableinmanypartsoftheworld.TheeverydaytrendsseentodaysuchasdecliningperformanceofstudentsatalllevelsparticularlyinmathandscienceanddecliningwagesandemploymentamongthelesseducatedwillonlycontinueCrowmaintainedandaretosaytheleastnotcontributingtofulfillingthedreamofclimbingthesocialladdermobilityqualityoflifesustainableenvironmentandlongerlifespansthatmostAmericansshare.Howisitthatwecanhavethesegreatresearchuniversitiesandhavenegative﹣trendingoutcomesCrowsaidinatalkIholdtheuniversitiesaccountable.Wearepartoftheproblem.AmongthethingsthatwedothatmakethethingsthatweteachlesslearnableCrowsaidarethestrictseparationofdisciplinesacademicrigidityandconservatismthedesireofuniversitiestoimitateschoolsatthetopofthesocialranksandthelackofthecomputersystemabilitythatwouldallowalargenumberofstudentstobeeducatedforasmallamountofmoney.Since2002whenCrowstartedbeinginchargeatArizonaState﹣whichhecallsthenewAmericanuniversity﹣hehasledmorethanthreedozeninitiativesthataimtomaketheschoolinclusivescalablefastadaptivechallenge﹣focusedandwillingtotakerisks.Amongthoseinitiativeswerearestructuringoftheengineeringandlifesciencesschoolstocreatemorelinkagesbetweendisciplines;thelaunchoftheSchoolofEarthandSpaceExplorationandtheSchoolofSustainability;thestartofaTeachersCollegetoaddressK﹣12performanceandincreasethestatusoftheEducationDepartmentattheuniversity;andbroadenedaccessincreasingthefreshmanclasssizeby42percentandtheenrollmentofstudentslivingbelowthepovertylineby500percent.UniversitiesmuststartCrownotedbybecomingself﹣reflectivearchitectsfiguringoutwhatwehaveandwhatweactuallyneedinsteadofwhatlegendtellsuswehavetobe.Researchuniversitiestodayhaveruntheircourseheadded.Nowisthetimeforvariety.DuringadiscussionafterwardCrowclarifiedandexpandedonsomeofhispoints.Hediscussedforexampletheschool'sdistance﹣learningprogram.Nearly40percentofundergraduatesaretakingatleastonecourseonlinehesaidwhichhelpstheschooltokeepcostsdownwhileadvancinginteractivelearningtechnologies.HesaidthatArizonaStateisworkingtoincreasethetransferandcompletionratesofcommunity﹣collegestudentsofwhomonlyabout15percenthistoricallycompletetheirlaterdegrees.We'vebuiltasystemthatwillallowthemtotrackintouniversitiesparticularlywhereculturallycomplexbarriersbeyondfinanceslimiteventhemostgiftedstudents.1ThefourthwaveofchangeinAmerica'shighereducationrefersto.A.publiccollegesB.land﹣grantschoolsC.researchuniversitiesD.initialhighereducation2WhichisNOTpartoftheAmericandreammostpeopleshareA.Peopleenjoyaqualitylife.B.Peoplelivelongerandlonger.C.Thefreedomtomovearound.D.Anenvironmentthatissustainable.3WhichisaninitiativeadoptedbyCrowatArizonaStateUniversityA.RestructuringtheteachersCollege.B.LaunchingtheSchoolofLifeSciences.C.Ignoringthelinkagesbetweendisciplines.D.Enrollingmorestudentsfrompoorfamilies.4WhichoneissimilartotheunderlinedwordarchitectinmeaningA.Theauthoroftheguidebookisanarchitectbyprofession.B.Ifyouwanttorefurnishthehouseconsultthearchitect.C.DengXiaopingisoneofthearchitectsofthePRC.D.Tomisconsideredoneofthebestlandscapearchitecthere.5Withthedistance﹣learningprogramArizonaStateUniversityisableto.A.enroll40%ofitsstudentsonlineB.keepcostsdownwithoutalossofqualityC.provideanevengreaternumberofcoursesD.attractthemostgiftedstudentsallovertheworld
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