首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
一个不透明的布袋里装有4个大小、质地均相同的乒乓球,球上分别标有数字1、2、3、4 (1)小明随机从布袋中摸出一个乒乓球,记下数字后放回布袋里,再随机从布袋中摸出一个乒乓球.请用列表或列树状图的方...
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
一只不透明的布袋里装有4个大小质地均相同的乒乓球每个球上面分别标有1234.小林先从布袋中随机抽取一
一个不透明的布袋中装有5个大小质地完全相同的乒乓球每个乒乓球上分别标有12345.小王先从布袋中随机
在一个不透明的袋子里装有四只标号分别为1234的乒乓球这些乒乓球除所标数字不同外其余均相同.先从袋子
一个不透明的袋子中装有4个大小质地都相同的乒乓球球面上分别标有数字﹣325﹣6搅匀后先从中摸出1个球
在一个不透明的盒子里装有三个分别写有数字-101的乒乓球形状大小一样先从盒子里随机取出一个乒乓球记下
小明和小刚做游戏一个不透明的布袋里装有4个大小质地均相同的乒乓球球上分别标有数字1234随机从布袋中
在一个不透明的袋子里装有3个乒乓球球上分别标有数字l23这些乒乓球除所标数字不同外其余均相同.先从袋
一个不透明的布袋里装有4个大小质地都相同的乒乓球球面上分别标有数字1-23-4.小明先从布袋中随机摸
在一个不透明的袋子里装有3个乒乓球分别标有数字123这些乒乓球除所标数字不同外其余均相同.先从袋子里
在一个不透明的袋子里装有3个乒乓球球上分别标有数字123这些乒乓球除所标数字不同外其余均相同.先从
在一个不透明的盒子里装有除颜色外其余均相同的2个黄色乒乓球和若干个白色乒乓球从盒子里随机摸出一个乒
一个不透明的布袋里装有4个大小质地都相同的乒乓球球面上分别标有数字1-23-4小明先从布袋中随机摸出
一个不透明的布袋里装有4个大小质地均相同的乒乓球每个球上面分别标有1234小林先从布袋中随机抽取一个
一个不透明的布袋里装有4个大小质地都相同的乒乓球球面上分别标有数字1﹣23﹣4小明先从布袋中随机摸
九1班召开联欢会采用抽签方式表演节目.在一个不透明的盒子里装有大小质地均相同的红黄蓝白色乒乓球各一
在一个不透明的布袋中有4个完全相同的乒乓球把它们分别标号为1234随机地摸出一个乒乓球然后放回再随机
一个不透明的布袋里装有4个大小质地均相同的乒乓球每个球上面分别标有1234.小林先从布袋中随机抽取一
一个不透明的布袋里装有4个大小质地均相同的乒乓球每个球上面分别标有1234.小林先从布袋中随机抽取一
一个不透明的布袋里装有4个大小质地均相同的乒乓球每个球上面分别标有1234.小林先从布袋中随机抽取
一个不透明的布袋里装有4个大小质地均相同的乒乓球每个球上面分别标有1234.小林先从布袋中随机抽取
热门试题
更多
Researchershavefoundbeescandobasicmathematicsinadiscoverythatdeepensourunderstandingoftherelationshipbetweenbrainsizeandbrainpower.RecentlyAstudyconductedbyresearchersfromRMITUniversityinMelbourneAustraliashowedthatbeescouldperformarithmeticoperationslikeadditionandsubtraction减法. Solvingmathproblemsrequiresacomplexlevelofinvolvingthementalmanagementofnumberslong﹣termrulesandshort﹣termworkingmemory.ThefindingthateventhetinybrainofahoneybeecangraspbasicmathematicaloperationshasapossibleeffectonthefuturedevelopmentofArtificialIntelligenceparticularlyinimprovingrapidlearning. RMIT'sProfessorAdrianDyersaidnumerical数字的operationslikeadditionandsubtractionarecomplexbecausetheyrequiretwolevelsofprocessing.Youneedtobeabletoholdtherulesaroundaddingandsubtractinginyourlong﹣termmemorywhilementallyusingskillfullyasetofgivennumbersinyourshort﹣termmemoryDyersaid.Ontopofthisourbeesalsousedtheirshort﹣termmemoriestosolvearithmeticproblemsastheylearnedtorecognizeplusorminusasabstractconcepts. Thefindingssuggestthatadvancednumericalcognition认知maybefoundmuchmorewidelyinnatureamongnon﹣humananimalsthanpreviouslysuspected. Ifmathdoesn'trequireamassivebraintheremightalsobenewwaysforustoincludeinteractionsofbothlong﹣termrulesandworkingmemoryindesignstoimproverapidAIlearningofnewproblemssaidDyer. Manyspeciescanunderstandthedifferencebetweenquantitiesandusethistosearchforfoodmakedecisionsandsolveproblems.Butnumericalcognitionsuchasexactnumberandarithmeticoperationsrequiresamorecomplexlevelofprocessing. Previousstudieshaveshownsomeprimates灵长目动物birdsbabiesandevenspiderscanaddand/orsubtract.ThenewresearchpublishedinScienceAdvancesaddsbeestothatlist. 1WhathavetheresearchersfromRMITUniversitydiscovered? A.Therelationshipbetweenbrainsizeandbrainpower. B.Long﹣termrulesandshorttermworkingmemory. C.Beescanperformcomplexarithmeticoperations. D.Beescandobasicmathematics. 2AccordingtoAdrianDyerbees'numericalcognition. A.requiresadditionandsubtractiontwocomplexprocessing B.hasapossibleeffectonthefuturedevelopmentofAI C.onlyinvolvestheirshort﹣termworkingmemory D.callsforalotofmathsknowledge 3Whatdoesthefindingofthenewresearchsuggest? A.Beescanrecogizetheexactnumber. B.Arithmeticoperationsexistinhumanandbees. C.Numericalcognitionhasbeenfoundinmanymorespecies. D.Someprimatesbirdsandevenspiderscanaddandsubstract. 4Whatcanbethebesttitleforthetext? A.ADiscoveryAbouttheTinyBrainofBees B.NewFindingsAboutBeesHavingNumericalCogintion C.NumericalCognitionRequiresaComplexLevelofProcessing D.TheRelationshipBetweenBrainSizeandBrainPower
某种品牌的产品共5件其中有2件次品小王从中任取两件则小王取到都是次品的概率是
顺次连接等腰梯形四边中点得到一个四边形再顺次连接所得四边形四边的中点得到的图形是
在直角坐标系中直线y=x+m与双曲线在第一象限交于点A在第三象限交于点D与x轴交于点CAB⊥x轴垂足为B且S△AOB=1 1求m的值2求△ABC的面积3求AD的长.
Astudybyresearchersshowedthattextingonmobilephonescouldhelpsmokersquitsmoking. Thestudy1publishonTuesdayinajournalshowedamongsmokers2receiveda12﹣week﹣longmobilephone﹣basedmessageonquittingsmoking6.5%stoppedsmokingbytheendofthestudy. TheresearchersfromtheSecondXiangyaHospitalofCentralSouthUniversityinChinasaidtheintervention干预couldhavea3greatreachthanin﹣persontreatments.Ithasgreatpotentialtoimprovepopulationhealthandshould4considerforlarge﹣scaleuseinChinaaccordingtothestudy. They5conductatrialacrossChinafromAugust2016toMay2017covering6totalof1369adultsmokers.Participantswereassignedtoa12﹣weekinterventionconsisting7eitherhigh﹣frequencyorlow﹣frequencymessagingortoacontrolgroupthatreceivedtext8messageunrelatedtoquitting.Twelveweekslater6.5%ofthemstoppedcontinuoussmoking9activeinthehigh﹣frequencygroup106%gotridofsmokinginthelow﹣frequencygroup.1.9%ofthemstoppedsmokinginthecontrolgroup.
Ihadmyfirstchocolatebaratfive.I'llneverforgetthedeliciouscomforting1.DuringWorldWarⅡwhentheRussianarmysweptwest2NaziGermanymanypeopleinTaurageescaped3.AniceladytookmetoHamburgonherwayof4whereIlivedonthestreetsalonelikethousandsofoilierchildreninthatwar﹣torncity.I5bystealingfood.Buttherewas6enough.Iwasskinandbones7tostarving. ThentheAmericantroopsarrivedwholookedbigandhealthy.8foodfromthemwaseasy.OneafternoonIwas9foodinamesstentanAmericansoldierliftedmeupbythecollar.Iwas10andIcouldseeitupsethim.TomysurprisehesaidHerehavesomeofthis.Hereachedintohisjacketandhandedmeachocolatebar.Itookasmall11.IthoughtI'dgonetoheaven. Thesoldiertookmetoanorphanage孤儿院12bytheRedCross.LaterIwassenttoanorphanageinAmericaandsoonafterafamily13me.Againaswiththatfirsttasteof14itwasasifI'dgonetoheaven.GrownupIgotan15treatingthetroubledsoldiers.16thesoldierssatinmyofficeandwonderedhowIcouldpossiblyunderstandthemorhelp17theirpainIwouldtellthemmy18andabouttheAmericansoldierGodsenttosavemylife. Inever19hisnamebutIrememberhiskindness.Isaid.AndthenIopenedadrawerinmydeskthatwasalways20andofferedthemsomechocolate. 1A.smell B.diet C.taste D.touch 2A.toward B.with C.by D.through 3A.inorder B.inpanic C.atpresent D.atwar 4A.sheltering B.handling C.disappearing D.fleeing 5A.survived B.experienced C.adjusted D.wandered 6A.ever B.still C.never D.even 7A.familiar B.close C.similar D.sensitive 8A.Begging B.Demanding C.Applying D.Stealing 9A.searchingfor B.preparingfor C.waitingfor D.longingfor 10A.puzzled B.scared C.disappointed D.astonished 11A.handful B.drop C.bite D.bar 12A.served B.raised C.powered D.run 13A.adapted B.adopted C.arranged D.abandoned 14A.fruit B.soup C.chocolate D.ice﹣cream 15A.profession B.education C.introduction D.organization 16A.However B.Whoever C.Whenever D.Whatever 17A.feel B.describe C.ease D.suffer 18A.advice B.story C.belief D.ability 19A.learn B.change C.consider D.forget 20A.rough B.empty C.smooth D.full
ThisIsWhyTrafficLightsAreRedYellowandGreen Everwonderedwhybluedoesn'tmeangoandbrownmeanstop?1 Theideathatredmeansstopandgreenmeansgohasimpactedourlivesinmorewaysthanjusttrafficsignals.Wehavebeentaughtfromayoungagethatthecolorredmeansdanger. 2.Butwhywerethoseparticularcolorschosenfortrafficlightsinthefirstplace?Forsomethingwehavetolookateverydaywhycouldn'ttheyhavebeenprettiercolorslikemagenta紫红andturquoise天蓝色? It'simportanttoknowthatbeforethereweretrafficlightsforcarsthereweretrafficsignalsfortrains.Atfirstrailroadcompaniesusedredtomeanstopwhitetomeangoandgreentomeancaution.Asyoucouldimaginetrainconductorsranintoafewproblemswiththecolorwhitemeaninggo﹣3withtrainconductorsthinkingtheywereallclearwhentheyreallyweren't.Railwaycompanieseventuallymovedtothecolorgreenmeaninggoandit'sbeenthatwayeversince. Asfarasredgoesthat'salwaysbeenacolorthatindicateddangerlongbeforecarswereevenaround.Redisthecolorwiththelongestwavelength.4.Thecoloryellowwasusedtocautiondriversbecauseithasaslightlyshorterwavelengththanredbutnotasshortasgreen. 5.Employthesedrivingrulesfirstandknowthattrafficlightshavecertainlycomealongway. A.Andthecolorgreenmeansit'sOKtomoveforward B.Turnsoutthere'saperfectlygoodexplanationforit C.Itcanbeseenfromagreaterdistancethanothercolors D.brightwhitecouldeasilybeseenfromadistancebyus E.brightwhitecouldeasilybemistakenforstarsatnight F.Whydon'tweusebluetomeangoandbrownmeanstop G.Sodon'tgetmadnexttimeyou'reimpatientlywaitingatatrafficlight
一个口袋内装有大小相等的1个白球和已编有不同号码的3个黑球从中摸出2个球. 1共多少种不同的结果 2摸出2个黑球有多少种不同的结果 3摸出2个黑球的概率是多少
IsuddenlyheardanelephantcryingasthoughfrightenedLookingdownIimmediatelyrecognizedthatsomethingwaswrongandrandowntotheedgeofthenearbankThereIsawMaShwewithherthree﹣month﹣oldcalfstrugglinginthefast﹣risingwateranditwasalife﹣and﹣deathstruggleHercalfwasfloatingandscreamingwithfearMaShwewasasneartothefarbankasshecouldgetholdingherwholebodyagainsttherushingwaterandkeepingthecalfpressedagainstherhugebodyEverynowandthentherushingwaterwouldsweepthecalfaway. Therewasasuddenriseinthewaterandthecalfwaswashedcleanoverthemother'sbodyandwasgoneMaShweturnedquicklytoreachitandpressedthecalfwithherheadandtrunk象鼻againsttherockybankThenwithahugeeffortshepickeditupinhertrunkandtrieduntilshewasabletoplaceitonanarrowshelfofrock. JustatthismomentshefellbackintotheriverIfshewerecarrieddownitwouldbecertaindeathIknewaswellasshedidthattherewasonespot地点whereshecouldgetupthebankbutitwasontheothersidefromwhereshehadputhercalf. WhileIwaswonderingwhatIcoulddonextIheardthesoundofamother'sloveMaShwehadcrossedtheriverandgotupthebankandwasmakingherwaybackasfastasshecouldroaring吼叫allthetimebuttohercalfitwasmusic. 1Themomenttheauthorgotdowntotheriverbankhesaw. A.thecalfwasabouttofallintotheriver B.MaShwewasplacingthecalfontherock C.thecalfwaswashedawaybytherisingwater D.MaShwewasholdingthecalfagainsttherushingwater 2HowdidMaShwemanagetosavehercalffromthefast﹣flowingwater? A.Byputtingitonasafespot B.Bypressingitagainstherbody C.Bytakingitawaywithher D.Bycarryingitonherback 3Howdidthecalffeelaboutthemotherelephant'sroaring? A.Itwasagreatcomfort B.Itwasasignofdanger C.Itwasacallforhelp D.Itwasamusicalnote 4Whatcanbethebesttitleforthetext? A.AMother'sLove B.ABraveAct C.ADeadlyRiver D.AMatterofLifeandDeath
InthenineteenthcenturyoneofAmerica'sgreatestwritersWaltWhitmanhelpedpeoplelearntovaluepoetry.Whitmancreatedanewkindofpoetry. WaltWhitmanwasbornineighteennineteeninNewYorkCity.DuringhislonglifehewatchedAmericagrowfromayoungnationtothestrongestindustrialpowerintheworld.AsayoungmanWhitmanworkedasaschoolteacheraprinterandanewspaperreporter.Hewasthirty﹣sixyearsoldwhenhepublishedhisfirstbookofpoetryineighteenfifty﹣five.HecalleditLeavesofGrass.Ithadonlytwelvepoems.Thepoemsarewritteninfreeverse.Thelinesdonotfollowanysetform.Somelinesareshort.Somearelong.Thewordsattheendofeachlinedonothaveasimilarsound.Theydonotrhyme. OneofAmerica'sgreatestthinkersandwritersimmediatelyrecognizedtheimportanceofLeavesofGrass.RalphWaldoEmersonpraisedWhitman'swork.Butmostotherpoetsandwriterssaidnothingandevendenouncedit.MostreadersalsorejectedWhitman'spoems.Thenewformofhispoetrysurprisedmanypeople.EvenhisownbrothertoldWhitmanthatheshouldstopwritingpoetry.ButWhitmanhadmanythingstosay.Andhecontinuedtosaythem.ReadersbegantounderstandthatAmericahadagreatnewpoeticvoice. WaltWhitman'spoemspraisetheUnitedStatesanditsdemocracy.ThepoetexpressedhisloveforAmericaanditspeopleinmanyways.ExpertstodaypraiseLeavesofGrassasamajorliterarywork.Ineighteenseventy﹣threeWaltWhitmansufferedastroke.HespentthelastyearsofhislifeinCamdenNewJersey.Whitmanwaspoorandweakduringthelastyearsofhislife.Hediedineighteenninety﹣two.SomecriticssayWaltWhitmanwasaspokesmanfordemocracy.Otherssayhewasnotaspokesmanforanything.Instead*theysimplycallhimagreatpoet. 1WhatcanweknowaboutWhitman? A.Hispoemshavethesamerhyme. B.HeisthefirstgreatpoetintheUSA. C.Hehelpedpeopletocreatenewpoems. D.Hispoemsshowhisloveforhiscountry. 2WhywasLeavesofGrassrefusedatfirst? A.Thepoemsarequiteshort. B.Theformofpoetryisspecial. C.Whitmanwasn'tfamousthen. D.Thereareonly12poemsinit. 3WhatdoestheunderlinedworddenouncedinParagraph3mostprobablymean? A.Accused. B.Downloaded. C.Published. D.Translated. 4Whatcanbeasuitabletitleforthetext? A.WaltWhitman﹣aGreatSoldier B.WaltWhitman﹣anUnfortunatePoet C.WaltWhitmanandLeavesofGrass D.TheFirstandGreatestPoetinAmerica
Aheadofthisyear'sLondonBookFairinMarchmediareportedariseininterestintranslatedworksamongBritishreaders.FortranslatorAnnaHolmwoodthissignalsthe1arriveofanewera. ThisisabigmomentforChinesefictionabroadsaysHolmwood2hastranslatedChineseliteratureforalmostadecade. HertranslationworkLegendsoftheCondorHeroesafantasynovelwrittenbyJinYongandLiuCixin'sscience﹣fictionbookTheThreeBodyProblemareshowninaNielsenreport3examplesoftwoofthemostpopularChinesefictionworksinBritainin2018. LanguagesingrowingdemandincludeChineseandArabic.accordingtotheNielsenreport.Itfoundthatagainstthecommonly4seenotmorethan3percentruleoftranslatedliterature'spresenceintheEnglish﹣languagebookmarketsthenumberfor2018was5.63percentinBritain5thetotalannualsaleswasworth﹩27.1million. CharlotteCollinstranslatorandco﹣chairoftheBritishTranslatorsAssociationsays:Aswecanseethisproportion比率6doubleinrecentyears…Thisis7realexcitingnews. TheGuardianquotes引用FiammettaRoccoadministratoroftheManBookerInternationalPrize8readfictionisoneofthe9goodwaysofputtingourselvesinotherpeople'sshoes.Theriseinsalesoftranslatedfiction10showhowhungryBritishreadersareforterrificwritingfromothercountries.
如图▱ABCD的周长为16cmAC与BD相交于点OOE⊥AC交AD于E则△DCE的周长为
已知如图矩形AOBC以O为坐标原点OBOA分别在x轴y轴上点A坐标为03∠OAB=60°以AB为轴对折后使C点落在D点处求D点坐标.
假设你是李华2022年北京冬奥会正面向全国学生招募志愿者你希望成为其中一员.请根据提示用英文给组委会写一封信: 1.自我介绍:年龄性别学历等; 2.个人条件:英语好善于交际等; 3.希望获得批准. 注意: 1.词数100~120左右; 2.书信格式及开头均已给出不计入总词数; 3.可以适当增加细节以使行文连贯. DearSir/Madam Yourssincerely LiHua
从A地到C地可供选择的方案有走水路走陆路走空中.从A地到B地有2条水路2条陆路从B地到C地有3条陆路可供选择走空中从A地不经B地直接到C地.则从A地到C地可供选择的方案有
SummerProgramsforTeens UniversityofMaryland:TERPYoungScholars ThisprogramistheperfectsummercampforacademicallytalentedteenagerswhowanttopursueacademicinterestsexplorecareeropportunitiesanddiscovercollegelifeattheUniversityofMaryland. Duringthreeweeksofintellectualexplorationteenscanstudywithstudentswhosharesimilarinterestsandcommunicatewithsomeoftheuniversity'sbestteachers.Uponsuccessfulcompletionstudentscanearnthreecollegecredits. CarpeDiem:TheUniversity﹣boundAdventure CarpeDiemsupportsbothAmericanandinternationalstudentsinapplyingtoauniversitybyprovidingprivateconsultation.This2﹣weekexperiencealsoincludestoursoffamousEastConstuniversitiesStudentswillalsohavetheopportunitytobuildtheirresumes简历byworkingwithwritingexperts. GreatBooksSummerProgram ThisisalivelywarmandwelcomingsummercampcommunityofoutstandingteenswholoveliteratureandideasInthepastelevenyearsithasgatheredmiddleandhighschoolstudentsfromacrosstheworldtoreadselectionsfromthegreatestworksofliteratureexperienceheateddiscussionsandenjoysummercampfunwithotherliterary﹣mindedstudents.Participantscangainconfidenceintheirabilitytoreadatextcloselyandexpresstheirideasclearlybothverballyandinwriting. ZealTravel Weofferourteenstwoweekandthree﹣weeklongtripstoHawaiiAlaskaAustraliaandSpain.Alltripsinclude15﹣25hoursofcommunityserviceactivities. Dependingonyourtripofchoiceyou'llbehelpingHawaiiansprotecttheirforestecosystemcaringfordogsinSpainworkingwithHabitatforHumanityandmuchmore.Everytripalsoincludesexcitingoutdooractivitieslikesurfingdrivingice﹣climbinghikingandmore.Thepossibilitiesareendlessandthereisazealtripforeveryinterest. 1Whichprogramoffersstudentstheopportunitytodevelopeacademicinterests? A.CarptDiem. B.ZealTravel. C.UniversityofMaryland. D.GreatBooksSummerProgram. 2WhatcanstudentsdoinGreatBooksSummerProgram? A.Learnhowtowritestories. B.Attendacampusculturalevent. C.Makefriendswithfamouswriters. D.Readanddiscussthegreatworksofliterature. 3WhatisspecialaboutZealTravel? A.Itincludesalotofthrillingoutdooractivities. B.Itprovidescommunityserviceforstudents. C.Itoffersstudentsexcitingfreetrips. D.Itwilllast3weeks.
Youneverknowhowfarakindactcango.Youdon'tknowwhoitcan1either.WhenGloriaPorterandJeffReickbegan2theyhadnoideahowmuchitwould3otherstoshower大量给予peoplewithkindness. 89﹣year﹣oldGloriaPorterwaslyinginhospital.Shecouldn'tleaveherward.Soto4boredomshewouldoftenstareoutsideherwindowtowatchconstructionworkersbuildingthenewfrontentrancetothehospital.Shewasn'texpectingoneofthe5towavetoher.Shecouldn'thelpbutwavebackatthekind6.Thiswasonlythestartofaspecial7betweenthetwo. JeffReickknewPorterwas8sohedecidedtosendakind9toherbyfindingsomechalkandwritingGetWellononeofthebeams梁facingher10.Ijustthoughtthatwas11Portersaid.SoIshoulddosomethingto12that. WhenPortersawconstructionworkersworkinghighabovethegroundonecoldwindydayshegrew13.ShewroteStaysafeonapieceofpaperwhichshethen14onthewindowfortheworkerstosee.WhenIsaw4Staysafe'onapieceofpaperI15andsaidtomycoworkers‘Didyouseethat?'Reicksaid. Thehospitalstafftookphotosofthatand16themonsocialmedia.Thesimpleactsofkindness17andmanypeoplewereemployedinsimilaractsincludingonewomanwhodelivered18pizzatotheconstructionworkers. Ijusttrytoleadbyexampleandneverexpectsomuch19Reicksaid.Ifeverybody20doesthingslikethattheworldwillbeabetterplace. 1A.disturb B.employ C.affect D.describe 2A.communicating B.singing C.arguing D.explaining 3A.require B.warn C.force D.encourage 4A.makefor B.putoff C.figureout D.escapefrom 5A.workers B.nurses C.doctors D.patients 6A.job B.inspiration C.gesture D.favor 7A.business B.connection C.difference D.trouble 8A.lonely B.upset C.ill D.poor 9A.1etter B.message C.note D.warning 10A.window B.entrance C.wall D.door 11A.impolite B.necessary C.familiar D.precious 12A.record B.return C.recover D.remember 13A.puzzled B.worried C.thrilled D.annoyed 14A.knocked B.installed C.placed D.drew 15A.camedown B.brokedown C.showedup D.turnedaround 16A.shared B.found C.mentioned D.deleted 17A.happened B.succeeded C.spread D.formed 18A.expensive B.free C.ordinary D.cheap 19A.participation B.satisfaction C.solution D.introduction 20A.merely B.apparently C.especially D.willingly
Iwasgettingreadytogotobedwhenthephonerang.Thiscouldnotbegood.Mymindracedthroughthelistoffamilymemberswhomightneedhelpbutthevoicewashardlyfamiliar. LindathisisLesley.Ididn'tknowLesleywell.Wedidoccasionallyspeakwitheachotherbuttosaywewerefriendswasnotappropriate.Iaskedwhatsheneeded.Perhapssomethingreallyawfulcausedhertoreachsomeoneshebarelyknew.InsteadsheaskedmeDoyouhaveroomforaturkey?Inyourfreezer?Wehadlotsofroominourfreezerandinfacttoomuch.SureIrespondeddidyourfreezerbreakdown?NotexactlyLesleyrepliedbutIwillexplainwhenIarrive. Minuteslatercameahugefreezertruck.Lesleysteppeddownandexplainedthelease租约ofthegrocerystoreherhusbandservicedhadrunoutandthattheyhadtoemptyallthefreezersthatnight.Thinkingitwasashametothrowawayallthisgoodfoodtheydecidedtodropofffoodtoanyoneshecouldthinkof.NoticingourfreezerwasprettyemptyLesleyaskedtofillitup.Ourhomewastheirlaststopandanythingleftwouldhavetobeputinourfreezer.AnhourlatereverythingfinishedIaskedherWhenwillyoucomebackforallthis?LesleylaughedWedon'twantitback.Itisyours!Thanksforhelpingusout!Thentheywavedgoodbyeanddroveaway. Forhelpingthemout?Weopenedourfreezerdoor.Insidewereallexpensivefoodsweneverboughtbutoftenlongedtotry.Wewerestrugglingtobuygroceriesyetitwasnotsomethingwesharedwithanyone.Howeverourneedsweremetinanunexpectedwaybythatcall. 1Howdidthewriterfeelwhensheheardthephoneringing? A.Relieved. B.Anxious. C.Shocked. D.Angry. 2WhatdoestheauthorindicatebytheunderlinedsentenceinPara.2? A.Theywereshortoffoodsupplies. B.Theirfreezerwasnotfrequentlyused. C.Theyweregladtoputtheturkeyinthefreezer. D.Theirfreezerwastoosmalltofillmuchfoodin. 3WhydidLesleycallupthewriter? A.Becausethewriterwashergoodfriend. B.Becausesomethingawfulhadhappened. C.Becausesheknewthewriterwasinneed. D.Becauseshedidn'twantfoodtogotowaste. 4Whatcanbethebesttitleforthetext? A.WhoIsMyAngel? B.UnexpectedBargains C.AFriendonSpeakingTerms D.DoYouHaveRoomforaTurkey?
YesterdayIclearedupmyhouseandImeanreallyclearedupmyhouse.Theroomthatgavethemostresultswasmyhusband'soffice.ThereIfound:oneright﹣footedshoesize10helosttheotheronesomewhereasetofStarWarsvideosandtwosmallchinacatssomeonegavemelastbirthday.Icollectedthesefindsandtookthemdownstairsandlogged登录ontowww.eBay.com:theanswertoallourrubbish. WhatiseBay?Itaimstoprovideaglobaltradingplatformwherealmostanyonecantradealmostanything.TheideacamefromPierreOmidyar.BorninParisOmidyarmovedtoWashingtonwhenhewasstillachild.AtHighSchoolhebecameveryinterestedincomputerprogrammingandaftergraduatingfromTuftsUniversityin1988heworkedforthenextfewyearsasacomputerengineer.InhisfreetimehestartedeBayasakindofhobbyoriginallyofferingtheservicefreebywordofmouth.By1996therewassomuchtrafficonthesitethathehadtoupgrade升级andhebegancollectingfees.JoinedbyafriendPeterSkollandin1998byhisdynamicCEOMegWhitmanhehasneverlookedback.Eveninthegreatdot﹣comcrashesofthelate1990seBaywentfromstrengthtostrength.ItisnowoneofthetenmostvisitedonlineshoppingsitesontheInternet. Ifyouthinkaboutitit'saperfectInternetidea.Allyouhavetodoistakeane﹣photowriteadescriptionfilloutasalesformandyou'reinbusiness;theworldisyourmarketplace. SomeofthemorebizarregoodsupforofferhavebeenapieceofFrenchbreadpartiallyeatenbyJustinTimberlakeadvertisingspaceonaman'sheadandapairofusedfalseteeth. OneweeklaterIamproudofhavingacleanandtidyhomeand£110incash.Someoneevenboughttheshoe. 1WhydidtheauthorlogontoeBay? A.Tosellsomethings. B.Tobuyshoesforherhusband. C.Toexchangethingswithotherusers. D.Tosearchforthingsusedattheoffice. 2WhatcanweinferfromParagraph2abouteBay? A.Itaimstoprovideafreeservice. B.Itwastheideaofahighschoolboy. C.Ithasbecomemoreandmoresuccessful. D.Itfacedadifficultsituationinthelate1990s. 3TheunderlinedwordbizarreinParagraph4isclosestinmeaningto. A.popular B.unusual C.valuable D.unacceptable 4WhatdoestheauthorthinkofeBay? A.Sheissatisfiedwithit. B.Sheisworriedaboutit. C.Sheshowsnointerestinit. D.Shethinksitwastesalotofmoney.
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. DearRita I'mgladthatyouwillcompeteinthefinaloftheChineseSpeechContest.Congratulationtoyou!Herearemyadviceonhowtomakegoodpreparationsforyourspeech. Firstpickainterestingtopicsothattheaudiencewon'tgetboring.Seconddobroadresearchesonthetopictosatisfytheaudience'shungerforknowledge.ThenwriteyourspeechandturntoyourChineseteachersforhelpwhichadvicewillbebeneficial.Besidesmuchattentionshouldbepayingtoyourvoiceorbodylanguage.Trytospeakasfluentaspossible.Inawordyou'dbetterdowhateveryoucanwinthecontest. Wherethereisawillthereisaway.Lookingforwardtohearingfromyourgoodnews. Yours Joana
Thisweekwe'resharingourfavoriterecentreads.Tohelproundoutourrecommendationswealsotappedsomefolkswhoyou'veheardonCodeSwitchbefore﹣novelistsscholarspoetsandpodcasters. AllYouCanEverKnowbyNicoleChung ThebookisanextraordinaryhonestandsympatheticlookatadoptionraceinAmericaandfamiliesingeneral.It'salsosuchanengagingread.Istayedupwaytoolateonenightreadingitbecausethestoryjustpulledmein.AndI'verecommendedmanyofmyfriendstoreaditsoIcantalkaboutitwiththem.﹣JasmineGuilloryauthorofTheWeddingDateTheProposalandtheforthcomingbookTheWeddingPart. BecomingbyMichelleObama It'sadeeply﹣movingcomingofagestoryofMichelleObamainherearlylife.Therearesuchmovinganecdotesabouthowthisfamilyjustinvestedeverythinginthepossibilityofgivingtheirchildrenabetterlife.It'snotasweetbookbutatthesametimeit'sdeeplyhopefulaboutthepossibilityofwhathappenswhenyouworkhardwhathappenswhenyoulovehard.﹣TayariJonesauthorofAnAmericanMarriageSilverSparrowandotherbooks. RageBecomesHer:ThePowerofWomen'sAngerbySorayaChemaly WhatreallyimpressedmeaboutthisbookisthisideathatwomenshouldbeallowedtoexpresstheirangerparticularlyinLatinAmericanfamiliesandcommunities.IjustthinkSorayagoesintothisincredibledetailcitingscientificstudiesanddifferentworksofliteraturethatreallyconveythenecessitytofemaleangernotonlyforthehealthofwomenbutforthehealthofequalityinsociety.﹣JeanGuerreroreporterwithKPBSandauthorofCrux:ACross﹣BorderMemoir. 1WhowroteTheWeddingDate? A.TayariJones B.JeanGuerrero C.JasmineGuillory D.SorayaChemaly 2Whichbooktellsabitterstorywithhope? A.Becoming B.AllYouCanEverKnow C.SilverSparrow D.Crux:ACross﹣BorderMemoir 3What'sthepurposeofthepassage? A.Tosellbooks. B.Tocommentonbooks. C.Tosharereviewsofbooks. D.Tocollectopinionsofbooks.
HONGKONG﹣Cross﹣borderbusesoperatedbyHongKongcompaniesonFridaystartedtrialrunsontheHongKong﹣Zhuhai﹣MacaoBridgeHZMBinpreparationforthebridge'supcomingopening. ThetrialrunsarrangedbythegovernmentsoftheChinesemainlandtheHongKongSpecialAdministrativeRegionSARandtheMacaoSARwouldlastforthreedaysandaimedattestingthereadinessofboundarycrossingfacilities设施ofthethreeplacestheHongKongSARgovernment'sTransportandHousingBureautoldXinhua. Twomajorcross﹣boundarycoachtradeassociationsinHongKongwereinvitedtosendbusesandmemberstoparticipateinthetrialruns. FreemanCheungsecretaryofHongKongGuangdongBoundaryCrossingBusAssociationsaidhisassociationwouldrunonebuswithabout10passengersonFridayandSaturdayrespectivelyaspartofthetrialruns. OurbusstartedatnoonfromtheHongKongBoundaryCrossingFacilitiesandranallthewaytoZhuhaiinabout40minuteshesaidaddingthatthejourneywassmooth. AlanChansecretaryofanothertradeassociationwhoparticipatedinthetrialrunsasapassengersaidtheclearanceproceduresatboundarycrossingfacilitiesofthethreeplacesallwentonwellandsmoothly. TheboundarycrossingfacilitiesofZhuhaiandMacaoinparticularareoperatedinacollaborative合作的waywhichhelpsremarkablyshortenthetimeneededfortheclearanceprocedureshesaid. TheHZMBsituatedatthewatersofLingdingyangofPearlRiverEstuaryisamega﹣sizeseacrossinglinkingtheHongKongSARZhuhaicityofGuangdongProvinceandtheMacaoSAR. The55﹣kmbridgeisthelongestbridge﹣and﹣tunnel隧道seacrossingintheworld. ThebridgeismeanttomeetthedemandofpassengerandfreightlandtransportamongHongKongtheChinesemainlandandMacaoandtoestablishanewlandtransportlinkbetweentheeastandwestbanksofthePearlRiver. 1Welearnfromthepassagethat. A.AlanChanparticipatedinthetrialrunsasadriver B.twocoachtradeassociationsinZhuhaitookpartinthetrialruns C.theHZMBislocatedatthewatersofLingdingyangofPearlRiverEstuary D.the55﹣kmbridgeisthesecondlongestbridge﹣and﹣tunnelseacrossingintheworld 2Whatisthemainideaofthesecondparagraph? A.Therouteofthetrialruns. B.Theeffectofthetrialruns. C.Thepurposeofthetrialruns. D.Theevaluationofthetrialruns. 3Whatdoestheunderlinedwordfreightinthelastparagraphmean? A.Goodsthataretransportedbytruckstrainsshipsorplanes. B.Linesofraisedwaterthatmovesacrossthesurfaceofthesea. C.Partsoftheseawherefisharecaughtinlargenumbers. D.Theregularrisingandfallingofthelevelofthesea. 4Whichofthefollowingcanbethebesttitleforthenewsreport? A.HZMBIstoEstablishNewLandTransportLink B.Cross﹣borderBusesStartTrialRunsonHongKong﹣Zhuhai﹣MacaoBridge C.Mega﹣sizeSeaCrossingLinkingHongKongSARZhuhaiandMacaoSAR D.BoundaryCrossingFacilitiesofZhuhaiandMacaoOperatedCollaboratively
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改.增加:在缺词处加一个漏字符号^并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. LastSundaywhileeatinginarestaurantInoticeabowlfullofdumplingsonthetablenexttomine.Theymusthavebeenleftbysomeone.Justthentheoldmanentered.JudgedfromhisclothesIbelievedshewaspoor.Hesawthedumplingsleftonthetable.Lookingshylyhesatdownandstartedeating.Theothersaroundlookedhimpuzzledbutsomeevenlaughed.Howeverafterfinishingthedumplingshewentuptothedonationboxesonthecounterputonehundredyuaninitandleftthatleftusallshockedandashamed.Weshouldn'tjudgebyapersonjustfromhisorherappearance.
Thetonsofplasticwe'redumpingintheoceansisfindinganewhome﹣thestomachsofourbeautifulmarineanimals.YetanotherreminderofthisfactwashedashoreinEasternIndonesiathisweek.Alargeamountofwasteincludingdrinkingcupsandflip﹣flopswasfoundinthestomachofawhalethatdiedoffthecoastnearKapotaIsland. The9.5﹣metrespermwhale抹香鲸wasfoundbyrescuersfromtheWakatobiNationalPark. Thewhalehadswallowed5.9kilogramsofplasticwastecontaining115plasticcupsfourplasticbottles25plasticbagsandmorethan1000otherkindsofpiecesofplasticparkchiefHeriSantosotoldthereporter. AlthoughwehavenotbeenabletodeducethecauseofdeaththefactsthatweseearetrulyawfulsaidDwiSupraptiamarinespeciesconservationco﹣ordinatoratWWFIndonesia.Shesaiditwasnotpossibletodetermineiftheplastichadcausedthewhale'sdeathbecauseoftheanimal'sadvancedstateofdecay腐烂.Butthisisonlythelatest. FourAsiannations﹣IndonesiathePhilippinesVietnamandThailand﹣accountfor50%oftheplasticwasteintheoceansaccordingtoareportbyenvironmentalcampaignerOceanConservancyandtheMcKinseyCenterforBusinessandEnvironment.ThePhilippinesissecondtoIndonesiawhenitcomestoputtingawayplasticwasteintheoceansaccordingtoastudypublishedinthejournalScienceinJanuary.Ofthe3.2millionmismanagedwasteitproduceseveryyear1.29millionendsupintheocean. Areportreleasedearlierthisyearstatedthattheamountofplasticintheoceanislikelytoincrease. 1Whatcanweknowaboutthespermwhale? A.Itsstomachisthehomeofplasticwaste. B.Itdiedofswallowinglotsofplasticwaste. C.Itwasthefirstwhaletoeatplasticwaste. D.Ithadeatenmuchplasticwastebeforeitsdeath. 2Whichcanbestreplacetheunderlinedworddeduceinparagraph3? A.confirm B.cause C.approve D.contain 3Whichcountrydumpsthemostplasticwasteintotheoceans? A.Thailand B.Indonesia C.Vietnam D.Philippines 4What'sthemainideaofthepassage? A.Philippinesputsaway1.29milliontonsofplastic. B.AspermwhalewasfounddeadnearKapotaIsland. C.Muchdumpedplasticwastewasfoundinadeadwhale. D.Weshouldtakemeasurestoreducethewasteinwhales.
在同一直角坐标系中一次函数y=kx﹣k与反比例函数y=k≠0的图象大致是
某企业的年产值在两年内从1000万元增加到1210万元求平均每年增长的百分率.
LikemanymilitarywivesIhadtostandthelongseparationsuntilmyhusbandretired.ThoughIsupportedhiminhischosencareerI1everymomentawayfromhim. To2ourseparationsIwroteletterseveryday.Imadeupdozensofsmall3forhimwhichIsecretlyputintohisbagsothathecould4themwhenhewasouttosea.Tothisdaythosenotesarestill5tous. 6in1996myhusbandretiredfromtheNavy.Buttheonlyjob7formyhusbandwassixandahalfhoursofdrivingawayinNorfolkVirginia. Wespenteightmonths8.Thatwasourhardestseparationperhapsbecausewehad9plannedtobeapartagain.He10toapplyforjobsintheareawherewehopedtolive.Weexpectedwewouldsoonbeabletobe11again. OnedayLouiecalledmewiththegood12.HefoundajobinsouthwestVirginia.Wewereexcited!Therewasonlyonesmall13.Louiewouldhavetoliveinacamper露营车whileourdaughtersandIlivedinalittlehouseanhourandahalfofdriving14.Mydaughterswere15enoughtotakecareofthemselves?SoIleftthemandstayedwithLouie. LouieandIspentseveral16weekstogether.OnemorningafterheleftforworkIsat17inthecampertryingtorememberanypossessionthatwasaspricelessasthe18westayedtogether.Icouldn't19asinglething.Thenallofusmovedintothatcamperandlivedthereforayear.Itwaspurejoy!I'velearnedthatthegreatest20IhaveisthetimeI'vespentwiththeonesIlove. 1A.spent B.enjoyed C.hated D.missed 2A.dealwith B.preparefor C.thinkof D.fightfor 3A.stories B.gifts C.letters D.notes 4A.receive B.discover C.consider D.write 5A.precious B.important C.strange D.necessary 6A.Once B.Again C.Soon D.Finally 7A.convenient B.common C.ready D.available 8A.easily B.apart C.normally D.happily 9A.already B.just C.never D.always 10A.continued B.afforded C.managed D.liked 11A.rich B.young C.close D.together 12A.news B.job C.chance D.skill 13A.shame B.mistake C.fault D.problem 14A.far B.distance C.away D.farther 15A.clever B.old C.strong D.beautiful 16A.long B.simple C.wonderful D.busy 17A.patiently B.alone C.sadly D.calmly 18A.plan B.promise C.time D.place 19A.dependon B.thinkof C.careabout D.focuson 20A.treasure B.happiness C.luck D.feeling
Haveyoueverbeeninasituationwherefirstaidwasrequired?Didyouknowwhattodo?Didyoufeeladequatelyequippedandconfidentenoughtoperformfirstaidprocedures?AttheSOSCentertrainedprofessionsprovidesomeone﹣ononeandgroupcoursesinfirstaid.1. FirstAidForInfants婴儿 Thiscourseisdesignedforfirst﹣timeparentswhodonothaveabasicknowledgeoffirstaidforinfantsandbabies2orifyouwanttoavoidmorelifethreateningproblemsandillnessesyouwillgetthemfromthesetopics. FirstAidforChildren Everyparentknowsthefearofreleasingtheirsmallchildoutintotheworldawayfromtheirwatchfuleye.3.Thiscourseteachesparentshowtodeterminewhenaninjuryrequiresstitches缝针howtotreatbasiccutsaswellashowtotreatsunburnsandotherwounds. 4Ourmostpopularcourseoffersallkindsofapproachestoapplyingfirstaid.Inthistwo﹣daycourseyou'lllearnsomebasicskillssuchashowtorespondwhenachildoradultchokeswhattodoifsomeonehasaheartattackorstrokehowtoreacttosnakebitesandspiderbitesandmore.Thiscourseishighlyrecommendedforlearnersofallages. 5InadditionweareplanningtoopenspecialcoursesincommunitycentersaroundBeijing.FormoreinformationonSOSandourcourseselectionortoregisterforacoursepleasevisitwww.firstthigsfirst.com. A.BasicTrainingCourseinFirstAid B.VariousFirst﹣AidCoursesforBabies C.Whenyouwanttoeaseyourbaby'sdiscomforts D.Ifyouwanttoavoidtheriskofyourparents'injuries E.Classesareofferedonaregularbasisatourmainoffice F.Weofferavarietyofcoursesdesignedtomeetparticularneeds G.Aschildrengrowmoreadventuroustheriskofinjuryincreasesaswell
Howdoyoudealwithplasticbagsfromthesupermarket?Throwthemawayorreusethem?Howabouteatingthem? IndiancompanyEnviGreenhasmadeabagwithnaturalingredients成分.Itlooksandfeelsjustlikeplasticbutcanbebrokendowneasily.Thebagsbringnoharmtotheenvironment.Bothhumansandanimalscansafelyeatthem. EnviGreenfounderAshwathHedgespentfouryearsdoingexperimentswithacombinationof12naturalingredients.Theyincludepotatocornvegetableoilandbanana.Hemadetheingredientsintoliquidandusedtheliquidtomakethebag.AlthoughtheEnviGreenbagisabout35percentmoreexpensivethanacommonplasticbagithasmanyadvantages.AccordingtotheWallStreetJournalittakes1000yearsforcommonplasticbagstobreakdown.ButanEnviGreenbagcannaturallybreakdowninlessthan180days.Italsobreaksdowninlessthanadayinwaterandinabout15secondsinboilingwater.HedgewashappytoshowitinhisinterviewwithTheBetterIndia.IntheinterviewheputanEnviGreenbaginwaterandateitwithasmile. AccordingtoIndia'sMinisterofStateforAtmosphereForestandWeatherChangethecountryproducesmorethan15000tonsofplasticwasteeveryday.Butonly9000tonsareprocessed.InChina3billionplasticbagsareusedeveryday.MaybetheEnviGreenhagcouldbeasolutiontotheworldproblemofplasticpollution. 1WhyistheEnviGreenbageatable? A.Becauseitlookslikeplastic. B.Becauseitcanbebrokendowneasily. C.Becauseitconsistsofnaturalingredients. D.Becauseitdoesnoharmtotheenvironment. 2Ifacommonplasticbagcosts¥0.5what'sthepriceofanEnviGreenbag? A.¥0.85. B.¥0.675. C.¥0.65. D.¥0.475. 3WhichsentencecandescribeAshwathHedge'sexperiment? A.Ittookhimlessthanfouryearstosucceed. B.Hemadeaspecialliquidtoformthematerial. C.Hecombined4kindsoffoodtocreatetheEnviGreenbag. D.TheEnviGreenbagcannaturallybreakdownin15seconds. 4Whatcanweinferfromthelastparagraph? A.Plasticpollutioncanbecontrolledwithcombinedefforts. B.IndiahasbenefitedalotfromadoptingtheEnviGreenbag. C.Chinesegovernmenthaspaidattentiontoplasticpollution. D.Plasticpollutionisasevereprobleminsomedevelopingcountries.
假设你是李华受学校委托邀请本校国际班的学生一起参加纪念中国改革开放40周年展览活动请根据题示写一封电子邮件发到校园网告知他们活动内容要点如下: 1.时间及地点本周末学校图书馆; 2.展览内容照片实物高科技成果等; 3.学生交流. 注意:100词左右;可适当增加细节以使行文连贯流畅. 参考词汇:the40thanniversaryofreformandopening﹣up改革开放四十周年
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库