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在斜面上将一个质量为5kg的物体匀速拉到高处，如图所示，沿斜面向上的拉力为40N，斜面长2m、高1m．把重物直接提升h所做的功作有用功．g取10N/kg，下列说法正确的是（ ）
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如图所示在倾角为37°的固定斜面上静置一个质量为5kg的物体物体与斜面间的动摩擦因数为0.８求1物体
如图所示斜面体B置于水面上其倾角为37°质量为m=5kg的物体A置于斜面上原来系统静止现用大小为72
如图所示质量为m1＝5kg的物体置于一粗糙的斜面上用一平行于斜面的大小为30N.的力F.推物体物体沿
将质量为m=5kg的木块放在倾角为θ=37°的斜面上木块可沿斜面匀速下滑现用一沿斜面的力F.=100
如图所示质量为m的物体放在一固定斜面上当斜面倾角为30°时恰能沿斜面匀速下滑.对物体施加一个水平向右
在斜面上将一个质量为5kg的物体匀速拉到高处如图所示沿斜面向上的拉力为40N斜面长2m高1m．把重
物体只受重力．拉力和摩擦力三个力的作用
做的有用功是40J
此斜面的机械效率为62.5%
物体受到的摩擦力大小为10N
如图所示质量m＝10kg的物体在大小为100N方向沿斜面向上的拉力F.作用下恰能沿斜面匀速向上运动已
如图所示在倾斜角α=37°的斜面上有一质量为5kg的物体沿斜面滑下物体与斜面的动摩擦因素μ=0.2求
如图所示沿斜面把质量为12kg的一个物体匀速拉到最高处沿斜面向上的拉力是F＝100N斜面长2m高1
如图所示沿斜面把质量为12kg的一个物体匀速拉到最高处沿斜面向上的拉力是F＝100N斜面长2m高1
如图所示在倾斜角α=37°的斜面上有一质量为5kg的物体沿斜面滑下物体与斜面的动摩擦因素μ=0.2求
如图所示在倾角为37°的固定斜面上放置一个质量为5kg的物体物体与斜面间的动摩擦因数为0.8已知si
如图所示质量为m=5kg的物体置于一上表面光滑但底面并不光滑的斜面上用一平行于斜面向上的力F.=30
2.00分在斜面上将一个质量为5kg的物体匀速拉到高处如图所示沿斜面向上的拉力为40N斜面长2m高
物体沿斜面匀速上升时，拉力大小等于摩擦力
物体沿斜面匀速上升时，拉力大小不等于摩擦力
做的有用功是5J
此斜面的机械效率为62.5%
如图所示在倾角为37°的固定斜面上静置一个质量为5kg的物体物体与斜面间的动摩擦因数为0.8求sin
在斜面上将一个质量为5kg的物体匀速拉到高处如图所示沿斜面向上的拉力为40N斜面长2m高1m．把重
物体只受重力．拉力和摩擦力三个力的作用
做的有用功是100J
此斜面的机械效率为62.5%
物体受到的摩擦力大小为10N
在斜面上将一个质量为5kg的物体匀速拉到高处如图所示沿斜面向上的拉力为40N斜面长2m高1m．g取1
物体只受重力．拉力和摩擦力三个力的作用
做的有用功是80J
此斜面的机械效率为62.5%
物体受到的摩擦力大小为10N
在斜面上将一个质量为0.4kg的物体从底端沿斜面匀速拉到顶端如图所示所用时间为4s斜面长s=1m高h
如图5所示火车箱中有一个倾角为30°的斜面.当火车以10m/s2的加速度沿水平方向向左运动时斜面上一
如图所示沿斜面把质量为12kg的一个物体匀速拉到最高处沿斜面向上的拉力是F=100N斜面长2m高1
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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
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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
假如你是李华想邀请外教John一起观看5月14日再厦门嘉庚剧院TanKahKeetheatre上演的中国民族歌剧经典选段ChineseOperaExcerpts音乐会.请给他写封邮件内容包括 1.音乐会时间地点 2.音乐会内容 注意1.词数100左右2.可以适当增加细节以使行文连贯.
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
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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.
BrightSidedidsomeresearchonmanyplacesthroughouttheworldwhereyoucanbuyahousefor1dollarorforfree! RoubaixFrance IfyoulikeFranceRoubaixlocatedinthenorthofFranceisjustforyou．Thelocalauthoritieswantittobepopulatedandattractive．Youcanbuyasmallhouseintheindustrialdistrictforjust﹩1．Thebuyerissupposedtoliveinthishousefor3years． Buffalo．USA Buffaloofferswhoeverqualifiestobuyahousefor﹩1．Allyouneedistobealawfulcitizenofthecityandinvestamountofmoneyintoitsdecoration．Doingthistheauthoritiesarehopingtomakethecitybeautifulagainwithoutspendingmoney． LiverpoolGreatBritain InLiverpoolmostofhouseswereabandonedbytheworkingclassduringtheyearsofunemployment．Thegovernmentistryingtosellthehousesforjust﹩1．Ifyouwanttobuysuchahouseithastobeyourfirstdealonbuyingproperty不动产． CandelaItaly IfyoustillhaveanydoubtsaboutspendingSIonahouseyoushouldknowthegovernmentwillpayyousomemoneyifyoumovetoCandela．Inordertobepaidyouneedtobecomeapermanentcitizenandhaveanincomeof﹩7500peryear．Ifmovingaloneyouwillget﹩800andifyouaregoingwithyourfamilythepaycanbefourtimesasmuchasonlyoneperson． FormoreinformationofothercitiespleaseClickHere． 1WhydotheauthoritiesofBuffaloprovideahouseforpeoplewith﹩1B A．Toimprovethelivesofpoorpeople． B．Tomakethecityattractiveatnocost． C．Tosolvetheproblemsofemployment． D．Toattractpeopletotheindustrialareas． 2Whatisrequiredtobuyahousefor1dollarinLiverpoolC A．Youneedtobeanunemployedcitizen． B．Youshouldliveinthehousefor3years． C．Youmustmakethefirsthousepurchase． D．Youhavetorepairanddecoratethehouse． 3HowmuchmoneycanyougetifmovingtoCandelawithawholefamilyA A．﹩3200 B．﹩1 C．﹩800 D．﹩7500 4WheredoesthispassagecomefromC A．atextbook． B．amagazine． C．theInternet． D．anannouncement．
Runningahouseholdwithapackfullofkidscanresultinsomebaddaysevenonmydayofffromwork. Itoldmytwo﹣year﹣oldsonAndrewto1tothefamilyroomandturnofftheTVandhewasnowupstairs2thathehelpfixsupper. IknewAndrewcouldfollowsimple3.SoIsaidveryclearlyandslowlyHoneygodownstairsand4thebuttonontheTVandturnofftheTVIrepeatedthreetimes5thewordspushoffandTV.Iknewhe'd6itout.Heknewwheretheoffbuttonwas.7hetookpleasureinpushingitineverynightduringtheclimax高潮ofeverymoviewewatched. Sodownstairshewenttodoa8deedforMommy.Iwentbacktothesinktowashthecarrots.Thenithappened.The9crasheverheardinourhouse.Iwasso10thatIcouldn'tmove.IkeptwaitingforAndrewtoscream.Butthe11wasmorefrighteningthanthecrash. I12downthestepshalfexpectingtofindAndrewlying13.Istoppedcold. HewasstandingtherebehindtheTVstandsmilingAren'tyou14ofmeMom?AndrewpushedofftheTV! TherewastheTVfacedownonthe15.Twooftheroundhandleswerebrokenoff.Thescreenwasdestroyed.TheplantsI'd16thatmorningthatusedtositontopofthesetwerefallingontothecarpet.Brokenplantsandpotswere17allovertheroom. Ipulledhimintomy18andsatonthesofarockinghim19.IthankedGodthathewasn't20. 1A.stayaway B.cheerup C.godown D.comeout 2A.suggesting B.insisting C.ordering D.imagining 3A.directions B.rules C.introduction D.advice 4A.find B.press C.touch D.push 5A.learning B.remembering C.emphasizing D.ignoring 6A.get B.figure C.put D.keep 7A.Afterall B.Atlast C.Intotal D.Ofcourse 8A.hard B.secret C.nice D.bad 9A.longest B.worst C.latest D.loudest 10A.annoyed B.worried C.confused D.excited 11A.silence B.scream C.surprise D.safety 12A.pulled B.climbed C.raced D.jumped 13A.lifeless B.careless C.speechless D.aimless 14A.aware B.afraid C.tired D.proud 15A.wall B.floor C.roof D.stand 16A.delivered B.bought C.grown D.watered 17A.spoiled B.laid C.spread D.taken 18A.legs B.eyes C.hands D.arms 19A.hereandthere B.backandforth C.blackandblue D.inandout 20A.hurt B.lost C.hidden D.beaten
ChinahasbeenselectedtohosttheWorldSkillsCompetitioninShanghaiin2021aneventithopestousforbuildingastrongerteamofskilledworkersnationwideandtoimproveinternational1exchangeintechnicalskills.Hostingtheeventwillhelpguidethewholesociety2respectthespiritofskilledworkmanship.Itwillalsohelpcreate3socialatmosphereofrespectinglaborandadmiringskill.Chinahas165millionskilledworkersincluding47.9millionwhoareclassedashighlyskilled.Theywerefirstclassifiedbythegovernmentin2003.They4includeasoneofthemajorSate﹣leveltalentgroupsalongwiththeoreticalscientistsin20155markasignificantriseintheirsocialstatus. China's6earlymodernskillstrainingcandatebacktotheQingDynasty.Itwasin18667theFoochowShipbuildingInstitutioninFujianprovincewasestablished.In1978theadoptionofthereformadopening﹣uppolicyhighlightedashortageof8talenttechnicians.Asaresultthenumberofstudentsattechnicalinstitutesrosesharply.Morerecentlytechnicaleducation9receivegreatersupportfromthecentralgovernmenttohelpshapethenation'sproducingpower.Everyyearmorethan100millionpeoplehaveaccess10technicaleducationandtraining.
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.
BritishchemistDavidEvanshasbecomeanovernightcelebrityonChinesesocialmedia.Hischemistryexperimentshaveattractedover2millionfollowersinjustafewmonths.EvansisachemistryprofessorattheBeijingUniversityofChemicalTechnology.The60﹣year﹣oldalwayswearsawhitelabcoatapairofsafetygoggles护目镜andsmilesoften.SomewebuserssayhelooksjustlikethegrandpaofKFC. Evanshaspostedvideosofvariousexperiments.Hismostpopularexperimentshaveattractedmillionsofhitsonvideo﹣sharingapps.Excitedchildren'scheersandshoutscanbeheardinhisvideos.Ihopemyexperimentscanarousepeople'sinterestinsciencehesays. EvanshasbeeninterestedinChinasincechildhood.Intheearly1970sbeforethereformandopening﹣uphevieweditasacountryfullofmysteries.HefirstvisitedtheChinesemainlandin1987toattendachemistryconferenceinNanjingJiangsuProvince.HequithisjobintheUnitedKingdomandmovedtoBeijingin1996.Manyofhisfriendsthoughthewascrazy.ButEvanssaystheyjustsawChina'schallengesbutnotitspotential. Since2011EvanshasturnedtotheInternettopopularizescience.Helearnedshort﹣videoappsarealsopopularinsmallcitiesandruralareas.Andherealizedthisenableshimtoreachmorestudentswholackopportunitiestoperformfunexperiments.Butevenaone﹣minutevideorequiresaconsiderableamountofwork.Stillhethinksit'sworthittofulfillhisresponsibilitytopopularizescience. Hisexperimentsalwaysfillschools'lecturehallswithlaughter.SomeviewerscallhimaHarryPotter﹣likemagicianbuthedisagrees.Amagiciannevertellsthesecretsbehindhistricksbutascientistalwaysgivesanexplanation.Heseeshimselfasateacher.Heperformsexperimentstospreadknowledgeinspirethinkingremovemisunderstandingsandshowthatsciencecancreatechange.EvanssayshelooksforwardtomorechemicalreactionswithChina. 1WhoisDavidEvansaccordingtothepassage? A.AmanagerofKFC. B.Afilmcelebrity. C.Achemistryteacher. D.ABritishmagician. 2Whatcanwelearnfromthethirdparagraph? A.EvansconsideredUKtobeacountryfullofmysteries. B.EvansfirstvisitedChinesemainlandinthe1970s. C.EvanswasinnomoodtomovetoBeijing. D.EvansattendedachemistryconferenceinChinain1987. 3WhydidEvansbegintopostvideosofexperimentsontheInternet? A.Topopularizescience. B.Torisetofame. C.Toapplyshort﹣videoapps. D.Tomakeafortune. 4Whatcanweinferfromthepassage? A.Evansknowsexactlyhowamagicworks. B.EvanswillcontinuetopostvideosofexperimentsinChina. C.Evans'studentsliketointerrupthisexperimentswithlaughter. D.Evans'friendsadmiredhisdecisiontomovetoChina.
CourseNo.140612Lectures30Minutes/Lecture InTheSecretsofMentalMathaward﹣winningProfessorArthurT.Benjaminteachesyouthebasicknowledgeofmentalmathematics.Thispowerfulabilitytoperformmentalcalculationswillgiveyouanedgeinbusinessatschoolatworkoranywhereelsethatyoumeetwithmath. CourseNo.717512Lectures30Minutes/Lecture InMuseumMasterpiecesTheLouvreexpertartcriticandhistorianProfessorRichardBrertelltakesyouonanunforgettablejourneythroughoneoftheworld'sgreatestmuseums.This12﹣lectureseriesexploressomeofthemostbeautifulandrenownedexamplesfromthemuseum'sremarkablecollectionofmasterworks. CourseNo.15812Lectures30Minutes/Lecture InMyFavoriteUniverseworld﹣famousphysicistanddirectoroftheHaydenPknetariumNeildcGrasscTysontakesyouonaspiritedandintellectuallyinterestingjourneythroughtheuniverseandallitshistoryfrombeforethebigbangtothemostlikelywaysinwhichtheentireuniversemightend. CourseNo.629912Lectures30Minutes/Lecture InTheHistoryoftheBibleTheMakingoftheNewTestamentCanonNewYorkTimesbest﹣sellingauthorandprofessorBartD.EhrmanrevealsthesecrethistorybehindthemakingoftheNewTestamentincludinghowandwheneachbookwaswrittenandwhyitwaschosentobeincluded. SPECIALINTRODUCTORYOFFER! Orderanyoneofthese BEST﹣SELLINGCOURSESforonly ﹩199.95﹩9.95onDVD ﹩134.95﹩6.95onCD +﹩5ShippingandHandling ORDERTODAY!SaleEndsFriday! 1Whocantellyousomethingaboutthespace? A.BartD.Ehrman. B.NeildcGrasscTyson. C.ArthurT.Benjamin. D.RichardBrertell. 2HowmuchisCourseNo.158onDVDdeliveredtoyourhouse? A.﹩6.95. B.﹩9.95. C.﹩11.95. D.﹩14.95. 3Whatisthepassagemainlyabout? A.Collegecoursesstudiedinhome. B.Collegecourseslearnedonline. C.Someworld﹣famouslectures. D.Fourinterestingbooksindiscount.
Youcan'tseeyoursleepingpetsbrainwavesbutitsbehaviorcantellyouwhenyourcatmightbedreaming．Ifyouwatchcloselyyou'llseethatasshefallsasleepherbreathingbecomesslowandregularwithherbodystill．Shehasenteredthefirststageofsleepcalledslow﹣wavesleep．Afterabout15minutesyou'llnoticeachangeinherbreathing．Hereyesmoveunderherclosedlidsherpawstwitch抽动andsheflicks尤指用手指或手快速地轻抚anear．Shehasentereddreaming．Althoughshetwitchesandmakeslittlegrunting嘟嘟noisesmessagesfromherbraintothelargemusclesinherlegsareblockedsoshecan'trunabout．Sheisinastateofsleepparalysis麻痹． MichelJouvetaFrenchscientistinterruptedtheirsleepparalysis．EventhoughtheywerecompletelyasleepthedreamingcatsbegantorunforballsthatJouvetcouldn'tseeandarched弓起theirbacksatunseenenemies．Hefigureshewaswatchingthemactouttheirdreams!Obviouslythedreamingcatsseemedtobepractisingimportantcatskillsfollowingpouncing猛扑andfighting． InanotherstudyMattWilsonrecordedratsbrainwaveswhiletheylearnedmazes迷宫．Onedayheleftthebrain﹣wave﹣recordingmachineonwhiletheratsfellasleep．ThepatternofbrainwavesinthesleepingratsmatchedthepatternfromthemazesocloselythatWilsoncouldfigureoutexactlywhichpartofthemazeeachratwasdreamingabout! Manyresearchersnowthinkthatinbothpeopleandanimalsonepurposeofdreamsistopractiseimportantskillsandfigureoutrecentcaning．Thismayexplainwhysomanypeopledreamaboutfightingandescapingskillsthatwereprobablyimportanttoourancestorsandwhydreamingaffectsourabilitytolearn． DoallanimalsdreamFromlookingatthebrainwavesofsleepinganimals．Howoftenanimalsdreamseemstobetiedtobodysize．Catsdreamaboutevery15minutesmiceevery9minutesandelephantsevery2hours．Andthoughcowsandhorsesusuallysleepstandinguptheyonlydreamwhenlyingdown． 1WhatdoesMichelJouvetfindinhisstudyB A．Thedreamingcatsareinastateofbodyparalysis． B．Thedreamingcatsoftenpractisetheirimportantskills． C．Theeyesofdreamingcatsmovedwhilebodiesarestill． D．Themusclesofthedreamingcatsareblockedtomove． 2WhatcanyouknowaboutdreamingfromthepassageC A．Dreamingalotcanhelphumanslearnmore． B．Learningmazesisthebasicskillforcatstolearn． C．Ratsoftendreamstomakecertaintheirrecentlearning D．Fightingandescapingarenotimportantskillsforancestors． 3WhichanimalmaydreammostfrequentlyA A．Rats． B．Dogs． C．Cows． D．Elephants 4HowdoestheauthordevelophispassageD A．Bymakingcomparisons． B．Byusingfigures C．Bytellingstories D．Byshowingfacts
Manyofthemoststrikingbeastsontheplanetcomeinonlytwocolorsblackandwhite.Thesehigh﹣contrastmarkingsrepresentsomeofthenature'smostdiverseevolutionarychoices.Forsomeanimalsblack﹣and﹣whitecoloringisawaytowaroffnaturalenemies.Forotherstokeepinsectsaway.Forstillothersitcreatesaclevercover.Spendsometimeexploringwhatsciencehasdiscoveredabouttheseanimals'appearancesandyouwillseethatbasicblackandwhiteisn'tsobasicafterall. Skunk Dependingonthespeciesblackskunksmaywearwhitespotsthatactasacoverorwhitestripes条纹thatsignalenemiestowatchoutfortheirsmellyspray. GiantPanda Resentinsightsintopandacoloringhavecomefromstudyingeachbodypartseparately.Blackearsindicatefiercenessanddistincteyepatchesaidinindividualrecognition.Thepandainwhitebodyhidesitagainstsnowwhiteitsdarklimbs四肢keepitfrombeingspottedinforestsacompromisedevelopedfromitspoorbamboodietBamboodoesn'tletpandasbuildupenoughfattohibernate冬眠forcingthemtospendwintersinthesnow. Badger EvenwhenabadgerisinitscaveitsfacialstripescanbeseenZoologistssaythewarningcolorationhelpsthesmallanimalpreventnaturalenemies. Blackbuckmale Inbrightsunthebuck'swhitestomachreducestheeffectoftheshadowcastbyhisbackallowinghimtoappearonecolorandtwodimensional﹣﹣﹣especiallyhidingfromnaturalenemiesinhisownshadown. 1Whichanimalscanusetheircolortowarnofnaturalenemies? A.SkunkandBadger B.GiantpandaandZebra C.BadgerandBlackbuck D.ZebraandBlackbuck 2Whitebodyanddarklimbshelpthegiantpandato. A.showfierceness B.storefat C.recognizeindividuals D.takecover 3Whatcanbeasuitabletitleforthetext? A.Whichanimalshaveblack﹣and﹣whitecolor? B.Howsomeanimalsprotectthemselvesfromharm? C.Whysomanyanimalswearblack﹣and﹣whitecoats? D.Whatsciencehasdiscoveredaboutdifferentcolors?
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. Lastweekwewatchedanexcitedbasketballmatchinourschool.ItisbetweenGrade1andGrade2students.Duringamatchtheplayersfromallteamsplayedveryhard.Grade2wasastrongerteam.HoweverforoursurpriseGrade1wonatlast.Theplayerjumpedandhuggedtocelebratetheirsuccess.JustthentheplayersfromtheotherteamthatapproachedandsaidCongratulations!tothem.Theyworesmilesonfacesandyoucouldn'ttellfromtheirexpressionsthattheyhadlostthematch.Weweretouchingbythesceneandfeltwhatimportantarolesportplaysindailylife.
Itisestimatedthatmorethanhalftheworld'spopulationisbilingual双语的andinanincreasinglyglobalisedworldthereareobviousbenefitsofspeakingmorethanonelanguage.Howeverformanyyearsparentswereadvisednottoteachtheirchildrentospeakmorethanonelanguagefrombirth.Learningtwoormorelanguagessimultaneously同时wasbelievedtocauseconfusionandslowdownacademicdevelopment.Whileitiscertainlytruethatchildrenwhoarelearningtospeakmorethanonelanguageastheirmothertonguewilloftenmixthelanguagesuporspeakalittlelaterthesearetemporaryproblemsandthereisnoreasontoavoidteachingachildmorethanonelanguage. Infactthereareplentyofreasonstoencourageyourchildtobecomebilingualfrombirth.Aswellastheobviousbenefitsofbeingabletocommunicatewithmorepeopleandthepossibilityofearningmoremoneychildrenwhospeakmorethanonelanguagehavebeenshowntoscoremorehighlyinachievementtestsatschool.Thisistrueformathematicsaswellastestsofverbal言语的skills. AndinlaterlifeithasbeenfoundthatbilingualsonaveragewilltendtodevelopAlzheimer'sdiseasefiveyearslaterthanmonolingualspeakers.Speakingthreeormorelanguagesoffersevenmoreprotection.Itseemsthattheincreasednumberofconnectionswithinthebrainallowsbilingualstocopebetterwithbraindamage. Butisittoolateifyouhaven'talreadylearnedasecondlanguageinchildhood?Itusedtobethoughtthattheadultbrainwasveryfixedbutrecentresearchhasshownthatwecontinuetodevelopnewconnectionsinthebrainthroughoutourlivesmeaningthatit'sperfectlypossibletolearnanotherlanguagetoahighstandard.Olderlearnersarelesslikelytohavenative﹣likepronunciationbuttheyarebetteratlearningvocabularyastheyareabletousefarmoreskillsandstrategiesthanchildren.Andlearningalanguageislikeusingamuscle﹣themoreyouuseitthestrongeritgetsmeaningthatyouwillfindyourthirdlanguageeasierthanyoursecondandsoon. 1Whyshouldn'tparentsbediscouragedfromteachingtheirchildrentobeabilingual? A.Children'sconfusionovertwolanguageswillnotlastlong. B.Childrenwillnotmistakeonelanguagefortheother. C.Parentsshouldbegintoteachasecondlanguageearly. D.Parents'guidancewillhelpchildrentelltwolanguagesapart. 2WhichofthefollowingisNOTapossiblebenefitofbeingabilingual? A.AbilingualislesslikelytodevelopAlzheimer'sdisease. B.Abilingualchildmaydowellinmathematicsatschool. C.Abilingualwillprobablymakemoremoney. D.Abilingualchildownsrelativelygoodlanguageability. 3Comparedwithchildrenadultlanguagelearners. A.aresloweratlearningasecondlanguage. B.aremoreskilledatbuildingvocabulary. C.aremorelikelytoacquireanativeaccent. D.aresloweratmakinglogicconnections. 4Whatcanbelearnedfromthepassage? A.Abilingualchildwillspeakboththelanguagesbadlylaterinhislife. B.Learningasecondlanguagecertainlycontributestoyourbodyfitness. C.Connectionswithinadults'brainwillpermanentlystopdeveloping. D.Witheachlanguagelearnedthelearningprocesswillbecomeeasier.
Idon'tbelieveArtificialIntelligenceAIcouldreplacemyteachingcareer.IhavealwaysbeeninterestedinhumanconnectionandthewaysinwhichIcanusetheseconnectionstoinspirechangeandmakeadifference.1thereareotherwayswhereAIcouldmakeamoreefficientandeffectivedifferencethanIcouldonmyown. Myteachingexperiencesoverthepastseveralyearshavebeencreativeandinspiring.Ibelievethatthejobofeducatorsextendsbeyondsimplyteachingstudentsasetcurriculum.2theymustconstantlyreflectonwaystobettertheirteachingandtheymustinspiretheirstudentstobethebestversionsofthemselves.AndnowwiththehelpAItheycouldachievethesegoalsmucheasier. 3.FirstAIcanbeusedtopromotefundamentalskillssuchasmathematicaleducationandvocabularylessons.AdditionallyIseeAIbeingusedforsuchnecessarytasksasansweringquestionsandgradingassignments.ThusIcouldfocusmyattentiontoestablishinghumanconnectionindividualizinglessonplansandinspiringmystudents. 4.IbelieveAIcouldprovideastrongbasisforeducationalequalityaroundtheworld.AccordingtoToddLeopoldcloseto800millionpeopleworldwidearefunctionallyilliterate不识字的.Duetoitsabilitytoefficientlypassknowledgeacrosslargegroupsofpeoplefewerteachersmaybeneededinsomeschools5. A.Sincestudentswillalwaysneedahumanteacher B.ThebenefitAIbringsisfarbeyondmyownclassroom C.IthinkAIisapowerfulassistanttomyfutureclassroom D.TheneedforstudentstolearnhowtouseAIwillalsogrow E.AlthoughhumanconnectionmayneverbeabletobefullyreplacedbyAI F.Thiscouldbeanopportunityforstudentseverywheretoreceiveequaleducation G.Theymustobserveandgettoknowtheirstudentsinordertoindividualizeeducationalplans
校学生会计划举办汉语桥活动你受学生会委托写一则通知邀请你校美国留学生参加此活动．内容包括 1．介绍活动的意义 2．邀请美国留学生参加动员会thepeprally 3．动员会的时间地点． 注意 1．词数100左右 2．可以适当增加细节以使行文连贯 3．开头和结语已为你写好． Notice DearoverseasstudentsfromAmerica TheStudents'Union
Risingthroughstagestorealizeourselves Manymodernpeoplehavetheproblemthattheydon'tknowwhotheyareandwhattheirpurposeis1.Oncehighschoolseniorsgraduatetheyseemtolosetheiridentity.Theyoncestudiedhard.Butaftertheystopworkingtheybegintolosetheirway. InthetheoryoftheHierarchyofNeeds需求理论AbrahamAsloputforwardasimilarsituationwhichconsistsofthefivelevelsofaperson'sneed.Thefifthandfinallevelisself﹣realizationwhichiswhereourfinalachievementlies2. Ithinkself﹣realizationhasthreemajoraspects.Thefirststageisacceptancethesecondstageisdiscoveryandthelaststageisperseverance. Acceptanceisthefirststage.Weshouldberemindedthatweareallbornuniquesoweallhaveourownstrengthsandweaknesses.Onlywhenweunderstandthesecanwepursuethemorchangethem3. Oncewe'veacceptedourselveswecandiscoverwhatweareinterestedinandwhatwewanttobe4butindeedweshouldliveforourselves.SobeforewestartworkingtowardsapurposeweshouldaskourselvesIsthiswhatwetrulydesire?andIsthisgoingtochangethesituationwe'rein? Thelaststageisperseverance5.Thosewhocanself﹣realizearepeoplewhofocusonthethingstheywanttochange. Throughthethreestageswecouldgainrecognitionofourselves.Andbythispointwhateverthethingstheywanttoourliveswerelikewewouldbeabletostandtallconfidentofourselves. A.It'snothingtoamanofperseverance. B.Onlybyacceptanceofthepastcanwechangeit C.Thisisespeciallycommonamongcollegestudents D.Manypeopletendtogoalongwithsocialexpectation E.Beingobjectiveandyettolerantisthekeytoacceptance F.Itistheprocessofknowingourselvesandfindingapurpose G.Exploringourpotentialisn'tgoingtobedoneinashorttime
Wesendwordspicturesorvideos1toourfriendsontheInterneteveryday．But2itseemsthatwecanalsoevensendthemaglassoflemonadenow． Thisis3howtheunimaginabletechnologyworks．Firstacolorsensor传感器andaPHsensor4areplacedplaceinarealglassoflemonade．Thenacontrolmodulesendsinformationaboutthecolorandtasteofthelemonadetoaspecialglass5filledfillwithwateratanother6locationlocate．By7usinguseelectronicstimulators刺激物thespecialglassrecreatesthetasteoftheoriginalwhentherecipient接受者drinksthewater．Researchersfoundthattherearenosignificant8differencedifferentbetweenarealglassoflemonadeandavirtual虚拟的one． Ifthetechnologyisimprovedwemayevensoonbeabletoshareour9favoritefavordisheswithourfriendsonlineinsteadofinsimply10aphoto．
Nowadaysalongwiththeboomingofcomputersciencecomputersarewidelyusedhereandthere．Peopleevencanfindcomputersinmostclassrooms．Whileteachersremainmoreorlessthesamecomputersaredoublinginspeedandcapabilityeveryfouryears．1EAsfarasIamconcernedteachersstillplayamajorroleandarestillofgreatimportance． 2GHoweveradvancedtheymaybecomputersarenothingmorethanhumaninventionsprogrammedtoperformcertaintasks． Theyareunabletodealwithstudentswithdifferentbackground．Needlesstosayaclassroomisaplacewhereindividualattentionandcreativitymattermost．Thereforecomputersarenobetterthanothertoolsusedbyteachersandcouldn'tpossiblymaketherolesplayedbythemweaker． Intermsofaccuracyandtheamountofinformationcomputersoutshinehumans．3DIndeedagoodteacherorganizesandinspiresthestudents． Besidestheinteractionbetweenstudentsandteachersisvitalforthelearning．Accordingtomosteducationauthoritiesreallearningoccursduringthediscussionandsharingofideaswithone'steacherandclassmates．Moreoverateacheristheretomonitoreveryslightchangeinstudents'attitudetorespondtoandencouragethemwhenevertheyshowsignsoffrustrationandimpatience．4B Despitetheincreasingpresenceofcomputersinsideclassroomsteachersarejustasessentialifnotmoresoasinstructorswereinthepast．5F A．It'stimethatteachersshoulddevelopthemselves． B．Withoutthiskindofinteractioneducationisunimaginable． C．Advancedascomputersmaybesometeachersarelessimpatient． D．Buttomakeagoodteachermeansfarmorethanbeinganencyclopedia百科全书． E．Peoplecan'thelpwonderingwhetherteachersareasimportantastheyoncewere． F．Somedrawbacksmakeitimpossibleforcomputerstoreplaceteachersinclassrooms． G．Itiswellknownthatcomputersarebetteratrepetitiveworkbutincapableofcreativethinking．
Encouragingchildrentousegesturesastheythinkcanhelpthemcomeupwithmorecreativeideasaccordingtonewresearch. OurfindingsshowthatchildrennaturallygesturewhentheythinkofunusualwaystouseeverydayitemssayspsychologicalscientistElizabethKirk.Whenwethenaskedchildrentomovetheirhandstheywereabletocomeupwithevenmorecreativeideas. Gesturingmayallowustoexploretheproperties特性oftheitems﹣forexamplehowtheitemcouldbehelditssizeitsshapeetc.﹣anddoingsocanhelpuscomeupwithideasforcreativeusesKirkexplains. Intheirfirststudy?theresearcherscomparedthecreativityofchildrenwhospontancously自发地gesturedwiththosewhoeitherdidnotorcouldnotgesture. Atotalof78childrenaged9﹣11sawaseriesofimagesofordinaryitemssuchasanewspaperatincanandakettle.Theresearchersaskedthechildrentolookateachimageandlistasmanyusesastheycouldthinkof.Agroupofparticipantscompletedthetasktwice﹣ononeversionofthetasktheyworemittens连指手套thatlimitedtheirabilitytogesture. Restrictingchildren'sabilitytogesturedidnotaffecttheirabilitytocomeupwithcreativeusesfortheobjectsChildrenwhowerefreetogestureproducedaboutthesamenumberofideasasthosewhoworethemittensandcouldnotgesture. Inasecondexperiment54childrencompletedthesamealternative﹣usestask.Insomecaseschildrengesturednormallyinothercasestheresearchersencouragedthechildrentouseyourhandstoshowmehowyoucouldusetheobjectindifferentways. TheencouragementworkedChildrenwhowerespecificallyencouragedtogestureproducedagreaternumberofcreativeusesfortheobjectsthandidthechildrenwhowerenotgivenanyspecialinstruction. OurfindingsaddtothegrowingbodyofevidenceshowingthesignificantroleofgestureinthinkingandhaveapplicationstotheclassroomKirkconcludedintheirpaper. 1Whatdidtheresearchersintendtofindoutinthefirstexperiment? A.Thenumberofcreativeideasthechildrencouldthinkof. B.Howthechildrenwouldexplorethepropertiesoftheitems. C.Whetherencouraginggesturewouldhelptoproducemorenewideas. D.Thedifferencebetweenthinkingwithgesturesandwithoutgestures. 2Whyweremittensusedintheexperiment? A.Torestrictgestures. B.Tolimitcreativethinking. C.Totesttheabilitytogesture D.Toincreasecreativeideas. 3Whendidthechildrenthinkofthemostnewideas? A.Whenwearingmittens. B.Whenencouragedtogesture. C.Whennaturallygesturing. D.Whennotusingtheirhands. 4Whatwouldbethebesttitleforthetext? A.CommunicatewithGestures B.ThinkwithYourHands C.UseEverydayItemsCreatively D.MakeGestureswhenNecessary
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
WearrivedinSpainforthefirsttimeafewweeksago.Idecidedto1acarbecausewehadsoldtheonewehadinEnglandbefore2home.Yesterdaythesalesofficerangustosaythecarwas3.IhadtriedoutamodellikeitbeforebutasIwasnotyet4drivinginthiscitymywifedidnotwantmetocollectit5sowewenttogetherto6it.Wepaidforthecarand7thepapers.Theytoldusthattherewas8petroltotakeustoagaragewherewecouldfillup.The9garagetotheofficewasabout100yardsawayandwegotthere10.ButwhenIturnedintothemainroadIsuddenlysawalotofcarsracing11me.Igotoutof12asfastasIcouldbybackingintothegarage13andthemanbehind14me. It'ssuchaproblemto15todriveontherightsideisn'tit?mywifesaid.YesifonlyIhadhadafewlessonsfor16Ireplied.Youhadbettergo17onthewayhomemywifesaid.You'dbesorryifyouhad18onthefirstdaywouldn'tyou?WhileweweretalkingthemanbehindgotoutofhiscarandsaidingoodEnglishWouldyoumindtellingme19youarethinkingofleaving?20areyougoingtositinyourcarallday? 1A.borrow B.drive C.buy D.choose 2A.leaving B.making C.returning D.getting 3A.right B.ready C.fixed D.sold 4A.sureof B.satisfiedwith C.interestedin D.usedto 5A.onmyown B.rightaway C.inahurry D.ontheway 6A.receive B.bring C.order D.fetch 7A.accepted B.wrote C.signed D.copied 8A.little B.enough C.much D.no 9A.best B.nearest C.quickest D.cleanest 10A.lately B.directly C.safely D.slowly 11A.after B.with C.around D.towards 12A.theirway B.thegarage C.theirsight D.thecar 13A.atlast B.oncemore C.asusual D.aswell 14A.caught B.cheered C.shoutedat D.chattedwith 15A.prepare B.continue C.choose D.remember 16A.discussion B.adventure C.experiment D.practice 17A.carefully B.smoothly C.quickly D.differently 18A.anerror B.aproblem C.anaccident D.aheadache 19A.when B.why C.how D.what 20A.For B.Or C.But D.So
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