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下列物品中，通常情况下属于导体的是（ ）
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下列物品中通常情况下属于导体的是
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下列物品中通常情况下属于导体的是
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下列物品中通常情况下属于导体的是
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下列物品中通常情况下属于导体的是
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下列物品中通常情况下属于导体的是
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除去下列各组物质中的少量杂质所用试剂和方法均正确的是
除去下列各物质中的少量杂质所选用的试剂方法均正确的是
1云南水资源丰富但分布不均．有些村民用地下水作为生活用水人们常用检验地下水是硬水还是软水生活中可用的方法降低水的硬度 2高铁酸钾K2FeO4是一种新型高效的多功能水处理剂．高铁酸钾受热时发生的反应为4K2FeO42R+4K2O+3O2↑则R是填化学式 3请举一例生活中节约用水的具体措施．
8分Therewasdaylight.Glasscouldtellthatmuchwithoutmovingbutotherwisehehadnoideaofthetime.Helaywherehefelldownthedaybefore.Hisangerhadcarriedhimtotheedgeoftheclearing森林的空地buthisfeverstoppedhimthere. ThebearhadhurtGlassfromtheoutsideandnowthefeverhurtfromwithin.ItfelttoGlassasifhehadbeenhollowedout.Hetrembleduncontrollablydreamingofthewarmthofafire.Lookingaroundhesawthatnosmokerosefromtheremainsofthefireinthecampsite.Nofirenowarmth. Hewonderedifhecouldatleastgobacktohisblanketandmadeatentativeefforttomove.Themovementcausedsomethingdeepinhischest.Hefeltacoughcomingonandtensedhisstomachmusclestostopit.Themuscleswerepainfulfromearlierbattlesanddespitehiseffortthecoughbrokeout.Itfeltlikehisinsidewasbeingtornoutthroughhisthroat. Whenthepainofcoughingdecreasedhefocusedagainontheblanket. Ihavetogetwarm.Ittookallhisstrengthtolifthishead.Theblanketlayabouttwentyfeetaway.Herolledfromhissidetostomachmovinghisleftarmoutinfrontofhisbody.Glassbenthisleftlegthenstraightenedittopush.Betweenhisonegoodarmandhisonegoodleghepush﹣draggedhimselfacrosstheclearing.Eachbreathdrewlikeacuttingthroughhisthroatandhefeltagainthetremblinginhiswoundedback.Hestretchedtograbtheblanketwhenitcamewithinreach.HepulleditaroundhisshouldersembracingtheweightywarmthoftheHudsonBaywool.Thehepassedout. ThroughthelongmorningGlass'sbodyfoughtagainsttheinfectionofhiswounds.Heslippedbetweenconsciousnessunconsciousnessandaconfusingstateawareofhissurroundingslikerandompagesofabookscatteredglimpsesofastorywithnocontinuitytobindthem.Whenconscioushewisheddesperatelytosleepagainifonlytogainrespite暂缓fromthepain.Yeteachinterlude中间ofsleepcamewithaterrifyingthoughtthathemightneverwakeagain.Isthiswhatit'sliketodie? 1Fromthepassageweknowthat. A.Glasswasahunterwhousedtohuntbearsintheforest B.EventhoughGlasswaswoundedhekilledthebearatlast C.AfterfightingwithabearGlasswasseriouslywounded D.Glasslayintheclearingforaweekwithoutbeingfound 2WhichofthefollowingisTRUEaccordingtothepassage? A.AlltheotherpeopleweresearchingforGlasswhenhewaslyingintheclearing. B.Glassmanagedtoputtheblanketaroundhisshouldersbeforehepassedaway C.WithonegoodarmandonegoodlegGlasspushed﹣draggedhimselfbackhome D.ThewholemorningGlasswassometimesconsciousandsometimesunconscious 3Paragraph5ofthispassagemainlytellsus. A.howGlasswaswoundedbyabearanddied B.whathappenedtoGlassbeforeherecovered C.whyGlasstriedtogethisblanketback D.howGlassstruggledtokeephimselfwarm 4Wecaninferfromthepassagethat. A.adesireforlifesupportedGlasstostruggleagainsthardships B.lifeintheforestusedtobehardforbothanimalsandman C.HudsonBaywasasmallcitywherebestwoolwasproduced D.Glasswantedtosleepasmuchaspossibletorecoversoon
图示“错误操作”与图下面“可能产生的后果”不一致的是
6分Igrewupinafamilythatatedinnertogethereveryevening.Althoughmyparentsenjoyedwinetheyrarelydrankduringtheweekandwerealwaysinmoderation节制.AsformyselfIwasn'tinterestedinalcoholicdrinksandneitherweremyhighschoolfriends. SowhenIarrivedoncampusformyfirstyearofuniversitylifeIwasabitshocked.Manydifferenteventshadbeenorganizedforthefreshmenbuttheyallhadonethingincommon﹣alcoholandplentyofit.NotwantingtobeleftoutIjoinedafewoftheevents.ButIalwaysreturnedhomeearlyfeelingdisappointed.Yourpersonalityinterestsandexperiencesdidn'tmatteratallonlyhowmanyalcoholicdrinksyoucouldabsorbbeforepassingout喝醉.ItseemedshallowtomeIwantedtogettoknowmynewclassmatesnothowfasttheycoulddownapintofbeer. GraduallyhoweverIrealizedthatrealfriendsdon'tjudgeyoubyhowmuchyoucandrinkandtherewereotherwaysofmakingfriends.IjoinedaphotographysocietytookafirstaidcourseandeveryweekendIwentcyclingwithaclassmate.IfoundthatbyengagingintheseactivitiesandsharingthefunoflearningnewskillstogetherinagroupIformedmuchstrongerbondswithmynewfriendsthaneventhestrongestalcoholicdrinkscouldencourage. AnothervaluablelessonIlearnedisthatit'sperfectlyokaytosayNoifyoudon'twanttodrink.HoweverinmanyWesternsocietiesespeciallytheUKbingedrinking狂喝hasbecomethenorm.Manypeoplewhodrinkdon'tnecessarilywanttobuttheygiveintothepeerpressure同伴压力﹣they'reafraidtosayNo. 1Whatshockedtheauthorwhenheentereduniversity? A.Thestrangecampus. B.Thepopularityofalcohol. C.Thedrunkenclassmates. D.Thelimitedactivities. 2Whydidtheauthorreturnhomeearlyfromtheeventsatfirst? A.Hewasn'tgoodatdrinking. B.Hehadnofamiliarclassmates. C.Hehatedthewaypeoplegotalong. D.Hewasleftoutbytheorganizers. 3Howdidtheauthorfinallymakerealfriendsatuniversity? A.BysayingNotoalcoholicdrinks. B.Bystayingawayfromgroupactivities. C.Bygivingintothepeerpressure. D.Byjoiningpeoplewithcommoninterests.
10分 HowtomakeQuickDecisionsForYourLife Wemakedecisionseveryday.1Whenitcomestomakingdecisionschoosingtherightonecanattimesbestressfulespeciallyifthedecisionmustbemadequickly.Indecisionoftenweighsusdownbuttherearesomeusefultipsformakingquickdecisionsmoreeasily. 2Sometimesthekeytomakingaquickdecisioncomesdowntoplanningaheadoftimeforjustsuchanoccasion.Weallknowwe'regoingtocometoanimportantdecision﹣makingpointsoonerorlatersohavingaplanalreadyinhandcanputourmindateasewhenthattimecomes. Overcomefear.3Whileitmayseemdifficulttoovercomethefearofmakingthewrongchoicemanyexpertsagreethatweshouldn'tbeafraidtomakethewrongdecisionevenifitseemsimportant.Thevastmajorityofwrongdecisionscanbecorrectedwhiledelayingdecisionscanoftenleadtomoreproblems. Writedownalltheadvantagesanddisadvantagesofyourdecision.Evenifyoudon'thavealltheinformationwritingdownalltheprosandcons优缺点isagoodstartingpointforfiguringoutwhattodo.Incaseswheretheresimplyisn'tenoughtimetowritethingsdownmakeamentallistinyourmind.Thinkingoftheprosandconscanhelpyouorganizeyourthoughts.4 Determinecriteria.Rememberthateverydecisionyoumakeshouldcomewithacertainlistofcriteria.5Butonceyouknowtherequirementsyou'relookingformakingadecisionwillbecomeeasier.Lookforthechoicethatsatisfiesthelistyou'vemadeandoncethatchoiceisfoundyoushouldmoveaheadwithit. A.Haveaplan. B.Thelistmaybeshortorquitelong. C.Communicateyourdecisionwithothers. D.Andthiscanalwaysleadtoaclearanswer. E.Socutoutanyoptionsthatyouknowyouwillnotchoose. F.Oftenonethingthatkeepsusfrommakingdecisionsisfear. G.Somecanbeveryimportantwhileothersarenotseriousinthelongrun.
6分TheOldiesbutGoodiesjazzbandwillperformromanticmusicforValentines'Day.Theband'srepertoire常备节目includesjazzmusicofthe1950﹣60sdomesticandoverseasfolksongsandpopsongs.ProgramsofthelatestconcertincludeMoonRiverAutumnWhisperButterflyLoversLoveStoryRosyLifeMyHeartWillGoOnandANightatMoscow'sSuburb.7:30pmFeb14ChinaNationalLibraryConcertHall33ZhongguancunNandajiHaidiandistrict010﹣6848﹣5462TheChinaNationalSymphonyOrchestrawillputonaconcertnamedRomanticEarlySpring.OntheperformancelistareTonightUnforgettableInMemoryBeautifulLegendIHopeYou'llComeBackandThisisLove.7:30pmFeb14BeijingConcertHallIXichengdistrict010﹣6605﹣7006Internationalcello大提琴masterYo﹣YoMawillperforminGuangzhou.TheGrammywinnerwhoispopularinboththeEastandWestwillplayMarkO'Connor'sAppalachiaWaltzAhmedAdnanSaygun'sPartitaandBach'sSuiteNo.1andSuiteNo.2.7pmJan26SymphonyHallXinghaiConcertHall33QingboLuErshaIsland020﹣8737﹣2222TheconcertforchildrenwillfeaturefamousRussiancomposerSergeyProkofiev'smasterpiece.PeterandtheWolf.Itisachildren'sstorywithbothmusicandtextbyProkofievspokenbyanarratoraccompaniedbytheorchestra.ChildrenwithticketstotheconcertwillalsogetfreeadmissiontotwoforumsfeaturingthemusicalandSergeyProkofiev.8pmFeb8ChamberHallXinghaiConcertHall33QingboLuErshaIsland020﹣8738﹣22231Jackisfondofpopmusicandhewouldmostprobablychoosetogoto.A.ChinaNationalLibraryConcertHallB.SymphonyHallXinghaiConcertHallC.ChamberHallXinghaiConcertHallD.BeijingConcertHall2MaryisagreatfanofBachandformoreinformationshecandial.A.010﹣6848﹣5462B.010﹣6605﹣7006C.020﹣8737﹣2222D.020﹣8738﹣22233Whatisspecialaboutthelastconcert?A.Youcanenjoydifferentkindsofmusic.B.Youcanenjoybothmusicandstory.C.Childrencanattenditfreeofcharge.D.Itwillbeperformedbyaninternationalmaster.
8分Youuseherasashouldertocryon.Shetextsyoubackwithcasualjokes.ButsheXiaoiceisonlyavirtualchat﹣bot. XiaoiceMicrosoft'slatestartificialintelligencerobotwasbrieflyreleasedin2014andreturnedtoWe﹣Chatin2015whereshebecameabighit.MillionsofyoungChinesenowexchangemessageswithherdailyTheNewYorkTimesreported.OnWe﹣ChatXiaoiceisanofficialaccount.Afterfollowingituserscanstarttext﹣basedconversationswithXiaoice. HerincrediblelearningabilitywaswhypeoplelovedtotalkwithXiaoiceLiuJinchangaresearcheratHigh﹣techResearchandDevelopmentCenterundertheMinistryofScienceandTechnologytoldChinaDaily.Apartfromherabilitytoidentifyphotosandsendemojis表情符号inconversationsXiaoicegains45percentofherknowledgefrominteractingwithusersChinaDailyreported. Chat﹣botprogramsfirstappearedinthemid﹣1960sintheUS.Drivenbytoptechcompaniestheyarebecomingsmarterandmorecommon.ForinstanceIBM'slatestartificialintelligenceprogramservedasanacademicconsultantatAustralia'sDeakinUniversityansweringstudents'questionsaboutcourseschedulesandfinancialaid.Apple'sSiriandAmazon'sAlexahavebeenusedasvoiceassistantswhocanreadnewsplaymusicandevenmakejokesfortheirusers. Theseprogramsareexpectedtomovebeyondsmart﹣phonesintotelevisionscarsandlivingrooms.TheNewYorkTimespointedout.HoweveritmaytakedecadesbeforescientistsdevelopaSamanthatheadvancedchat﹣botseeninthefictionfilmHer.InthefilmSamanthasparksaromanticrelationshipwithheruserplayedbyUSactorJoaquinPhoenix.Manyviewerswereenthusiasticaboutthisfantasyofvirtualsoulmates. 1WhatdoestheunderlinedpartinParagraphTwomean? A.Shebecameabestseller. B.Shebecameverypowerful. C.Shebecameamoneymaker. D.Shebecameverypopular. 2WhichofthefollowingcanXiaoicedo? A.Dohousework. B.Spreadmessages. C.Identifyvariousphotos. D.Readnewstoitsusers. 3Whichcompany'schat﹣botprogramcanactasanacademicconsultant? A.Microsoft. B.IBM. C.Apple. D.Amazon. 4Whatcanbelearnedfromthelastparagraph? A.Chat﹣botsmainlyrunonsmart﹣phonesnow. B.It'lltakedecadestoapplychat﹣botstocars. C.SamanthaisplayedbyaUSactorinthefilm. D.ThefilmHerdoesn'tinterestmanyaudience.
25分假定你是李华收到了美国朋友彼得寄来的最新英文小说.请你给他回邮件内容包括: 1.小说收到; 2.回赠礼物; 3.礼物意义; 4.邀请他来华. 注意: 1.词数80左右; 2.可适当增加细节以使行文连贯.
6分ForanymusiclovertheInternetcanbeanever﹣endingsourceofmusic.WenolongerneedtofillaroomwithcassettesorDVDs.Onlinemusicstoresarealltheragethesedayswithmoreandmorepeoplechoosingtobuymusiconline.We'regladtoofferyouthebestwebsites. Apple'siTunesStoreisthemostpopularmusicstoreonlinetoday.Ithassoldmorethan25billionsongs.Itisalsooneofthemostupdatedstoresonlinewitheventhelatestalbumsfindingtheirwaytoitwithinhoursoftheirrelease.Mostsongscanbepurchasedforaslittleas﹩0.99.Website:www.apple.com/iTunes/ AmazonMP3isanarguablepioneerinbringingthebesttracksatthecheapestpricestothecustomers.Thesongscanbepurchasedforascheapas﹩0.69.WhatmakesthedealevensweeteristhatthetracksyoupurchasefromthestorecanbeeasilytransferredtotheAmazonCloudDriveforfree.Website:www.amazon.com GoogleMusicnowoffersmorethan13milliontracks.WhatmakesitstandoutfromtherestofthecompetitionisthefactthatitletsyoudownloadDRM﹣free320kbpsmp3files.Itoffersfreecloudstorageforallyourpurchasesfromthestore.Thetracksusuallyrangefrom﹩0.99to﹩1.29.Themaindisadvantageisthatthestoreiscurrentlynotsupportedacrossmostoftheworld.Website:www.music.google.com E﹣Musicisapopularnameintheonlinemusicindustrywithmorethan17milliontracksonoffer.Thisisamembership﹣basedservicewhichstartsat﹩11.99permonthforupto24tracks.ItsupportsalargelibraryofDRM﹣freetracksacrossmoststyles.Theonlymajordisadvantageforthisserviceisthatitisn'tavailableinmostcountries.Website:www.emusic.com There'sanabsolutetreasuretrove无主珍宝ofmusicwaitingtobeexploredontheInternet.Allyouneedtodoisaccessoneoftheseamazingstoresandgettransportedintoanotherworld.Ifyouneedanyhelpwecanhelpyou.Foranyhelpclickhere. 1TheunderlinedpartalltherageinParagraph1probablymeans. A.verypopular B.abitexpensive C.totallyreliable D.ratherinconvenient 2Ifyouwanttobuyyourfavoritetracksatthecheapestpricesyoucanvisit. A.www.emusic.com B.www.amazon.com C.www.apple.com/i'Tunes/ D.www.music.google.com 3E﹣Musicdiffersfromotherwebsitesmentionedinthepassageinthat. A.itoffersthemostpopulartracks B.itisavailabletousersworldwide C.itisonlyintendedforitsmembers D.itcoversalltypesofmusicworldwide
10分Everyonecanbenefitfrommakinganefforttopracticegratitude感激everyday.Thefollowingthreestepscanhelpyoustartfeelingmoregratefulandappreciativeofthegoodthingsinyourlife: NoticetheGoodThingsinYourLife 1Payattentiontothesmalleverydaydetailsofyourlife﹣naturepeoplecommunitysheltercreaturecomfortslikeawarmbedoragoodmeal.Andthenstartagratitudejournal日记.Makingacommitment承诺保证towritingdowngoodthingseachdaymakesitmorelikelythatwewillnoticegoodthingsastheyhappen. EnjoytheFeelingofGratitude Therearemomentswhenyounaturallyrightthenandtherefeelfilledwithgratitude.ThesearemomentswhenyousaytoyourselfOhwowthisisamazing!orHowgreatisthis!Pause.2Letitsinkin.Enjoyyourblessingsinthemomenttheyhappen. ExpressGratitude Expressinggratitudeismorethanbeingpolite.3Showyourappreciationtosomeonewhoreallydidsomethingnice.Say:Itwasreallykindofyouto…Youdidmeabigfavorwhen…orThankyouforbeingtherewhen….4Holdthedooropenforthepersonbehindyouevenifitmeanswaitingalittlelongerthanyounormallywould. Truegratitudedoesn'tleaveyoufeelinglikeyouoweotherpeoplesomething﹣afterallifyou'vedonesomeoneafavoryouprobablydon'twantthepersontofeellikeyouexpectsomethingbackinreturn.5 A.It'saboutshowingyourheartfeltappreciation. B.Justnoticeandabsorb吸收吸入thatfeelingoftruegratitude. C.Youcanalsoexpressgratitudebydoingakindness. D.It'sallaboutfeelinggoodandcreatingacycleofgood. E.Starttonoticeandidentifythethingsyouaregratefulfor. F.Helpsomeonewithoutlettingthepersonfindoutitwasyou. G.It'samazingwhatyounoticewhenyoufocusonfeelinggrateful.
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