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25℃时,向等物质的量浓度的Na2S和Na2CO3的混合溶液中滴加Ni(NO3)2溶液产生NiS、NiCO3两种沉淀,溶液中阳离子、阴离子浓度关系如图所示[已知25℃时,Ksp(NiS)=3.0×1...
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高三下学期化学《》真题及答案
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下列叙述中正确的是
向含有CaCO3沉淀的水中通入CO2至沉淀恰好溶解,再向溶液中加入NaHCO3饱和溶液, 又有CaCO3沉淀生成
向Na2 CO3溶液中逐滴加入等物质的量的稀盐酸,生成的CO2与原溶液中Na2CO3的物质 的量之比为1:2
等质量的NaHCO3和Na2 CO3分别与足量稀盐酸反应,在同温同压下,生成的CO2体积相同
向Na2CO3饱和溶液中通入足量CO2,有NaHCO3 结晶析出
用无水Na2CO3作一级标准物质标定HCl溶液时如果Na2CO3中含少量中性杂质则标定出HCl溶液的
偏高
偏低
无影响
不能确定
将20.000克Na2CO3准确配制成1升溶液其物质的量浓度为0.1887mol/L [MNa2CO
现要配制1mol/LNa2CO3溶液250mL求1需要固体Na2CO3________g2需要含结晶
硫代硫酸钠是一种重要的化工产品某兴趣小组拟制备硫代硫酸钠晶体Na2S2O3·5H2OⅠ.[查阅资料]
碳酸钠Na2CO3俗称苏打碳酸氢钠NaHCO3俗称小苏打两种盐的水溶液均显碱性均能与盐酸反应生成氯化
把足量的小苏打固体和少量的过氧化钠固体混合均匀后充分加热最后留下的固体物质的化学式是
Na2CO3
NaOH和Na2CO3
Na2O2和Na2CO3
Na2O2、NaOH和Na2CO3
常温下下列溶液中有关物质的量浓度关系正确的是
pH=2的HA溶液与pH=12的MOH溶液任意比混合: c(H+) + c(M+) === c(OH-) + c(A-)
pH相等的CH3COONa、NaOH和Na2CO3三种溶液: c(NaOH)<c(CH3CO ONa)<c(Na2CO3)
物质的量浓度相等CH3COOH和CH3COONa溶液等体积混合: c(CH3COO-) +2c(OH-) === c(H+) + c(CH3COOH)
0.1mol•L-1的NaHA溶液,其pH=4:c(HA-)>c(H+)>c(H2A)>c(A2-)
取1.43gNa2CO3•10H2O溶于水配成100mL溶液Na+物质的量浓度为0.1mol/L取出
向50mLNa2SO4和Na2CO3的混合溶液中加入过量的BaCl2溶液得到14.51g白色沉淀向白
取1.43gNa2CO3·10H2O溶于水配成100ml溶液求1Na2CO3物质的量浓度2Na+物质
用Na2CO3作基准物质来标定HCl溶液时如果Na2CO3中含有少量NaHCO3将会使HCl浓度的标
向50mLNa2SO4和Na2CO3的混合溶液中加入过量的BaCl2溶液得到14.51g白色沉淀向白
相同质量的碳酸钠基本单元为Na2CO3的物质的量和基本单元为1/2Na2CO3的物质的量之间的关系是
n(Na2CO3)=n(1/2Na2CO3)
n(Na2CO3)=2n(1/2Na2CO3)
2n(Na2CO3)=n(1/2Na2CO3)
不确定
取50.0mLNa2CO3和Na2SO4的混合溶液加入过量BaCl2溶液后得到14.51g白色沉淀.
已知25℃时有关弱酸的电离平衡常数则下列有关说法正确的是
等物质的量浓度的各溶液pH关系为pH(NaCN)>pH(Na2CO3)>pH(CH3COONa)
amol·L—1HCN溶液与amol·L—1NaOH溶液等体积混合后,所得溶液显碱性(pH>7),则c (OH-)>c(H+),c(Na+)>c(CN-)
冰醋酸中逐滴加水,溶液的导电性、醋酸的电离程度、pH均先增大后减小
NaHCO3和Na2CO3混合溶液中,一定有c(Na+)+c(H+)=c(OH-)+c(HCO3-) +c(CO
)
与50mL0.1mol-1Na2CO3溶液中Na+的物质的量浓度相同的溶液是
50mL 0.2mol·L-1的 NaCl 溶液
100mL 0.1mol·L-1的 NaCl 溶液
25mL 0.2mol·L-1的 Na2SO4
溶液
10mL 0.5mol·L-1的 Na2CO3
溶液
下图表示的是向Na2CO3溶液中滴入稀盐酸时产生CO2的过程1写出a点以前发生反应的离子方程式___
物质的量浓度相同的下列溶液中符合按pH由小到大的顺序排列的是
Na2CO3 NaHCO3 NaCl NH4Cl
Na2CO3 NaHCO3 NH4Cl NaCl
(NH4)2SO4 NH4Cl NaNO3 Na2S
NH4Cl (NH4)2SO4 Na2S NaNO3
硫代硫酸钠是一种重要的化工产品某兴趣小组拟制备硫代硫酸钠晶体Na2S2O3·5H2OⅠ.[查阅资料]
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下列物理常量单位正确的是
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MyFavouriteBooks JoUsmarisawriterforCosmopolitanandco﹣authoroftheThisBookWillseries系列oflifestylebooks.Hereshepickshertopreads. Matilda RoaldDahl IoncewroteapaperontheinfluenceoffairytalesonRoaldDahl'swritinganditgavemeanewappreciationforhisstrangeanddelightfulworlds.Matilda'sbattleswithhercruelparentsandthebossyheadmistressMissTrunchbullareequallyfunnyandfrighteningbutthey'realsoaspirational. AfterDark HarukiMurakami It'sabouttwosisters﹣Eriamodelwhoeitherwon'torcan′tstopsleepingandMariayoungstudent.IntryingtoconnecttohersisterMaristartschangingherlifeanddiscoversaworldofdiversenightpeoplewhoarehidingsecrets. GoneGirl GillianFlynn Therewasabitofmethatdidn′twanttolovethiswheneveryoneelseontheplanetdidbutthehorrorstoryisbrilliant.There'stensionandanxietyfromthebeginningasNickandAmybattleforyourtrust.It'sarealwhodunitandthefrustrationwhenyourealisewhat'sgoingonishorriblyenjoyable. TheStand StephenKing Thisisanexcellentfantasynovelfromoneofthebeststorytellersaround.Afteraseriousfluoutbreakwipesout99.4%oftheworld′spopulationabattleunfoldsbetweengoodandevilamongthoseleft.RandallFlaggisoneofthescariestcharactersever. 1WhodoesIrefertointhetext? A.StephenKing. B.GillianFlynn. C.JoUsmar. D.RoaldDahl. 2WhichofthefollowingtellsaboutMariandEri? A.Cosmopolitan. B.Matilda. C.AfterDark. D.TheStand. 3WhatkindofbookisGoneGirl? A.Afolktale. B.Abiography. C.Alovestory. D.Ahorrorstory.
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. Ibecameinterestinginplayingfootballthankstoasmallaccident.OneafternoonwhereIwasinprimaryschoolIwaswalkingbytheschoolplayground.Suddenlyfootballfelljustinfrontofmebutalmosthitme.Istoppedtheballandkickedithardlybacktotheplayground.Toeveryone′ssurprisingtheballwentintothenet.AllthefootballplayerontheplaygroundcheeredloudlysaythatIhadatalentforfootball.FromnowonIstartedtoplaymyfootballwithclassmatesafterschool.Iamagoodplayernow.
ForCanaanElementary'ssecondgradeinPatchogueN.Y.todayisspeechdayandrightnowit'sChrisPalaez'sturn.The8﹣year﹣oldisthejokeroftheclass.Withshiningdarkeyesheseemslikethekindofkidwhowouldenjoypublicspeaking. Buthe'snervous.I'mheretotellyoutodaywhyyoushould…should…Christripsonthe﹣ldapronunciationdifficultyformanynon﹣nativeEnglishspeakers.HisteacherThomasWhaleyisnexttohimwhisperingsupport.…Votefor…me…ExceptforsomestumblesChrisisdoingamazinglywell.WhenhebringshisspeechtoaniceconclusionWhaleyinvitestherestoftheclasstopraisehim. AsonofimmigrantsChrisstartedlearningEnglishalittleoverthreeyearsago.Whaleyrecalls回想起howatthebeginningoftheyearwhencalledupontoreadChriswouldexcusehimselftogotothebathroom. LearningEnglishasasecondlanguagecanbeapainfulexperience.Whatyouneedisagreatteacherwholetsyoumakemistakes.IttakesalotforanystudentWhaleyexplainsespeciallyforastudentwhoislearningEnglishastheirnewlanguagetofeelconfidentenoughtosay‘Idon'tknowbutIwanttoknow.' Whaleygottheideaofthissecond﹣gradepresidentialcampaignprojectwhenheaskedthechildrenonedaytoraisetheirhandsiftheythoughttheycouldneverbeapresident.Theanswerbrokehisheart.Whaleysaystheprojectisaboutmorethanjustlearningtoreadandspeakinpublic.Hewantsthesekidstolearntoboast夸耀aboutthemselves. BoastingaboutyourselfandyourbestqualitiesWhaleysaysisverydifficultforachildwhocameintotheclassroomnotfeelingconfident. 1WhatmadeChrisnervous? A.Tellingastory. B.Makingaspeech. C.Takingatest. D.Answeringaquestion. 2Whatdoestheunderlinedwordstumblesinparagraph2referto? A.Improperpauses. B.Badmanners. C.Spellingmistakes. D.Sillyjokes. 3WecaninferthatthepurposeofWhaley'sprojectisto. A.helpstudentsseetheirownstrengths B.assessstudents'publicspeakingskills C.preparestudentsfortheirfuturejobs D.inspirestudents'loveforpolitics 4WhichofthefollowingbestdescribesWhaleyasateacher? A.Humorous. B.Ambitious. C.Caring. D.Demanding.
Everyyearabout40000peopleattempttoclimbKilimanjarothehighestmountaininAfrica.They1withthemlotsofwaste.The2mightdamagethebeautyoftheplace.Theglaciers冰川aredisappearingchangingthe3ofKilimanjaro. HearingthesestoriesI'm4abouttheplace﹣otherdestinationsaredescribedaspurernaturalexperiences. HoweverIsoon5thatmuchhaschangedsincethedaysofdisturbingreportsof6amongtonsofrubbish.Ifinda7mountainwithtoiletsatcampsandalongthepaths.Theenvironmentalchallengesare8buttheeffortsmadebytheTanzaniaNationalParkAuthorityseemtobe9. ThebestofaKilimanjaro10inmyopinionisn'treachingthetop.Mountainsare11asspiritualplacesbymanycultures.This12isespeciallyevidentonKilimanjaroas13gothroughfiveecosystems生态系统inthespaceofafewkilometers.Atthebaseisarainforest.Itendsabruptlyat3000meters14landsoflowgrowingplants.Furtheruptheweather15﹣lowcloudsenvelopethemountainsideswhicharecoveredwiththickgrass.I16twelveshadesofgreenfromwhereIstand.Above4000metersisthehighland17:gravel砾石stonesandrocks.18youclimbintoanarctic﹣likezonewith19snowandtheglaciersthatmaysoondisappear. DoesKilimanjaro20itsreputationasacrowdedmountainwithlinesoftouristsruiningtheatmosphereofpeace?Ifoundtheoppositetobetrue. 1A.keep B.mix C.connect D.bring 2A.stories B.buildings C.crowds D.reporters 3A.position B.age C.face D.name 4A.silent B.skeptical C.serious D.crazy 5A.discover B.argue C.decide D.advocate 6A.equipment B.grass C.camps D.stones 7A.remote B.quiet C.all D.clean 8A.new B.special C.significant D.necessary 9A.payingoff B.spreadingout C.blowingup D.fadingaway 10A.atmosphere B.experience C.experiment D.sight 11A.studied B.observed C.explored D.regarded 12A.view B.quality C.reason D.purpose 13A.scientists B.climbers C.locals D.officials 14A.holdingonto B.goingbackto C.livingupto D.givingwayto 15A.changes B.clears C.improves D.permits 16A.match B.imagine C.count D.add 17A.village B.desert C.road D.lake 18A.Obviously B.Easily C.Consequently D.Finally 19A.permanent B.little C.fresh D.artificial 20A.enjoy B.deserve C.save D.acquire
如图AB为ab两束单色光分别经过同一双缝干涉装置后在屏上形成的干涉图样则
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作文文中共有实处错误美剧中最多有两处.每处错误仅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上的词汇. 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.每处错误及其修改仅限一词;2.只允许修改10出多者从第11处起不计分 ThissummerIvisitedHnagzhouandthisjourneyhadimpressedmedeeply.BeingacapitalofZhejiangProvinceHangzhouliesinthesoutheastofChina.Therearealotofplaceofinterest.AmongthemtheWestLakeisthebest﹣knownattractionwherewaterseemtomeltintotheskybythedistance.BesidesthereareseveralmuseumslocatintinHangzhouthatshowitsuniqueculture.What'smoreyoucanenjoymanykindsofdeliciouslylocalfoodsuchasWestLakefishinVenegarSauceandDongpoPork.Thepeopletherarefriendlyandkindbuttheyareworkinghardmakethecitymorebeautiful. WhatattractiveandinvitingHangzhouis!
为卢瑟福提出原子核式结构模型提供依据的实验是
A90﹣year﹣oldhasbeenawardedWomanOfTheYearfor1beBritain'soldestfull﹣timeemployee﹣stillworking40hoursaweek.NowIreneAstburyworksfrom9amto5pmdailyatthepetshopinMacclesfield2sheopenedwithherlatehusbandLes.Heryearsofhardworkhave3finalbeenacknowledgedafteracustomernominated提名hertobeCheshire'sWomanOfTheYear. PickingupherLifetimeAchievementawardproudIrene4declareshehadnoplans5retirefromher36﹣year﹣oldbusiness.IrenesaidIdon'tseeanyreasontogiveupwork.IlovecominghereandseeingmyfamilyandallthefriendsI6makeovertheyears.IworknotbecauseIhaveto7becauseIwantto. GranddaughterGayleParks31﹣whoworksalongsideherinthefamilybusiness﹣saiditremainedunknownastowhonominatedIrenefortheaward.ShesaidWedon'thaveanyideawhoputgrandmaforward.Whenwegotacall8sayshewasshort﹣listedwethoughtitwas9joke.Butthenwegotanofficialletterandwewereblownaway.Wearesoproudofher.It's10wonder.
Howcrowdedyourneighborhoodiscanaffectthehealthofourplanetanewstudyfinds.Scientistsmeasuredtheeffectthatpeoplehaveontheenvironmentusingacarbonfootprint.Thatfootprintreflectstheamountofcarbondioxide﹣agreenhousegas﹣thatissentintotheatmospherebecauseofpeople'sdailyactivities. Carbonfootprintstendtobelowforcitizens.Livinginasuburboutsideacityhowevercanbeopposite. Peoplelivinginthecitycentershavelowcarbonfootprintstheresearchersfound.ItismucheasiertohavealowcarboneffectifyourhomeisclosetowhereyouworkshopandplayexplainsJones.Livingwithinwalkingorbikingdistancecutsbackontheamountofcarbondioxidecomparedwithmovingpeoplebycars.Andcitieswithbusandsubwaynetworksallowpeopletotravelgreatdistanceswhilekeepingtheamountofgreenhousegaseslow. Noteveryonecanaffordtoliveinthecityhowever.Suburbsoffermorespaceallowingpeopletobuildlargerhomes.Suburbsmayofferbetterschoolstokids.Butthosehomesareusuallyfarawayfromwhereownersworkplayorlearn.Sopeoplewholiveinsuburbsoftendrivelongdistances. Theaveragehouseholdinalargecitysendsoutabout40tonsofcarbondioxideperyear.Theaveragesuburbanhouseholdhoweversendsoutcloseto50tonsofcarbondioxideperyear. TheNewfindingsareanimportantcontributiontoclimateresearch.Theywouldgivescientistsabetterfeelofhowculturemightmixwithlocationstoinfluenceourcarbonfootprints. Youmaynothaveanycontroloverthelocationofyourhome.Stilleveryonecantakestepstoshrinktheircarbonfootprints.That'sbecausehowmuchwepolluteisinfluencednotjustbywherewelivebutalsobyhowwelive. Toshrinkyourfootprintsstartsmall.Turnofflightswhenthey'renotinuse.Recycleorreusethingsinsteadofthrowingthemaway.Andaspeoplegetusedtomakingsmallchangestheleaptobiggeroneswillgeteasier. 1Whydopeoplelivinginsuburbshavehighercarbonfootprints? A.Becausetheyoftendrivetoworkplayordootherthings. B.Becausetheirhomestakeuptoomuchspace. C.Becausetheyoftenusebusesandsubwaystotravelgreatdistance. D.Becausetheyhavetosendtheirkidstoschoolsbycar. 2HowareParagraph3to5mainlydeveloped? A.Bygivingexamples. B.Bymakingcomparisons. C.Byfollowingtimeorder. D.Byexplainingprocesses. 3Wecaninferfromthepassagethat. A.peoplelivinginbigcitiesproducemorecarbondioxide B.cultureplaysthemostimportantroleininfluencingtheenvironment C.anyprocessofmakingnewproductsmaypollutetheenvironment D.one'ssmallstepcanmakeabigdifferencetotheenvironment 4Fromwhichpartofawebsitecouldthispassageprobablybetaken? A.Health. B.Sports. C.Culture. D.Environment.
如图所示与竖直方向成45°角的天花板上有一物块该物块在竖直向上的恒力F作用下恰好能沿天花板匀速上升则下列说法中正确的是
Anelderlycarpenterwasreadytoretire.Hetoldhisemployerofhisplansto1thehouse﹣buildingbusinesstoliveamore2lifewithhiswifeandenjoyhisextendedfamily.Hewouldmissthepaycheck工资eachweek3hewantedtoretire.Theycouldgetby. Theemployerwas4toseehisgoodworkergoandaskedifhecouldbuildjustone5houseasapersonalfavor.Thecarpentersaidyesbut641timewentbyitwaseasytoseethathisheartwasnotinhiswork.Heusedbadworkmanshipand7materials.Itwasanunfortunatewayto8adedicatedcareer. Whenthecarpenterfinishedhisworkhisemployercameto9thehouse.Thenhehandedthefront﹣door10tothecarpenterandsaidThisisyourhouse…my11toyou. Thecarpenterwasshocked!Whatashame!Ifhehadonlyknownhewasbuildinghisownhousehewouldhavedoneitallso12. Soitiswithus.We13ourlivesadayatatimeoftenputting14thanourbestintothebuilding.Thenwithashockwe15wehavetoliveinthehousewehavebuilt.Ifwecoulddoitoverwewoulddoitmuchdifferently. Butyoucannot16.Youarethecarpenterandeverydayyou17anailplaceaboardorbuildawall.SomeoneoncesaidLifeisado﹣it﹣yourselfproject.Your18andthechoicesyou19todayhelpbuildthehouseyouwillliveintomorrow.Thereforebuild20! 1A.continue B.start C.leave D.find 2A.relaxing B.lonely C.orderly D.friendly 3A.while B.which C.but D.before 4A.polite B.nervous C.proud D.sorry 5A.another B.most C.more D.much 6A.as B.with C.for D.when 7A.perfect B.inferior C.superior D.tough 8A.satisfy B.improve C.meet D.end 9A.promote B.repair C.inspect D.warn 10A.model B.design C.key D.pattern 11A.gift B.promise C.donation D.encouragement 12A.carefully B.differently C.magically D.deliberately 13A.reserve B.equip C.harmonize D.build 14A.less B.worse C.more D.rather 15A.explain B.realize C.think D.admit 16A.lookaround B.stepforward C.goback D.comeout 17A.hammer B.polish C.beat D.hit 18A.experience B.attitude C.skill D.advantage 19A.learn B.take C.see D.make 20A.badly B.early C.wisely D.confidently
InrecentweekscustomershavebeenqueuingatDonutCitystartingat4:30a.m.tobuydozensofdoughnuts甜甜圈.Customerssaythedoughnutsare1.Butthetasteisnotthereasonwhythey'vebeenwaitingin2tobuythem. Itstartedafewweeksagowhencustomersstartednoticingthatsomethingwas3.Everydayforthepast28yearsthefriendlyhusband﹣and﹣wife4ofDonutCity﹣StellaandJohnChhan﹣havestoodbehindthecounter5doughnuts.ButthenonedayStellaChhanwasn'tthere. WhencustomersenquiredJohnChhan62toldthemStellahadfallenillandwas6inanursinghome.Hewouldvisithiswifeonceallthedoughnutswere7. DawnCaviolaa8ofDonutCitythoughtifenoughpeoplewouldbuyadozendoughnutseverymorningJohnChhancouldcloseearlyandgoto9hiswife. AfterCaviolapostedthe10ontheneighborhoodmessageboardneighborsandfansrespondedinapositiveway.Theystarted11inthedarkorderingdozensofdoughnuts. JeneeRogershasbeena12DonutCitycustomerforthepast20years.Shesawalocalnewsstoryaboutthe13tohelptheChhanswhichincludedtryingtosetupaGoFundMepageto14moneytohelptheChhansbutthey15theoffer.Rogerssaidsheandallofherfriendsstartedtospreadthewordtogototheshop16andbuydoughnuts. WhenStellaChhan17fellillafewweeksagoJohnChhansaidshecouldn'tspeakandhadtrouble18.Nowshe'stalkingsomeandcansitdownonherownandsheisgettingbetterandbetter. InaphoneinterviewJohnChhanexpressedhowthankfulheistohis19customers. I20it.hesaid.Ijustcan'tsayenoughthankyouandthankyou. 1A.cheap B.delicious C.smelly D.juicy 2A.line B.exchange C.panic D.return 3A.common B.interesting C.awkward D.wrong 4A.customers B.neighbors C.owners D.waiters 5A.buying B.selling C.ordering D.sending 6A.working B.volunteering C.recovering D.visiting 7A.takenout B.soldout C.calledoff D.putoff 8A.worker B.citizen C.reporter D.fan 9A.accompany B.praise C.encourage D.recognize 10A.choice B.movement C.idea D.advertisement 11A.turningup B.puttingup C.takingup D.makingup 12A.modest B.regular C.responsible D.strict 13A.command B.courage C.effort D.ability 14A.raise B.earn C.save D.borrow 15A.sacrificed B.advocated C.postponed D.declined 16A.early B.rarely C.mainly D.frequently 17A.eventually B.initially C.occasionally D.gradually 18A.listening B.seeing C.tasting D.moving 19A.honest B.generous C.polite D.considerate 20A.regret B.consider C.appreciate D.deserve
MysonSamis16andautistic自闭症.There'salotofgoingoninthatbeautifulandbrilliantmindofhisbutevenonagooddayhecanbeeasilyataloss.Throwinsomediagnosedanxietyaninabilitytoreadsocialcues信号andanunexpectedchangetohisdailyroutineandyouhavethewaytodealwithaverypublicmeltdown崩溃. ItwasSam'sveryfirstdayathighschool.We'dsetupaplanforhowhe'dgethome:I'dpickhimupoutsidetheshopnearhisschoolat3:30pmandIbelievedthiswasaperfectplan.UnknowntomeverybadweatherwasonitswayandIwasunabletowarmhimtotakeashelter. WiththecombinationofhisdeadphonebatteryandmydeadcarbatteryIwasrunninglateandunabletocommunicatethattohim.Asaresulthewasleftaloneandextremelyfrightened.HebecameveryupsetoutsidetheshopexactlywhereI'dtoldhimtowait. ThiswaswhenabeautifulolderVietnameseladynotonlywenttoCHECKONhimbuttookhiminsidehershopcalmedhimdowngotmyphonenumberformhimandcalledme. Fiveyearslaterhecontinuedtogointohershopeveryafternoonboughtadrinkhadachatandshesenthimhomewithenoughbreadandrollstofeedasmallnation. SamwillgraduatethisyearandI'mincreasinglyfeelingtheneedtodropbytheshoptoletthiswonderfulladyknowthatshehassavedSamandthatshehassavedme.I'mnotsureifIcancommunicateallofthisbutatleastIwillgettothankher. TherearepeopleIwillnotgettothankthough﹣themanykindstrangerswhohavebeenthereforSam.Andbelievemeifyou'rewonderingifthisworldisacompletemessrightnowI'mheretosaythatisnot. SoIguessthisisalovelettertothoseofyouwhohavehelpedastrangeroutofthegoodnessofyourheart.Pleasedknowhyouareappreciatedthatyourbeautifulheartandkindnessareappreciatedandthatperhapsunknowinglyyouhavemakeagreatdifferenceinsomeone'slife. 1WhatcanwelearnaboutSamfromthefirstparagraph? A.Heisratherslowwithhisstudies B.Hecandealwithsuddenchangeswell C.Hehasdifficultyindealingwiththings D.Hetrieshardtolearnhowtoreadsocialcues 2Theunderlinedpartcheckoninparagraph4probablymeans A.discover B.visit C.recognize D.examine 3WhathappenedtoSamafterhisfirstdayathighschool? A.Hecouldgetonwellwithhisclassmates B.Hemadegoodfriendswiththenicelady C.Hebroughttheladysomefoodtothankher D.hebecamewillingtocommunicatewithothers. 4Whatistheauthor'spurposeinwritingthepassage? A.Toexpressherthankstokindpeople B.Toremindusalltohelpautisticpeople C.Toshowhowdifficultlifeisforautisticpeople D.Totellushowtomakeadifferenceinother'slives.
Itwasacoldanddarkwinternight.AtowninWenchuanCountyoneoftheworst1areasintheMay12earthquake2008wasextremelyquietexceptthatthesoundof2cameoutofasmallhouse.Thiswasnotanordinaryhouse3acommunityKTVsetupbyayoungmaninlateSeptember. Eversinceitsopeningithasbecomeaplaceforlocalpeopletohealtheir4.Fromsentimental伤感的lovesongstohappypopsongssinginghasbecomepartofthelongandhardprocessofeasingpeoplebacktoa5life. TheyoungmanstillremembertheKTV'searlydays.Theroomwere6ontheopeningdayandmanypeoplechoseto7thewholenight.InthefollowingfourmonthstheKTVhas8nearlyallthelocalpeopleandthosefromnearby9shelters.Manycouldn'thelp10astheysangtheirfavoritesongs. Theyoungmanmaynothaveknowntheirnamesbuthe11theirsorrowandrelief.Heremembersoneyoungwomanwho12manytimeswithherfriends.Whenshefirstvisitedshesataloneinthecornerwithoutsayingawordstaying13allnight.ShefinallychoseaheartbreakinglovesongBeYourLoverandhercheekswere14intearsasshesang. Laterhelearnedthatthewomanwasingreat15becauseofherhusband'sdeath.TheyojngwomanwouldregularlyvisittheKTVandsingthesamelovesong.Everytimeshecried16. ButrecentlyIsaw17ofherandonthelasttwooccasionsshedidn'tsingthe18songherecallesIhopethatsheis19andsteppingoutoftheshadow. Theyoungmanhimselflosthisparentsintheearthquakesowhenpeopleexpressedtheiremothionshesatquietlyinacornerlisteningtotheir20andwatchingpeoplechangefromweaktostrong. Itwasdeepinearthquake﹣affectedWenchuanthatgrief﹣strickentownsfolkdiscoveredhowthesimpleactofsingingcouldhelphealtheirsouls. 1A.influenced B.swept C.beaten D.stricken 2A.joy B.shout C.music D.laughter 3A.so B.but C.or D.and 4A.souls B.injuries C.illnesses D.feelings 5A.normal B.peaceful C.simple D.hard 6A.occupied B.surrounded C.damaged D.packed 7A.perform B.stay C.relax D.work 8A.attracted B.satisfied C.entertained D.invited 9A.clean B.permanent C.temporary D.dirty 10A.trembling B.crying C.leaving D.dancing 11A.shared B.suffered C.removed D.expressed 12A.wentback B.walkedabout C.camearound D.triedout 13A.cautious B.excited C.ftightened D.sorrowful 14A.caught B.burnt C.bathed D.hidden 15A.danger B.vain C.trouble D.pain 16A.bitterly B.quietly C.sensitively D.regretfully 17A.much B.less C.more D.fewer 18A.same B.favorite C.lastest D.popular 19A.changing B.contuibuting C.sturggling D.recovering 20A.stories B.opinions C.songs D.experience
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. Nowadaysfewerstudentstakeexerciseduetovariousreasonandsomestudentsfallilleverynowandthenbecauseoftheyarenothealthyorstrongenough.Howeverweshouldtakeexerciseregularlytoimproveourhealth. FirstofalltakingPEclassesseriously.InPEclasseswecanbuildupourbodieswiththecarefulguidanceofPEteachers.Secondlyitisofgreatimportanttomakeitaroutinetoexerciseafterclassorduringbreaks.Inadditionitwasalsoagoodideatojoinasportsclubthatyouareinterested. AstheoldsayinggoThefirstwealthishealth.Let'sdomoreexercisetoliveabetterandhealthylife.
SpringFestivalconsistsofaseriesofcelebrations1startfromthe12thlunarmonthcustomarilycalledthemonthofLa.ThefirstisLabathe8thofLa.OnLabadayeveryhouseholdwillcookLabaporridgewhichis2mixofmanythings:ricesorghumredbeanssunflowerseedsetc.Labaporridgeisservednotonlyasadelicacy3asanofferinginhopeofgoodcropsnextyear. OnLabadayLabagarlicisprepared.4oneclasswhitegarlicisselectedandputinapotwithvinegarandthepotissealed.OnSpringFestivaldaywhenthepotisopenedyoufindthegarlic5turnfreshgreenandsoakedwithvinegar.Thereis6simplenosubstituteforittogowithjiaoziwhenthefamilysitaroundthetabletoenjoythefirstmealoftheyear. The23rdofLaiscelebratedastheMinorFestival.Fromthenonwardsthefestivalmoodbeginstopick7.Therearemoreandmorevendor'sstandsalongthestreetfilledwithagreat8varyofSpringFestivalgoodsthatcatchtheeye.TheMinorFestivalalsoknownastheKitchenGodDaywashighlightedonthe23rd.Asthelegend9goKitchenGodwastogoandreporttoJadeEmperor玉皇大帝inHeaven10hehadwitnessedonearthtodeterminefortunesormisfortunesofthehousehold.ThereforethehouseholdtookgreatcaretoworshipKitchenGodasbesttheycouldandnottooffendhiminanyevent.
假定你是校排球队队长李华.请写封邮件告知你的队友Chris球队近期将参加比赛内容包括: 1.比赛信息; 2.赛前准备; 3.表达期待. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
BigtobaccoiswhatthebossesofseverallargetechnologyfirmshavestartedcallingFacebook.Beingcomparedtothetobaccogiantsisfarfrompraisebutitisnottheonlywide﹣spreadanalogy比拟.AlowerblowisthesuggestionthatFacebookmaybecomelikeYahootheoncehigh﹣flyinginternetfirmthatfell. Evenayearagotheideawouldhavebeenunthinkable.ButsinceJanuaryFacebookhasbecometrappedinaseriesofmisjudgmentsandmissteps.ItbecameclearthatithaddonetoolittletostopRussianinterference干涉inAmerica'selectionin2016.Ithadtoadmitthatithadsharedthepersonaldataof90muserswithoutsidefirmswithoutpermission. ThecomparisontoYahooisimperfect.EvenatitspeakYahoo'sbusinesswasneveraslargeandprofitableasFacebook's.OneofthemainreasonsYahoodeclinedisbecauseitlostouttoapowerfulcompetitorGoogleinonlinesearch;MarissaMayeritsbossfrom2012untilitssaletoVerizonlastyearwasunabletorestoreadvertisers'oremployees'confidenceasusersleft. ButpeoplewhowatchedYahoo'sfallingseesimilarities.Executive主管turnoverwasaleadingindicatorofitsdecline;beforeMs.MayerwashiredYahoowentthroughfourchiefexecutivesinthreeyears.Mr.ZuckerbergwhocontrolsthemajorityofFacebook'svotingsharesisnotleavingbutmanytopexecutivesare.ThisyearseveralhaveannouncedtheirdeparturesincludingFacebook'schiefsecurityofficer. Whenadvertisers'faithinFacebookhasbeenshakenpoliticiansinWashingtonarerunningoutofpatiencewiththecompany.Lawmakers'inspectionofthefirmiscausingittobemorecautiousabouthowitusesdatafortargetingadvertisementsandaboutwhatinformationitmakesavailabletooutsiders. Mr.ZuckerbergandMs.SandbergareunderpressuretoprovetoemployeesandadvertisersthatFacebookisnotonlytrustworthybutworthyoftheirtimeandmoney.Iftheycannotdosoandthecompany'ssharepricecontinuesitsslideitispossiblethatMs.Sandbergwillbereplacedinthenextyear.Mr.ZuckerbergwilldoubtlesshavethoughtsaboutYahoo'ssorrytale. 1ForFacebookbeingcomparedtobigtobaccois. A.positive B.ambitious C.creative D.negative 2AccordingtotheauthorwhatdoesFacebookcurrentlyhaveincommonwiththefailedYahoo? A.Lettingoutusers'data. B.Beingdeepinfinancialcrisis. C.Leadersareleavingthecompany. D.Layingoffalargenumberofemployees. 3TheauthortriestosupporthisjudgmentaboutFacebookby. A.questioningitsmanagement B.usingevidencerelatedtoit C.analyzingitsfinancialdata D.listingitsadvantagesanddisadvantages 4Whatisthemainideaofthepassage? A.Facebookgetstrappedintrouble. B.Twocompaniesaredeepincrisis. C.HowtosaveFacebook. D.Faithismorevaluablethangold.
假定你是李华你校国际学生中心InternationalStudentCenter将在本周六举办一年一度的假日派对请给你的留学生朋友Jack写一封邀请信.主要内容包括: 1.排队时间地点; 2.派对活动内容; 3.期待他的参与. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯. .
Thisistheheart﹣warmingmomentwhenambulanceworkerstookapalliative保守疗法carepatienttothebeachwhilestillinherhospitalbedtofulfillherdyingwish. TheQueenslandAmbulanceServicepostedaphotoofaparamedic急救中心的工作人员calledGraemestandingbesideawomaninahospitalbedoverlookingthewateratHerveyBayacoastalcityinQueensland. HerveyBayOfficerinChargeHelenDonaldsonsaidthewoman'sdyingwishwastovisitthebeachagain. Acrewweretransportingapatienttothepalliativecareunitofthelocalhospitalandthepatientexpressedthatshejustwishedshecouldbeatthebeachagainshesaid. Aboveandbeyondthecrewtookasmalldiversion变道totheawesomebeachatHerveyBaytogivethepatientthisopportunity. Tearswereshedandthepatientfeltveryhappy. Sometimesitisnotthedrugstrainingskillssometimesallyouneedisempathy共情tomakeadifference. MsDonaldsonthankedparamedicsGraemeandDaniellefortheirgreatwork. Theposthascaughtanoverwhelmingamountofattentionattractingmorethan18000likesandanother5000commentsinfivehours. Thepostwasalsolitteredwithcommentsinsupportofthebeautifulgesture. Whatabeautifulyetsadstorybutonethathighlightseverythinggoodaboutourcommunityonewomansaid. Ohmygoodness!Whatanincrediblegiftyougavethispatient.Thestoryhaswarmedmyheartandbroughttearstomyeyes﹣soincrediblyproudasecondwomansaid. SpeakingtoDailyMailAustraliaonThursdayQAS'spokesmanMichaelAugustussaidtheservicewasblownawaybytheresponse. Itcostthemnothingbutfiveminutesoftheirtime.It'ssolovelythatareallysimpleactofkindnesssomethingthattheparamedicsjustdidmadethislady'sdayMr.Augustussaid. 1Whatdidtheambulanceworkersdoforthedyingwoman? A.Theyofferedtotakehertoapalliativecarehospitalatonce. B.Theypostedherphotoonlinetoappealtomorepeopletohelpher. C.Theyfulfilledthedyingwoman'swishtoseetheoceanonefinaltime. D.Theyraisedmorefundonlineforthetreatmentofthedyingwoman. 2Whatwordscanbeusedtodescribetheambulanceworkersinthepassage? A.Professionalbutcruel. B.Hardworkingandenergetic. C.Skillfulandgenerous. D.Sympatheticandconsiderate. 3Whereisthistexttakenfrom? A.Afairytale. B.Ascientificreport. C.Anewsreport. D.Afictitiousstory.
Increaseyourcreativity EverymonthIfacethesameproblem﹣howtowriteeducationalinformativeandhopefullyinterestingarticles.1.AtothertimesmymindgoesblankandIexperienceacreativeblock. Attimesweallfacecreativechallengesinlifefromdesigningwebsitestodecoratingourapartmentsbuttherearewaystoworkthroughcreativeslumps低潮. Daydream Foryearsothersmayhavetoldyoutostopdaydreaming.2.Daydreamingsometimeshelpsyoutakeamorecreativeapproachtoyourproblem. Behappy Somestudiessuggestthatapositivemoodencouragescreativitybecauseitincreasesactivityinthepartsofthebrainrelatedtodecision﹣makingandfeelings. 3Face﹣to﹣faceconversationswithfriendscanleadtocreativethinking. Takerisks Don'tletfearholdyouback.Youwon'tsucceedateverythingyoutry.Butwitheachneweffortyouwillbuildself﹣confidenceanddevelopnewskillsforthefuture. Limityouramusement Everyoneenjoysentertainment.4.Literatureandaudiobooksarebetterformsofamusementbecausetheyforceyoutouseyourimagination. Lookforinspiration Activitiessuchaslisteningtomusicgoingtomuseumsandtravellingallprovidesourcesofinspiration. Goofflineandgooutside Rememberhowmuchfunyouhadasachildrunningplayingandpretending?Yourimaginationsimplyranawaywithyou.5andcanhelpyougetbacksomeofthatcreativeenergyfromyourchildhood. A.Getsocial B.Makefriends C.Naturesettingsfiretheimagination D.Infactlettingyourmindrunbrieflycanactuallybehelpful E.Readingrelaxesthemindandencouragesyoutouseyourimagination F.SometimesIcanjustsitdownatmycomputerandthewordsjustflow G.ButwatchingTVforinstancerequireslittlethoughtandcanactuallydecreasecreativity
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