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某中学举行英语演讲比赛，如图是七位评委为某位学生打出分数的茎叶图，去掉一个最高分和一个最低分，所剩数据的中位数和平均数分别为（ ）
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高一下学期数学《》真题及答案
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在校英语节演讲比赛中七位评委老师为某班选手打出的分数的茎叶图如图所示去掉一个最高分和一个最低分后所剩
如图是2012年某校举办激扬青春勇担责任演讲比赛上七位评委为某位选手打出的分数的茎叶图去掉一个最高分
85 87
84 86
84 85
85 86
假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcontest希望附近某大学的外
假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcontest希望附近某大学的外
假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcontest希望附近某大学的外
第=节书面表达满分25分注意在试题卷上作答无效假设你是育才中学学生会__李华你校将举办一次英语演讲比
假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcontest希望附近某大学的外
某中学举行英语演讲比赛如图是七位评委为某位学生打出分数的茎叶图去掉一个最高分和一个最低分所剩数据的
84，85
85，84
84，85.2
86，85
某校举行2015年元旦汇演七位评委为某班的小品打出的分数的茎叶统计图如图所示去掉一个最高分和一个最低
为了进一步增强中学生的安全意识提高自我保护能力某校开展了以安全为主题的英语演讲比赛请你根据以下要点提
某学校举行演讲比赛5位评委对某选手的打分如下单位分9.59.49.49.59.2则这5个分数的平均分
在一次演讲比赛中七位评委为某选手打出的分数的茎叶图如图所示去掉一个最高分和一个最低分后所剩数据的方差
第二节书面表达满分25分假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcont
如图是2011年海南中学十大歌手年度总决赛中七位评委为某位选手打出的分数的茎叶统计图去掉一个最高分和
84,4.84
84,1.6
85,1.6
85,4
假定你是重庆第一中学校学生会__李华你校将举办一次英语演讲比赛希望重庆大学外籍教师Brown女士来做
在校英语节演讲比赛中七位评委老师为某班选手打出的分数的茎叶图如图所示去掉一个最高分和一个最低分后所剩
右上图是2016年我校举办激扬青春勇担责任演讲比赛大赛上七位评委为某位选手打出的分数的茎叶图去掉一个
85;87
84; 86
84;85
85;86
假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcontest希望附近某大学的外
某年级举行校园演唱比赛七位评委为学生甲打出的演唱分数茎叶图如图所示去掉一个最高分和一个最低分后所剩数
假设你是育才中学学生会__李华你校将举办一次英语演讲比赛speechcontest希望附近某大学的外
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烃A中碳氢两种元素的质量比是245G具有浓郁的香味．它们之间的转化关系如下含有相同官能团的有机物通常具有相似的化学性质 请回答 1化合物B所含的官能团的名称是． 2D的结构简式是． 3C+F→G的化学方程式是． 4下列说法正确的是． A．在工业上A→B的过程可以获得汽油等轻质油 B．有机物C与D都能与金属钠反应C经氧化也可得到F C．可以用碳酸钠溶液鉴别EFG D．等质量的EG混合物无论以何比例混合完全燃烧耗氧量相同
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已知Ag+3Bg⇌2Cg．起始反应物为A和B物质的量之比为13且总物质的量不变在不同压强和温度下反应达到平衡时体系中C的物质的量分数如下表下列说法不正确的是
10分TheUNhasrecognizedthecontributionsofvolunteersonDec.5InternationalVolunteerDay.Herethefourthingsareofferedtoconsiderbeforetakingtheleapintooverseasvolunteering. Chooseyourorganizationcarefully 1volunteeringmaybeafundraisingmechanism筹资机制foradevelopmentproject.Forothersvolunteeringisfundamentaltotheirprogramsandthoseservingtakeonprofessionalrolesinlonger﹣termdevelopment. 2 Volunteerswanttohelpandmakeadifferencebutmostknowthisisn'tapurelyselflessact.Youwilllearnnewskillsbroadenyourhorizonsandcometobetterunderstandyourselfandtheworld.3Reflectonyourmotivations.Youwanttohelpreduceglobalpovertyorprotectthenaturalworldbutwhatelse?Haveyoualwayswantedtotravelbutnotasatourist?Workwithkids?Whenyouunderstandyourmotivationsyou'llbeinabetterpositiontochoosetheoptionthatisrightforyou. Workalongsidethelocalcommunity Oftentimestravelersvolunteerinisolation隔离fromthelocalcommunityinwhichtheyareworkingin.4Thisenablesyoutoensureyouarecommittingtoaprojectthatpromoteslongtermandsustainablechange. Avolunteertripisjustthebeginning 5Furtherignite点燃theglobalchangemakerinyoubytakingyourexperienceonestepfurtherwhenyoureturnhome.Spreadthemessageofyourtransformativeexperiencetoothershelpingtosparkthechangewithinthem. A.Andthat'sallOK. B.Knowwhyyou'regoing. C.Don'tassumeyouknowitall. D.Communitiesalwayswelcomevolunteers. E.Volunteertravelisalife﹣changingexperience. F.Someorganizationsrequireyoutopayyourownwayandoftenincludeafee. G.Makesuretotravelwithorganizationsthathavestrongpartnershipswithlocalcommunities.
工业上可利用CO2来制备清洁液体颜料甲醇有关化学反应如下 反应ⅠCO2g+3H2g⇌CH3OHg+H2Og△H1＝﹣49.6kJ•mol﹣1 反应ⅡCO2g+H2g⇌H2Og+COg△H2＝+41kJ•mol﹣1 1反应Ⅰ在填“低温”或“高温”下可自发反应． 2有利于提高上述反应甲醇平衡产率的条件是． A．高温__B．低温低压C．高温低压D．低温__ 3在Cu﹣ZnO/ZrO2催化下CO2和H2混合气体体积比13总物质的量amol进行反应测得CO2转化率CH3OH和CO选择性随温度压强变化情况分别如图所示选择性转化的CO2中生成CH3OH或CO的百分比． ①下列说法正确的是． A．压强可影响产物的选择性 B．CO2平衡转化率随温度升高先增大后减小 C．由图1可知反应的最佳温度为220℃左右 D．及时分离出甲醇和水以及使氢气和二氧化碳循环使用可提高原料利用率 ②250℃时反应Ⅰ和Ⅱ达到平衡平衡时容器体积为VLCO2转化率为25%CH3OH和CO选择性均为50%则该温度下反应Ⅱ的平衡常数为． ③分析图2中CO选择性下降的原因．
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7.5分It'salmost2a.m.atLightninginaBottleamusicfestivalinBradleyCalif.ThelastsongofthenightistheCleanUpSongbyMr.Nigel&Friends.Abruptlyheadsbowandbacksbendaspeoplepickupemptycupsdirtyforksandfestivalguidesanddropthemintocans. ItworkslaughsJesseShannonmarketingdirectorofDoLaBtheorganizationthathostsLightninginaBottle.Itremindspeopleinaninterestingandcutewaynottoleaveeverythingonthedancefloor.TheCleanUpSonghasbeenatraditionatLightninginaBottlesincethebeginning.It'sjustoneoftheinnovativewaysmusicfestivalsaretryingtolessentheirimpactontheenvironment. Outdoorfestivalshavebeencalledenvironmentaldisasters.A2006analysisconductedbyBurningMantheannualgatheringinthenorthwesternNevadadesertshowedthattheeventproduced91millionpoundsofcarbonemissions排放or1400poundsperperson.Theseeventsliterallyproducetonsofwasteanythingfrom60tonsatLightninginaBottlein2015toalmost550tonsatBonnarooin2017. BurningManhasastrongLeaveNoTracepolicy.LightninginaBottlehoststalksfromclimateactivists积极分子.OutsidesLandsMusicandArtsFestivalinSanFranciscohasworkedwithCleanVibestoresponsiblymanageitswaste.In2016itdiverted使转向91percentofallwastefromlandfill垃圾填埋池byencouragingrecyclingandreuse. Festivalshopetheycanaffectpeople'sattitudesandawarenessinsteadofsimplyreducingtheirownenvironmentaleffects.Peopleatafestivalareexploringanalternativewayoflivingandit'sagreatopportunitytoreassessyourrelationshiptowaste.Mr.Shannonsays.PeoplehavebeengatheringforaslongastherehavebeenpeopleShannonsays.Soit'snotsomethingwearegoingtostopdoing.It'smorewhatwecandotoreducetheimpactsofthesegatheringsandatthesametimehaveapositiveeffect.Weareconfidentwearehelpingpeople'smindchange.Westillhavealongwaytogo. 1WhatisuniqueaboutLightninginaBottle? A.Itlastsallnight. B.Itissong﹣themed. C.Itmakespeoplemovedandbow. D.Itislikelytobenefitnature. 2WhatdoestheunderlinedworditinParagraph4referto? A.LeaveNoTracepolicy. B.LightninginaBottle. C.OutsidesLandsMusicandArtsFestival. D.CleanVibes. 3WhatdoesMr.Shannon'sattitudestowardsthefestivalsmentionedabove? A.neutral B.indifferent C.bright D.effortless
30分Itwastheclosingtimeofthemall.Buttherewasanhour'sworktodocleaningmakingmenothavetimetohavedinnersoIwas1andexhausted.Butitwouldbelimitedhoursbeforethealarm2.MyhusbandPaul'sbusinesstookahuge3.Ihadajobanddidmy4formycollegeclasstoo.Ihadtostudydaysinschoolandworknightsatthemall.Wewerelackofmoney.AtChristmasnooneincludingMarieour8﹣year﹣olddaughterwantedtowakeupseeingan5tree. Everyonewasworkinghardforthe6.HowIhopedto7myjobandobtaina8.I9aboutMarie.IntheeveningPaulhaddroppedMarieandIoffatthe10.RememberyoucoulddoshoppingthisnightIsaid.I'llhavemymoney.Seeyoulater. AfteralongtimeIwasoffworkandsawMariecarryingabagandsmiling.Shefinishedher11anhourbefore.She12thatIdidn'thavetimefordinnersosheboughtmesome13andwaitedforme14. WhileeatingIwastoldthatIwasherheroandshe15everythingIwasdoingforthefamily.Shetoldmethatwhenshewas16ofdoinghomeworkshethoughtaboutmyhardwork.Sherememberedtohavehopeforlife. I17heronherfaceweeping.Tomorrowthealarmwouldstillringat5:00am.Thebillswouldstillbewaiting.Therewouldbemoretoughdays18.I19wasreadytofacethemwithPaulandMarie.Thingswouldgetbetterandallinallourdaughterkeptgivingusconstant20andcourage. 1A.thirsty B.delighted C.tired D.starving 2A.wentoff B.wentout C.wentaway D.wentthrough 3A.success B.change C.boom D.hit 4A.housework B.homework C.efforts D.places 5A.full B.empty C.broken D.bare 6A.family B.husband C.daughter D.society 7A.continue B.change C.quit D.complain 8A.shopping B.job C.relaxation D.degree 9A.worried B.brought C.gave D.talked 10A.supermarket B.library C.carecenter D.mall 11A.time B.job C.shopping D.degree 12A.believed B.figured C.told D.explained 13A.food B.makeup C.drink D.gifts 14A.ontime B.atalltimes C.intime D.atonetime 15A.complained B.hated C.admired D.ignored 16A.sure B.aware C.proud D.tired 17A.hugged B.licked C.kissed D.stroked 18A.ahead B.principle C.identity D.standard 19A.later B.however C.likewise D.once 20A.sorrow B.excitement C.hope D.failure
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元素XYZ和Q在周期表中的位置如图所示其中元素Q位于第四周期X的最高正价和最低负价之和为0下列说法不正确的是
25分假定你是李华在某英文网站上看到一家国际文化机构招聘中学生暑期志愿者.请根据以下提示用英语写封自荐信.要点包括: 1.表达兴趣; 2.阐述自己的优势; 3.希望得到回复. 注意: 1.词数100左右开头和结尾已给出不计人总词数; 2.可以适当增加细节以使行文连贯. DearSir/Madam YoursSincerely LiHua
6分HolidaysHolidayNewsVacancies空位nowandintheschoolholidaysatacountryhotelinDevon.Thiscomfortablefriendlyhome﹣from﹣homeliesnearthebeautifulquietcountrysidebutjustadriveawayfromthesea.Thefoodissimplebutgood.Childrenandpetsarewelcome.Reducedpricesforlowseason.TheSnowdoniaCenterTheSnowdoniaCenterforyoungmountainclimbershasamountainclimbinglesson.Thebeginners'costsare￡57foraweekincludingfoodandrooms.Equipmentisincludedexceptwalkingshoeswhichcanbehiredatalowcost.Youmustbeingoodhealthandpreparedtogothroughaperiodofbodyexercises.Thiscouldbethebeginningofalifetimeofmountainclimbingadventure.TheWorldSeaTripofaLifetimeOurWorldSeaTripof2019willbeunlikeanyholidayyouhaveeverbeenonbefore.Insteadofonehotelafteranotherwithallitspackingandunpackingwaitingandtravelingyoujustgotobedinonecountryandwakeupinanother.Onboardtheshipyouwillbewelltakencareof.Everymealwillbefirst﹣classandeverycabinlikeyourhome.Duringthetripyoucanrestondeck甲板enjoyyourselfinthegameroomsandintheeveningdancetoourmusicalteamandwatchourwonderfulplay.Youwillvisitalltheplacesmostpeopleonlydreamabout﹣fromAcapulcoandHawaiitoTokyoandHongKong.Forafewthousandpoundsallyou'veeverhopedforcanbeyours.1Whatcanyoudoifyouliketogoonholidayswithpets?A.ChoosetheholidayinDevon.B.GototheSnowdoniaCentreC.JointheWorldSeaTripof2008D.VisitAcapulcoandHawaii2InwhatwayistheSnowdoniaCentredifferentfromtheothertwoholidays?A.Itprovideschancesoffamilygatherings.B.Itprovidescustomerswithgoodfood.C.Itoffersasportlesson.D.Itofferscomfortableroom.3WhatisspecialabouttheWorldSeaTripof2019?A.Youcanhavefreemealsondeckeveryday.B.Youcansleeponashipandtourmanyplaces.C.Youwillhavechancestowatchandactinaplay.D.Youhavetodoyourownpackingandunpacking.
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下列说法不正确的是
7.5分RaynorWinnandherhusbandMothbecamehomelessowingtotheirwronginvestment.Theirsavingshadbeenuseduptopaythedebts.What'sworseMothwasdiagnosedwithaseveredisease.Therewasnocureonlyanodyne止痛药.FailingtofindanyotherwayoutMothdecidedtomakeawalkingjourneytomakethebestofhislastlifewithhiswife. Thiswasalongjourneyofunaccustomedhardshipandsurprisingrecovery.WhenleavinghomeRaynorandMothhadjust£320inthebank.Theyplannedtokeepthebudgetlowbylivingonboilednoodleswithfewbettertreats. WildcampingisillegalinEngland.ToavoidbeingcaughttheWinnshadtogettheirtentuplateandpackeditawayearlyinthemorning.TheWinnssoondiscoveredthatdailyhikingintheir50sisalottougherthantheyrememberitwasintheir20s.Raynorachedalloveranddesiredabath.Mothmeanwhileafteraninitialstrugglefoundhissymptomswerestrangelyrelievedbytheirdailytiringjourney. Finallythecouplefoundthattheirbodiesturnedforthebetterwithre﹣foundstrongmuscles.Ourhairwasfriedandfallingoutnailsbrokenclothesworntoathreadbutwewerealive.DuringthejourneyRaynorbeganacareerasawriter.ShewritesHomelessnesshadtakeneverymaterial物质上的thingfrommeandleftmetornbareanemptypageattheendofapartlywrittenbook.Ithadalsogivenmeachoiceeithertoleavethatpageblankortokeepwritingthestorywithhope.IchosehopeandIanticipatethatabrilliantfutureisaroundthecorner. 1WhichofthefollowingstatementsabouttheWinnsisRIGHT? A.TheWinnsbecamehomelessduetoaseveredisease. B.Theymadethejourneytograspthelastcouple'stime. C.Theysparednoefforttosavemoneybynoteatinganythingbetter. D.DuringthejourneytheWinnskeepworkingouttoreducethepainthediseasebrought. 2WhichoftheorderabouttheeventsisRIGHT? a.discoveredthedisease b.startedwriting c.becamehomeless d.madethejourney A.cabd B.cadb C.acbd D.acdb 3Whatisthebesttitleofthisarticle? A.Apainfulhomelessnessanddisease B.Ajourneyinspiringtowrite C.Aspeciallifeanodyne D.Ajourneytocurediseaseandthemind
8分Theworldeconomyhasrunintoabrickwall.Despitecountlesswarningsinrecentyearsabouttheneedtodealwithapotentialhungercrisisinpoorcountriesandanenergycrisisworldwideworldleadersfailedtothinkahead.Theresultisaglobalfoodcrisis.Wheatcornandricepriceshavemorethandoubledinthepasttwoyears.Andoilpriceshaveincreasedmorethanthreetimessincethestartof2004.Thesefood﹣priceincreasescombinedwithincreasingenergycostswillslowifnotstopeconomicgrowthinmanypartsoftheworldandwillevenaffectpoliticalstability.Practicalsolutionstotheseproblemsdoexistbutwe'llhavetostartthinkingaheadandactingglobally. Herearethreestepstoeasethecurrentfoodcrisisandavoidthepotentialforaglobalcrisis.ThefirstistopromotethedramaticsuccessofMalawiacountryinsouthernAfricawhichthreeyearsagoestablishedaspecialfundtohelpitsfarmersgetfertilizerandseedswithhighproductivity.Malawi'sharvestdoubledafterjustoneyear.AninternationalfundbasedontheMalawimodelwouldcostamere$10perpersonannuallyintherichworldor﹩10billionaltogether. SecondtheU.S.andEuropeshouldabandontheirpoliciesofpayingpartlyforthechangeoffoodintobiofuels.TheU.S.governmentgivesfarmersataxpayer﹣financedpaymentof51centspergallonofethanol乙醇changedfromcorn.Theremaybeacaseforbiofuelsproducedonlandsthatdonotproducefoods﹣treecropsgrassesandwoodproducts﹣butthere'snocaseforthegovernmenttopaytoputtheworld'sdinnerintothegastank. Thirdweurgentlyneedtoweather﹣prooftheworld'scropsassoonandaseffectivelyaspossible.Forapoorfarmersometimessomethingassimpleasafarmpond﹣whichcollectsrainwatertobeusedindryweather﹣canmakethedifferencebetweenagoodharvestandabadone.TheworldhasalreadycommittedtoestablishingaClimateAdaptationFundtohelppoorregionsclimate﹣proofvitaleconomicactivitiessuchasfoodproductionandhealthcarebuthasnotyetacteduponthepromise. 1AninternationalfundbasedontheMalawimodelwould. A.costeachofthedevelopedcountries﹩10billionperyear B.aimtodoubletheharvestinsouthernAfricancountriesinayear C.decreasethefoodpricesaswellastheenergyprices D.givepoorfarmersaccesstofertilizerandhighlyproductiveseeds 2Withthesecondsteptheauthorexpressestheideathat. A.itisnotwisetochangefoodcropsintogas B.itismisleadingtoputtreecropsintothegastank C.weshouldgetalternativeformsoffuelinanyway D.biofuelsshouldbedevelopedonalargescale 3WhichofthefollowingisTrueaccordingtothepassage? A.Arain﹣collectingpondisasimplesafeguardagainstdryweather. B.AClimateAdaptationFundhasbeenestablishedtohelpthepoor. C.Theworldhasmadeaseriouspromisetobuildfarmponds. D.Itmakesagreatdifferencewhetherwedevelopfoodproductsornot. 4Inthepassagetheauthorcallsonusto. A.slowdownbutnottostopeconomic. B.developtreecropsgrassesandfoodproducts C.achieveeconomicgrowthandpoliticalstability D.actnowsoastorelievetheglobalfoodshortage
下列说法正确的是
8分Sprintusershopingtotakeadvantageofthecompany'scoming5Gnetworknowhaveamonthtolookforwardto:May. AttheMWCtradeshowinBarcelonaSprintannouncedMondaythatitwillturnonitsnext﹣generationwirelessnetworkinMaywithcustomersinChicagoAtlantaDallasandKansasCityplannedtobethefirsttogetaccesstothe5Gservice. Thecompanyplanstolaunch启动5GinHoustonLosAngelesNewYorkCityPhoenixandWashingtonduringthefirsthalfof2019. It'sunclearhowextensivetheinitialcoveragewillbeineachofthelaunchcities.SprintsaysthattheNewYorklaunchwillbefocusedonthenearly30squaremilescoveringMidtownandlowerManhattanwhiletheDallaslaunchwillcoverapproximately230squaremilescoveringthegreaterDallasFortWorthareasuggestingthatsomecitieswillbebettercoveredthanothers. Inadditiontoannouncingitsfirst5GcitiesSprintalsodisplayedanewdevice装置fromHTCcalledtheHTC5GHub.UnliketheLGphonethe5GHubisdesignedtobeplacedinsideyourhomeasanalternativetobroadbandfunctioningasamobilehotspotthatallowsforupto20devicestoconnectandtapintoSprint's5Gnetwork.With5G'sabilitytoofferfasterspeedsandlowerdelaysSprintsaysthisdevicecanbeusedfornotjuststreaming4KcontenttoaTVorconnectingtotheInternetbutalsoforplayinggamesonline. ThedevicealsohasaGigabitEthernet千兆以太网portforpluggingindevicesaswellasa5﹣inchscreen.AswiththeLGphonehowevernoexactpricingorreleasedatewasannouncedbeyondavaguethisspring. ThisHubislikea‘SwissArmyKnife'withmultipletoolsthatwillquicklymakeitvitalanduniversalforconnectedhomesandsmallbusinessesSprintCEOMichelCombessaidinanewsrelease.Itusesthespeedofourupcoming5Gnetworktodrivecontentsharinggamingentertainmentandmore. 1WhatcanwelearnabouttheSprint's5Glaunching? A.ItwillfirstbelaunchedinBarcelona. B.Itneedsafewmonthstobeready. C.Itwillfirststartwithafewcities. D.Itwillmeetwithsomedisapproval. 2Whatisthe5GHubdesignedtodo? A.Getdevicesconnectedoutdoors. B.Serveasamobilehotspot. C.FollowtheLGphone. D.TaketheplaceofTVsets. 3Whatdoestheunderlinedworditrefertointhelastparagraph? A.The5GHub. B.TheSwissArmyKnife. C.TheLGphone. D.The5Gnetwork. 4WhatdoesMichelCombesthinkofthe5GHub? A.Itisveryimportantforpromotingbusinessco﹣operations. B.ItisbecomingpopularwiththeSwissArmy. C.Itisveryaccessibletocustomersintermsoftheprice. D.Itissatisfactoryforitsdifferentfunctions.
15分Iwon'tcallmyselfthemostaccomplishedpersonwhenitcomesto1holdchopsticks.InfactI'mprettysurethatmytechniquelooksclumsyattimes.Itendtohold2Iinthemiddlemorebeginnerthanexpert. StillsinceIeatalmosteverymealwiththeeatingutensil器皿ofchoiceinChinait'snotuncommonforanewfriendoracquaintancetocometoasimple3concludeafterobservingmethatmyChinesehusbandJunmust4showmehowtousethem. Theyarewrong.I'veusedchopstickseversinceIwasateenageratimewhenmysisterandmotherwerebothfondofChinesecuisineandintroducedme5manynewdishesalongwiththe6preferutensilsinChina.Wealwayskeptbamboochopsticksalongwithour7knifeforksandspoonsreadyforwheneverwehappenedtohaveChinesefoodfordinner.Itwasmyclosestfamily8observedmyfirstmistakesImadeinusingchopsticks. PlusIlivedovertwoyearsinChinabeforeJunandIstarteddatingandI9expecttousechopsticksinalmosteveryrestaurantstandandbar.Trustmewhenyou'rehungryyoufigureoutprettyfastwhatittakestodown咽下10mealwiththeseutensils.
设NA为阿伏加德罗常数的值下列说法正确的是
10分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:在错的词下画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. LastweekItakepartintheCulturalExchangeWeekbutenjoyedmyselfinEngland.IvisitedthecitymuseumandseveralplaceofinterestwhichmademehavebetterunderstandingoftheEnglishsocietycultureandhistory. What'smoreIwasluckilyenoughtomeetmypenfriendTomthere.Istayedathishome.AndI'llneverforgetthedayswhenwespenttogether.WhenIleftEnglandheofferedtomeadictionaryasagift.It'sofgreathelpformetolearningEnglish.IwillmakefulluseofthemandlearnEnglishwell. IhopeTomwillcometoChinawhenit'sconvenienceforhim!
实验室如下图的装置模拟工业过程制取硫代硫酸钠夹持仪器和加热仪器均省略．其反应原理为2Na2S+Na2CO3+4SO23Na2S2O3+CO2 请回答 1下列说法不正确的是． A．装置A的烧瓶中的试剂应是Na2SO3固体 B．提高C处水浴加热的温度能加快反应速率同时也能增大原料的利用率 C．装置E的主要作用是吸收CO2尾气 D．装置B的作用之一是观察SO2的生成速率该处锥形瓶中可选用浓硫酸或饱和NaHSO3溶液 2反应结束后C中溶液中会含有少量Na2SO4杂质请解释其生成原因．
25分假设你叫李华你的美国笔友Joe对中国新农村建设中正在实施的厕所革命很感兴趣.因此他写信向你咨询.请你给他写一封回信就相关问题作一番简单的回答.内容包括: 1.什么是厕所革命; 2.厕所革命的意义; 3.具体措施有哪些. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯. 3.信的开头已给出不计入总同数. 参考词汇:厕所革命toiletrevolution改造transform排水drain DearJoe I'msogladtohearfromyouagainaftersomanydays.
下列实验能达到目的是
向恒温恒容密闭容器中充入1molX和2molY发生反应4Xg+2Yg⇌3Zg下列选项表明反应一定已达平衡状态的是
30分VickyHarjothegirlsittingnexttomeismybestfriendinhighschool.Sheis1andstraightforwardsoIcansharemyjoysandsorrowwithher.2I'mnotafraidofbeingstuckina3situationasIknowthatshewillalwaysbetheretocomfortme. WhatpleasesmemostisthatsheandIboth4ofgoingtothesameuniversityaftergraduation﹣BostonUniversity.IbelievethatIhaveagood5ofLiterature.Howeveritisupsettingthat6IalwaysgetgoodgradesinLiteratureIcan'tperformwellinothersubjectslikebiologyandmath.7Ihavehertoaccompanymethroughthis8time. Istillhavevivid9ofthedaywhenthemidtermexamresults10out.AsIheldtheschoolreportmyheartstartedto11fasterandmyhandsgotsweaty.MyGoodness!Whycouldn'tImakeanyprogressinbiologyandmath?I'ma12!StuckindesperationIheldmyheadinmyhandswhiletears13downmyface. Ididn'tknowhowmuchtimehadgone14whenIfeltapersonbymyside.ThenIhearda15voiceinmyears:Feelingbetternow?It'shightimewetalkedaboutthenextstep.LeavemealonepleaseIcried.That'sOKshereplied.Butdoyouknow16aneaglefliesintheclearbluesky?Doyouknowit17somedifficulttimesfirst? Shewasright.Weallhavepreciousopportunitiesto18thesweetnessandbitternessoflifeandit'sallpartsof19life.Herwordsimpressedmedeeply.Shehasencouragedmeto20mydreameverystepoftheway.Thankyoumyangel天使. 1A.generous B.honest C.reliable D.confident 2A.What'smore B.However C.Otherwise D.What'sworse 3A.pleasant B.desperate C.scary D.hopeful 4A.remind B.conduct C.adore D.dream 5A.control B.grasp C.idea D.influence 6A.unless B.asif C.evenif D.as 7A.Unluckily B.Fortunately C.Naturally D.Surprisingly 8A.happy B.precious C.explicit D.tough 9A.memories B.descriptions C.realities D.purposes 10A.called B.figured C.came D.carried 11A.beat B.rise C.struck D.work 12A.failure B.teenager C.success D.senior 13A.pulled B.broke C.streamed D.took 14A.through B.out C.by D.over 15A.sad B.soft C.strange D.sharp 16A.how B.why C.whether D.where 17A.forgets B.witnesses C.skips D.experiences 18A.remember B.taste C.appreciate D.convey 19A.real B.great C.different D.cozy 20A.keepupwith B.makeupfor C.holdonto D.liveupto
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