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每年6月6日是全国“爱眼日”．图中表示近视眼的是图 （选填“甲”或“乙”），近视眼应配戴 透镜制成的眼镜进行矫正．
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每年6月6日是全国爱眼日．如图中表示近视眼的是图选填甲或乙近视眼应佩戴选填凸或凹透镜制成的眼镜进行
今年6月6日是第十三届全国爱眼日主题为明亮眼睛迎奥运宣传口号有预防近视从今天开始预防青少年近视从一点
2013年6月6日是第十八届全国爱眼日主题是情系白内障患者共享和谐新世界1眼球好象一架照相机晶状体和
每年6月6日为世界爱眼日下列措施中不能预防近视眼的是
看书写字时控制眼睛与书本的距离
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坚持认真做眼睛保健操
看书写字光线越强越好
2008年6月6日是第十三届全国爱眼日主题为明亮眼睛迎奥运宣传口号有预防近视从今天开始预防青少年近视
2008年6月6日是第十三届全国爱眼日主题是明亮眼睛迎奥运1眼球好象一架照相机晶状体和角膜的共同作用
每年6月6日是全国爱眼日．图中表示近视眼的是图选填甲或乙近视眼应佩戴透镜制成的眼睛进行矫正．
6月6日为全国爱眼日今年的主题是预防近视珍爱光明下图中表示某二人看物体时的光路图要在视网膜上成清晰的
2010年6月6日是第十五届全国爱眼日某校为此举办了一场科学用眼知识讲座其中提到1预防近视眼的措施之
每年6月6日是全国爱眼日图中表示近视眼的是图选填甲或乙近视眼应佩戴透镜制成的眼睛进行矫正．现在有+
6月6日为全国爱眼日.目前青少年近视现象十分严重在下图中表示近视眼成像示意图的是应配戴镜制成的眼镜矫
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每年6月6日是全国爱眼日据统计我国中学生近视眼发病率超过50%．在图中表示近视眼成像示意图的是应配
每年6月6日是全国爱眼日．图中表示近视眼的是图选填甲或乙近视眼应配戴透镜制成的眼镜进行矫正．
每年6月6日是全国爱眼日．图中表示近视眼的是填甲或乙图近视眼应佩戴透镜制成的眼镜进行矫正．
每年6月6日是全国爱眼日今年爱眼日的主题是‘目’浴阳光预防近视近视眼的成像示意图是如图的图应该佩戴
每年6月6日是全国爱眼日．图中表示近视眼的是图选填甲或乙近视眼应配戴透镜制成的眼镜进行矫正．
每年6月6日是全国爱眼日其主题是关爱心灵窗户如果长时间就看手机玩电子游戏容易造成眼睛近视矫正近视眼
每年6月6日是全国爱眼日如图中表示近视眼的是图选填甲或乙近视眼应佩戴透镜制成的眼镜进行矫正．
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8分In1997IfoundmyselfinasituationIneverthoughtI'dbeinaloneandbeggingformoneyinNewYork.MyfatherhadbeenseparatedfromourfamilyandmymotherhadrecentlydiedfromcomplicationsrelatedtoAIDS.WhatIremembermostaboutsuchnightsislyingonthecoldmarblefloorandusingmybackpackforapillow.EventhoughIhadlostmyfamilyImadechoiceseverysingledaytoturnmylifearound.Therewasthehaven避风港forhomelessteenagerscalledtheDooranon﹣profitorganizationthatprovidedmewithguidancemedicalcareandfoodallofwhichkeptmegoingwhileIcompletedmyhomeworkintrainstationsandunderhallwaylights.PerhapsthemostsurprisinghelpthoughIdidnotseekout;itfoundme.TheNewYorkTimestoldmystory.IntheweeksthatfolloweddozensofstrangersreachedouttomefromallacrosstheUnitedStates.AtmyhighschoolIbeganreceivinghandwrittenlettersofencouragement.Strangersshowedupbearingclothesbooksandevenhugs.SincethearticlementionedIwasapplyingtoHarvardonewomanknittedablanketforme.Sheattachedthisnotetotheboxitwaspostedin'Itgetscoldinthosedorms.Mayyouwarmyourselfknowingthatpeoplecareaboutyou'.Withthehelpofthesepeoplemylifetodaybearsnoresemblanceatalltomylifethen.IgraduatednotonlyfromhighschoolbutalsofromHarvardUniversity.Beforethesepeople﹣someofthemnameless﹣Ijustdidn'trealizehowgoodpeoplecouldbe.ButnowIdoandIcansaythatthepeoplewhohelpedmehaveforeverchangedme.TheyarethereasonbehindmydecisiontojointheboardattheDoorsothatIcanbepartofasmallteamofpeopleopeningahighschoolforhomelessteenagers.TheyarethereasonIdedicatemylifetoopeningpathwaysforothers.AndtheyarethereasonItravelaroundtheworldhelpingpeopletransformtheirownlives.1Accordingtothepassagetheauthor.A.triedtochangeherlifeB.oftensleptmfriends'homesC.feltlonelybecauseofherillnessD.feltquitedesperateforherfather2WhatcanwelearnabouttheDoor?A.Itisanorganizationhelpinghomelessteenagers.B.Itisanorganizationseekingprofits.C.Itprovidesentertainmentforchildren.D.Itreportsthestoriesaboutthehomeless.3Whichofthefollowingisthecorrectordertodescribetheauthor'slife?a.Thenewspaperreportedherstory.b.ShegraduatedfromHarvardUniversity.c.Shesleptonthecoldflooratnight.d.ShejoinedthecommitteeattheDoor.e.Hermotherdiedfromtheillness.A.d→e→c→a→bB.e→c→d→a→bC.e→c→a→b→dD.b→c→d→e→a4Whatcanwelearnfromthelastparagraph?A.Patienceisavirtue.B.Lovecanbepassedon.C.Timewaitsfornoman.D.Honestyleadstosuccess.
1分Heworkshardandhealsohasasenseof责任
1分中国倡导的一带一路旨在鼓励更多的国家相互合作. China'sBeltandRoadInitiativeaimstoencouragemorecountriestowitheachother.
化学源于生活又服务于生活请按要求填空 ①自来水净化过程中常加入作消毒剂 ②冰箱中常用活性炭去除异味是利用其性 ③食盐溅落在火焰上火焰呈色 ④天然气的主要成分是 ⑤“即食快餐”夹层中生石灰和水反应时放热加热食物反应化学方程式为．
成语中体现化学变化是
1分让王鹏最烦心的是他的客人都跑到永惠的餐馆去了. botheredWangPengmostthathiscustomersallwenttoYongHui'srestaurant.
10分Therearemanygreatphysicalandmentalbenefitsofgettinginshape.1Ifyouwanttogetinshapebutdon'tliketoruneverydayyoucantrythefollowingeffectivewaystoloseweight.Fastwalks.Thespeedatwhichyouwalkisextremelyimportantforweightloss.Althoughwalkingfordistancecanhelptogetinshapefasterthespeedisstillnecessary.2Aimfor45minutestoanhourofwalkingfor5﹣6daysaweekandyouwillseetheresultsfaster.Relaxingwalks.Ifyouwanttorelaxyourmindandbodyaswellastogetinshapegoforalongwalktwiceaday.Walkingwillhelpyouburncaloriesfeelbetterandthinkclearer3.Multitaskingwalks.Whenyouhavebusyschedulesitcanbedifficulttofindtimetoreturnyourphonecalls.4InfactI'magainstthisbecauseyouwon'trelaxtotallyandclearyourmindinthisway.Butifyoudon'thavetimethismayhelpyou.5Ifyouaregoingtoloseweightbereadytogoforalongerwalkatleasttwiceaweek.I'msureyouarestrongandcanwalklonger.Trytoaddafewmoremilesandyouwillgetclosertoyourgoal.A.LongwalksB.SetagoaltoloseweightC.Toburnmorecaloriestrytowalkfaster.D.SomeofthephonecallsarequiteimportantE.OneofthemistogetahealthyandlongerlifeF.HoweveryoucanwalkanddothisatthesametimeG.Moreoverwalkinghelpstofightstressandimproveyourmood.
利用下列提供的仪器装置回答问题 ①仪器名称A为 ②小丽用双氧水和二氧化锰制取氧气时发现反应速率过快小丽思考后将所用仪器B改为该反应的化学方程式为若使用装置G收集氧气氧气应从填“a”或“b”端通入． ③小明选用A到G中仪器组装出实验室制取二氧化碳装置他所选仪器有填写一套即可反应的化学方程式为． ④小刚选用H装置放入锌粒和稀硫酸制取氢气H装置的优点是反应一段时间后他关闭活塞发现装置中固液无法分离原因可能为写出一种即可 ⑤小刚用制得的氢气还原氧化铜得到0.1mol铜则理论上参与反应的氢气的质量为根据化学方程式计算．
属于化学性质的是
有关实验现象描述错误的是
下列化学符号或符号中“2”的含义表述正确的是
10分Thecloseofthegardeningseasonisalwaysbitterbutsweet.Ihatesayinggoodbyetoallmyplantsandtradingthiscomfortablegreenworldforonethat'scoldandwhite.Buttherearealsoplentyofgoodthingsaboutautumn.Theweatheriscoolandthehumidityislow.Oncewe'vehadourfirstkillingfrostthepaceoftheharvestseasonisover.It'stimeforapplesandpotatoespumpkinsandmums.Andit'stimetogathertheseason'smostabundantcropleaves.ThelongerIgardenthegreatermyappreciationforthevalueofnaturalfertilizer.Andoneoftheverybestsourcesofnaturalfertilizerisautumnleaves.HereareafeweasywaysthatI'vefoundtoputleavestoworkinmygarden.Firstcutupasmanyofthemasyoucan.Cuttingoneleafintofiveortensmallerpiecesdoesseveralgoodthings.Ittakesupmuchlessspaceandincreasesthesurfaceareagivingmicrobesmanymoreplacestoworkwhichwillspeeduptherotofleaves.Itpreventstheleavesfrompackingtogetherintolayersthatwon'tletwaterorairin.ThenIputmostofthemintoplastictrashbagsinthebarnfornextspringwhenI'llusethemasmulch生根肥inmygardens.Intimetheleavesbecomesomethingcalledleafmold霉菌whichmakesplentyofmulch.What'smoreitdoeswondersforthesoilandIlikethelookofit.ByNovemberIaddtheseleavestotheworkingcompost堆肥pilethroughouttheyeartobalancethefoodleftoversandothermaterialsthatareusuallyofhighnitrogen.FormekeepingbusyisthebestwaytofendofftheblueswhichishowIsometimesfeelaswinterapproaches.1Whatisthetextmainlyabout?A.FunctionsoffallenleavesB.HowtoputfallenleavestoworkC.HowtospendtheautumnseasonD.Waystocuttheleavesintopieces2Whydoestheauthorfeelunhappyinautumn?A.TheweatheriscoolB.HehastogatherfallenleavesC.TheharvestseasonisoverD.Thegardenwillnotbefullofplants3Whatisthekeybenefitoffallenleavesaccordingtotheauthor?A.ToinspiretheauthorB.TotakeuplessspaceC.TobenaturalfertilizersD.Tobetheauthor'sfavorites.4Whichofthefollowingcanreplacetheunderlinedword'microbes'inParagraph3?A.ToolsB.CreaturesC.BacteriaD.Gardeners5Whatcanweinferfromthetext?A.LeafmoldisgoodforplantsgrowthB.TherearemanygoodthingsinautumnC.CuttingleavesuptakeupmorespaceD.Theauthoralwayskeepsbusyinwinter.
某小组同学利用如图2溶解度曲线和图1进行实验并完成下列问题 ①20℃时氯化钠的溶解度为． ②40℃时硝酸钾的溶解度氯化钠的溶解度用“＞”“＜”“＝”填空 ③A中溶液为60℃硝酸钾的溶液填“饱和”或“不饱和” ④B中溶液的质量为克 ⑤将D过滤下列有关所得晶体和溶液说法正确的是填字母． Ⅰ．析出的晶体中可能含有氯化钠 Ⅱ．所得溶液中一定含有硝酸钾和氯化钠 Ⅲ．C→D过程可以完全分离硝酸钾和氯化钠 Ⅳ．所得溶液一定是硝酸钾的饱和溶液
30分Asweknowitisimpossibletomakenomistakesallone'slife.MygrandpaNybakkenisno1.Severaldecadesagohemadeamistake﹣an2mistakethough.OnacoldSaturdayGrandpawasbuildingsomewoodencasesfortheclotheshis3wassendingtoanorphanage孤儿院inCongo.Onhiswaybackhomehe4intohisshirtpocketforhisglassesbuttheyweregone.Sohedrovebacktothechurch.Hissearchproved5.Whenhe6replayedhisearlieractionsherealizedwhathappened.Theglasseshadslippedoutofhispocketand7intooneofthecases.Hisnewglasseshaving8him﹩20wereheadingforCongothatmorning!Hehadtodrivehome9.Severalmonthslaterthedirectoroftheorphanagecametogiveareportatmygrandfather'schurchwhichGrandpaalsoattended.Thedirectorsaid'Imustthankyouforthe10yousentlastyear.Thebandits土匪hadjustsweptthroughtheorphanage11everythingincludingmyglasses.12Ihadthemoneytherewassimplynowayof13thebrokenpairofglasses.14notbeingabletoseewellIexperiencedheadacheseveryday.Thenyourcases15.Whenmystaffremovedthecoverstheyfoundapairofglasseslyingontop.'Thenwiththe16hecontinued'WhenItried17theglassesitwasasthoughtheyhadbeenmadejustforme!Itwasamazing!'Thepeoplelistened18forthemiraculousglasses.Butthedirectormusthave19theirchurchwithanothertheythought.Therewerenoglassesontheir20ofthingstobesentoverseas.ButGrandpawassittingquietlyinthebackwithtearsstreamingdownhisface.1A.similarity B.success C.luck D.exception2A.perfect B.foolish C.formal D.common3A.factory B.church C.family D.country4A.turned B.reached C.filled D.put5A.proper B.reasonable C.useless D.necessary6A.mentally B.physically C.softly D.directly7A.fallen B.jumped C.forced D.broken8A.offered B.spent C.paid D.cost9A.disappointed B.pleased C.nervous D.satisfied10A.cases B.clothes C.glasses D.wishes11A.cutting B.destroying C.defending D.recording12A.Unless B.Aslongas C.Until D.Eventhough13A.replacing B.selling C.wearing D.earning14A.Exceptfor B.Alongwith C.Ratherthan D.Asfor15A.disappeared B.flew C.arrived D.broken16A.preparation B.regret C.satisfaction D.wonder17A.out B.over C.for D.on18A.sorry B.happy C.bored D.stressed19A.confused B.connected C.combined D.compared20A.case B.order C.list D.search
1分后来人们开始在有充足的食物和水的地方定居下来. Latermanbegantowherethefoodandwaterwereplentiful.
在地壳中含量最多的元素是
1分Mydreamhouseisonesbygreentreesandbeautifulflowers.
“含氟牙膏”中的“氟”可以防止龋齿这里的“氟”指的是
1.5分在想到Tony即将被回收时Claire只想一个人静静. RealizingTonywouldberecycledClairejustwantedto.
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空气成分中体积分数约占21%的是
1分Shehasalreadytriedherbest.Pleasedon'tbetoo挑剔abouthim.
物质的俗名化学式一致的是
15分Americansbelievethattimeisa1limitresourcesotheytrytosaveandmanageit.peopledoalltheycan2squeezemoretimeoutoftheirlife.Businessmenoftencarry3notebookwiththescheduleofappointmentsanddeadlinesintheirpockets.ToAmericanspunctual守时means4showrespectforothers.Beingmorethantenminuteslateforanappointmentusually5callforanapologyoranexplanation.People6arerunninglatoftencallaheadtoletothersknowofthedelay.Americanlifestylesshowhowmuchpeoplerespectthetimeofothers.Whenpeopleplananeventtheyoftensetthetimeafewdaysorweeks7advance.Ifpeoplewanttocometoyourhouseforafriendlyvisittheywillusuallycallfirsttomakesureifitis8convenience.EvenAmericansadmitthatnoonecanmastertime.Timelikemoneyslipsso9easythroughourfingers.Andtimeliketheweatherisveryhardtopredict.Neverthelesstimeisoneofthemostprecious20giftinourlife.
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. IwasveryexcitedthatIcouldnotfallasleepinlastnight.YesterdaymorningIwenttoabiggardeningcompanyforainterview.WhenIwasalittlechildhelpingmygrandfathergrowflowerinthegardenwasmyfavorite.AllwhatIwantedtobewasagardener.WhenIgettothecompanyIfoundthereweremanypeoplewaitingtherebutIdidn'tknowwhetherIcouldgetthejob.WhilewaitedIhelpedtheworkerstheretoremovethefallentreesandcleartheroad.LuckyIwastheonlyonethatfinallygotthejobbecausethemanagerdecidedtogivethejobsomeonewhowashelpful.
根据反应3Fe+4H2OX+4H2推断X的化学式为
甲和乙在一定条件下反应生成丙和丁的微观示意图如图结论正确的是
1分Herourschooltotakepartinthecompetitionandallofuswereproudofhim.
如图是一套检验气体性质的实验装置向装置中持续通入气体X若打开活塞K只观察到紫色石蕊变红若关闭活塞K可观察到紫色石蕊试液变红澄清石灰水变浑浊．据此判断气体X和洗瓶内的液体Y可能是
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