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甲、乙两个不透明的盒子中分别装有三张卡片，甲盒子中的三张卡片上分别标有数字1，-2，3，乙盒子中的三张卡片上分别标有数字2，-3，4，每张卡片除数字不同外其余均相同．小明分别从甲、乙两个盒子中随机抽...
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有五张除字不同其余都相同的卡片分别放在甲乙两盒子中已知甲盒子有三张分别写有北京奥字样乙盒子有两张分别
在一个不透明的盒子中装有三张卡片分别标有数字123这些卡片除数字不同外其余均相同小明从盒子里随机抽
在一个不透明的盒子中装有三张卡片分别标有数字123这些卡片除数字不同外其余均相同从盒子中随机抽取一
在一个不透明的盒子中放有四张分别写有数字1234的红色卡片和三张分别写有数字123的蓝色卡片卡片除颜
一个不透明的盒子中放有四张分别写有数字1234的红色卡片和三张分别写有数字123的蓝色卡片卡片除颜色
在一个不透明的盒子中装有三张卡片分别标有数字123这些卡片除数字不同外其余均相同．小吉从盒子中随机抽
现有两个不透明的盒子其中一个装有标号分别为12的两张卡片另一个装有标号分别为123的三张卡片卡片除标
在一个不透明的盒子中放有四张分别写有数字1234的红色卡片和三张分别写有数字123的蓝色卡片卡片除颜
取三张形状大小一样质地完全的相同卡片在三张卡片上分别写上李明王强孙伟这三个同学的名字然后将三张卡片放
现有两个不透明的盒子其中一个装有标号分别为12的两张卡片另一个装有标号分别为123的三张卡片卡片除标
在一个不透明的盒子中装有三张卡片分别标有数字123这些卡片除数字不同外其余均相同小明从盒子里随机抽
实验探究甲乙两个不透明的纸盒中分别装有形状大小和质地完全相同的两__三张卡片.甲盒中的两张卡片上分别
有甲乙两个不透明的盒子甲盒子中装有3张卡片卡片上分别写着3cm7cm9cm乙盒子中装有4张卡片卡片上
一个不透明的盒子中有三张卡片卡片上面分别标有数字每张卡片除数字不同外其他都相同.小明先从盒子中随机抽
在一个不透明的盒子中装有三张卡片分别标有数字123这些卡片除数字不同外其余均相同从盒子中随机抽取一
在一个不透明的盒子中装有三张卡片分别标有数字-112这些卡片除数字不同外其余均相同．洗匀后小红从盒
实验操作甲乙两个不透明的纸盒中分别装有形状大小质地完全相同的两__三张卡片甲盒中两张卡片上分别标有数
有甲乙两个不透明的盒子甲盒子中装有3张卡片卡片上分别写着3cm7cm9cm乙盒子中装有4张卡片卡片上
在一个不透明的盒子中放有四张分别写有数字1234的红色卡片和三张分别写有数字123的蓝色卡片卡片除颜
现有两个不透明的盒子其中一个装有标号分别为12的两张卡片另一个装有标号分别为123的三张卡片卡片除
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10分阅读短文从A﹣E五个句子中选择正确选项还原到文中使短文内容完整正确. A.Anditencouragesyoungpeopletobemoreconfident.B.Musictouchesourheartsandshortens缩短thedistanceC.JayChoudoesmostofthesingingpartwhileKobeplaysapartofarapper说唱者.D.AllthemoneyfromthedownloadswillgotoProjectHope.E.That'sasongwrittenbyJayChouwhosefavoritesportisbasketball. 96betweenpeopleofdifferentcountries.ThesuperstarJayChouhascooperatedwiththeAmericanNBAstarKobeBryanttocreateasongnamedTheHeavenandEarthChallenge.97Itexpressestheloveforbasketball.98JayChouhaslearnedmuchfromKobe'ssportsspirit.Inthesong99Peoplecandownloadtheringtone铃声ofthesongfromtheInternet.100whichaimstoimproveeducationalenvironmentinpoorareasinChina. 96. 97. 98. 99. 100.
5分Therearealotofschoolrulesaroundtheworld.ForexampleinAustraliaCanadaJapanandtheUnitedStatesstudentshavetowearuniformsandtheyarenotallowedtowearearrings. SomeschoolsinJapanandothercountrieshaverulesabouthair.Forexamplestudentsarenotallowedtochangethecoloroftheirhair.IntheUnitedStatesboyscannothavetheirhairgrowlong. ForsafetyatsomeUSschoolsstudentsmusthaveapairofindoorshoesatschooleveryday.Thismakessurestudentswon'tfalloveronthewetfloorsandkeepstheschoolsclean. GumchewingisnotallowedinmanyUSschoolbuildingsasitisdifficulttocleanup.Andifstudentschewguminclasstheymaynotpaymuchattentiontotheirstudies. Inmostforeigncountriesschoolstudentsareallowedtoworkpart﹣time.ButdifferentlyJapaneseschoolstudentsarenotallowedtoworkpart﹣timeorchangethecoloroftheirhair. 41.Whichcountriesshouldstudentsnotbeallowedtowearearringsin A.EnglandandJapan. B.AustraliaandJapan. C.CanadaandChina D.TheUSAandFrance. 42.ArestudentsallowedtochangethecoloroftheirhairinJapan A.Yestheyaren't. B.Notheyare. C.Yestheyare. D.Notheyaren't 43.WhymuststudentshaveapairofindoorshoesatschooleverydayatsomeUSschools A.Thismakesstudentsexercisemoreeasily. B.Thismakesstudentswon'tfalloveronthewetfloors. C.Thiskeepstheschoolsclean. D.Thiskeepstheschoolscleanandmakesstudentssafe. 44.Whatmayhappenifstudentschewguminclass A.Itisdifficulttocleanup. B.Studentswillfalloverintheclassroom. C.Studentsmaynotpaymuchattentiontotheirstudies. D.Theteacherswillbeveryangry. 45.Whatshouldn'tthestudentsbeallowedtodoinJapan A.Theyaren'tallowedtochewgum. B.Theyaren'tallowedtowearuniforms. C.Theyarenotallowedtoworkpart﹣timeorchangethecoloroftheirhair. D.Theyarenotallowedtoeatintheclassroom.
下列各组离子在溶液中能大量共存并形成无色透明溶液的是
绿茶中的单宁酸具有清热解毒抗癌等功效其化学式为C76H52O46．下列关于单宁酸的说法正确的是
10分在下面的空白处填入适当的话语话语可以是句子短语或词 ABobwhatareyoudoingB61.Theletterisaboutbadhabits. AWhatdoyoumean BIseesomepeoplethrowlitteraround.Andsomeoftenwastewater.Youknowwaterisveryimportanttous.AYouareright.62 BTotheTVstation.Ihopetheycancallonpeopletoprotectourenvironment AThenwhatshouldwedotoprotectourenvironment BI'dliketogotothePeople'sParkwithmyfriendsthisSaturday.63 AYesI'mfree.64BWe'regoingtocollectrubbishthere. AGoodidea!I'dliketojoinyou.65 BWe'llmeetat8o'clockatthegateofthepark.Seeyouthen!ASeeyou. 61. 62. 63. 64. 65.
15分个人的成长离不开他人的支持.请结合下面的提示词以PeopleWhoHelpMe为题写一篇80词左右的短文.分别谈谈老师家人及朋友曾在哪些方面给予你关心和帮助你将怎样回报他们. 要求1.条理清楚书写工整句式规范标点符号和大小写使用正确. ＝2.短文中不能出现真实的人名地名.文章开头已给出不计入单词总数. ＝3.提示词语careforknowledgeencouragesupportdifficultyinthefuturestudyharder提示词不必全部用上.PeopleWhoHelpme DuringtheseyearsIhavegotlotsofhelpfrommyparentsteachersandfriends..
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2分珍爱自己远离毒品.Becareofourselvesanddrugs.
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为及时发现燃气泄漏常在燃气中加入少量有特殊气味的乙硫醇C2H5SH乙硫醇也可以充分燃烧化学方程式为2C2H5SH+9O2aCO2+2X+6H2OX是氧化物．下列说法不正确的是
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1分youhurryupyou'llbelateforschool A.unless B.as C.if D.until
把XY两种金属分别放入另外两种金属ZM的盐溶液中实验结果如下表其中“/”表示金属与盐 溶液不发生反应“√”表示金属与盐溶液能发生反应． 上述四种金属的活动性顺序由强到弱的是
人类的生存与发展离不开化学． 1生活中常把榨好的蔬菜汁放到面粉中做成蔬菜馒头这种馒头提供的主要营养物质是淀粉和． 2铁是应用最广泛的金属．喷漆能防止铁生锈原因是工业炼铁时一氧化碳和磁铁矿 主要成分是四氧化三铁发生的主要反应的化学方程式为． 3生活中硬水软化的常用方法是． 4__是工业上冶炼黄金的重要原料工业上生产__的化学方程式为2Na+2C+2X＝2NaCN+ 3H2X的化学式为该气体能使湿润的红色石蕊试纸变． 5配制农药波尔多液的盐是填名称请用化学方程式解释其不能用铁桶盛装的原因 该反应观察到的现象是．
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6分Mostbeesarebrownhairy多毛的and8to22millimeterslong.Beesarealargefamily.Over25000kindshavebeenfound.73.Amongallofthemhoneybeesarethemostcommon. Honeybeesalwaysliveingroupscalledhives蜂群.Eachhivehasaqueendrones雄蜂andworkers工蜂.Likeahumansocietyeachbeeinahiveknowsitsownjob. 74.Tocollectapoundofhoneyabouthalfakilogrammeabeemayhavetoflyalongway. Sometimesitiseguivalentto相当于twicearoundtheworld.75.Beeshavetovisitmorethan10000flowerstomakeapoundofhoney. 73. 74. 75..
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小红同学发现上个月做实验用的氢氧化钠溶液忘记了盖瓶盖他对该溶液是否变质及变质程度产生了兴趣于是他和同学一起对其进行探究． 【提出问题】氢氧化钠是否变质及变质的程度如何 【猜想与假设】 小丽猜想没有变质只含有氢氧化钠小明猜想全部变质只含有碳酸钠． 小红的猜想部分变质含有 氢氧化钠在空气中变质的化学方程式是． 【实验探究】 小丽取待测氢氧化钠溶液于试管中滴入几滴酚酞试液酚酞试液变红小丽说氢氧化钠没有变质小红认为她的结论不正确其理由是． 请你验证小红的猜想成立并完成实验报告． 【拓展提升】除去部分变质的氢氧化钠溶液中的杂质方法是．用化学方程式表示
5分WhatareyougoingtodoifyouareinaburninghouseHowwillyouescapeDoyouknowhowtosaveyourselfPleasereadthefollowingpassage. Escapingafireisaseriousmatter.Knowingwhattododuringafirecansaveyourself.Itisimportanttoknowthewaysyoucanuseandtoshowthemtoeveryoneinthefamilysuchasstairways楼梯andfireescapesbutnotlifts. Fromthelowerfloorsofthebuildingsescapingthroughwindowsispossiblelearnthebestwayofleavingthroughwindowswiththeleastchanceofseriousinjury伤害. Thesecondfloorwindowisusuallynotveryhighfromtheground.Anaverage普通的personhangingbythefinger﹣tips手指尖willhaveadropofaboutsixfeettotheground.Itisabouttheheightofanaverageman.Ofcourseitissafertojumpashortwaythantostayinaburningbuilding. Windowsarealsousefulwhenyouarewaitingforhelp.Besuretokeepthedoorclosed.Orsmokeandfiremaybedrawn向某方向移动intotheroom.Keepyourheadlowatthewindowtobesureyougetfreshairratherthansmokethatmayhaveleaked泄露intotheroom. Onasecondorthirdfloorthebestwindowsforescapearethosewhichopenontoaroof屋顶.Fromtheroofapersoncandroptothegroundmoresafely.Droppingontocement水泥mightendininjury.Bushesandgrasscanhelptobreakafall. 51.Itisimportantto. A.knowthewaystoescapeafire B.putoutafireinaburninghouse C.jumpoutofaburninghouse D.keepthedoorclosed 52.Itispossibletoescapethroughthewindows.. A.ifyouarestrongenough B.iftherearesomebushesontheground C.ifyouliveonalowerfloor D.ifyouhavealongrope 53.Whichofthefollowingwaysofescapingisnotright. A.Youcanescapethroughstairways B.usealifttocomedownatonce C.Escapethroughthewindowswhichopenontoaroof D.Youcanchoosefineescapes 54.Keepyourheadlowatthewindowsothatifthebuildingisonfire A.youcangetfreshair B.youcancallforhelp C.youcaneasilyjumpoff D.youcanbeseenfirst 55.Thebesttitleforthepassageis. A.Escapingthroughthewindows B.SaveYourselffromABurningHouse C.Knowledgeonfire D.WaitingforHelp.
10分Sometimespeoplecomeintoyourlifeandyouknowthattheyaretheretoteachyoualessonortohelpyouunderstandwhoyouareorwhoyouwanttobecome. Youneverknowthesepeoplewhomaybeaclassmateaneighbourorafriend﹣butwhenyoulockyoureyesonthemyouknowatthatverymomenttheywillinfluenceyourlifeinsomeways. Sometimesthingsthathappentoyoumayseemunpleasantpainfulorfrustratingatfirst.Butinanotherwayyoufindthatwithoutgettingoverthosedifficultiesyouwouldhaveneverrealizedyourabilitystrengthorwillpower意志力. Thepeopleyoumeetandthesuccessyougethelptocreatewhoyouareandwhoyoubecome.Eventhebadexperiencescanbelearnedfrom.Infacttheyaresometimesthemostimportantones. Ifsomeonelovesyougivelovebacktotheminthewayyoucannotonlybecausetheyloveyoubutbecauseinawaytheyareteachingyoutoloveandhowtoopenyourheartandeyestothings. Ifsomeonehurtsyouorbreaksyourheartforgive原谅themfortheyhavehelpedyoulearnabouttrustandtheimportanceofbeingcarefulofpeoplearound. Self﹣confidenceisnecessarytoaperson.Ifyou'renotconfidentitwillbehardforotherstobelieveinyou. Learnalessoninlifeeachdayyoulive! 71.Whocaninfluenceyourlifeinsomeways 72.Areunpleasantthingsgoodforyou 73.Whyarebadexperiencesveryimportanttoyou 74.Whatshouldyoudoifsomebodyhurtsyou 75.Whatdoesthewritertrytotellus.
下列做法正确的是
雷雨天气时氮气可逐步转化为硝酸盐．其关键反应为N2+O22NO．该反应属于
如图为某反应的部分微观示意图其中不同的球代表不同种原子．下列说法正确的是
1分Whereyou A.havebeento B.havegoneto C.havebeen D.havegone
15分WhenyouwereyoungwhorodeyouaroundonthebackofhisbikeWho21soccerandflewkites22withyouintheparkWhohelpedyouwithyourfirstdifficultmathproblemWhotaughtyouthedifferencesbetween23Yourdad.Nowitisyourturntodosomethingforhim.ThisSundayJune16itisFather'sDay.Sowhynotdo24specialtothankyourdadforallhisencouragementandsupport支持 TheideaofFather'sDaycame25anAmericanladycalledSonoraSmartDoddin1909.Shewantedan26daytohonorherfather.Heraisedsixchildrenbyhimself27hiswifediedduringthebirthoftheirsixthchild.Doddthoughtthereneededtobeadaytohonorhercourageous勇敢的selflessandlovingdad.HerfatherwasbornonJune1928shechosetoholdthefirstFather'sDaycelebrationonhisbirthdayin1910.In1924USPresidentCalvinCoolidgelikedtheideaofanationalFather'sDay.Finallyin1966thethirdSundayinJunewasdeclared宣布Father'sDay. Therearemanywaystoshowyourloveandthanks. Sendhimagreetingcard.Usuallyfathersprefercardsthatarenot29emo﹣ tional使人动感情的.Thereforeperhapschooseonethat30himlaugh. Asmallpresentsuchasaphotoofyourfamily31aspecialwallet32makehimfeellikeaking. Sendhim33andtheredroseisthe34giftintheofficeduringFather'sDay. Ifhehasa35coverhisdesktop桌面withwordslikeIloveyoudad! 21.A.played B.bought C.sold D.gave 22.A.quietly B.sadly C.happily D.loudly 23.A.oldandyoung B.bigandsmall C.rightandwrong D.longandshort 24.A.nothing B.something C.everything D.anything 25.A.in B.out C.over D.from 26.A.easy B.unusual C.strange D.attractive 27.A.when B.until C.after D.before 28.A.so B.because C.until D.if 29.A.much B.also C.many D.too 30.A.willmake B.ismaking C.hasmade D.ismade 31.A.but B.or C.yet D.and 32.A.should B.can C.must D.need 33.A.clothes B.books C.flowers D.computers 34.A.morepopular B.muchpopular C.mostpopular D.popularest 35.A.watch B.computer C.car D.bike.
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