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镁、铝、铁及其化合物在生产、生活中有着广泛的应用 I：实验室采用MgCl2、AlCl3的混合溶液与过量氨水反应制备MgAl2O4，主要流程如下： （1）已知25℃时Ksp[Mg（OH）2]＝1...
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高三下学期化学《》真题及答案
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碳及碳的化合物在生产生活中有着广泛的应用请你回答下列问题1在生活中用活性炭除去冰箱中的异味这是利用了
碳家族是化学世界中最庞大的家族碳及其化合物在生产生活中有着广泛应用1右图为元素周期表中有关碳元素的信
铁及其化合物在生活生产中有着广泛应用．工业上以赤铁矿为原料炼铁的主要反应的化学方程式是电子工业上用
化学在生产和日常生活中有着重要的应用下列叙述正确的是
氧化铝的熔点很低，不能用于制作耐高温材料
光化学烟雾与大量排放碳氢化合物和氮氧化合物有关
硅酸钠的俗名为玻璃，可用于制备硅胶和木材防火剂
Na、S.、C.分别在氧气中点燃均可能得到两种不同的氧化物
混合物分离的方法在生产生活和科学实验中有着广泛的应用下列做法中应用了结晶方法的是
）除去水中的泥沙 （
）分离豆浆和豆渣 （
）除去混在铜粉中的铁粉 （
）用海水晒盐
朱砂属于
铁化合物
镁化合物
汞化合物
砷化合物
钙化合物
硬水中含有较多的是
锌．镁化合物
铁．铝化合物
可溶性钙．镁化合物
难溶性钙．镁化合物
3.00分硬水中溶解有较多的
钠的化合物
镁的化合物
铝的化合物
铁的化合物
碳家族是化学世界中最庞大的家族碳及其化合物在生产生活中有着广泛应用1右图为元素周期表中有关碳元素的信
许多物质在生产生活中有广泛的用途请根据下列要求回答各问1镁在空气中燃烧发出耀眼的白光可用于制做照明弹
1人类在生产和生活中广泛使用金属.①用铜丝做电线是利用了铜的性.②铁是化学性质比较活泼的金属它在自然
金属材料在生产生活中有着广泛的用途1钢铁制品的锈蚀主要是铁与空气中的_共同作用的结果2如图是铝的原子
化学在生产和日常生活中有着重要的作用下列叙述正确的是
氧化铝的熔点很低，不能用于制作耐高温材料
光化学烟雾与大量排放碳氢化合物和氮氧化合物有关
无水乙醇用作医用消毒剂效果更好
Na、S、C分别在氧气中燃烧均可得到两种不同的氧化物
电磁感应现象在生产生活及科学研究中有着广泛的应用请列举其中利用电磁感应原理工作的器具:①______
铁及其合金在生产生活中应用广泛下列说法中正确的是
.生铁中含有碳，抗腐蚀能力比纯铁强
.铁与盐溶液所发生的反应都是置换反应
.铁与稀硫酸反应，铁与浓硫酸不能反应
.工业上可以用铝热反应的方法制取少量的铁
化学在生产和日常生活中有着重要的应用下列说法不正确的是
仅由非金属元素组成的化合物可以是离子化合物
普通陶瓷、玻璃、水泥是使用量大的材料，其生产都采用含硅元素的原料
MgO的熔点很高，可用于制作耐高温材料
根据冷的浓硫酸可以用铝质容器储存的事实，说明常温下铝不会与浓硫酸发生反应
金属在生产生活中有着广泛的用途.1指出金属铁的一个性质及其对应的用途性质对应用途.2黄铜是铜锌合金其
下列关于铝及其化合物的说法正确的是
铝制品在生活中被广泛使用，说明铝是一种不活泼的金属
氧化铝的熔点很高，是一种较好的耐火材料
Al(OH)
3
碱性很强，故可用于治疗胃酸过多
铝是地壳中含量最多的元素
碳及其化合物与人类关系密切在生活中应用广泛下列含碳元素的物质①碳酸钠②甲烷③一氧化碳④碳酸属于有机物
铁及其合金在生产生活中应用广泛．下列关于铁及其合金的说法中正确的是
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1分Whenyouaretravellingbringamapbecauseithelpyou. A.can't B.mustn't C.usedto D.may
TopicHowcanwehelptoprotecttheenvironment? Time800﹣930a.m.tomorrow PlaceIntheschoolhall TouchwithMissBrown.J.G@imooc.com. Whattotalkabout Ourearthisintrouble!Almosteverydaywehearaboutproblemsoftheenvironmentthunderstormhaze雾霾andClimatechange.Infacthumans人类broughttheseproblems.Weworryaboutthefutureoftheearth.Wemustfindwaystosolvetheseproblemsortheearthcan'tsupporthumanlife. Manypeoplevolunteertocleanupparksorplanttrees.Infacteachofusneedstodosomethingtoprotecttheenvironment.Butwhatcanwedo?ComeandlistentoMr.Green'sreporttomorrow. 1.Howlongwillthereportbe? A.Anhour. B.90minutes. C.Halfanhour. D.70minutes. 2.Whatisthereportabout? A.Problemsoftheenvironment. B.Humansbroughttheenvironmenproblems. C.Thewaystoprotecttheenvironment. D.Everyoneshouldworkasavolunteer. 3.TheunderlinedwordsupportmeansinChinese A.维持 B.破坏 C.安抚 D.降低 4.Whowillgivethespecialreport? A.MissBrown. B.Mr.Brown. C.MissGreen. D.Mr.Green. 5.Howmanyproblemsoftheenvironmentarementionedinthepassage? A.Two. B.Three. C.Four. D.Five.
Don'tworryaboutmeIamoldenoughtomyself. A.looklike B.lookfor C.lookup D.lookafter
1分Ienjoyaboutgreatpeople'slivesbecauseIalwayslearnalotfromthemandtheyencouragemetomarchon. A.read B.toread C.reading D.reads
1分UncleWanggaveallhissavingstotheHopeSchoolhehimselfwasnotrich. A.because B.asif C.though D.or
youBobisabletocompletetheworkontime.Itistoohard. A.Notonlybutalso B.Bothand C.Eithernor D.Neithernor
Nohurrywehavetimetogetreadyforthetrip. A.afew B.many C.little D.plentyof
8分InwhatcasewouldTangDynastypoetLIBaiandWesternheroKingArthermeetandfightagainsteachother?IfnotinyourdreamthenperhapsinagamecalledKingofGlory王者荣耀.CreatebyChinesecompanyTencentKingofGlorywasoneofthemostpopularMOBAgameinChinain2017.KingofGloryhasover200millionpayersaboutoneineverysevenChinesepeopleplaysthegameand55millionofthemplayiteverydayaccordingtoJiguanaChineseanalytics分析company. Ithasover60characterstounlockandplayasyouprogresseachwiththeirownspecialstylesandabilities.Thecharacterscoverdifferenttimesandcountries.SomearerealhistoricalfigureslikeLiBai.Somearenot.Playersusethemtofightagainsteachotherorteamuptofight.Thewinnerscanreachhigherranks. Howeveralongwithhispopularityproblemshavealsocome.Notallreviewsofthegamesaregood.Somethinkthegamecanconfusechildrenbyusingincorrecthistoricalreferences参照.forexamplethepoetLiBaiisdescribedasakillerJingKethemanwhotriedtokillthefirstemperorofChinaisagirlinthegame.Morepeopleworryaboutchildrenplayingthegametoomuchandspendingtoomuchmoneyonit.Playerbelowtheageof19accountfor25.7percentofthegame'splayers.Apieceofnewinwhicha17﹣year﹣oldboyhadaheartproblemafterplayingthegamefor40hourshasalsocreateoppositeviews. TodealwiththisTencentaddedatimelimittothegametopreventkidsfromplayingtoomuch.AsofJuly42017childrenunder12yearsoldcanplaythegameforonlyonehouradaywhileusersbetween12to18gettwohours.Thosewhotrytoplaybeyondthetimelimitwillbelockedoutofthegame. 1.WhichofthefollowingisTRUEaboutKingofGlory? A.Itisthemostpopularonlinegameintheworld B.Itoffers60charactersforplayerstochoosefrom C.Allofthecharactersarerealhistoricalfigures DPlayersfightagainsteachotherorteamuptofight 2.Theunderlinedsentencetellusthat. A.KingofGloryiseasilydesignedforanyonetoplay B.KingofGloryisapopulargametoplay C.Moreplayershavebeeninvitedtoplaythegame D.KindofGloryisdesignedonlyforChineseplayers 3.WhydidTencentaddatimelimittothegame? A.Becausechildrenareverycurious B.Childrenspendtoomuchtimeplayingthegame C.Thegameusesincorrecthistoricalreferences D.Childrendon'thaveenoughtimetoplaythegame 4.Wheremightyoufindthiskindofstories? A.Inanewspaper B.Inatravelguidebook C.Inabookreview D.Inagameinstruction
八达岭野生动物园老虎伤人事件一度引起民众的广泛关注血淋淋的事件再次告诫我们遵守规则的重要性.假如你是一名保定城市文明志愿者请用英语写一篇70词左右的文章向游客宣传动物园旅游的注意事项倡导安全文明游园. 提示1Whatshouldwedotoprotectourselvesinthezoo? 2Whatshouldwedotokeeptheanimalsinthezoosafeandhealthy? 3Whatshouldwedotokeepthezooclean? 参考词汇keepawayfromtakephotosfeedthrowkeep…clean. 要求1文章包括所有提示内容可适当发挥. 2开头和结尾已给出不计入总词数. HelloeveryoneWelcometoBaodingZoo.Tohaveawonderfultripwemustfollowsomerules. Enjoyyourselvesandhaveaninterestingday.
10分 InrecentyearsfourChinesetechnologicalinnovationsstandoutintheworld.Theyare1asfournewgreatinventionsofmodernChina. High﹣speedtrains Chinacreateditsfirsthigh﹣speedrailwaylinein2008.Sincethenthenumberofpassengertripshasincreased2over30percenteveryyear.Bytheendof2016morethan5billiontripshadbeentakenonChina'shigh﹣speedtrains.Chinaiscurrentlyworkingonthenew3oftrainsthatwillhaveatopspeedof400kilometersperhour.By2020one﹣fifthofthecountry's150000kmrailwaynetworkwillbeusedbyhigh﹣speedtrains.ThisnetworkwillconnectmorethanpercentofmajorcitiesacrossChina. Mobilepayment Mobilepaymentis4Chinaintoacashlesssocietywhichisledbythird﹣partpaymentcompanieslikeAlipay.Forexampleinsteadofplayingbycashcustomersnowpayforgoods5byputtingashortpassworldintotheAlipayappon6mobilephone.Userscanalsopaytheirwaterand7billsthroughit.Alipayalsoallowsuserstobuythingsoninternationalwebsites. Sharebikes Sharedbikes8startedinWesterncountries.ButChinahassurprisedtheworldwithhowquicklyithaswidelyusedsharedbikes.ThesebikeallowuserstopickuporparksabikeonthestreetthroughGPSandsmartphoneapps.To9abikeyoujustneedtoscanaQRcode二维码onasharedbikewithasmartphoneappandtherideaway.Afteryoufinishridingyoucanparkitatavailableareaslockitandpayforyourridethroughmobilepaymentservice. Onlineshopping Witharound751millioninternetusersChinahaslongbeentheworld's10andfastest﹣growingonlineshoppingmarket.Onlineshoppingnowaccountsfor15.5percentoftotalretailsalesinChina.Thankstolowercostsandfewerlicensingrequirementsit'seasierforsellertoopenanonlineshopinChina.Italsohelpedtocreatejobs. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Rainforestscover6%oftheearth'ssurface.TherearerainforestsinmanypartsoftheworldbutthebiggestrainforestsareinSouthAmericaAfricaandSouthEastAsia.Therearen'tanyrainforestsinEuropeorNorthAmerica. Thousandsofanimalsliveintherainforests.Therearemanybeautifulbirdsinsectsandreptiles爬行动物intherainforests.Therearealsothousandsofdifferentplants.Itisalwayshotinarainforestandthegroundisalwayswet.Itisalsodark. Therainforestsareveryimportanttous.Thetreesandotherplantsintherainforestshelptomaketheairthatwebreathe.Theygiveuswoodrubber橡胶fruitsandmanyofourmedicines. Butinmanyplacestherainforestsareindanger.ForexamplemanyyearsagotherewasalargerainforestinJava爪哇岛.Therewerethousandsofdifferentplantsandanimalsinitbutnowthereisnothing.Peoplecutdownthetreestogrowrice.ManyanimalswenttootherpartsofJavabutsomeanimalsdisappearedforever.Thesamethingishappeningnowinmanypartsoftheworld. Therainforestsareindanger.Soweshouldcareabouttheprotectionofthem. 1.Wherearethebiggestrainforests? A.Inmanypartsoftheworld. B.InNorthAmericaEuropeandSouthwestAsia. C.InEuropeandNorthAmerica D.InSouthAmericaAfricaandSouthEastAsia 2.liveintherainforests. A.Thousandsofanimals. B.Thousandsofdifferentplants. C.Alargenumberofanimalsandplants. D.Somefruitsandmanymedicines. 3.WhydidtherainforestdisappearinJava? A.Becausepeoplecutdownthetrees. B.BecausesomeanimalswenttootherpartsofJava. C.Itisalwayshotintherainforest. D.It'sdarkandwetintherainforest. 4.Whatisthemainideaofthefourthparagraph? A.TherewasalargerainforestinJava. B.Therainforestsareindanger. C.Someanimalsdisappeared. D.Therainforestsareimportant. 5.Whatdoesthewriterwanttotellusinthispassage? A.Rainforestscover6%oftheearth'ssurface. B.Thetreesandotherplantsintherainforestshelptomaketheairthatwebreathe. C.AlargerainforestinJavadisappeared. D.Weshouldprotecttherainforests.
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helpputmakefamilyheavy BencouldhearstrongwindsoutsidehishomeinAlabama.Blackcloudsweremakingtheskyverydark.Withnolightoutsideitfeltlikemidnight.ThenewsonTVreportedthata1rainstormwasinthearea. Everyoneintheneighborhoodwasbusy.Ben'sdadwas2piecesofwoodoverthewindowswhilehismomwasmakingsuretheflashlightsandradiowereworking.Shealsoputsomecandlesandmatchesonthetable. Benwashelpinghismom3dinnerwhentherainbegantobeatheavilyagainstthewindows.Afterdinnertheytriedtoplayacardgamebutitwashardtohavefunwithaseriousstormhappeningoutside. Bencouldnotsleepatfirst.Hefinallyfellasleepwhenthewindwasdyingdownataround300a.m.Whenhewokeupthesunwasrising.Hewentoutsidewithhis4andfoundtheneighborhoodinamess.Fallentreesbrokenwindowsandrubbishwereeverywhere.Theyjoinedtheneighborsto5cleanuptheneighborhoodtogether.Althoughthestormbrokemanythingsapartitbroughtfamiliesandneighborsclosertogether. 1. 2. 3. 4. 5.
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Thissummerourfamilywentona1v.Wewenttothenationalpark.Itwasinthe2northpartofthecity.We3atheparkat600inthemorning.Theairwasfreshandwesawgreentreeseverywhere.Ifeellike4climbuparocktopickflowers5mymotherstoppedme.She6wmenottodothat.Shesaiditwas7dangeranditalsowasharmfultothenature.Wesaw8hundredofdifferentplantsandwelearned9lotaboutthenatureas10good. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Lifeislikeajourney.Onthewaywehavehappinessandsadness.1It'snotdifficultforanyonearoundyoutotellhisregrets.Whenwegetolderwelookbackandwishthatwehadmadebetterchoices.Howcanweavoidfutureregrets? Makebetterplans Ifyoustarttodosomethingyou'dbettermakeaplanbeforedoingit.Theearlierthebetter.Youwillknowwhatcomesfirstandwhatcomeslast.2.Ifchangeshappenyoucanhavemoretimetodealwiththem. Liveamoreactivelife Youcangoaroundmoreoften.Moreoutdooractivitiescankeepyourelaxedandactive.Youalsoneedtobekind.Thankyoucanbringasmiletosomeone'sface.3. Findtherightfriend Afriendmaymakeyourlifeandheorshecanbreakyourlifeaswell.Soyouneedtothinktwicewhenyouchooseafriend.Goodfriendswillalwaysmakeyourideasbetter.4.Thatlittlehelpmaygetyougoodresults. Neverfearfailure Everybodyfails.Eventhegreatestpersonfailed.5.Wemusttakefailureasachancetolearnandimproveourselves. Lifeisgood.Wedon'thavetoliveinourpastbutwedohopethatwecanplanbetterlivebetterandworkbetterwhenwehavethechancetodoso. A.Weshouldnotfearfailurebecausefailureisnottheendoftheroad B.Learntosaysorryanddon'tbeangrywithothers C.Sometimesitisalsofullofregrets D.You'llalsoknowwhatyoushoulddoandwhatyoushouldn'tdo E.Whenyougetintotroubleaskothersforhelp 1. 2. 3. 4. 5.
5分AHeyJack!Icametoyourhouseyesterdayafternoonbutyouweren'tin. BSorrySarah！1 AWasitabirthdayparty? BNoitwasaschool﹣leavers'party.Wearegoingtofinishourmiddleschoollifesoon. ASoweare.Howaretheparty? BItwasgreatbutIfeelsadbecauseIdon'twanttoleavemydearteachersandclassmates. AThat'strue.2.Bythewaywhat'syourplanaftergraduation? BIt'shardtosay.3 AThat'sagreatidea.What'stheproblemthen? BMyparentsdon'tagree.Theywantmetogotoagoodhighschoolandthenenteragoodcollege. A4 BYesbutIonlywanttoplayfootball. A5You'dbetterhaveafurthertalkwithyourparents. A.Ihaven'tdecidedyet B.Butyoucanstillplayfootballincollegecan'tyou? C.Iwashavingapartyatschoolatthattime D.Ithinkyoushouldworkhardatyoulessons E.Afterallyouhavestayedtogetherfornearlythreeyeas F.I'dliketobeafootballplayersbecausefootballismyhobby G.That'sreallyaproblem. 1. 2. 3. 4. 5.
6分ThewordformilkinGermanisMilch.InFrenchitislait.Usuallyyoudon'tfindthesamewordsineverylanguage.ButthereisanexceptionforthewordOK. ItisthemostfrequentlyspokenexpressionintheworldOKwasfirstintroducedtotheworldintheBostonMorningPostonMar.231839.Itreado.k.allkorrectwhichmeansallcorrect.AlthoughitwasonlyajokeatthattimelaterpeoplebeganmarkingOKondocumentsandusingOKonthetelegramtosaythatallwaswell.Todaypeoplecrosscountriesusethisexpressioneveryday.Howabout2o'clock?OK?OKOKthen.ThewordOKiseasytosayandwriteandclearenoughtobeunderstood.Besidesitoffersneutrality中立thatotherwordsdon'thave.Ifyousaysomethingisgreatsomepeoplemaysayitisn't.ButwithOKeveryonegenerallyagrees. Arethereanyotherwordsthatcancrosscountriesandcultures? Huhisanothercommonlyusedword.Researchersfoundthathuhmeanssurpriseordisbeliefin10differentlanguages.Sometimespeopleneedawordtoexpressmanymeaningsatonce.Forexamplesometimesthereisaproblemofunderstandingoryouwanttoasksomebodyforareaction.Sayinghuhisshortandeasytosayandhear.Alsoyoudon'tneedtolearnthiswordjustlikeyoudon'tneedtolearntocryorlaugh.Huhjustcomesoutnaturally. Otherwidelyusedwordsincludemamawhichisconsideredtobetheeasiestwordforbabiestopronounce.Don'tforgetgameover.Itisnotonlyusedbysportsfansbutalsotodescribetheendofaneventinreallife. 1.WhichoffollowingisNottrueaboutOK?. A.Itwasajokeforallcorrectatfirst. B.Itwasfirstusedonthetelegraph C.Itiseasytobeunderstand D.It'snotastrongwordtoshowyouopinion 2.HuhiswidelyusedNOTbecause A.itcanexpressmanymeaningsatonce B.it'seasytosayandhear C.youdon'tneedtolearnit D.it'stheeasiestworldforustopronounce 3.What'sprobablythebesttitleforthestory?. A.Wordswithoutborders B.Themostpopularwords C.Wordsweoftenuse D.Mostwidelyusedwords
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