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写出下列反应的化学方程式： （1）酒精在空气中完全燃烧： ． （2）探究铜、银的金属活动性： ．
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写出下列反应的化学方程式并将反应的基本类型填写在括号内1红磷在空气中燃烧2水的电解3细铁丝在氧气中燃
请按照要求写出下列反应的化学方程式1硫在氧气中燃烧_________________________
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10分Babieshavethecharmtomeltanybody'sheartinstantlynooneescapesthetwinklingeyesortheinnocentsmile.Justtheirpresencewillcheeryouupmakeyouforgetyourworriesandtemptyoutoindulgeintotheirworld.1ThoughIdon'thaveanyanswertothequestionIwonderastowhatmakestheiraurasodesirable.AndIthinkthereissomethingwecanlearnfromtheyoungones. ForgiveandForget Babiescanlaughandgigglealldaybecausetheydon'tkeephatredagainstanyone.2 Doyouthinkthey'veconstructedanevilplanagainstyoubecauseyourefusedthemcandylasttime?Probablynotlifemovedonandsodidthey.Sowhydoweholdontoourpastandrefusetoletgooftheemotionalbaggage?Doesitdousanygoodexceptpreventusfromlaughingtothefullest? 3 Endlessquestionsofyoungkidscansometimesbeenoughtodraintheadultmind.Theyarealwaysbusywonderinghowthingsworkorwhythingsarethewaytheyareleavingnoroomforboredom.Theircuriositygivesthemanexponentiallearningcurvetheypickupnewthingsquicklyanddonotrefusetochange. UnconditionalLove 4Theydon'tjudgeyoubeforetheycomerunningintoyourkneesandtheydon'twalkawayifyoudon'tgivethemthesameinreturn.Theyhavenoexpectationsfromyouandsimplydowhattheirheartdesires.Ifyouwantahugthey'llgiveyouahugifyouwanttwothey'llgiveyoutwo.Sohowdoestheadultworldbecomesomaterialisticthatwedecidewhatwegivebasedonwhatwethinkwemightreceive? Livinglifetothefullestisnotadifficulttaskyoujustneedtohavetherightattitudeandanopenmind.5 A.Keepsmileeveryday B.Never﹣endingCuriosity C.Whatcanwedotofreefromtheseworries? D.Whydoweadoretheyoungonessomuch? E.Sodon'tenvythepeacefullifeofababystartlivingityourself! F.Kidshaveahugandakissforanyoneandeveryonewhowantsone. G.Theirheartispureandtheirmindemptytolaughoutloudandenjoythemoment.
南湖清淤后湖水清澈可鉴微风吹过南湖桥在水中的倒影“碎了”这是因为光在水面发生了反射选填“镜面”或“漫”．人们在湖边拍照时如果想拍花的特写此时应将相机的镜头花选填“远离”或“靠近”进行拍摄．
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8分Areyouafraidofsharks?Whataboutsnakesorspiders?PutthosefearsasidebecauseintheU.S.you'refarmorelikelytobekilledorinjuredbyadeerskippingacrosstheroad. Deercausemorethan200humansdeathseachyearplussome29000injuriesallbecauseof1.2millioncollisionsbetweenvehiclesanddeer.MostincidentsoccurintheeasternU.S.wheredeerprosperwithoutnaturalpredatorslikewolvesandmountainlions. That'stheregionintheU.S.wheredeer﹣vehiclecollisionsaresuchaproblemandwhereitseemslikeaneffectivelargecarnivorereintroductioncouldmakeareallybigdifference.sayswildlifebiologistLauraPrughfromUniversityofWashington.Shethinksitwouldhelptoreintroducepredatorslikemountainlionsalsoknownascougarspumasorpantherstopartsoftheirhistoricrangefromwhichthey'vebeendrivenout. TheresearcherssaythatbringingthepredatorsbacktotheeasternU.S.wouldmean22percentfewercollisionsbetweencarsanddeeroverthreedecades.Eachyearwouldseefivefewerhumandeaths680fewerinjuriesandasavingsofsome550million.SophieL.Gilbertthinkstherearegreatsocioeconomicbenefitsoflargepredatorrestorationthroughreducedwildlife﹣vehiclecollisionsandshesayssaysCougarshaveshownthattheycancoexistinshortdistancewithpeoplewithveryfewconflictsinalotofareasoutwest. Stillsomefolksmightbeunderstandablynervousaboutthiskindofplan.Afterallreintroducingpredatorsdoesn'tcomewithoutriskstopetsandtolivestockandveryoccasionallytopeople. OurfearoflargepredatorsissonaturalandintensethatIdon'tthinkit'spossibletojustcompletelyclearitwithstatistics…WhatIhopeisthatknowingthatthereactuallycanbesomemeasurablebenefitsmightmakepeoplealittlemoresupportiveandmaybebalancethatfearalittlebit.saysLaura. Indeedthestatisticsshowthatcougarswouldpreventfivetimesasmanyhumandeathsfromdeer﹣relatedaccidentsastheywouldcausebyattacks.Butit'llbeatoughsellthepresswillcovercougarattacksbutastatisticallypreventeddeathdoesnotmakethenews.NeverthelessIfpeopleinthewestcanputupwithhavingmountainlionsaroundIwouldhopethatNewYorkerswouldbeupforthechallengeaswell. 1WhatisclosestinmeaningtotheunderlinedwordcarnivoreinParagraph3? A.Acat﹣likeanimal. B.Adangerousanimal. C.Ameat﹣eatinganimal. D.Agrass﹣eatinganimal. 2Whydopeoplewanttobringbackmountainlions? A.Tominimizetheaccidentscausedbydeer. B.Tomaintainbiodiversityandecologicalbalance. C.Totakeupthechallengefrompeopleinthewest. D.Toreducepeople'sfearofthisdangerouscreature. 3Whyisithardtopersuadepeopletoacceptthismeasure? A.Becausetherisksoutweighthebenefits. B.Becausemountainslionslikeeatingpeople. C.Becausethebenefitsarenotaseye﹣catchingasitsrisks. D.Becausemountainlionstendtogettooclosetopeople. 4Whatisthebesttitleforthetext? A.PumaaToughSell B.ANewStudyonPuma C.DeerCauseHugeLifeLosses D.DeerorPumasaHardChoice
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为了测定风速大小小明设计了如图所示的装置．图中的探头金属杆和滑动变阻器的滑片P相连可以上下移动．下列说法正确的是
如图所示L1L2两个白炽灯泡．做实验时闭合开关有时会出现灯L1发光灯L2不发光的现象．则下列说法正确的是
如图所示在凸透镜的右焦点处有一平面镜垂直于主光轴放置．一束光AB经凸透镜和平面镜怎样传播画出光路图来．
小明面向穿衣镜站在镜前1m处镜中的像与他相距若他远离平面镜后退0.5m则镜中像的大小．选填“变大”“变小”或“不变”
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托盘天平调平衡后某同学在称量时发现指针偏向分度盘中央的左侧这时他应该
以下用品中在通常情况下属于导体的是
如图1所示电源电压保持不变小灯泡的额定电压为6V．闭合开关S后当滑片P从最右端滑到最左端的过程中小灯泡的I﹣U关系图象如图2所示． 则 1小灯泡的额定功率 2灯泡两端电压为1.5V时其阻值多大 3滑动变阻器的最大阻值．
小明同学利用如图所示的装置做小孔成像实验．他将饮料罐的前端开了一个很小的三角形小孔后端开口并蒙上半透明的纸．他把小孔对着烛焰则在半透明纸上看到的是
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30分Theroomintheworkhousewheretheboyswerefedwasalargestonehall.Atoneendthemasterinhiscook'suniformandtwowomenservedthefood.This1abowlofthinsoupthreetimesadaywithapieceofbreadonSundays.Theboysate2andwerealwayshungry.Thebowlsneverneeded3.Theboyspolishedthemwiththeirspoonsuntilthey4.Afterthreemonthsofthisslowstarvationoneoftheboystoldtheothersthatsohungrywashe5onenighthemighteatthe6sleepingnexttohim.Hehadawild7eyeandtheotherboys8him.Afteralong9theydecidedthatoneofthemshouldaskformorefoodaftersupperthateveningandOliverwas10. Theeveningarrivedthesoupwasservedandthebowlswere11againinafewseconds.Oliverwentuptothemasterwithhisbowlinhishand.Hefeltvery12butalso13withhunger. PleasesirIwantsomemore. Themasterwasafathealthymanbutheturnedverypale.Helookedatthelittleboyinfrontofhimwith14.Nobodyelsespoke. What?heaskedatlastina15voice. PleasesirrepliedOliverIwantsomemore. Themaster16himwiththeservingspoonthenseizedOliver'sarmsand17forthebeadle执事.Thebeadlecamequicklyheardtheterriblenewsandimmediatelyrantotelltheboard. Heaskedforme?Mr.Limbkinsthefattestboardmemberaskedin18.Isthisreallytrue? 19Oliverwasledawaytobelockedupandan20offivepoundswasofferedtoanybodywhowouldtakehimawayandusehimforwork. AdaptedfromOliverTwist雾都孤儿 1A.belongedto B.turnedto C.accountedfor D.consistedof 2A.nothing B.cleaning C.buying D.something 3A.washing B.cleaning C.buying D.changing 4A.finished B.starved C.shone D.slept 5A.that B.until C.when D.before 6A.boy B.master C.bowls D.spoons 7A.big B.bad C.angry D.hungry 8A.hated B.feared C.believed D.trusted 9A.quarrel B.bargain C.argument D.discussion 10A.elected B.chosen C.determined D.recognized 11A.full B.empty C.broken D.available 12A.shy B.brave C.worried D.frightened 13A.pleased B.hopeful C.desperate D.exhausted 14A.amusement B.amazement C.intension D.appreciation 15A.calm B.clear C.faint D.cautious 16A.hit B.treated C.greeted D.warned 17A.begged B.sent C.shouted D.asked 18A.horror B.sadness C.curiosity D.frustration 19A.Besides B.Therefore C.However D.Eventually 20A.award B.praise C.reward D.punishiment
8分Mid﹣afternoononaparticularlybusyTuesdayItookleaveofmydeskatworkandwalkedintoalocalStarbucksonlytofindaspacewhereneithermyclients客户normychildrenwouldaskmetodosomething. InsideIranintoKateaco﹣workerofmine.Thetopicofparenthoodcameup.Icomplainedabouthowpackedmyschedulewas.FromtheminuteIwokeuptotheminuteIfellasleepIwasconstantlyindemandandalwayshadsomeoneknockingatthedoor.ButabitofsadnessseemedtocomeoverKate'sface. Wellmydaughter'sinSanFranciscoandshedoesn'tseemtoneedmeatallthesedays.Katesaid.ItwasinthatmomentthatIrealizedalthoughImightoftenfeelinhighdemandtherewillcomeadaywhenI'llactuallymissthatsamestressInowcomplainabout. Andasourconversationcontinueditturnedtoourchildren'syoungeryearswithKatesmilingproudlythinkingofthelittleboyandgirlsheraisedwhoarenowamanandawoman.ButInoticedhersmilewasmarkedwithregret.Sheexplainedthatsheoftenwonderedaboutwhatshecouldhavedonedifferentlywhenherchildrenwereintheirearlieryears. ThisgotmethinkingIsregretanunfortunatefootnote注脚toparenthood?WiththatinmindIaskedsixolderparentsonequestionWhatisyourbiggestregretfromyourearlydaysasaparent? Itturnedoutthatallofthemthoughttheycouldhavedoneitbetter.Buteachofthemalsohasastronghealthyrelationshipwiththeirkids.Whateverregretstheirparentsmighthavehadabouttheirupbringingonethingisclear﹣itdidn'taffecttheminameaningfulway. ThebottomlineisweallfeellikewecouldbedoingthisparentingthingbetterAndquiteclearlyyearslaterwe'restillgoingtolookbackandwishwetriedthingsdifferently.Butthepastcan'tbechangedandneithershouldit. 1Whatcanbeinferredfromthefirstthreeparagraphs? A.Katehadthesameproblemastheauthor's. B.Thetwopeoplehadarrangedtomeetinthecoffeeshop. C.Katewenttothecoffeeshopsonoonecouldfindherthere. D.Theauthorwenttothecoffeeshoptoescapefromthepressuresaroundhim. 2WhydidKatefeelsadandregretful? A.Becausesheandherdaughterhadafight. B.Becauseshehadn'tpaidenoughattentiontoherkids. C.Becauseshewasdisappointedwithherkids'performance. D.Becauseshethoughtthatshecouldhavedonebetterinraisingherkids. 3Whatdidtheauthorfindwhenhespoketosixolderparents? A.Someoftheparentshaveabadrelationshipwiththeirkids. B.Hewasmovedbytheloveoftheseparentsfortheirchildren. C.Theseparentsimprovedtheirbehavioraftertheirkidsgrewup. D.Noneoftheparentswerecompletelysatisfiedwiththewaytheyraisedtheirkids. 4Whatshouldparentsdoaccordingtothelastparagraph? A.Givemorelovetotheirkids. B.Letyourchildrengrowupwithfreedom. C.Cherishthepresenttimeanddoone'sbesttobeaparent. D.Neverstoplearninghowtobeagoodparentfromothers.
如图所示小球从距离地面一定高度的O点沿x轴竖直落下不计空气阻力图象表示小球某种形式的能量E随下落高度x的变化情况．E可能表示小球的
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. NowadaysSenior3studentsaregenerallyfacedwithalotofpressurethatisrathercommon.Toreduceitthefollowingsuggestionmayhelp.Firstofallknowexactlywhatleadtoyourpressureandthenyoucantakemeasurestodealwithit.Secondlysetupagoalthatisnottoohighintheotherwordsdon'tputtoomanypressureonyourself.Thirdlyfindingawaytorelaxyourselfoccasionally.Forexampleyoucanlistenmusicgoswimmingorjustsimplegowalking.Eventuallymakefriendswithothersforexampleyourclassmatesyourteachersandourparents.Theywillunderstandyouandcometoyourhelpthoughyouarereallyintrouble.Inawordnevergetyourselfstuckinthepressureforimpossibleisnothing.
在“探究电流与电阻的关系”实验中 1请用笔画线代替导线按图1将图2中完成电路的连接 2利用图1所示电路实验得到图3所示的电流随电阻变化的图象．图中阴影部分表示的物理量是计算其数值是 3在每次换上不同的阻值的电阻R0都要调节滑动变阻器是使R0两端电压选填“增大”“不变”或“减小”．图1的电源电压9V某次接入一个阻值标注值模糊的电阻R0时正确操作后读出电流表示数此时滑动变阻器连入电路的阻值估计为2Ω则这次实验所接入的电阻R0为Ω．
15分Thesilentkiller﹣airpollutioncausessevenmillionpremature过早的1deathayearnotjustin2developcountriesbutalsoinUKandtheUSAaswell.InChinapeoplearewellawareofthehealthproblemsitbrings. Icheckeveryparteveryday.IfithasheavyairpollutionIwillpreparemasksformyfamily.Idislike3whentheairisbad.BecausebadairmakesitdifficultformetobreatheandIthinkitdoesinfluencemy4performatwork.Anewresearchinchinahasalsofoundalinkbetweenairqualityandlevelsofintelligence.Inthestudy25000peoplelivingacrossChina5testinlanguageandmathskillslastyear.Theyfoundtheresultsofthose6livedinmorepollutedareaswere7negativeimpactedespeciallyinlanguages.Itaddstoagrowingbodyofevidencethatairpollutionhasaneffectnotjustonthelungsandheart8onthebrain. Thisresearchshowsthatthelongerweareexposedtoairpollutionthe9manyproblemswe'restoringupforlaterlife.CampaignershopethisstudywillpersuadetheBritishgovernment10thinkhardbeforeitpublishesitscleanairstrategynextyear.
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