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Mother Teresa (August 26, 1910﹣September 5, 1997)was a great woman, who did a lot to improve the so...
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高一下学期英语《》真题及答案
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第三部分阅读理解共20小题每题2分满分40分阅读下列短文从每题所给的四个选项A.B.C和D中选出最佳
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下列有关物质的用途错误的是
化学是在分子原子的层次上研究物质的组成结构性质以及变化规律的科学． 运用比较归类等方法学习化学可以起到事半功倍的作用． 1现有“二氧化碳铜一氧化碳硫酸铵镁”五种物质请依据物质的构成从中选出一类物质不能只包含一种物质并说出分类依据． ①选出的物质是写化学式②分类依据是． 2像氯化钠这样由①通过静电作用形成的化合物叫离子化合物．而氯化氢的形成过程则不同氢原子趋向于得一个电子氯原子也趋向于得一个电子双方各拿出个电子组成共用电子对为两个原子所共用．像氯化氢这样以共用电子对形成分子的化合物叫共价化合物．下列属于离子化合物的是②填字母． A．Na2SB．H2OC．NO
欲测定某氯化钠样品含少量碳酸钠中氯化钠的质量分数．取50g固体样品加入到一定量的氯化钙溶液中恰好完全反应过滤将滤液蒸干得到固体51.1g不计溶质损失则样品中氯化钠的质量分数为
区分下列各组物质的两种方案都不正确的是
Agoodrelationshipbetweenstudentsandteachersmakestheclassroomaveryinvitingplace.Whenyoulikeyourteachersit'seasiertopayattentiontotheirexplanationsandimproveyourmarks.Whenyouconsideryourteachersasfriendsyou'llcertainlyhavemorerespectforthem.Whenyourteachersconsideryoutobeafriendthey'llfeelmoreopeninclassandthatwillprobablyinfluencetheclassroominapositiveway.Nowherearesometipstodevelopafriendlyrelationshipwithyourteachers Askquestions.Ifyouhaveanyquestionsaboutthatsubjectaskthem.Showthemthatyou'reinterestedintheirsubjects.Thatwillmakethemnoticeyou.Butneveraskquestionsthatyoualreadyknowtheanswersto.Ifyourteachersrealizethatyouarenotaskingrealquestionstheymightthinkthatyou'renotactuallytryingtolearnbutonlytryingtomakeanimpression. Talkaboutnon﹣schoolsubjects.Whenyouseeoneofyourteachersinthehallgreethim/herandaskifhe/sheisgoingtothatconcertorifhe/shehasseenthatmovie.Thatwayyou'llshowthatyouconsiderhim/herasareined.Someteachersdon'tliketohavefriendlyrelationshipswithstudentsbutmostofthemarehappytochatwiththeirstudents.Afterawhiletheymaystarttotalkwithyouaboutnon﹣schoolsubjectsintheclassroom. Therestistotallyuptoyouitisveryeasytodevelopafriendlyrelationshipwithanyofyourteachers.Ifyouwanttobefriendswithyourteachersjusttreatthemasfriendsbutdon'tforgetthatnomatterhowgoodfriendsyouaretheywillstillbeyourteachersanddeserveyourrespect. 1Whatdoesthefirstparagraphmainlytellus? A.Howtomakefriendswithyourteachersinoroutofclass. B.Howimportantagoodteacher﹣studentrelationshipis. C.Howtomakeyourselfpayattentiontoyourteachersinclass. D.Sometipsfordevelopingafriendlyrelationshipwithyourteachers. 2Whenyouaskateacherquestionsyoualreadyknowtheanswersto. A.youmaymakeafoolofyourselftryingtobesmart B.itmeansthatyoushouldnotbeaboveaskingquestions C.youareactuallytryingtomakefunofyourteachers D.itshowsthatyou'retryingtopretendtoknoweverything 3What'sthemainideaofthispassage? A.Whatagoodteacher﹣studentrelationshipis. B.Howtomakefriendswithyourclassmatesatschool. C.Howtomaketheclassroomaveryinvitingplace. D.Howtodevelopagoodrelationshipwithyourteachers.
“二月二拾龙头”中国家庭都有在这一天吃猪头肉的传统．小明家这一天的午餐食谱有“米饭猪头肉玉米胡萝卜沙拉菠菜蛋花汤清炒西兰花”请根据上述信息回答问题 1玉米富含的营养素是①鸡蛋富含的营养素的作用是②是机体生长和③的主要原料． 2北方寒冷种植玉米时为抵御寒冷可以适量施加①填化肥化学式如果玉米叶片边缘发黄还需施加②肥填化肥种类该类化肥的作用是促进植物生长增强③能力． 3妈妈做饭时穿的围裙是合成纤维制成的．下列不属于合成纤维的是填宇母． A．羊毛B．蚕丝C．涤纶
碱性食物是血液和血管的清洁剂．下面碱性食物中富含维生素的是
如图是乙醇的分子结构示意图下列叙述正确的是
Welcometoyourfuturelife! Yougetupinthemorningandlookintothemirror.Yourfaceisfirmandyoung﹣looking.In2035medicaltechnologyisbetterthanever.Manypeopleyouragecouldlivetobe150soat40you'renotoldatall.Andyourparentsjusthadananti﹣agingtreatment.Nowallthreeoflookthesameage! YousaytoyourshirtTurnred.Itchangesfrombluetored.In2035smartclothescontainparticles粒子muchsmallerthanthecellsinyourbody.Theparticlescanbeprogrammedtochangeclothes'colororpattern. Youwalkintothekitchen.YoupickupthemilkbutavoicesaysYoushouldn'tdrinkthat!Yourfridgehasreadthechip芯片thatcontainsinformationaboutthemilkanditknowsthemilkisold.In2035everyarticleoffoodinthegrocerystorehassuchachip. It'stimetogotowork.In2035carsdrivethemselves.Justtellyoursmartcarwheretogo.Onthewayyoucancallafriendusingyourjacketsleeve.Suchsmarttechnologyisallaroundyou. Sowillallthesethingscometrue?FornewtechnologytosucceedsaysscientistAndrewZolliithastobesomuchbetterthatitreplaceswhatwehavealready.TheInternetisoneexample﹣whatwillbethenext? 1Wecanlearnfromthetextthatinthefuture. A.peoplewillnevergetold B.everyonewilllookthesame C.redwillbethemostpopularcolor D.clotheswillbeabletochangetheirpattern 2WhatcanbeinferredfromParagraph4? A.Milkwillbeharmfultohealth. B.Moredrinkswillbeavailableforsale. C.Foodinthegrocerystorewillcarryelectronicinformation. D.Milkinthegrocerystorewillstayfreshmuchlonger. 3Whichofthefollowingismentionedinthetext? A.NothingcanreplacetheInternet. B.Fridgeswillknowwhatpeopleneed. C.Jackedsleevescanbeusedasaguide. D.Carswillbeabletodriveautomatically. 4Whatisthetextmainlyabout? A.Foodandclothingin2035. B.Futuretechnologyineverydaylife. C.Medicaltreatmentsofthefuture. D.Thereasonforthesuccessofnewtechnology.
【聚焦两会】2018年全国两会召开全国人大常性．委会紧盯环保工作不放松多项议题规划未来建设美丽中国其中天津市环保局尝试在天津推动沼气公交车将资源环境问题和经济技术统筹考虑实现一箭“多”雕．待试点项目成功后将沼气公交车作为新能源车辆的重要补充在京津冀地区乃至全国推广． 1经研究车体若减轻10%的重量可节约8%的能源减排6%的CO2因此铝合金材料用于沼气公交车车体这主要利用了它具有的性能是 A．密度大硬度大B．密度小强度好C．熔点低 2沼气公交车使用沼气替代普通公交车柴油或汽油作燃料请写出沼气公交车燃气缸内反应的化学方程式为在此化学反应前后氧元素的化合价分别为． 3沼气公交车使用沼气作燃料代替化石燃料其在行驶过程中的能量转化行驶中可有效减少含铅化合物颗粒物等大气污染物的排放．
对下列事实解释错误的是
LikeallbigcitiesParishasatrafficproblemlotsofcarslotsoftrafficjamsandlotsofpollutionfromexhaustfumes废气.Sothecitybeganaprojecttoimprovethesituation. UndertheVelibproject‘Velib'comesfromvélolibertéor‘bicyclefreedom'peoplecantakeabicycleuseitforaslongastheywantandthenleaveitatthesameoranotherbicyclestation.Thefirsthalf﹣houronthebikeisfreebutifyoudon'treturnitafter30minutesyouhavetopay.Butit'sonly€1adayor€29ayear!Thebicyclesareheavy25kgandtheyareallgreyandhavebaskets.Thereareabout20000oftheminthecityandaround1450bicyclestations.SotherearealotmoreVelibstationsthanthe298subwaystations! Parisisnotthefirstcitytohaveaprojectlikethis.Butnoteverybodythinksit'sagreatidea.OneParisiansaidThesebicyclesareonlyforshortjourneys.Ifpeoplewanttotravelacrossthecitytheywon'tuseabicycle﹣they'llstillusetheircars. AcityspokesmansaidThebicycleprojectwon'tsolveallourtrafficproblemsofcourse.Butitmighthelpreduceairpollution.Traffictogetherwithfactoryfumesisabigproblem.Therearen'tanysimpleanswerstotrafficproblemsandpollutionincities.Butunlesswedosomethingnowtherewillbemoretrafficjamsandtemperatureswillcontinuetorisesotheproblemsinourenvironmentwillgetworse.Thebikesmighthelppeopletoleadahealthierlifetoo. 1WhatcanwelearnabouttheVelibproject? A.Itsbikeshavenobaskets. B.Itsbikesarelightandcolorful. C.Itaimstomaketravelingeasier. D.Itownsmorestationsthanthesubway. 2IfyouuseaVelibfor1houryoushouldpay. A.Free. B.€1. C.€29. D.€30. 3WhydosomepeopledisagreewiththeVelibproject? A.Thecostisratherhigh. B.It'shardtofindaVelibstation. C.It'snotsuitableforalongjourney. D.ThedistancebetweentwoVelibstationsislong. 4What'sthecityspokesman'sattitudetowardsthebicycleproject? A.Worried. B.Positive. C.Uncaring. D.Doubtful.
下列物质的应用与所利用的性质搭配不当的一项是
Inourmodernworldwhensomethingwearsoutwethrowitawayandbuyanewone.The1isthatcountriesaroundtheworldhavegrowingmountainsof2becausepeoplearethrowingoutmorerubbishthaneverbefore. Howdidwe3athrowawaysociety?Firstofallitisnoweasierto4anobjectthantospendtimeandmoneytorepairit.5modernmanufacturing制造业andtechnologycompaniesareabletoproduceproductsquicklyandinexpensively.Productsareplentifuland6. Anothercauseisour7ofdisposable一次性的products.As8peoplewearealwayslookingfor9tosavetimeandmakeourliveseasier.Companies10thousandsofdifferentkindsofdisposableproductspaperplatesplasticcupsandcamerastonameafew. Ourappetitefornewproductsalso11totheproblem.Weare12buyingnewthings.Advertisementspersuadeusthat13isbetterandthatwewillbehappierwiththelatestproducts.Theresultisthatwe14usefulpossessionstomakeroomfornewones. Allaroundtheworldwecanseethe15ofthisthrowawaylifestyle.Mountainsofrubbishjustkeepgettingbigger.To16theamountofrubbishandtoprotectthe17moregovernmentsarerequiringpeopletorecyclematerials.18thisisnotenoughtosolve解决ourproblem. Maybethereisanotherwayout.Weneedtorepairourpossessions19throwingthemaway.Wealsoneedtorethinkourattitudesabout20.Repairingourpossessionsandchangingourspendinghabitsmaybethebestwaytoreducetheamountofrubbishandtakecareofourenvironment. 1A.key B.reason C.project D.problem 2A.gifts B.rubbish C.debt D.products 3A.face B.become C.observe D.change 4A.hide B.control C.replace D.withdraw 5A.Thanksto B.Asto C.Exceptfor D.Regardlessof 6A.safe B.funny C.cheap D.powerful 7A.love B.lack C.prevention D.division 8A.sensitive B.kind C.brave D.busy 9A.ways B.places C.jobs D.friends 10A.donate B.receive C.produce D.preserve 11A.adapts B.returns C.responds D.contributes 12A.tiredof B.addictedto C.worriedabout D.ashamedfor 13A.newer B.stronger C.higher D.larger 14A.pickup B.payfor C.holdonto D.throwaway 15A.advantages B.purposes C.functions D.consequences 16A.show B.record C.decrease D.measure 17A.technology B.environment C.consumers D.brands 18A.However B.Otherwise C.Therefore D.Meanwhile 19A.by B.infavourof C.after D.insteadof 20A.spending B.collecting C.repairing D.advertising
为测定氢氧化钠和硫酸钠混合物的组成情况某研究小组进行了如下实验． 请回答下列问题 1实验中发生反应的化学方程式为． 2求解混合物中发生反应物质的质量x的比例式为． 3混合物中氢氧化钠和硫酸钠质量的最简整数比为． 4在滴加氢氧化钡溶液的过程中烧杯中各溶质质量的变化情况为． 5所用氢氧化钡溶液中溶质质量分数为．
已知A﹣F是教案备课库常见的物质．他们之间的关系如图所示图中“一”表示相连的两种物质之间可以发生反应“→”表示物质间存在着相应的转化关系部分反应物生成物反应条件及反应关系已略去其中E物质是人体内胃酸的主要成分B是应用最广泛的金属A和B中含有相同元素D为一种单质．请回答下列问题 1写出物质ABEF的化学式ABEF 2A与E发生反应的现象为． 3写出E与C反应的化学方程式为．
下列除杂选用的试剂及操作方法都正确的是
ItwasMother'sDaymorninglastyear.MyfiveyearoldsonTenysonandI1leavethesupermarketaftershoppingwhenanoldwomanfelloverattheentranceandhitherheadontheground.Herhusbandwaswithherbutthewomanwas2serioushurtandshakingwithpain. Atthefrontofthesupermarketacharity慈善groupwassellingflowerstoraisefunds.Tenysonsuggestedthatwe3buytheladyaflower.Itwillmake4feelbetterhesaid.Iwasamazedthathe'dcomeup5suchasweetidea.Sowewenttotheflowersellertobuyaflowerforthelady. Bynowrescuershadarrivedandwereattendingthe6injurewoman.Aswewalkeduptohermysonbecamefrightenedbyallthebloodandmedical7equip.Hesaidhewasjusttooscaredtogouptoher. InsteadIgavetheflowertothewoman'shusband8toldhimMysonwasveryupsetforyourwifeandboughtherthisflowertocheerherup. AtthattheoldmanwasmovedandsaidThankyousomuchyouhaveagoodson.HappyMother'sDaytoyou. Themanthengavehiswifetheflower9tellherwhoitwasfrom.10badlyhurttheoldladylookedupatTenysonwiththanksinhereyesandgavehimalittlesmile.
三项测试结束后同学们帮助老师整理实验室时发现桌面上的废液缸中有白色沉淀已知这组同学的实验内容是“用碳酸钠溶液鉴别氢氧化钡溶液和稀硫酸“如图．同学们将白色沉淀过滤对滤液中的溶质组成情况展开探究 【收集证据】小组同学取少量滤液于试管中向其中加入稀硫酸发现有气泡产生发生反应的化学方程式为1． 【提出问题】滤液中的溶质成分是什么 【猜想与假设】小华Na2CO3Na2SO4 小美Na2CO3NaOH 小明2． [实验探究]小华取少量滤液于试管中先滴加过量稀盐酸再滴加氯化钡溶液观察到明显的实验現象是3于是证明自己的猜想正确．小明和小美认为小华的实验不能得出正确结论．理由是4． 【分析与归纳】就本题而言从反立物含有的离子角度分析更容易一些．首先依据小组同学实验现象可知一定含有的离子是5填离子符号利用离子共存知识能确定6填离子符号一定不存在．再依据题中信息对一定存在的离子和可能存在的离子进行合理组合即可得出正确猜想．
下列叙述和对应的化学方程式所属基本反应类型正确的是
Hedidnotlookforwardtobeingin债务becausehisrestaurantwasnolongerpopular.
对下列事实的解释错误的是
1物质的性质很大程度上决定了物质的用途．以下是生产生活中一些物质的用途 ①铜制成导线②氢氧化钠去除油污③氧气用于医疗急救 ④金刚石用于裁玻璃⑤石墨可制铅笔芯⑥碳酸氢钠用于治疗胃酸过多 请你从用途中体现出的主要性质角度将上述用途平均分为两类其中一类的分类标准是①包括事例为为②填序号． 2教案备课库实验中利用许多化学实验思想方法具体有控制变量对比等．从化学实验具体思想方法的角度可将下列实验中的A与填“B”成“C”归为一类理由是．
如图是处理汽车尾气时发生的某个反应的微观模拟图请回答问题 1请在B图中补充相关粒子图形以使其正确． 2写出该反应的化学方程式． 3化学变化的过程实际上就是①破裂②重新组合的过程化学变化前后原子的种类数目和质量都没有发生改变． 4图A表示的物质属于物质分类中的①判断的微观依据是②．
下列实验操作正确的是
下列应用和相应的原理用化学方程式表示及基本反应类型都正确的是
Isthereanythingmoreimportantthanhealth?Idon'tthinkso.Healthisthegreatestwealth财富wisepeoplesay.1 IfyouhaveaheadachetoothachebackacheearacheorbadpaininthestomachifyoucomplainofabadcoughifyourunahightemperatureandhaveabadcoldorifyousufferfromhighorlowbloodpressureIthinkyoushouldgotothedoctor. ThedoctorwillexamineyourthroatfeelyourpulsetestyourbloodpressuretakeyourtemperaturesoundyourheartandlungstestyoureyescheckyourteethorhaveyourchestX﹣rayed.2Theonlythingyouhavetodoisfollowhisadvice.3 Anoldgentlemancametoseethedoctor.Themanwasveryill.Hetoldthedoctorabouthisweaknessmemorylossandseriousproblemswithhisheartandlungs.Thedoctorexaminedhimandsaidtherewasnomedicineforhisdisease.Hetoldhispatienttogotoaquietplaceforamonthandhaveagoodrest.4InotherwordsthedoctoradvisedhimtofollowtheruleEatatpleasuredrinkwithmeasureandenjoylifeasitis.Thedoctoralsosaidthatifthemanwantedtobewellagainheshouldn'tsmokemorethanonecigaretteaday. Amonthlaterthegentlemancameintothedoctor'soffice.5Hethankedthedoctorandsaidthathehadneverfeltahealthierman. Butyouknowdoctorhesaidit'snoteasytobeginsmokingatmyage. A.Healsoadvisedhimtoeatalotofmeatdrinktwoglassesofredwineeverydayandtakelongwalks. B.Youcan'tbegoodatyourstudiesorworkwellwhenyouareill. C.Afterthathewilladvisesometreatmentorsomemedicine. D.Allthesewillcostalotofmoney. E.Helookedcheerfulandhappy. F.Hewasmoreworriedabouthisillness. G.Speakingaboutdoctor'sadviceIcan'thelptellingyouafunnystory.
请根据如图的溶解度曲线图判断下列说法正确的是
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. DearLiHua I'mverydelightingtohavereceivedtheletteryousendmetwoweeksago.I'vebeenthinkingaboutthequestionyouaskedme.Frommypointofviewyoushouldcomebackbeforeyoufinishyourstudyatabroad.ForonereasonwhatyouarestudyingisbadneedednowadaysinChina.Itwillbequiteaeasythingforyoutofindagoodjob.Asamatteroffactmanybigcompaniesinourcityarehopingtoemploypeopleasyou.Forotherreasonitwillbemuchmoreconvenientforyoutolookafteryourparentastheyaregettingold.ThereforeIthinkit'sagoodideaforyoutoreturn.Sowhatareyouwaiting?
AsInternetusersbecomemoredependentontheInternettostoreinformationarepeoplerememberless?Ifyouknowyourcomputerwillsaveinformationwhystoreitinyourownpersonalmemoryyourbrain?ExpertsarewonderingiftheInternetischangingwhatwerememberandhow. InarecentstudyProfessorBetsySparrowconductedsomeexperiments.SheandherresearchteamwantedtoknowtheInternetischangingmemory.Inthefirstexperimenttheygavepeople40unimportantfactstotypeintoacomputer.Thefirstgroupofpeopleunderstoodthatthecomputerwouldsavetheinformation.Thesecondgroupunderstoodthatthecomputerwouldnotsaveit.Laterthesecondgrouprememberedtheinformationbetter.Peopleinthefirstgroupknewtheycouldfindtheinformationagainsotheydidnottrytorememberit. InanotherexperimenttheresearchersgavepeoplefactstorememberandtoldthemwheretofindtheinformationontheInternet.Theinformationwasinaspecificcomputerfolder文件夹.Surprisinglypeoplelaterrememberthefolderlocationbetterthanthefacts.WhenpeopleusetheInternettheydonotremembertheinformation.Rathertheyrememberhowtofindit.Thisiscalledtransactivememory交互记忆. AccordingtoSparrowwearenotbecomingpeoplewithpoormemoriesasaresultoftheInternet.Insteadcomputerusersaredevelopingstrongertransactivememoriesthatispeoplearelearninghowtoorganizehugequantitiesofinformationsothattheyareabletoaccessitatalaterdate.Thisdoesn'tmeanwearebecomingeithermoreorlessintelligentbutthereisnodoubtthatthewayweusememoryischanging. 1Thepassagebeginswithtwoquestionsto. A.showtheauthor'saltitude B.introducethemaintopic C.describehowtousetheInterne. D.explainhowtostoreinformation 2Whatcanwelearnaboutthefirstexperiment? A.Sparrow'steamtypedtheinformationintoacomputer. B.Thefirstgroupdidnottrytoremembertheformation. C.Thetwogroupsrememberedtheinformationequallywell. D.Thesecondgroupdidnotunderstandtheinformation. 3Intransactivememorypeople. A.keeptheinformationinmind B.changethequantityofinformation C.rememberhowtofindtheinformation D.organizeinformationlikeacomputer 4WhatistheeffectoftheInternetaccordingtoSparrow'sresearch? A.Wearebecomingmoreintelligent. B.Weareusingmemorydifferently. C.Wehavepoorermemoriesthanbefore. D.Weneedabetterwaytoaccessinformation.
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高一下学期物理
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