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在“探究滑动摩擦力的大小与什么有关”实验中, (1)如图,将长方体木块置于水平木板上,用弹簧测力计沿水平方向匀速拉动木块,滑动摩擦力大小 (填“大于”“小于”或“等于”)弹簧测力计示数. (...
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如图所示是探究滑动摩擦力的大小与什么因素有关的实验.器材有木块A一块砝码一个弹簧测力计一个长木板一块
在探究滑动摩擦力的大小与哪些因素有关的实验中小华3次实验情况如图中甲乙丙所示.1实验时为了测出滑动摩
在探究滑动摩擦力的大小跟哪些因素有关的问题时兴趣小组的同学们做了如下的猜想猜想A.滑动摩擦力的大小可
在探究影响滑动摩擦力大小的因素实验中实验小组的同学利用长木板玻璃板及一些完全相同的木块进行了如图所示
在探究"滑动摩擦力的大小跟哪些因素有关"的问题时兴趣小组的同学们作了如下的猜想猜想A.滑动摩擦力的大
在探究影响滑动摩擦力大小因素的实验中做了如下图所示的实验为了测定滑动摩擦力的大小用弹簧测力计沿水平方
2015春•岳池县期末在探究滑动摩擦力的大小与哪些因素有关的实验中小明的两次实验如图A.B.所示.1
为了探究滑动摩擦力的大小与什么因素有关某同学利用弹簧测力计长方形木块砝码长木板和毛巾等器材做了如下的
在探究滑动摩擦力的大小与哪些因素有关的实验中小华3次实验情况如图中甲乙丙所示.1实验时为了测出滑动摩
如图某实验小组做探究滑动摩擦力的大小与哪些因素有关的实验.1在实验中用弹簧测力计沿水平方向匀速拉动木
如图7所示是探究滑动摩擦力大小’’的实验.实验时应水平__________拉动弹簧测力计.对比甲乙两
在探究影响滑动摩擦力大小因素的实验中做了如下图所示的实验为了测定滑动摩擦力的大小用弹簧测力计沿水平方
图23是探究滑动摩擦力的大小与哪些因素有关的实验装置⑴在测量滑动摩擦力的大小时必须让木块在水平面上做
如图所示在探究影响滑动摩擦力大小因素的实验中以下说法正确的是
实验时要把实验装置放在水平桌面上
木块受到滑动摩擦力的大小可以直接用弹簧测力计测量
比较甲图和乙图的实验,说明滑动摩擦力的大小跟接触面的粗糙程度有关
比较乙图和丙图实验,说明滑动摩擦力的大小跟接触面受到的压力有关
如图所示是研究影响滑动摩擦力大小的因素的实验有关此实验的说法中正确的是A.分析甲乙可得滑动摩擦力的大
为了探究滑动摩擦力大小与什么因素有关小明设计了如图15所示的实验1实验过程中弹簧测力计_______
在探究滑动摩擦力的大小与哪些因素有关的实验中小华3次实验情况如图中甲乙丙所示.1实验时为了测出滑动摩
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在探究滑动摩擦力的大小与哪些因素有关的实验中如图所示.1实验中必须水平拉着木块做直线运动使弹簧测力计
下图是测量水平运动物体所受的滑动摩擦力的实验装置图1实验时在水平桌面上用弹簧测力计水平向左拉动一个长
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8分Instagramisafastbeautifulandfunwaytoshareyourlifewithfriendsandfamily.TakeapictureorvideochooseafiltertotransformitslookandfeelandthenposttoInstagram﹣it'sthateasy.YoucanevensharetoFaceBookTwitterandmore.It'sanewwaytoseetheworld.SomanyphotosoffoodarecontainedonInstagram﹣nowapop﹣updinerinLondonistakingadvantageofthisnewtrendbylettingpeoplesettlethebillfortheirmealssimplybyuploadingphotosoftheirdishestosocialnetworks. Ialwaysthoughtpeople'stakingpicturesoftheirfoodwaskindofsillybutatthisnewpop﹣uprestaurantintheUKI'dprobablydoittoo.ThePictureHouseistheworld'sfirstpay﹣by﹣photorestaurant.YouorderclickaphotoofthefoodshareonInstagramandeatforfree! TherestaurantbelongstofrozenfoodgiantBirdsEyewhocameupwiththeideatocashinonpeople'saddictionwithphotographingfoodandsharingthepicturesonline.TheyconductedasurveyandfoundoutthatmorethanhalfoftheBritishpopulationregularlytookpicturesoftheirmeals.Sotheyrealizeditwasabetterwaytoadvertisetheirnewdiningrange. Thepop﹣updinerwasopeninSOHOLondonforthreedaysinMayandisnowmovingtoothermajorUKcities.Theyservetwo﹣coursemealsthatcustomersdon'thavetopayforiftheyphotoandInstagramit. TherestaurantisapartofBirdsEye'sFoodforLifecampaignanewmarketingprojectthataimsatchangingthewaypeoplelookatfrozenfood.Takingphotosoffoodenablespeopletoshowoffandtosharetheirmealtimemoments﹣fromtheeverydaytothespecialsaidmarketingdirectorMargaretJobling. ThereactiontothePictureHousehasbeengreatsofar.Andthepay﹣by﹣pictureconcepthasproventobeaneffectiveway.Alternativepaymentmethodsareactuallygainingpopularityamongalotofbusinesses.LastyearinacafeinGermanycustomerspaybyhowmuchtimetheyspendtherenotbywhattheyeat. 28.FromthedescriptioninthepassagewecanseeInstagramis. A.arestaurantinwhichmealsarefree B.anewmarketingstrategyofarestaurant C.thenameofacompanytocollectfoodpictures D.anapplicationsoftwaretosharephotosorvideos 29.WhatthePictureHousedoesisactually. A.anadtoexpanditspopularity B.arewardtoitsregularcustomers C.anefforttoraisethepriceoftheirfrozenfood D.amethodtryingtochangeBritishpeople'stypeofdining 30.Whatcanbeinferredfromthepassage? A.Thepay﹣by﹣pictureconcepthasreceivedagreatreaction. B.MealsarefreeifyousendyourpicturestothePictureHouse. C.Thepop﹣updinerwasopeninSOHOLondonforthreedaysinMay. D.TakingandsharingphotosoftheirmealshasbecomeanewtrendinBritain. 31.Whichofthefollowingcanbethebesttitleforthepassage? A.PaybyPicture. B.ThePictureHouse. C.NoPictureNoMeal. D.NewDiningStyle.
10分Inourhyper﹣technologicalagethewayweinteractwithothersface﹣to﹣facetellsothershowwellweworkwithothersaswellasourabilitytomaintaingoodinterpersonalrelations.36Herearefivejobinterviewmistakesthatmillennials千禧一代oftenmakesoyoucanbesurenottomakethemtoo.1.OverusingthewordLikeEventhoughweallhaveproblemswithinsertingthewordintooureverydayspeechgivingoureveryotherwordwithlikehasimplicationsmillennialsmaynotevenbeawareof.372.ForgettingtoputyourphoneonsilentIfyourphoneconstantlypingsandmakesothernoisesduringyourinterviewthepersonyou'retalkingtowillnotbeimpressed.Youareagenerationthatalwayshasaphoneinhand.383.DressinginappropriatelyAlthoughworkattirenowtendsmoretowardcasualthanathree﹣piecebusinesssuitit'sstillincrediblyunprofessionaltoshowupinclothingthat'sclearlynotsuitablefortheoffice.4.TalkingtooproudlyInagenerationthatvaluestheindividualaboveanythingelseitcanfeelalmostlikesecondnaturetotalktoomuchaboutoneself.395.40ApreliminaryGooglesearchregardingthecompanyyouwanttoworkfortakesnomorethan5minutesbuttheknowledgegoesalongway.EventhoughweliveinanageofextremeconnectivityandInternetknowledgeoverloaddon'tforgettobrushuponyourfactsbeforemeetingupwithyourinterviewer.A.Itcanmakeusappearlikewe'reguessingourselvesnotconfident.B.Forgettingtheknowledge.C.Talkingtoomuchisadisadvantagesometimes.D.Remembertofindthebalancebetweensayingtoolittleandsayingtoomuch.E.Notdoingtheresearch.F.Nottakingsecondstomakesureitwon'tdisturbothersisasuresignofcarelessness.G.Thismakesthejobinterviewespeciallycritical.
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某兴趣小组为测定石灰石中碳酸钙的质量分数取12g石灰石样品加入烧杯中将120g稀盐酸平均分四次加入充分反应后杂质不溶于水也不与稀盐酸反应测得实验数据如下 分析数据计算结果精确到0.1% 1该样品中碳酸钙的质量分数. 2所用稀盐酸的溶质质量分数. 312g样品中的碳酸钙恰好完全反应时所得溶液的溶质质量分数.
30分Oneofthemostremarkablethingsaboutthehumanmindisourabilitytoimaginethefuture.Inour1wecanseewhathasnotyethappened.Forexamplewhilewearelookingforwardto2anewplaceorcountrywe3whatitwillbelike.Wepredictthe4peoplewilleatdressandact.Ofcoursewedonotalwayspredictthings5.Thingsareoftenverydifferentfromthewaywe6themtobe. Oneofthe7dreamsinhistoryisthedreamoftheGermanscientistKekulewhohadbeen8toworkoutaverydifficultprobleminphysics.Hehad9andanalyzedtheproblemfromeveryanglefordaysbutthere10tobenowayof11outtheanswer.Thenonenighthewenttobedanddreamed.Whenhe12upherealizedthatheknewtheanswer.Hehadsolvedtheprobleminhis13. Thehypnotist催眠者satinthechairoppositehimandspoke14:Iwantyoutoconcentrateonmyvoice.Thinkabout15.Youknownothingbutmyvoice.Andasyoupayattentiontomyvoiceyour16willgetheavier.Soonyou'llbeasleep. Youwillhearmyvoiceand17mywordsbutyourbodywillbeasleepyoureyesaretooheavy.Youare18asleepandwhenyouwakeupyouwill19nothing. Youwillforgeteverything.NowIamgoingto20slowlyfromonetofive.Onetwothreefourfive. 1.A.brains B.senses C.minds D.sights 2.A.visiting B.seeking C.reaching D.discovering 3.A.imagine B.know C.feel D.guess 4.A.custom B.habit C.style D.way 5.A.quickly B.simply C.correctly D.neatly 6.A.required B.wished C.left D.expected 7.A.funny B.dull C.famous D.silly 8.A.managing B.trying C.thinking D.hoping 9.A.studied B.learned C.discussed D.searched 10.A.used B.ought C.seemed D.had 11.A.bringing B.finding C.turning D.letting 12.A.gave B.sat C.woke D.got 13.A.dream B.lesson C.research D.exercise 14.A.softly B.loudly C.slowly D.firmly 15.A.everything B.something C.nothing D.anything 16.A.eyes B.feet C.head D.body 17.A.believe B.repeat C.take D.understand 18.A.really B.extremely C.actually D.almost 19.A.accept B.remember C.hear D.receive 20.A.count B.say C.add D.speak
下列有关说法正确的是
8分AreportbytheUS'OpenSyllabusProjectfoundthatthemostreadbooksamongUScollegestudentsinthepastyearwerethelikesofTheRepublicbyancientGreekphilosopherPlatoandTheClashofCivilizationsbyUSpoliticalscientistSamuelHuntington.AndaccordingtoreportsreleasedbyChinesecollegelibrariesthemostpopularbooksamongChinesestudentsarenovelslikeJourneyUndertheMidnightSunbyJapanesewriterKeigoHigashinoandDemi﹣GodsandSemi﹣Devils天龙八部byChineseauthorLouisCha. ThisisconsideredbymanytobeoneofthereasonswhyChinesestudentsaresometimesnotasgoodatcriticalthinkingorobservingglobalperspectivesasUSstudents﹣theyreadtoomanybestsellernovels. ByreadingtextsinsocialstudiesscienceandotherdisciplinesstudentsbuildafoundationofknowledgeinthesefieldsthatwillalsogivethemthebackgroundtobebetterreadersinallareasRobertPondisciovicepresidentoftheCoreKnowledgeFoundationintheUStoldTheWashingtonPost. AccordingtoChinaYouthDailythereareusuallyfivestageswhenitcomestoreadingwithpopularnovelsatthebottom.Moreadvancedreadersnormallygoontoreadclassicfictionalliteraturehistoryandphilosophyorbookswithcriticalideas.Thefifthstageinvolvesstudentsmakingtheirownreadinglistsbasedontheideological意识形态的systemstheyhavebuiltthroughouttheyears. Wespendhoursdaysorevenweeksonabooksoit'sonlynaturalthatwewanttolearnsomethingusefulinreturnforourefforts.Manyseereadingasaninvestmentinthemselves. Butthispracticalviewofliteratureandthethoughtthathistoryandphilosophybooksaresuperiortonovelsisnotagreedbyeveryone.Afterallwhattheyofferaretwodifferentkindsofsatisfaction.Whiletheformerprovidesknowledgethelatterbringssentimental情感的experiences.FictionandpoetryaremedicinesUKwriterJeanetteWintersononcewrote.Whattheyhealistherupture裂痕realitymakesontheimagination. 24.Thepurposeofparagraphoneisto. A.comparethepopularbooksbetweentheUSandChinesestudents. B.introducethedifferentdiscoveriesfromChinaandtheUS. C.analyzetheculturaldifferencesofthetwocountries. D.statewhyChinesestudentsaresometimesnotgoodatcriticalthinking 25.Toknowsomethingineachareastudentsshouldread. A.famousnovelswhichhaswonmanyprizes B.textsinsocialstudiesandotherdisciplines C.modernmagazineswhichhavegainedgreatpopularity D.sciencefictionsinvolvingknowledgeinmanyareas 26.AccordingtoChinaYouthDailywhichisthehigheststagewhilereading? A.Booksbasedonthereaders'thought. B.Classicfictionalliterature. C.Bookswithcriticalideas. D.Popularnovels. 27.Whatcanweinferfromthelasttwoparagraphs? A.Historybooksaresuperiortonovels. B.JeanetteWintersonthoughtfictionandpoetryarealsouseful. C.Philosophybookshelpthereadersgetemotionalexperience. D.Thewriterpreferstoreadthehistoricalandscientificbooks.
8分Oneoftheunpleasantaspectsofbeingamanageristhatyouhavetodealwithemployeeswhoengageinviolatingcompanypolicies.Sometypicaldisciplinaryactionswillbedonesuchasreassignmentorevenfiring.Toolightandtheywillnotsufficientlycommunicatetheseverityoftheinfraction违规行为bothtotheemployeewhobroketherulesandtothepeerswhoarewatching.Tooheavyandyoucreateanunfairenvironmentthatviolateseveryone'sexpectationsforjustice. Weallwanttobelievethatwearefairandthatwewouldbeobjective.Howeverthere'sanimportantfactorthatcouldundermineyourabilitytobefair:sleep.Mycolleagues﹣KyoungminChoattheUniversityofWashingtonandCristianoGuaranaattheUniversityofVirginia﹣andIwantedtoinvestigatethislink.Mypreviousresearchindicatesthatlackofsleepdamagesjudgmentandbehavior.Andtheresearchliteratureindicatesthatlackofsleepleadstoerrorsindecisionmaking.AsIdiscussinmyTEDxtalksleep﹣lackingpeoplearenotefficientwithoutevenbeingawarethat. MycolleaguesandIstartedourresearchbasedonthatlackofsleepcanincreasenegativeresponsestotheinfraction.Sleep﹣lackingpeoplearemorelikelytointerpretanactioninanegativemanner.Thissuggeststhatpeoplewillconductinfractionsmorenegativelywhenthey'resleep﹣lacking.Inadditionlackofsleepmakesitmoredifficulttoregulatenegativeemotions.Thiscanmakepeoplemorelikelytobecomeangrymakingtheminturnmorelikelytorespondnegativelytopeoplewhoengageinpunishablebehaviors.Weassumethatsleep﹣lackingpeoplewouldbemorelikelytogiveharsherpunishments. Basedonthisfindingouradvicetomanagersistobeawareofthispotentialeffectonyourjudgment.Ifastaffengagesinapunishableinfractionafteryou'vehadashortnightofsleepyoumayallocateapunishmentthatisharsherthannecessarycontributingtoanunfairworkenvironment. Twopotentialwaystoaddressthiswouldbetoeitherdelaydecidingonadisciplinarymeasureuntilyouhavehadabetternightofsleepordeliberatelydiscountthemeasuretosoftentheeffectofyourlackofsleep.Giventhedifficultyofmeasuringthesecondapproachthefirstapproachisprobablythebetteroption.Anditbearsrepeating:Ifyouwanttobeabettermanageraimtogetatleasteighthoursofsleepeachnight. 28.Whatdoestheauthorsayaboutdisciplinaryactions? A.Employeesshouldbefired. B.Bonuseswillberemoved. C.Severerulesshouldbeperformed. D.Itishardtobalancethepunishments. 29.Theunderlinedwordundermineisclosestinmeaningto. A.change B.influence C.determine D.weaken 30.Whatwouldasleepymanagerdo? A.Realizethesideeffectofitandtakeactions. B.Throwmoreseverepunishment. C.Getridofthenegativeatmosphereinthecompany. D.Regulatethenegativeemotions. 31.Whichofthefollowingstatementsistrueaccordingtothetext? A.Agoodsleepleadstoafairenvironment. B.Unfairworkenvironmentisduetoweakpunishments. C.Itisnecessarytogivepunishmentsafteragoodsleep. D.Eighthoursofsleepeachnightisthebottomline.
有一包固体可能含有NaClNaOHNa2CO3Na2SO4MgCl2中的一种或几种.为确定其组成取少量固体加足量水溶解得到无色溶液M进行如图实验. 试推断 1白色沉淀B是填化学式. 2原固体中一定含有的物质是. 3无色滤液2中一定含有的阳离子是填离子符号. 4通过上述实验可知还有一种物质不能确定是否存在为进一步确定应采用的方法是.
15分Complaintsexisteverywherearoundyou.Ifyoudon'tbelievemecounthowmanytimesyoucomplainaboutsomethingorotherinoneday.Whetheritbeing61stickintrafficbeingbothered62theweathernotenoughmustardonyoursandwich63whateveritisthereareendlessinstances64youcanfindareason65complain.Wecomplainthatwedon'thaveenoughtimeandthatwedon'thaveenoughmoneyetc.IknowI'veexperiencedplentyof66unpleasantduetocomplainingaboutthingsIcan'tcontrol.Imaginehowmuch67happyyouwouldbeifyou68stopcomplaining?Muchofwhatyoucomplainaboutisoutsideofyourcontrolanyway.So69isthepointofcomplainingaboutsomethingyouhavenopowertochange?70simplebecomingconsciousofhowmuchyoucomplainisthefirststeptostopping.Whenyourecognizethatyou'recomplainingstopandtakenoticeofit.Askyourselfifyouwouldrathercomplainorbehappy.
如图是甲乙两种固体物质的溶解度曲线.下列有关叙述正确的是
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l0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处多者从笫11处起不计分. Nowadayswecanstillseesomebehaviorsagainstpublicmorals.Aswasoftenthecasepeopletendtotalkloudinpublicplacesannoyedothersaround.Spittingandlitteringrubbishcanbeseenanywhere.Besidesit'scommonthattheyoungormiddle﹣agedsitonthebuswhentheelderlyhavetostand. Measuremustbetakentochangethissituation.Firstofallasstudentsweshouldmanageourownbehaviorsbuthelppeoplearoundyouformgoodhabits.Meanwhileitisnecessaryforthegovernmentandsomeorganizationstoencouragepeopletobehaveproper. Don'tundervaluetherolewecanplaywith.Dorememberwecanmakedifference!Takeactionrightnow!
8分AprincipalinManhattaninformedparentsthattherewouldbenomorehomeworkforthepublicschool'sstudents.Andthencamethearguments﹣﹣﹣notfromteachersbutfromparents.Somesaidtheywouldtransfertheirchildrentoanotherschool.Somesaidtheywerefindingonlinesourcesofhomeworkfortheirchildren.TheywerenotconvincedbytheexplanationfromPrincipalJaneHsuaboutthenegativeeffectsofhomeworkonyoungchildrenincludinglackoftimeforotheractivitiesandfamilytimeandlossofinterestinlearning.Hsusuggestedchildrenshouldspendtheirtimeonactivitiesthathadbeenfoundtobegoodfortheiracademicsocialandemotionaldevelopment. AsasupporterofHsu'sapproachIwonderhowmanyoftheparentalargumentsoccurnotbecauseofwhatchildrenwillmissoutonbutbecauseparentsthemselvesnolongerfeelconfidentabouttheirabilitytohelptheirchildrendevelopwithouthighlystructuredactivitiestoguidethem. I'mremindedofameetingattheschoolmyyoungerdaughterwasabouttostartwhenshewas6.Theheadoftheschoolmetwithparentstosaythatshewasalsoconsideringdoingawaywithhomework.Onemomobjectedbecausehomeworkwasherspecialtimeeachdaywithherchildwhentheycouldsitdowntogethertogothroughthework.Theheadoftheschoolappearedsurprisedatthis.Shegentlysuggestedthatthemothershouldreadtoherchildorthattheyshouldcookdinnertogether. It'sbeensadtoseethatkidsbetweentheirstructuredsoccerpracticesandtheirhomeworkhaveverylittletimetoplay.Butit'sevensaddertoseetheparentalnervousnessaroundwhatmighthappentoathird﹣graderwhohasmoretimetocreatethinkreadinteractwithothersorimagine.WhatmighthappenIbelievemustbemorehappinessmoreenergyandbetterphysicalfitness. 32.Fromthepassageweknow. A.teachersarestronglyopposedtogivingnohomeworktotheirstudents B.theideaofnohomeworkhasledtoaheateddebate C.childrengreatlybenefitfromtheideaofnohomework D.otheractivitieshavetakentheplaceofthehomework 33.Whydidonemomobjecttotheideaofnohomeworkforkids? A.Herchildmightloseinterestinlearning. B.Herchildmighthavelesstimetothink. C.Sheenjoyedthetimedoinghomeworkwithherchild. D.Homeworkisgoodforchildren'sacademicdevelopment. 34.Whatistheauthor'sattitudetowardsPrincipalJaneHsu'ssuggestion? A.Indifferent. B.Positive. C.Negative. D.Critical. 35.Thepassageismainlyabout. A.whethertheparentsshouldtransfertheirchildrentopublicschool B.thebenefitsofdoinghomework C.thenecessityofchangingtheeducationsystem D.whetherthestudentsshoulddohomeworkafterschool.
25分你是李华端午节期间theDragonBoatFestival/Duanwufesttival你的一个朋友Smith准备到你所在的城市来旅游但你有事不能接机写封信给他. 内容包括以下要点: 1.解释你不能接机的原因 2.并说明端午节期间的安排. 注意:1.词数100左右; 2.可以适当增加细节以使行文连贯; 3.你可能用到的词汇ZongzitheDragonBoatRaces .
30分Aseveryoneouttheremylifealsoexperiencedupsanddownsandalotofgive﹣up41IamanAerospaceEngineerfromIndia.FrommyrelativesandclosefriendsIhavebeentoldthatit's42foranon﹣ITstudenttopursueMastersinITandgraduatefromafamousUSuniversity. Inevertookcoursesrelatedtocomputersorprogramming.Iwasneverinterestedtobeaprogrammerbutthings43.Computersgraduallybecamemy44andIrealizedIammoredependentoncomputersandIstarted45theback﹣endprocesseshappeninginsidetheCPUandIwasamazedbyitsthought.That'swhenIdecidedtopursuemastersinIT. 46itwasverydifficult.MyEnglishaccentwas47.AndIwasalsolacking48money.MostimportantlythecoursesseemednightmareswhenIfirstsawthem.49Inevergaveup.Itwasmyfatherthatpushedmeoutofmycomfortzoneand50confidenceinmetopursuethedegreeI51. Itookitasa52andneverthoughtaboutthefactthatIdon'thavemoneytoeatorIam53tothisprogrammingdegree.Ibelievedinhardworkwhichismy54.Sotheharddays55anditgot56everydaytounderstandthesubjectsandconcepts. Hardworkalways57.IgotsomeoffersandIdecidedtochoosethisuniversitywhichpromiseditsstudentstohelpthemgaintheknowledge58.RightnowIamgraduatingwithaGPAof3.96/4andanemployment59fromaMNCcompanyaskingmetostartrightaftermy60. 41.A.excuses B.reasons C.situations D.surroundings 42.A.uneasy B.difficult C.simple D.easy 43.A.happened B.worsened C.improved D.changed 44.A.companions B.teachers C.rivals D.colleagues 45.A.talking B.seeing C.imagining D.making 46.A.Initially B.Suddenly C.Lately D.Similarly 47.A.fluent B.thick C.international D.terrible 48.A.in B.for C.on D.with 49.A.Besides B.Therefore C.However D.Though 50.A.gave B.filled C.lent D.found 51.A.wanted B.got C.cherished D.achieved 52.A.challenge B.joke C.secret D.trick 53.A.eager B.hard﹣working C.experienced D.new 54.A.origin B.strength C.performance D.progress 55.A.passedaway B.passedonto C.passedby D.passedthrough 56.A.harder B.worse C.mucheasier D.muchstranger 57.A.paysfor B.paysoff C.comesback D.comestrue 58.A.hardly B.mentally C.practically D.suddenly 59.A.rate B.determination C.offer D.arrangement 60.A.congratulation B.graduation C.gratitude D.contribution
30分Welostanothertreeinourlaststormanditbrokemyheart.Wehavelostmanytreesthroughtheyearsbutthisonewas41. About17yearsagoIplanted10Canadianbluespruceseedlings树苗alongthedriveways.AndIdidallIcouldto42them.Shortlyafterthatastormrippedthroughourareaand43manytrees.Myseedlingssurvived.Butwhenwedecidedto44ourneighborinsellingourdownedtreeswehadto45theseedlingstokeepthemfromgettingdestroyed.46fiveofthe10bluesprucetreesdidn'tsurvivebeingmoved. Ofthefivethat47threewereinourfrontyardwhereIcouldwatchthemgrowintomaturetreesfrommyfrontwindow.WhenoneofthebigDouglasfirs花旗松thattowered48themdiedwedecidedtocutitdownbeforeitfell.Aftermuch49myhusbandandmysondecidedtheycoulddropitwithout50anyofthebluesprucetrees.Iwatched51asthedramaunfoldedprayingthewholetimeI52thechainsaw电锯.Thefirfellrightbetweentwoofthem53plannedandmytreescontinuedtogrow. ThenonenightIwaslyinginbedduringyetanother54andheardaloudnoisefollowedbythesoundofatreecrashingdown.ThenextmorningI55tofindthelargestofourbluespruceslyingontheground;Iwasincrediblyupset.For17yearsI'd56watchingitgrowfromaseedlingtoatreenearly40feettall.Nowitwas57. Losingmytreewashardto58eventhoughIknewitwasnature'sway.IalsoknewtherewasonlyonethingIcoulddoaboutit.Another10newseedlingsrecentlyarrived.Iplantedthemina59spotclosetothehouse.Whenthey'realittlelargerI'lltransplantthemtoapermanentspotwhereIcan60themgrowtallandbeautiful. 41.A.significant B.different C.valuable D.unaffordable 42.A.protect B.grow C.attend D.develop 43.A.rippedoff B.stoleaway C.tookdown D.blownup 44.A.persuade B.resist C.appreciate D.join 45.A.cover B.transplant C.move D.preserve 46.A.Disappointedly B.Consequently C.Unexpectedly D.Sadly 47.A.left B.lived C.moved D.sold 48.A.upon B.down C.over D.through 49.A.debate B.design C.measure D.consideration 50.A.stretching B.reaching C.threatening D.hitting 51.A.breathlessly B.excitedly C.attentively D.carefully 52.A.held B.stuck C.heard D.operated 53.A.after B.as C.when D.though 54.A.nightmare B.drama C.windstorm D.weekend 55.A.woke B.happened C.rushed D.came 56.A.accustomed B.finished C.managed D.enjoyed 57.A.fallen B.gone C.done D.lost 58.A.believe B.endure C.accept D.adapt 59.A.secret B.safe C.convenient D.hidden 60.A.accompany B.watch C.imagine D.shelter
砒霜的主要成分为三氧化二砷化学式为As2O3可用于治疗肿瘤.其中砷元素的化合价是
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处多着从第11处起不计分. LastAugustIwenttoSacramentoUSA.I'dbelookingforwardtoitforagesbutintheenditturned outtobetheworstholidaysofmylife.Mymotherwasbornherebutshehadn'tbeenbackforvisitfor twentyyearssoshehaddecidedtocomewithoutme.WhenourplanetoucheddownIlookedoutof thewindowincuriositybutshockedtofinditwaspouringdown!Mymumsaidnottoworry astheweathercouldchangeveryquick.InallwespenttwoweeksinSacramento.Believeitornot thesundoesn'tcomeoutevenonce!Insteadofgoingtothebeachorsightseeingwespentmostdays visitingmuseumsandwentshopping.ItcertainlywasnottheholidaythatIhadexpectedfor.
8分AboutthreedecadesagoChinawasknownastheBicycleKingdom.Butlateronbikeswerereplacedbytheirfuel﹣poweredcompetitors. ButrecentmonthshaveseenarevivalofthehumblebikeacrossChinawithanincreasingnumberofpeoplechoosingcyclinginsteadofdrivingtoschoolstoworkplacesortodosightseeing.Theintroductionofbike﹣sharingschemespioneeredbystart﹣upslikeOfoandMobikehasbroughtthetrendtoanewlevel. Peoplecanunlockthesharedbikesbysimplyusingtheirsmartphone.ThebikesareequippedwithGPSandcanbeleftanywhereinpublicforthenextuser.They'repopularamongmanyChinesepeopleastheyprovideaneffectivesolutiontothelastmileproblemwhichreferstothefinallegofaperson'sjourney. Inplaceswherethesubwaydoesn'textendwhereit'sdifficulttochangefromonekindoftransporttoanotherit'ssoeasytogetwhereyouwanttogowithMobikeHuHong29toldAFP.ShepedalstoherShanghaireal﹣estatejob. Howevertheschemeshavealsoledtoproblemssuchasillegalparkingvandalismandtheft.LastmonthtwonursesinBeijingwereplacedunderadministrativepunishmentforfivedaysforputtinglocksontwosharedbikes.AndinDecemberamanwhostoleasharedbikewassentencedtoa3﹣monthdetentionwitha3﹣monthprobationandfined1000yuanbytheShanghaiMinhangPeople'sCourt. Bike﹣sharingisagreenermethodoftransportationandprovidesauser﹣friendlyexperiencesaidLiuXiaomingvice﹣ministeroftransport.Butit'sacombinationofonlineandofflinebusiness.Operatorsareusuallystronginonlineservicesbutlackofflinebusinessexperiencewhichcausesproblems.Todealwiththeseproblemsthecompanycameupwiththeideaofencouragingpeopletoreturnthebikestostationsbyrewardingfreetimefortheirnextrides. 32.Whohasbroughttherevivalofbiketoanewlevel? A.Thelocalgovernment B.Thebusinessman C.Thestudentsandworkers D.Thepioneeredstart﹣ups 33.Whichofthefollowingdoesn'tbelongtothelastmileproblem? A.Missingthebusinessplanefortrafficjam. B.Togettosomewherethesubwaydoesn'treach. C.Havingtroublesinchangingfrombustotaxi. D.Havingnofinallegofaperson'stravel. 34.Whatreasoncausesmanyproblemsinbike﹣sharing? A.Somepeoplemakedamagetothebikesonpurpose. B.Operatorslackofflinebusinessexperience. C.Thebike﹣sharingbusinessistoocomplicatedtorun. D.Therearenorelativelawsonthisbusiness. 35.What'sthebesttitleofthispassage? A.BicycleKingdombecamefamousagain. B.Anewwayoftransportation. C.Ridingbikesforfree. D.Bikespedalingbackintostyles.
1用化学式填空石墨改良酸性土壤的碱. 2火箭推进器中装有液态肼N2H4和过氧化氢当它们混合反应时放出大量的热量同时产生一种气态单质和一种常见的液体写出有关反应的化学方程式. 3在一定条件下A和B两种物质发生反应生成C和D.如图为该反应的微观示意图. ①从微观角度分析该反应的实质是. ②该反应中生成C和D的质量比是. 4在托盘天平灵敏度极高两边各放盛有等质量等质量分数足量稀硫酸的烧杯天平平衡.向左烧杯中加入一定质量的金属M同时向右烧杯中加入相同质量的金属N观察到从反应开始至结束天平指针始终偏向右边注反应中都生成十2价的硫酸盐.则 ①MN两种金属的活动性由强到弱的顺序为. ②MN两种金属的相对原子质量由大到小的顺序为.
15分Forcenturiesaroundtheworldpeoplehaveinventedmanypastimestokeepthem61entertain.We'reluckyenoughtolivein62timewhenalotofushavealotoffreetimewhichmeanswe're63constantinventingandre﹣inventingsportssoitisnot64surprisethattheworldofathleticcompetitionsometimesbecomesstrangerandstranger.Howevertheworld'sweirdestsportsarenotnew65wereinventedeons千万年agobeforepeoplehadtheInternettoentertainthem. Finlandisacountrythatinventedthesportofwife﹣carrying.Thesportisbasicallyanannualcompetition66husbandsrunanobstaclecoursewhilecarryingtheir67wifeontheirbacks.Themostfamouscompetition68holdinSonkjarviFinland.Therearedifferentcarryingstylesinvolvingpiggybackingfireman'scarryandtheEstonian﹣stylewherethewomanhangsupside﹣down69herlegsaroundtheman'sshoulders.Thesporthasspreadtootherpartsoftheworld70includetheUSandAustralia.
6分ItwasdaysorevenweekssinceIhadbeenleftontheisland.MyonlycompanionwasadogcalledPhillywhichhadsurvivedtheshipwreck.Memoriesofwhathappenedwerestillfresh. Themagnificenceoftheshiphadgivenusallafalsesenseofsecurity.Asthefirstsignsofthestormstartedourcaptainannounceditwasnothingmuchjustanotherstorm.Yethewaswrong!Thestormhittheshipsobadlythatlargeholesweremadeatthesidesoftheship.Asthefreezingwaterstartedrushinginourshipwasconsumedquicklybythedarkwater. MytrainofthoughtwasdisturbedbyPhillylickingmyhanddearly.Areyouhungry?Ispokemyfirstwordseversincetheshipwreckoccurred.Woofwoof!BarkedPhillyenthusiastically.Atthismomentmystomachgavealoudgrowltoo.Icouldnotrememberwhenmylastmealwasprobablyaten﹣coursedinnerontheship.AsIhadneverfishedbeforeIthoughtmaybeIcouldtrysomethingsimplerlikepickingfruits.WithPhillyatmysidearmedwithasharpbranchwewalkedintotheforestontheislandtogether.SuddenlyIthoughtIheardnoises.Couldtherebeanyoneelseonthisisland?Iwondered.Aswewerelookingforfruittreeswechancedupononethatboreyellowjuicy﹣lookingfruit.Phillystartedbarking﹣wehadcompany.Itwasadark﹣skinnedwomanholdingasharpspeardressedinfurandgrass.Ibackedawayfromherafraidthatshewouldbeaggressive.ThenIsawthatshewastryingtosaveus.Pointingherspearatthefruittreesheshookherheadstrongly. InoddedathertoshowIunderstoodwhatshewassaying.SignalingtoustofollowhersheturnedtowalkalongasmallpaththatIhadnevernoticed.Attheendofthesmallpaththerewasasmallvillage.Tearsofjoyfilledmyeyes. 21.Thewriterhadbeenleftontheislandbecause. A.thecaptainhaddesertedhim. B.hewantedtoexploretheisland. C.hisshiphadcrashedinthestorm D.hisshiphadbrokendownintheshallowwater. 22.WhichofthefollowingstatementsistrueaboutthedogPhilly? A.Hewasfriendlybutaggressive. B.Hewasalsoasurvivaloftheshipwreck. C.Hehadbeenbroughttotheshipbythewriter. D.Hewasleftalonewhilethewriterwentforfood. 23.Thewomanpointedherspearatthefruittreeintendingtotellthewriterthat. A.thefruitswerenotthebestchoice. B.thefruitswereunfitforfood. C.hewasprohibitedtopickthefruits. D.thefruittreewasdangerous.
8分IwasjustinFrancetovisitmygrandmotherwhoisverydeartome.Idon'tgettocrosstheAtlanticveryoftenandshe'snow96yearsoldsoeverytimeIvisitherthetwoofusareveryawarethatitmightbethelasttimeweseeeachother. LastyearIdidaseriesofshortvideointerviewsaboutherlife.Iaskedherwhatitwaslikegrowingupwithherfatherinthe1910sandlivingalonewithtwoyoungchildren.Iaskedherabouthergreatestmemoriesandherfavoritebooksfoodsetc.IlearnedalotofamazingnewthingsaboutherIhadneverknownbefore.Thesewereveryintimateconversationswhichmademebetterknowher. ThisyearIdidnotreallyhavequestionsandIonlyhadagreatdesiretomakeherknowhowmuchIlovedher.Icookedforherandreadherstories.Igaveherafootmassage按摩whichwasherfirstever! BeforeleavingIwaslookingforawaytoleavesomethingmeaningfulbehindbesidesthememoryofourtimetogether.ThereforeIwroteherfivedifferentlovenotesandhidthemindifferentplaceswhereIknewshewouldeventuallyfindthem. IleftreallyjoyouslyknowingthatthesecardswouldsurelycheerherupafterIleft.ShecalledmeasIwastravellingbacktoParistocatchmyplanebacktotheUSandsaidIfoundyourcards!BythetimeIdiscoveredthelastoneIwaslaughingoutloud!Thankyousomuchmysweetheart!Ismiledtomyselfknowingshestillhadtwomoretogo!ItwasSundaysomyguesswasthatshehadnotcheckedhermailboxandhadnotyetdrivenhercar! 1.TheunderlinedwordintimateinParagraph2probablymeans A.close B.inspiring C.impressive D.usual 2.Whatcanbeinferredfromthepassage? A.TheauthorwenttoFrancetovisithergrandmotherveryfrequently. B.Theauthordidn'texpecthergrandmothertofindallthefivecards. C.Theauthorandhergrandmotherenjoyedthetimetheystayedtogether. D.Theauthor'shomeisnotfarfromhergrandmother's. 3.Fromthelastparagraphweknowthat A.grandmotherfoundallthecardsimmediatelytheauthorleft. B.grandmotherhadnotcheckedhermailboxbeforethecall. C.grandmotheralwayscallstheauthorbeforeshegetsontheairplane D.grandmotherdoesexercisesbyfindingthecards. ~~4.Whatmightbethebesttitleofthepassage? A.Thewonderfultimewithgrandmother B.Themeaningfullovenotes C.Thepersonwhoinfluencesmemost D.Thefamilyhasanoldatreasure.
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一篇作文.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. Timeisvaluablebutlimit.ThereisafamoussayingTimeislifethisshowstheimportanceoftime.Whentimehadgoneit'llneverreturn.It'sapitywhenmanypeoplemakepooruseoftime.Theyspendtheirprecioustimeoversleepingdrinkingandhangingaround.Theydon'trealizewastingtimeisequalwithwastingtheirlife.Theyalwaysregrethavingmadelittleachievementsofar.Howeverweshouldformthehabitofvaluetime.Don'tputoffwhatcanbedonetodaytomorrow.Lazinesswillnotonlybringusthefailurebutalsoleadustotheroadtopovertyandevendeaths.
物质的下列用途主要利用其化学性质的是
6分BritishAirwaysbookingsecrets﹣andthebestlatedealsthisweek:ShortholidaysandEuropeancitybreaks. Dublinfrom£109pp:EnjoytheEmeraldIslewithouttheStPatrick'sDaycrowds.Departing20thMarchthispackageincludesatwonightstayatthefour﹣starKingsWoodHotelCitywestandreturnflightsfromLondonStansted.Clickhere. Brugesfrom£159pp:Treatmumtoamother'sdaycitybreakinthemedievalfairy﹣taletownofBrugesandenjoycanal﹣sidestrollsandanicehelpingofculture.Priceincludestwonightsatthefour﹣starNHBruggewithtravelfromLondonStPancrasdeparting20thMarch.Clickhere. Madridfrom£166pp:FlyfromLiverpoolonMarch27forthreenights'B&Batthethree﹣starEspahotelPlazadeEspana.RealMadriddon'thaveafootballgamethensoseeifRonaldofanciesacerveza.Clickhere. FrenchAlpsfrom£499pp:Saveover£320eachonaweek'sskiingatLesArcs2000stayingcateredattheChaletVanoise.BasedontwosharingandincludesflightsfromManchesteronMarch18andtransfers.Six﹣dayliftpassesfrom£219equipmenthirefrom£65.Clickhere. Tenerifefrom£289pp:GetyourtanonearlywithatriptotheEuropeanhomeofbeaches:Tenerifewithitspostcardperfectgoldensand.Spendsevennightsatthefour﹣starHotelSpaLaQuintaParkSuitesdeparting6thMayandincludingreturnflights.Clickhere. 21.Whichdestinationisthecheapest? A.Dublin. B.Bruges. C.FrenchAlps. D.Tenerife. 22.WhatspecialfeatureisMadridnotedfor? A.Skiing. B.Football. C.Sunshine. D.Culture. 23.Wherewouldyoumostprobablyseethistext? A.UKairlines. B.Amagazine. C.ATVprogram. D.TheInternet.
现有甲乙丙三种金属如果把甲和乙分别放入稀硫酸中甲溶解并产生氢气乙不反应如果把乙和丙分别放入硝酸银溶液中过一会儿在乙的表面有银析出而丙没有变化根据以上事实则甲乙丙的金属活动性由强到弱的顺序是
有一不纯的Na2CO3样品杂质可能是K2CO3CaCO3FeCl3和NaCl中的一种或几种取该样品10.6g加入足量稀盐酸完全反应后得到无色容液同时产生4.4g气体下列判断正确的是
10分TheInternethasopenedupawholenewon﹣lineworldforustomeetchatandgowherewe'veneverbeenbefore.Butjustasinface﹣to﹣facecommunicationtherearesomerulesofbehaviorthatshouldbefollowedwhenonline.36.Imaginehowyou'dfeelifyouwereintheotherperson'sshoes.Foranythingyou'reabouttosend:askyourselfWouldIsaythistotheperson'sface?Iftheanswerisnorewriteandreread.Repeattheprocesstillyoufeelsurethatyou'dfeelcomfortablesayingthewordstotheperson'sface.Ifsomeoneinthechatroomisrudetoyouyourinstinctistofirebackinthesamemanner.37.Youshouldeitherignorethepersonoruseyourchatsoftwaretoblocktheirmessages.Ifitwascausedbyadisagreementwithanothermembertrytofixthesituationbypolitelydiscussingit.Remembertorespectthebeliefsandopinionsofothersinthechatroom.38.Offeradvicewhenaskedbynewcomersastheymaynotbesurewhattodoorhowtocommunicate.Whensomeonemakesamistakewhetherit'sastupidquestionoranunnecessarilylonganswerbekindaboutit.Ifit'sasmallmistakeyoumaynotneedtosayanything.Evenifyoufeelstronglyaboutthinktwicebeforesayinganything.Havinggoodmannersyourselfdoesn'tgiveyoulicensetocorrecteveryoneelse.39.Atthesametimeifyoufindyouarewrongbesuretocorrectyourselfandapologizetothosethatyouhaveoffended.40.Theexceptionisthatyouknowthepersonverywellandyouarebothcomfortablewithsharingpersonalinformation.Otherwisedon't.A.Buttrynottodoso.B.Everyonewasnewtothenetworkonce.C.Ifyoudecidetotellsomeoneaboutamistakepointitoutpolitely.D.Somepeoplespeakingrudelyormakingmistakesonlineisnaturalandcommon.E.Thebasicruleissimple:treatothersinthesamewayyouwouldwanttobetreated.F.Ifyouwanttosendshortmessagestoothersonlinebesuretosaysomethingpolitefirst.G.Itisnotgoodmannerstoaskotherspersonalquestionsorinquireabouttheirprivateaffairs.
25分假定你是李华你的好朋友Judy因考试发挥失常导致成绩不理想而情绪低落.请你给他写封信表示安慰要点如下: 1对她目前状况表示理解; 2建议她找出失常的原因并吸取教训; 3鼓励她树立信心争取下次考出好成绩. 注意: 1词数100左右; 2可以适当增加细节以使行文连贯; 3开头已给出不计入总词数. DearJudy I'msorrytohearthatyoudidn'tdowellinyourexamand Yours LiHua.
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