首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
用如图所示的装置验证牛顿第二定律．两个相同的小车放在光滑水平板上，前端各系一条细绳，绳的另一端通过定滑轮各挂一个小盘，盘中可放砝码．小盘和砝码所受的重力，等于使小车做匀加速运动的力．因此，增减小盘中...
查看本题答案
包含此试题的试卷
高三下学期物理《》真题及答案
点击查看
你可能感兴趣的试题
某实验小组利用如图甲所示的装置验证牛顿第二定律他们将拉力传感器一端与细绳相连另一端固定在小车上用拉力
如图甲为验证牛顿第二定律的实验装置示意图.平衡小车所受的阻力的操作:取下把木板不带滑轮的一端垫高;接
在验证牛顿第二定律的实验中当小车质量m不变时a-F图象如图4所示则小车的质量m=______.
如图9所示的装置可用于验证牛顿第二定律在气垫导轨上安装两个光电门小车上固定遮光板细线一端与小车相连另
在验证牛顿第二定律的实验中采用如右图所示的实验装置在探究加速度a与所受外力F.的关系实验过程某小组得
如图所示是某同学所安装的验证牛顿第二定律的实验装置在图示状态下开始做实验该同学的装置和操作中的主要错
某研究性学习小组用如图所示的装置探究牛顿第二定律.该小组在实验中确定的研究对象是小车而且认为细线对小
有人设计了一种交通工具如图所示在平板车上装了一个电风扇风扇转动时吹出的风全部打到竖直固定在小车中间的
根据牛顿第二定律，这种设计能使小车运行
根据牛顿第三定律，这种设计能使小车运行
这种设计不能使小车运行，因为它违反了牛顿第二定律
这种设计不能使小车运行，因为它违反了牛顿第三定律
如图所示的装置由气垫导轨两个光电门滑块和沙桶等组成光电门可以测出滑块分别通过两个光电门的瞬时速度导轨
用该装置可以测出滑块的加速度
用该装置验证牛顿第二定律时，要保证拉力近似等于沙桶的重力，必须满足M>>m
可以用该装置验证机械能守恒定律，但必须满足M>>m
不能用该装置验证动能定理。
如图所示为某同学安装的验证牛顿第二定律的实验装置在小车的前端固定一个传感器和砂桶连接的细线接在传感器
如图所示的装置由气垫导轨两个光电门滑块和沙桶等组成光电门可以测出滑块分别通过两个光电门的瞬时速度导轨
某同学利用验证牛顿第二定律的实验装置来验证动能定理在一端带滑轮的长木板上固定放置两个光电门其中光电门
根据牛顿第二定律F=mA.下列说法错误的是
一定的力F作用于不同质量的物体，所产生的加速度与它们的质量成反比；
牛顿第二定律中的力F指物体所受到的合外力；
牛顿第二定律中的力F和加速度是对应的，两者同时出现，并且方向相同；
牛顿第二定律中的力F和加速度是对于不同的物体而言的。
在验证牛顿第二定律的实验中某同学作出了如图所示的A.B.两图象图A.中三线表示实验中________
某同学做验证牛顿第二定律的实验实验装置如图所示采用控制变量法研究加速度与合力的关系时根据测量数据绘制
在验证牛顿第二定律的实验中研究力和加速度的关系时要保证不变.实验中打出的一条纸带如图所示则从纸带上可
如图所示是某同学所安装的验证牛顿第二定律的实验装置在图示状态下开始做实验该同学的装置和操作中的主要错
有人设计了一种交通工具在平板车上装了一个电风扇风扇运转时吹出的风全部打到竖直固定在小车中间的风帆上靠
根据牛顿第二定律，这种设计能使小车运行
根据牛顿第三定律，这种设计能使小车运行
这种设计不能使小车运行，因为它违反了牛顿第二定律
这种设计不能使小车运行，因为它违反了牛顿第三定律
某实验小组利用如图甲所示的装置验证牛顿第二定律他们将拉力传感器一端与细绳相连另一端固定在小车上用拉力
4分某同学做验证牛顿第二定律的实验实验装置如图所示采用控制变量法研究加速度与合力的关系时根据测量数据
热门试题
更多
Ifyou'replanninganItalianvacationthereisawealthofinformationonlinethatyoucanaccessforfree.FindoutwheretogoandwhattoseewithanItalyblog. YounginRome Thisisagreatsitefortheyoungertravelers.Itscontentisprovidedbylocals.YounginRomemostlycentersonthingstodoandsee.Artexhibitionseventsandconcertstakeupmostofthefocus.ThereisalsoadailywordofthedaypostwhichwillhelpyouexpandyourItalianvocabulary. FodorsTravelBlog YoucanbenefitfromsomegreattipsfromFodorsTravelBlog.AwidevarietyofdestinationsarecoveredincludingItaly.CheckoutgreatpoststohelpyoufigureoutwhattodoandwhatnottodoinItaly.Ifyou'revisitingotherdestinationsinEuropethisisaveryhelpfulresource. ItalyBeyondtheObvious Thisisablogfortravelerswhowanttostayoffthebeatenpath.YouseemoreofthecultureofItalybykeepingclearorpopulartouristdestinations.TherearedescriptionsofWalkingandbikingsuggestions. SelectItalyBlog ThesiteoffersadviceonEuropeantravel.Therearealsopostsabouteventsandexhibitionsinthecountry.Thisisacompanyblogforatravelbusinesssoitalsooffersservices.Howeveryoudon'tneedtouseitsservicestotakeadvantageofthegreatadviceoffered. DreamtoItalyBlog ThisblogcoversnewsandcurrenteventsinItaly.YoucanfindseveraldifferentthingstodosuchastakingaclassatanItaliancookingschool.ThesitealsohasinformationonItalianrealestate房地产ifIwanttomakeyourvacationpermanent. 21.Whatisthepurposeofthispassage? A.ToencouragepeopletotourItaly. B.TogivetraveltipsforvisitingItaly. C.TointroducesomeattractionsinItaly. D.TorecommendsomeItalytravelblogs. 22.WhatdoFodorTravelBlogandSelectItalyBloghaveincommon? A.BothoffertraveladviceonEuropeantravelsincludingItaly. B.BothhaveavarietyofpostsabouteventsandexhibitionsinItaly. C.Bothhavehelpfulresourcesofferinggreattraveltipsandsevices. D.BothfocusonArtexhibitionseventsandconcertsItaly. 23.Ifyoudislikecrowdedtouristdestinationsyoumaygetusefulinformationfrom. A.DreamofItalyBlog B.YounginRome C.ItalyBeyondtheObvious D.SelectItalyBlog.
Ifyourlifefeelslikeitislackingthepowerthatyouwantandthemotivationthatyouneedsometimes61youhavetodoisshiftyourpointofview. Yourlifecanbeenhancedandyourhappiness62richwhenyou63choicetochangeyourperspective.Don't64yourfuturetochanceorwaitforthingstogetbettermysteriouslyontheirown.Youmustgointhedirectionofyourhopesandaspirations.Begintobuildyour65confidentandworkthroughproblemsratherthanavoidthem.Rememberthatpowerisnot66necessarytocontroloversituationsbutthe67abletodealwithwhatevercomesyourway. Alwaysbelievethatgoodthingsarepossibleandrememberthatmistakescanbelessonsthatleadto68discover.Takeyourfearandtransformitintotrust;learntoriseaboveanxietyanddoubt.Turnyourworryhoursintoproductivehours.Taketheenergythatyouhavewastedanddirectittowardeveryworthwhileeffortthatyoucanbeinvolvedin. Youwillseebeautifulthingshappenwhenyouallow69toexperiencethejoysoflife.Youwillfindhappinesswhenyouadoptpositivethinkingintoyourdailyroutineandmake70animportantpartofyourworld.
Theholidaysdon'thavetobehardonyourfigure.WeaskedpastwinnersofNBC'sTheBiggestLoserhowtheylosttheirweight. 1.Don'tlettheweatherstopyou. Thewinterwasfrighteningmeaway﹣IwasafraidIwouldn'tbeabletoexercise.SoI'mlearningtoplayicehockey曲棍球!Tokeepyourselfgoingfindthingsthatarefunforyou. ﹣HelenPhillipsseason7 2.Getbackupafteryoufall. Ilost214poundsonTheBiggestLoserbutfinallytheweightstartedtoreturnbecauseIstoppedmakingtheeffort.Ihadtoremember:goingtothegymisnotapunishment﹣it'ssomethingIdobecauseIcareaboutmyself. ﹣ErikChopinseason3 3.Rememberthatageisjustanumber. BeforeIwentontheshowIsatonthesofaandlivedmylifethroughtheTV.NowinadditiontoicehockeyI'vetriedrunningandI'vebecomearunner﹣andI'm50yearsold!Ifyouwanttolosetheweightaskyourself:isitthatIcan'torthatIwon't? ﹣HelenPhillips 4.Setsmallgoalsandcelebratewhenyoureachthem. Ineededgoalsdifferentthingstogoafterinaday﹣adistancethatyoucancoveroraweightgoal.WithoutthemIwasn'tcelebratingmyselfenoughandIgotreallygoodatbeatingmyselfup. ﹣AliVincent 5.Squeeze挤itin. WhenI'minthestoreI'lldolungesupanddownexercise.Inthecheckoutlineyoucoulddosquats.IusedtoworryaboutwhatpeoplethoughtofmebutIdon'tcareanymore.IknowI'mgoingtogetthelastlaugh. ﹣AliVincent 21.Whichofthefollowingpersonsadvisesustogobacktothegymoftenafterlosingweight? A.HelenPhillips B.ErikChopin C.AliVincent D.None 22.AccordingtothepassagewecaninferTheBiggestLoseristo. A.exerciseyourself B.maketheweightoff C.havefun D.playicehockey 23.AliVincentwantstoadvise. A.takingexerciseinwinterdays. B.gettingreallygoodatbeatingyourselfup. C.settingsmallgoalsandcelebratingwhenwesucceed. D.sittingonthecouchandlivingourlifethroughtheTV. 24.Thispassagemostlikelycomesfrom. A.ahealthreport B.anovelonlosingweight C.asciencemagazine D.anewspaper.
假定你是李华你的美国朋友Jack因爸爸过度饮酒而感到非常苦恼就此请你用英语给他写一封邮件.主要内容包括:1.表示安慰;2.给出建议;3.寄予希望. 注意:1.词数100左右;2.可以适当增加细节以使行文流畅;3.开头和结尾已给出不计入总词数. DearJack I'msorrytohearthatyourfatherisaddictedtodrinking. Bestwishes.I'mlookingforwardtoyourreply. Yours LiHua.
已知复数z满足1+i•z＝1﹣i则z的共轭复数＝
Sevenyearsagobackin2010somereportscoveredastorythattheworld'slongestrailwaytunnelwasunderconstructioninSwitzerland.Atthatpointithadalreadybeenunderconstructionforoveradecade.Ithadbeenvotedtobebuiltnearlyaquarterofacenturyago!Theideatobuilditcoulddatebacktonearly70yearsago﹣aboutasoldassomeofyourgrandparents! Yesterdayitwasfinallyready! It's35mileslongandruns7500feetbeneaththeSwissAlpsafamousmountainrangeinSwitzerland.Itevenrunsunderanoldtunnelthatwastherebefore.Ittookatotalof17yearstobuildatacostof$12billion128milliontonsofrockweredug.Twomilliontruckloadsofearthwereremoved! ThetunnelconnectsnorthernandsouthernEurope.TheopeningofthistunnelwassuchabigdealthattheGermany'sleaderChancellorAngelaMerkelFrance'spresidentFrancoisHollandeandItaly'sprimeministerMatteoRenziwerealltheretocelebrateaswasAustria'schancellorChristianKern. It'scalledtheGotthardBaseTunnel.Eventually325freightandpassengertrainswillgothroughthetunnelrelievingalotoftrafficontheroadwaysthereandmakingitamoreenvironmentallyfriendlyoption.TheGotthardBaseTunnelisawonderofengineering!Makeuswanttovisitit! 24.WhendidpeoplefirsthavetheideaofbuildingtheTunnel? A.About70yearsago. B.Halfacenturyago. C.Twentyfiveyearsago. D.Sevenyearsago. 25.WhatcanwelearnabouttheTunnel? A.Itusedtobeanoldtunnel. B.Ithasjustbeencompleted. C.ItconnectsallEuropeancountries. D.Itrunsoverarangeofmountains. 26.WhatmaybethepurposeofbuildingtheTunnel? A.Toimprovetraffic. B.Toincreaseemployment. C.Toattractdonation. D.Tostoppollution. 27.WhatcanbeinferredabouttheTunnel? A.Itwillcauseconflictsamongcountries. B.Itwillbeoflittlebenefittothelocals. C.Itmaydodamagetotheenvironment. D.Itmaybecomeatouristattraction.
WheretoDrink CafeSanBernardo Jointable﹣tennisandpool﹣playingport.CafeSanBernardohasbeenrunningsince1912.TheVillaCrespodivebaralsooffersuptablefootballfor￡4anhour.Serviceisefficient;withlastordersat5am.Thedailyhappyhourbetween6pmand9pmincludes60minutesplayingyourgameofchoiceplusahalf﹣bottleofredwineandacornpiefor￡9. ●AvenueCorrientes5436VillaCrespo541148053956cafesanbernardo.com MSalumeria&Enoteca Tradingonlyinwinewithastorysommelier侍酒师MarianaTortachoosesnewwaysonadailybasisandkeepsalistofaround250labels.There'snowinemenu﹣simplytakeyourbottlefromtheshelf. ●Open11:00am﹣11:30pmElSalvador5777PalermoHollywood541147789016onFacebook NegroCuevadeCafe CoffeehasfounditsplaceinBuenosAires.WhileLAB:TostadoresTheShelterandCoffeeTownarefamousnewplacesNegroCuevadeCafeisoneofthebestdowntown.ItservesEcuadorianColombianandBrazilianbeansanditsattractingcakesincludecroissant. ●Open9:30am﹣7:00pmSuipacha637Microcentro541143223000negrocuevadecafe.com LaCalle HeadtotheNicetoVegaaddressandyou'llbefacedwithapizza.Don'tworryit'stherightplace.LaGuitarritaisthefronttohiddenbarLaCalle.Orderthehousecocktailspecialcandyandpreparetosinguntildawnwithahigh﹣energyyoungcrowd. ●Open8:00pm﹣2:00amNicetoVega4942PalermoSoho541139141972onFacebook 21.Whichnumbershouldyoucallifyouwanttodosomesports? A.541147789016. B.541148553956. C.541143223000. D.541139141972. 22.WhencanyougotoMSalumeria&Enoteca? A.Allday. B.1:00am. C.3:00pm. D.10:00am. 23.WhatmakesLaCalledifferent? AItshavingspecialcandy. B.Itshavingnowinemenu. C.Itsallowingyoutoplaygames. D.Itsopeningforthelongesttime. 24.Whatlstheauthor'spurposeinwritingthetext? A.Toshowwineculture. B.Tointroducesomewinebars. C.Tohelppeoplechoosedrinks. D.Toshowhowtoenjoyyourself.
HowtoSleepBetter Ifyou'rehavingtroublegettinggoodsleepthroughthenightturningwakingupmorethanonceforexamplethistextwilltellyouwhatyoucandotoensureapeacefulnight'ssleep. 1.Getonschedule.Changingyoursleepingtimebymorethananhourcanseverelydisturbyoursleepquality.36Forexampleifyounormallywakeupat6amonweekdaystogettoworkyoumightgotobedaround10pmbecausethat'swhenyoustarttofeelsleepyandit'salsoagoodtimetoensure8hoursofsleep.Ifontheweekendyousleepuntil9amyouprobablywon'tbeabletofallasleepthatnightuntilIam. 2.Bemindfulofwhatyoueatordrinkbeforebed.37Digestionslowsdownwhileasleepandafullstomachmayinterruptsleep.Similarlyyoushouldavoidgoingtobedonanemptystomachasacompletelyemptystomachmayequallydisturbyoursleepingpatterns. 3.38Exposuretolightduringthetimewhenyou'resupposedtobesleepingcandestroyyourbody'sinternalclock.Turnyourlightofforuseaverydim暗淡的nightlight.39TheyincludewindowsLEDclocksandcomputerlights. 4.Changeyoursleepingposition.Youmaythinkthatit'simpossibletocontrolwhatpositionyousleepinsinceyouaren'tfullyawareofwhatyouaredoingbutitispossibleanditcanmakeaconsiderabledifference.40 A.Trytoavoidallsourcesoflight. B.Keeptheroomasdarkaspossible. C.Makenoteofunusualcircumstances. D.Waitatleastthreehoursafterdinnerbeforegoingtosleep. E.Sleepisconsideredtobeadequateonlywhenthereisnodaytimesleepiness. F.Inotherwordssuddenchangeofsleepingtimewillaffectyourbiologicalclock. G.Ifyouwakeupinthemiddleofthenightmakeanefforttohaveacomfortableposition.
Hereisatruestory.Amancameoutofhishometoadmirehisnewtruck.Tohissurprisehisthree﹣year﹣oldsonwashappilyscraping刮theshinypaintofthetruck61useasharpknife.Themanrantohissonanddrovehimaway.62scaretheboyranawayquickly.Unfortunatelytheboyfelldownandhurthisrighthand63seriouswiththeknifestickingintohisfingers.Thefatherrushedhissontothehospitalimmediately. Althoughthedoctortrieddesperately64savetheinjuredfingershefinallyhadtocutthemoff.Whentheboywokeupfromthe65operateheinnocentlysaidDaddyI'msorryaboutyourtruck.ThenheaskedBut66aremyfingersgoingtogrowback?Thefatherbegancryingsadly67hisheaddown. Thinkaboutthisstorythenexttimesomeone68steponyourfeetoryouwishtotakerevenge报仇.Thinkfirstbeforeyouloseyourpatiencewithsomeoneyoulove.Truckscan69repairbutbrokenbonesandhurtfeelingsoftencan't.Toooftenwefailtorecognize70differencebetweenthepersonandtheperformance.Weforgetthatforgivenessisgreaterthanrevenge.
求下列函数的最大值或最小值．y=1﹣2x﹣x2．
SCIENTISTSstudyit;anincreasingnumberofself﹣helpbookstellusthewaytofindit.InfactthepursuitofhappinesshasbeencalledtheultimategoalinlifebycountlesstalksTVshowsandnewspaperandmagazinecolumns.Howeverhappinessasitwasbeforeisstillhardtofind. USpsychologistEdDienerauthorofHappiness:UnlockingtheMysteriesofPsychologicalWealthmayhavetheanswer:acombinationoflifesatisfactionandhavingmorepositivethannegativeemotions.Howeverthismaysoundstraightforwardenoughbutitstilldoesn'texplainwhatdeterminespeople'shappiness.AndasTheWashingtonPostarguedinanarticleearlierthismonthcreatingadefinitionofhappinessthatistrueforpeoplearoundtheworldcanseemasdifficultasbeinghappy.Forexamplewhoishappier:someonewhohasenoughmoneytobuyanewmobilephoneorsomeonewhohasafamilydinnerafteryearsawayfromhome? Neverthelessasmanysurveyssuggestoneofthemostimportantpartsofhappinessiswealth.TheUN'sWorldHappinessReport2015showsthatcountrieswiththehighestlevelsofhappinessaredevelopedoneswithSwitzerlandIcelandandDenmarkmakingupthetopthree.ButontheotherhandBhutanoneofthepoorestcountriesintheworldwasnamedthehappiestcountryinAsiaandtheeighthhappiestintheworldinresearchbyBusinessWeekin2012. Perhapsthebiggestproblemishowtheideaofhappinessvariesindifferentculturesandlanguages. AsTheWashingtonPostnotedthewordhappycanrefertodifferentthingsinEnglish.Itmightmeanabriefmoodyoufeelwhensomeonesurprisesyouwithagiftoryouthinkoffriendsandfamily.Oritcouldrefertosatisfactionwithyourlife.Butnotalllanguagesrefertohappinessthesameway.InDanishforexamplehappinessisoftentranslatedaslykkeatermthatcandescribeeverydaywell﹣beingthatmightcomefromanicecupofcoffeeorasliceofbreadwithcheese.InChinesethewordforhappinessisxingfuwhichisusedtodescribeagoodlifeandalifewithmeaning.Foragoodmoodhoweverkuaileisusedmoreoften. AnotherdifferenceintheperceptionofhappinessasTheWashingtonPostputitisthatWesterncountriestendtohavequiteanindividualisticviewofhumanlife.InChinaandmanyotherAsiancountriessocialrelationshipswithfamilyinparticularareoneofthemostimportantfactorsinaperson'swell﹣being. Soareyouhappy?Andwhatmakesyouhappy? 32.WhatdoeshappinessinChinesemeanaccordingtothearticle? A.Individualisticviewofhumanlife. B.Everydaywell﹣being. C.Acombinationofsatisfaction. D.Agoodlifewithmeaning. 33.HowdoChinesepeopleandpeoplefromWesterncountriesviewhappinessdifferently? A.WealthisregardedasthemostimportantsourceofhappinessinWesterncountries. B.Socialinteractionplaysamoreimportantroleinaperson'swell﹣beinginWesterncountriesthaninChina. C.Familybondsarebelievedtobecloselyconnectedtoaperson'swell﹣beinginChina. D.ChinesepeoplegetmorehappinessfromtheirpersonalachievementsthanpeoplefromWesterncountriesdo. 34.Howisthearticlemainlydeveloped? A.Bygivingexamples. B.Byanalyzingcauseandeffect. C.Byfollowingtheorderoftime. D.Byaskingandansweringquestions. 35.Whichoneistrueaccordingtothearticle? A.Itishardertofindhappinessthanever. B.Alllanguagesdon'tlookathappinessinthesameway. C.It'ssafetosaythathappinessliesinwealth. D.It'snothardtogiveauniversaldefinitionofhappinessacrosstheworld.
TeathemosttypicalEnglishdrinkbecameestablishedinBritainbecauseoftheinfluenceofaforeignprincessCatherineofBraganzathequeenofCharlesII.AsaloverofteasinceherchildhoodinPortugalshebroughttea﹣drinkingtotheEnglishroyalcourtandsetatrendforthebeverageinthe17thcentury.ThefashionsoonspreadbeyondthecircleofthenobilitytothemiddleclassesandteabecameapopulardrinkattheLondoncoffeehouseswherepeoplemettodobusinessanddiscusseventsoftheday.ManyemployersservedacupofteatotheirworkersinthemiddleofthemorningthusinventingalastingBritishinstitutiontheteabreak.HoweverdrinkingteainsocialsettingsoutsidetheworkplacewasbeyondthemeansofthemajorityofBritishpeople.Itcamewithahighpricetagandteawastaxedaswell. Around1800theseventhDuchessofBedfordAnneMariabeganthepopularpractice ofafternoonteaaceremonytakingplaceataboutfouro'clock.Untilthenpeopledidnot usuallyeatordrinkanythingbetweenlunchanddinner.Atapproximatelythesametimethe EarlofSandwichpopularizedanewwayofeatingbread﹣inthinsliceswithsomethinglikejamorcucumbersbetweenthem.BeforelongasmallmealattheendoftheafternooninvolvingteaandsandwicheshadbecomepartoftheBritishwayoflife. Asteabecamemuchcheaperduringthe19thcenturyitspopularityspreadrightthroughallcornersoftheBritishsociety.ThusteabecameBritain'sfavoritedrink.Inworking﹣classhouseholdsitwasservedwiththemainmealofthedayeatenwhenworkersreturnedhomeafteraday'slabor.Thismealhasbecomeknownashightea.Todayteacanbedrunkatanytimeofthedayandaccountsforovertwo﹣fifthsofalldrinksconsumedinBritain﹣withtheexceptionofwater. 1Whatismainlydiscussedaboutteainthetext? A.ItsdevelopmentinBritain. B.Itstraditionalwaysofdrinking. C.Itsinfluencearoundtheworld. D.ItspopularityinEurope. 2Whatdoestheunderlinedwordsthebeverageprobablyreferto? A.Teadrinking. B.Asmallmeal. C.Awayofeatingbread. D.Achoiceofdrinks. 3WhywasteaunabletobeacceptedasacommondrinkinBritaininthe17thcentury? A.ItwasmerelyservedinLondon. B.Itwastaxedasanalcoholicdrink. C.Itwasforbiddeninbusinesssettings. D.Itwastooexpensiveformostpeople. 4Howisthetextorganized? A.Bycauseandeffect. B.Bycomparison. C.Intimeorder. D.Infrequencyorder.
你的美国朋友Rose要来中国参加汉语演讲比赛.她对比赛感到非常紧张特意发来电子邮件向你求助.请据此并结合下面的写作提示给她回一封信. 要点:1.赛前如何准备; 2.比赛中的注意事项; 3.祝她好运. DearRose Yourssincerely LiHua.
第一节短文改错 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:在错的词下画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. StudyingintheUKhavebeenagoodexperienceforme.WhenIfirstarrived.IfindlifeveryhardasIdidn'tknowanybodyhere.butIsoongottoknowotherChinesestudentattheuniversity.LaterIbecameinterestingincommunicatingwithpeoplefromvariousculturesandImadefewerfriends. Duringmystudy.Ichosetoliveinwithmyclassmatesinthedormitory.Ithinkit'sbetterthanlivinginBritishfamilybecauseIcanmeetpeoplefromdifferentcountrieseasy.Thecourseshereareexcellent.Ienjoythewaytheteachersgivelessons.WeareencouragedtothinkforyourselveswhichisquitedifferentfromthatIhaveexperiencedbefore.
DearCarolyn MysisterstepandIgetalonggreat…aslongasourparentsaren'taround.Whenmymomandherdadaretheresheismeaneasilyoffendedeasilyoffensiveandit'sawful. We'vebeentalkingaboutplanningavacationforallofuswithmyyoungsontoDisneyWorldandit'salreadygottencontentious矛盾的.AverylargepartofmewantstosuggestthatwebreakthisupandjustgotoDisneywithmemysisterandmyson.ButifmyparentsgotheywillpayandIcan'treallyaffordtogoonmyown.MysistercoulddefinitelyaffordtopayforallofusbutIdon'tthinkIshouldaskforthat. Anyadvice?ThisissosoobviouslyabadideabutIdon'tknowhowtopullthisoff设法做成withoutlotsofhurtfeelings.IguessIcanjustgowithitandputupwiththeangerinexchangeforafreetriptoDisney?Ugh. ********************************************************************************** Familyvacationdisaster ThemostobviousOption1istobackoutofthetrip.Sayyou'renotcomfortablebeingpaidforandwouldliketopostponeuntilyoucansaveupforit. Option2istobemorestraightforwardwithyoursister:Idon'tknowifyou'venoticedthesamethingbutweseemtogetalongbetterwhentheparentsaren'taround.Butyouhavetobecarefulnottolaytheblameonher. Option3istogoonthetripasplannedbutwithadifferentattitudetowardyoursister.Someonewhoactsthewayyoudescribeisobviouslystressed.Canyouthinkofwhy?Canyoufindempathy感同身受;同感;共鸣? Canyouhelp?Ormaybejustcanyougetawaywhenitgetsbad? EvenifyougowithOption1or3fileaway2foranothertimetheunderlyingtensionbetweenyouthatspoilsyourtimewithyourparentsmustbeaddressed. 25.Fromthefirstletteritcanbeconcludedthatthewriterofthefirstletter. A.can'taffordtogoforatriptoDisneyalone B.isgoingtogoonavacationwithhersister C.hasgreatfunwithherparents D.willgotoDisneywithouthersister 26.FromthesecondletterwelearnthatFamilyvacationdisaster. A.shouldcancelthetripimmediatelyunlessshemakeupwithherparents B.shouldblamehersisterfornotgoingforthetrip C.shouldknowthathersisterisunderstressinfrontoftheirparents D.shouldfindempathywithherparents 27.WhatdoweknowaboutCarolyn? A.CarolynistheonewhowantstogoonatriptoDisney. B.Carolynisacolumnwriterwhohelpspeopleintrouble. C.Carolynisapersonwhoreceiveletter. D.CarolynisaworkerinDisney.
Antsaretroublesomebestknownforitchybitesandruiningpicnics.ButanewspeciesofcrazyantistakingoverTexas.Insomewaystheyappeartobeworsethanfireantsandthere'snogoodwaytostopthem.Theseantsmovefastandareplentifulinsomeareas. ThecrazyantsfirstspranginPearlandin2002andhavebeenbecomingmoreandmoreofaproblemeversince.Aninvasionofthesecanbesoextremethatit'shardtocallitjustanuisanceUniversityofTexasentomologistEdwardLeBruntoldTheAustinAmerican﹣Statesman.Theantshavebeenknowntocrawlintoandruintelevisionsappliancesandotherelectronicdevices.NooneisentirelysurewhyHesaid. DavidOiaresearchentomologistattheDepartmentofAgriculturetoldTheNewYorkTimesin2013thestrangeideathattheantsareactuallyattractedtotheelectricityitselfcan'tberuledout. ThecrazyantsorRaspberryants﹣yepthat'sactuallywhattheyarecalled﹣arefoundin23Texascounties.Theantshaveverylittlevenom毒液butdocauseaslightstingwhentheybite.Mostlythoughthey'reahazardtoelectricalequipment. Theyarearelativelynewspeciesintheregionandlittleisknownabouthowtocontrolorkillthepopulation.Andunfortunatelytheredoesn'tseemtobemuchthatcanbedoneaboutthemrightnow.Soforthemomentthebestadviceisnottostayclosetoantpilesandgroupsandhopethatnonemakeitinsidetocrawlaroundtheelectronics. 28.WhatdotheantsdoinTexas? A.Bitesomepeople. B.Damagelocalcrops. C.Destroyappliances. D.Polluteenvironment. 29.TheunderlinedwordnuisanceinParagraph2isclosestinmeaningto. A.story B.visit C.problem D.failure 30.Whenmeetingwithantpileswe'dbetter. A.killthemall B.controlthem C.drivethemaway D.stayawayfromthem 31.Whatcanweknowfromthetext? A.ThecrazyantsfirstappearedinTexasin2013. B.ThecrazyantscausehugetosstothepeopleinTexas. C.Thegovernmentistakingmeasurestodealwiththeant. D.DavidOiissurewhytheantsruinelectronicdevices.
Meaningfulrelationshipsmakelifemoreenjoyable.Inordertoattractanidealmateyou'llneedtospendsometimepreparingyourselftomakesureyou'rereadytobeinarelationshipwithanewperson. Definewhatanidealrelationshipmeanstoyou.Asyousetouttocreateyouridealrelationshipmakesureyouconsiderwhatyouwantfromit.36Ifyouwantattentionandaffectiontookforsomeonewhogivesyouthat. 37Oftenoneofthebiggestthingsthatcangetinthewayofyourfuturehappinessisyourpast.Inordertomoveforwardinyourlifeyouneedtosaygoodbyetoanythingyoumaybestrugglingwithfromyourpast.Creatinganidealrelationshiprequirescommitmenttothepossibilitiesofthefuturenotbitternessaboutthepast. Bepositive.Noonewantstobearoundsomeonewhoisbad﹣temperedorpessimisticallthetime.38Ifyouwanttofindanidealrelationshiptrytopicturethefutureasfullofopportunities.Nobodyisperfectbutbeingpositiveaboutyourselfandyourlifewillbeattractivetopotentialpartners. Worktowardspositivechangesinyourlife.39Oftenthesecharacterquirks怪癖arewhatmakepeoplelovableandmemorable.Yourfamilyandfriendsshouldloveyouinspiteofyourflaws.40Ofcourseyoushouldn'tchangeyourselfforsomeoneelseunlessitisapositivechangethatyouwanttomakeforyourself. A.Letgoofthepast. B.Everyonehasfaults. C.Welcomeyourfuturechallenges. D.Optimismattractsmoreoptimism. E.Workontalkingthingsoutevenwhenyou'reupsetatoneanother. F.Howevertherearethingsyouneedtoworkontoattractyouridealpartner. G.Ifyouarelookingforstabilityandsecuritysearchforapartnerwiththosequalities.
已知e为自然对数的底则abc的大小关系为
函数fx＝ln|x|ln|x|+1的图象大致为
Andrewwasgoingforasalesjobinterview.Heknewhehadthe61littleexperiencetogetthejob.Infacthewasn'tevensurehowhe'dgottheinterview.62hedidknowwasthathewasverythankfulfortheopportunitygiventohim. Thoughtheinterview63gowellitwasimpressedonhimagainthat64comparewiththeothercandidateshedidn'thavetheabilitytogetthejob.Asheleftthebuildinghegavethereceptionist65envelope.Insidewasathank﹣younotefortheman66hadjustinterviewedhimthankinghimforhistimeandfortheopportunity. ThateveningAndrewgotacall67tellhimthathe'dgotthejob.Hisnewemployerknew68clearthatitwasn'tAndrew'squalificationsthatgothimthejobbuthisthank﹣younote.IfAndrewwasabletobethankfulatthisstagehewouldbeabletobuildpositiverelationshipswithhis69customerwhichwasexactlywhatthecompanywaslooking70.BeinggratefulwonAndrewthejob.
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短文.短文中共有10处错误每句中最多有两处.错误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∧并在此符号下面写出该加的词. 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. LastSundayIwenttothemarketwithmymothertobuysomefreshlyvegetables.Mymotherspentalongtimebargainingbeforeshepaidforvegetablesshehadchosen.Shewantedtogetitatthelowestpricebecauseofshethoughtshecouldsavesomemoneyinthisway.Beforecomingbackshecookedsuchmanydishesthatwecouldn'teatthemall.Sowehadtothrowsomefoodsaway.Asaresultthemoneywewastedwasmuchthanthatsavedfrombargaining.Icouldn'thelpfeelconcerned.Ithinkthebestwaytosavemoneywastostopwasting.
第一节完形填空 Ispentlastsummervolunteeringatahospital.Itwasagiftto41somanyamazingpeopleandI'dliketoshareoneofthesemoments.OnedayIwascalledtoaroomwherean42womanwasstaying.UsuallyIhelpedwith43whowerereadytoleave.Insteadshe44togotothegiftshop.Igota45helpedherintoitandheadeddowntotheentrance. Whenwegotthereitwasn'topenyet.Aftera30﹣minute46weenteredthegiftshop.AsIpushedheraroundIcouldseethe47inherfaceasshelookedateverythinghappytobeoutofherroom.She48somewindowdecorationsandthensawchocolates. Sheaskedmetopushherinthat49andthenIhelpedher50allthedifferentchocolatearrangements.51shedecidedonthreedifferentboxes. Shetoldmetowritethenumbers12and3ontheboxes.She52thatthenursesweretakingsuchgoodcareofhersoshe53chocolatesforeachofthethreeshiftsofnurses.Aswegavethecurrentshiftofnursestheirboxofchocolatethey54offeredsometomebeforetakingsomethemselves. Therewere55allaround.Witnessingtheoldlady's56andgettingtheopportunitytospendtimewithsomeonewhogotsomuchjoyfromlifewasa57initself.Ihavesomanymorestoriesandeachpersonmadeanimpactonmylife.I've58thathealthhasawayofbringingpeopletogether.59isablessingandbeinginaplacewherehealthisso60andappreciatedisunlikeanythingelse. 41.A.introduce B.meet C.attract D.describe 42.A.elderly B.strange C.important D.famous 43.A.nurses B.kids C.patients D.parents 44.A.pretended B.wanted C.failed D.promised 45.A.car B.shoppingcart C.wheelchair D.bike 46.A.ride B.walk C.drive D.wait 47.A.relief B.anxiety C.joy D.puzzle 48.A.chose B.made C.used D.received 49.A.manner B.case C.direction D.point 50.A.preparefor B.makeup C.figureout D.1ookthrough 51.A.Suddenly B.Eventually C.Fortunately D.Actually 52.A.explained B.declared C.expected D.imagined 53.A.exchanged B.designed C.tasted D.bought 54.A.infact B.ataloss C.inturn D.atease 55.A.whispers B.smiles C.shouts D.cheers 56.A.kindness B.choice C.decision D.1oneliness 57.A.1esson B.chance C.gift D.fact 58.A.concluded B.imagined C.predicted D.1earned 59.A.Health B.Luck C.Virtue D.Praise 60.A.tested B.valued C.maintained D.promoted
Peoplewhoseemtohavealltheluckarenotusuallyblessedbyalargeamountofgoodfortune.Theysimplyhaveahealthyattitudewhichenablesthemtomakethemostofsituations.Herearesometipsforcreatingyourownluck. 1.BeGratefulForWhatYouHave. Somepeoplearealreadyluckyandtheyjustdon'knowit.36Forexampleyouhaveahappyfamilysomewonderfulfriendsaroofoveryourheadandfoodonthetable.Byacknowledgingthesethingsregularlyyoucaninstantlyfeelluckier. 2.SeetheGoodinthePast Peoplesometimescomplainabouttheirpastforholdingthemback.Theyblametheirparentsortheirschoolingfornotsettingthemupforsuccess.Buthavingadifficultlifedevelopsstrengthsandqualitiesyoumightneverhavegotifyouhadn'tbeenthroughthosetoughsituations.37 3.BeGenerous Ifyouwantpeopletogiveyouopportunitiesyouhavetoconsiderwhatyoucandoforothers.38Begenerouswithyourtimeandattentionandyou'llbesurprisedhowmanyluckyopportunitiespeoplemayofferyou. 4.BeOpentoNewthings Luckdoesn'tjusthappenuponus﹣itcomestouswhenwe'reopen.39LearningnewskillsvisitinganewplaceortryingaDewhobbyareallgreatwaysofexpandingyouropportunitiesandyourmindset. 5.TakeAction 40Takestepstowardsyourgoalsanddreamsandgreeteverychallengewithapositivemindset.Youwillfindyoucreatemoreluckineverydaylife. A.Youcannotexpecttoreceiveifyounevergive. B.Sobegratefulforthegoodthatcamefromyourpast. C.Manypeoplespendtimethinkingaboutwhattheydon'thave. D.You'llnevercreateanyluckifyousittherewaitingforittocome. E.Tryingsomethingnewisagreatwayofgettingmoreopportunities. F.Butoftensuccesscomesfromgreatdeterminationratherthangoodluck. G.Lookathowluckyyoualreadyareinsteadoffocusingonwhat'slacking.
双曲线的左右焦点分别为F1F2P在双曲线C上且△PF1F2是等腰三角形其周长为22则双曲线C的离心率为
Thetermhelicopterparentsreferstoastyleofparentswhoareoverfocusedontheirchildren. Helicopterparentsarealwaysmakingabigpushtoprovidechildrenwitheveryopportunitytosucceedfrombabystepsatage1homeworkatage8collegeapplicationatage18employmentissuesatage25tofamilyproblemsatage3040orevenolder.Theyconstantlyshadowthechildalwaysdirectinghisbehaviorallowinghimzeroalonetime. Helicopterparentingcandevelopforanumberofreasons.Worriesabouttheeconomythejobmarketandtheworldingeneralcanpushparentstowardtakingmorecontrolovertheirchild'slifeinanattempttoprotectthem.Adultswhofeltunlovedorignoredaschildrencanovercompensatewiththeirownchildren.Whenparentsseeotheroverinvolvedparentsitcancauseasimilarresponse.Theyfeelthatiftheydon'tinvolvethemselvesintheirchildren'slivestheyarebadparents. Themainproblemwithhelicopterparentingisthatitcanbackfire.TogiveanexamplethehousewhereMarylivedwithroommateswasbrokenintoandthingswerestolen.Marycalledthelandlord房东toinstallanalarmsystembutbeforeshecouldfinishthenegotiations协商hermotherrushedinanddemandedaction.Ifeltlikemymotherruinedmycommunicationwithourlandlord.Wecouldhavegottenitdoneourselves.ShewaswellintendedbutonlymademefeelannoyedanddefeatedsaysMary. Obviouslyoverparentingismotivatedwiththeideaofdoinggoodthingsbutitdoestheexactopposite.Inthelongrunparentsareactuallydamagingtheirchild'sbasicskillstodealwithmattersindependently.Itmakesthechildfeellackinginconfidencelesscompetentindealingwiththestressesoflifeontheirown.They'rewinningthebattlebutactuallylosingthewar. 29.What'sthepurposeofhelicopterparents'overparenting? A.Todosomethinggoodfortheirchildren. B.Tomaketheirchildrennotignored. C.Tohelptheirchildrenfindagoodjob. D.Togetridofthepressurefromotherparents. 30.Whatcanwelearnfromthepassage? A.Childrenwhohavehelicopterparentsliveahardlife. B.Helicopterparentingonlyhappenstoveryyoungchildren. C.Helicopterparentscanprotecttheirchildrenagainstallproblems. D.Helicopterparentsdotheirchildrengreatharminthelongrun. 31.Whatwillpossiblybediscussedintheparagraphthatfollows? A.Thebadeffectsofhelicopterparenting. B.Howwecanavoidbeinghelicopterparents. C.Differentopinionsabouthelicopterparenting. D.Thereasonsforthedevelopmentofhelicopterparents. 32.Whatistheauthor'sattitudetowardshelicopterparenting? A.Uninterested. B.Objective. C.Positive. D.Disapproving.
已知两条不同直线ab两个不同平面αβ有如下命题 ①若a∥αb⊂α则a∥b②若a∥αb∥α则a∥b ③若α∥βa⊂α则a∥β④若α∥βa⊂αb⊂β则a∥b 以上命题正确的个数为
MymotherandIneverhadoneofthosenicedressinmatchingmother﹣daughterclothesrelationships.Intheconfuseduncertainmindofateenagerthis41toShedoesn'tcareunderstandorloveme.42Iwasquitesurethatshehadnoideawhatlovewasreallyallabout.43shewasmoppingthefloorscookingmealsandraisingfivechildrenIwaslisteningtothemusicreadingpoetryandexperiencingthe44oflove. Asthewinterofmysixteenyear45thetensionbetweenusgrew.LookingbacknowIrealizethatItookeveryopportunitytolashoutat抨击herinan46tolessenmyowninsecurity.AndthatisexactlywhatIdidwhensheunpackedthatoldgreencoatofhers.Well﹣wornand47IdirectlytoldherthatIcouldnotbelieveshewould48itforanotherseason.ShebegantosaysomethingaboutnothavingthemoneyforanewcoatbutIwasalreadysayingphraseslikeWhenIamolderIwillhaveabeautifulandrich﹣lookingcoat.Iwouldn'tbe49deadwearingaraglikethat. Christmasmorningwasalwaysan50timeinourhouseandthatyearwasnoexception.Thesoundoflaughterkidsyellingandpaperrippingfilledthelivingroom.ThoughItriedtokeepcalmIwas51toseewhatSantahadbrought.Onelargebrightlywrappedboxwithmyname52myattention.Iquicklytoreitopen.InsidewasthemostbeautifulIhadeverseen.Brownsuede绒面革大衣withawhitefurcollaritwasnicerthananythingIhad53dreamtofowning. LookingupIcaughtmymother's54.IthoughtoftheoldgreencoatandinstantlyI55howpreciousthisgiftreallywas.Mymotherknewwhatacoatlikethiswouldmeantomeandshewaswillingto56heroldcoatsothatIcouldhaveit.Hereyesgleamedwithjoyasifitwereshewhohadreceivedtheverybestgift.57thetruemeaningoflovewascleartome. IwishIcouldtellyouourrelationship58changedintoalovingandgivingoneafterthatdaybutthatonlyhappensinthemovies.Westillfoughtandfound59witheachotherbutIalways60aspecialplaceinmyheartwhereIlovedherandIknewthatshelovedme. 41.A.translated B.handed C.awarded D.brought 42.A.Really B.Actually C.Obviously D.Slightly 43.A.Although B.Once C.If D.While 44.A.excitement B.disappointment C.surprise D.satisfaction 45.A.approached B.advanced C.changed D.left 46.A.effect B.effort C.order D.experiment 47.A.outoforder B.outofplace C.outoftime D.outofstyle 48.A.keep B.choose C.wear D.remain 49.A.grasped B.seized C.caught D.held 50.A.satisfactory B.thrilling C.moving D.astonishing 51.A.concerned B.upset C.worried D.anxious 52.A.pushed B.pulled C.drew D.paid 53.A.already B.ever C.even D.still 54.A.eyes B.attention C.head D.coat 55.A.thought B.realized C.admitted D.spotted 56.A.getawaywith B.comeupwith C.makedowith D.catchupwith 57.A.Suddenly B.Finally C.Clearly D.Indeed 58.A.terribly B.beautifully C.wonderfully D.magically 59.A.proof B.mistake C.error D.fault 60.A.carried B.settled C.held D.stayed
假设你是红星中学高三1班学生李华.在高考前剩下的日子里你的朋友Peter想了解你的计划请你给他写一封回信.信的内容包括: 1.你的计划和愿望是什么? 2.你打算如何实现你的愿望. 注意: 1.词数100左右; 2.可以适当增加细节以便行文连贯; 3.短文中不能出现与本人相关的信息. DearPeter Yours LiHua.
ThereareprobablynopeopleonEarthwholiketogossipasmuchastheBritish.Ifpryinginto打探other'sliveswereanOlympicsportthenTeamGBwouldsurelytakethegoldmedal. AndwhentheBritishcan'twatchthelivesofrealpeopletheyhaveanothersourceofentertainmenttofallbackon﹣thesoapopera.BritishsoapoperasareverydifferentfromUSTVdramas.Foronetheyarenormallylongerrunning.ThetwomostpopularCoronationStreetandEast﹣endershavebeenrunningfor48and24yearsrespectively.Botharebroadcastseveraltimesaweeksoremarkablytherehavebeenmorethan7000episodesofCoronationStreet. ThemostobviousdifferenceisthatunlikeUSdramastheBritishsoapoperasfocusontherealworld.Thereislittleglamour魅力thestarsarerarelyrichandtheynormallyhaveboringjobs.Perhapstheappealisthatthelivesofthecharactersoftenmirrorthelivesoftheaudience﹣butwithsomedramaadded.Thismeanstheviewercanrelatetothecharactersandfeelthepainandhappinesstheygothroughontheshow. BecausethesesoapoperaslastfordecadesthecastiseverchangingTheshowsrarelyfocusononeortwomaincharacters.Liketherealworldpeoplecomeandgoallthetime.Howeverthereareexceptions.Street'swilliamRoach76hasplayedtheroleofKenBarlowsincetheveryfirstepisodeoftheshowin1960andheisstillaregular. Thechoiceofwhichsoapoperayoufollowisoftencultural:PeoplefromthenorthofBritishtendtowatchCoronationStreetasitissetinManchester.PeoplefromthesouthgenerallypreferEast﹣enderswhichissetintheeastofLondon.Theshowisgenerallyconsideredgrittierandisaimedatayoungeraudience. 28.WhatisthemaindifferencebetweenAmericandramasandBritishsoapoperas? A.Americandramasarelonger. B.Britishsoapoperasarelonger. C.Americandramasdealwithdangerousthings. D.Britishsoapoperasdealwithrealpeople. 29.WhydoBritishpeopleliketowatchsuchoperas? A.Theycanfindtheirownlifefromtheoperas. B.Theycanenjoytheoperasintheirfreetime. C.Theycanwatchtheoperasformanyyears. D.Theycareaboutthefateofthecharactersintheoperas. 30.Theunderlinedworldepisodesinthe2ndparagraphprobablymeans. A.plays B.pages C.issues D.parts 31.OnecharacteristicofBritishoperasisthat. A.thecharactersplaythesameroleforalongtime B.thecharactersintheplayoftenchange C.peopledon'tknowwhatwillhappennext D.thereisonlyoneortwocharactersinthem.
已知数列{an}的前n项和为Sn满足a1＝1n≥2若则m的最小值为
热门题库
更多
高三下学期物理
高三上学期物理
高三上学期生物
高三上学期化学
高二下学期化学
高二下学期生物
高三下学期生物
高三下学期化学
高三上学期英语
高二下学期英语
教案备课库
高三下学期英语
教案备课库
教案备课库
教案备课库
教案备课库
湘公网安备 43130202000226号