冲刺2021届高考英语语法填空20天集训Day7AA5-year-oldgirlhassucceededin___1___(pay)offtheoutstandinglunchdebtsofherclassmatessimplybysellingcookiesandhotcocoa.KatelynnHardee___2___(inspire)tosellherbakedgoodsaftersheoverheardastudentsmothertalkingabouthowshecouldntafford___3__after-schoolprogramforherchild.Katelynnsmother,Karina,hadtoexplaintotheyoungsterthatsomeparentsdidnothavemuchmoneyasotherpa...
功和功率一、单选题1．（2019海南省高三三模）关于以下各物理量的理解正确的是()A．速度是矢量，-3m/s比-5m/s大B．位移是矢量，-3m比-5m大C．重力势能是标量，-3J比-5J大D．功是标量，做功-3J比-5J多2．（2020江苏省大丰市职教中心高三专题练习）如图所示，运动员把质量为的足球从水平地面踢出，足球在空中达到的最高点高度为，在最高点时的速度为，不计空气阻力，重力加速度为，下列说法正确的是()A．运动员踢球时对足球做功B...
冲刺2021届高考英语语法填空20天集训Day18AThewildfiresinAustraliabecameconsiderablyworseinJanuary,2020.Thedisaster___1__(face)bythecountryisfarfromover.Manyofthefires___2___(send)smokehighintotheatmosphereandsomesmoketurnedintopyrocumulonimbusclouds(积雨云)．Thecloudscanhelpafiredrawinmoreairandshiftsurfacewinds,___3___(result)infiretornadoes(龙卷风)．Fireshavedestroyedhabitatsforanimalsthatcan__...
冲刺2021届高考英语语法填空20天集训Day14AWithfewerthan2,000giantpandasleftinthewild,thesightingofoneofthelovelyanimalsisacausefor____1____(celebrate).However,theonerecentlyspottedwalkingthroughabambooforestinChina’sSichuanProvinceisevenmoreso,___2____(consider)thatitistheworldsfirstknownall-whitepanda!It____3____(spot)byaninfrared(红外线的)camerasetuptomonitorthewildlifeintheWolongNationalNatur...
冲刺2021届高考英语语法填空20天集训Day13ALookattheroundcakes．TheyaremadebySiewBoon．Sheisajellyartist___1___runsherownbusiness．Shehascreatedbeautiful3Djellycakesby___2___（use）seaweedjellyandnaturalcolor1ing．SiewBoon___3___（begin）herbusinessmorethantwoyearsago．Inlate2017，unfortunately，doctorsfoundacanceronherbreast．However，shewasdeterminednottoletcancergetinthewayofherdoing___4___shel...
动量、冲量、动量定理一、单选题1．（2020全国高三专题练习）我国女子短道速滑队在2013年世锦赛上实现女子3000m接力三连冠．观察发现，“接棒”的运动员甲提前站在“交棒”的运动员乙前面，并且开始向前滑行，待乙追上甲时，乙猛推甲一把，使甲获得更大的速度向前冲出．在乙推甲的过程中，忽略运动员与冰面间在水平方向上的相互作用，则（）A．甲对乙的冲量一定等于乙对甲的冲量B．甲、乙的动量变化一定大小相等方向相反C．甲的...
万有引力与航天一、单选题1．（2020四川省泸县五中高三三模）2019年4月10日，世界上第一张黑洞照片诞生了，证实了神秘天体黑洞的存在。黑洞是宇宙中质量巨大的一类天体，连光都无法逃脱它的引力束缚。取两天体相距无限远时引力势能为零，引力势能表达式为，已知地球半径R=6400km，光速c=3x108m/s。设想把地球不断压缩（保持球形不变），刚好压缩成一个黑洞时，地球表面的重力加速度约为（）A．7×109m/s2B．7×1010m/s2C．1.4×...
冲刺2021届高考英语语法填空20天集训Day15AThetwofeaturesoflifeinEnglandthatpossiblygivevisitorstheworstimpressionsaretheEnglishweatherandEnglishcooking.______1______formerisanaturalphenomenonthatnobodycandoanythingabout.But,cookingissomethingthatcanbelearned.Englishfoodhasoftenbeendescribedas______2______(taste).Recently,thesituationhaschangedsomewhatbecausemanypeoplehavebeenspendingtheirholidays...
冲刺2021届高考英语语法填空20天集训Day11AAsthenamesuggests,SichuanHotPotwasborninSichuanProvince,____1____isknownforits____2___(prefer)forspicyfood.Thismouth-burningandtongue—numbinghotpothasbeengainingalargeamountofattentioninrecentyearsinforeigncountries.The____3____(common)acceptedtheorytracestheSichuanHotPotbacktoearly20centurywhentheportworkersandfishermenwhoworkedandlivedalongtheYangtzeRi...
冲刺2021届高考英语语法填空20天集训Day10ANaturalresourcesarethings______1_____existinnatureandcanbeusedbypeople.Somenaturalresourcesarerenewable,liketrees.Whenonetreeiscutdown,wecanplantanewtreetoreplaceit.Others,______2_____,arenotrenewable,likethecoaldugoutoftheground.Onceitisused,itis______3______.(go)Althoughweallknowthatournaturalresourcesarelimited,weoftenwastetheminourdailylife.Paper,bott...
冲刺2021届高考英语语法填空20天集训Day9AWealwaysthinkit’sOKforustoleaveourplantsunattendedduringourvacation,butarecentstudyhasledtoanew___1___(discover).Somescientiststestedtobaccoplantsandtomatoplantsbycuttingofftheirstems(茎)and___2___(stop)wateringthem.Theythenrecordedtheirresponsewithamicrophone___3___(place)tencentimetersaway.Theyfoundthattheplantsbegantoscreamultrasonic(超声波)sounds,whic...
冲刺2021届高考英语语法填空20天集训Day8AFriendshipisoneoflife’sgreatestgifts,andit___1__(value)inbothEasternandWesterncultures.OneofthemostfamoussayingsaboutfriendshipinChinacanbefoundinthewordsofConfucius:Isntit___2___joywhenfriendsvisitfromfarawayplaces?IntheUK,thereisan_____3_____(equal)famouspoemaboutfriendship.Itremindspeople___4___(remember)andvalueoldfriendships,astheylooktotheyearsahead...
冲刺2021届高考英语语法填空20天集训Day4ASummerPalace,which___1___(literal)means“thegardenofperfectbrightness”,wasanestateofgardens,temples,palacesandtowersinthenorthwestofBeijing.However,itwasbrokenintobyAnglo-Frenchin1860,___2___numerousnationaltreasures,includingthe12animalheadstatues,weretakenaway.InSeptember2007,StanleyHoinMacaopurchasedthehorse-headstatueatapriceofHK$69.1million($8.9milli...
冲刺2021届高考英语语法填空20天集训Day3AAsthenamesuggests,SichuanHotPotwasborninSichuanProvince,____1____isknownforits____2____(prefer)forspicyfood.Thismouth-burningandtongue—numbinghotpothasbeengainingalargeamountofattentioninrecentyearsinforeigncountries.The____3____(common)acceptedtheorytracestheSichuanHotPotbacktoearly20centurywhentheportworkersandfishermenwhoworkedandlivedalongtheYangtzeRi...
直流电路一、单选题1．（2019全国高三专题练习）随着中国电信业的发展，国产手机在手机市场上已经有相当大的市场份额．如图所示是中国科健股份有限公司生产的一块手机电池外壳上的文字说明，由此可知该电池的电动势、待机状态下的平均工作电流分别是（）A．4.2V14.58mAB．4.2V700mAC．3.7V14.58mAD．3.7V700mA2．（2020浙江省高三月考）如图，一电动自行车动力电源上的铭牌标有“48V，12Ah”字样。它正常工作时电源输出电压为40...
电磁感应现象、楞次定律一、单选题1．（2020全国高三专题练习）随着科技的不断发展，无线充电已经进入人们的视线。小到手表、手机，大到电脑、电动汽车的充电，都已经实现了从理论研发到实际应用的转化。下图给出了某品牌的无线充电手机利用电磁感应方式无线充电的原理图。关于无线充电，下列说法正确的是()A．无线充电时手机接收线圈部分的工作原理是“电流的磁效应”B．只有将充电底座接到直流电源上才能对手机进行充电C．接...
校长在高考百日冲刺动员会上的讲话【仅供学习参考，切勿通篇使用！】校长在高考百日冲刺动员会上的讲话尊敬的老师和家长朋友们，亲爱的同学们：大家下午好！风暖了，草绿了，潭水轻漾，百鸟欢歌，这是万物生机勃发的好时节，也是高三学子拼搏奋进的好日子。今天我校隆重召开2022届高考动员大会。首先，我谨代表学校向奋战在高三一线的老师们表示衷心的感谢和崇高的敬意。向顽强拼搏、刻苦努力、奋发向上的同学们，表示亲切的问...
在2022年高考冲刺动员大会上的讲话【仅供学习参考，切勿通篇使用！】在2022年高考冲刺动员大会上的讲话同学们：你们好！！久违了！过了一个超长的假期，甚是想念，看到你们才能找到我们自己！你们成长的总体目标就是独立，独立的前提就是思想独立，思想独立的前提就是头脑清醒！我们每个人的条件和使命是不同的，或继承或发展或逆袭，但不能沉沦和败落，而出现最后一个结局的原因就是迷糊！大家都知道，《红楼梦》是中国最伟大...
重力、弹力、摩擦力一、单选题1．（2020河北省高三专题练习）把一个月牙状的薄板悬挂起来，静止时如图所示．则薄板的重心可能是图中的（）A．A点B．B点C．C点D．D点【答案】D【解析】悬挂法测量重心位置的原理，结合二力平衡条件分析可得，重心位置是D点故选D．2．（2019江苏省高考模拟）如图所示，物理课本放在水平桌面上，下列说法中正确的是()A．桌面对课本的支持力与课本的重力是一对平衡力B．桌面对课本的支持力与课本对桌...
冲刺2021届高考英语语法填空20天集训Day19ADavidwasupsetbytheplasticgoingintotheoceans.Tohelpsolvetheproblem,hehada____1____(create)idea-tocreateplasticlikemoney.Davidcallshisideathe“PlasticBank”.ThegoalofPlasticBankistouseplastictohelppeoplesolvetheproblems_____2_____(gradual).ThePlasticBankaddsavaluetoplasticwasteby____3____(pay)peopletorecycleit.Theprogrambeganin2015inHaiti,apoorislandnationw...
