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碳酸钙可用作补钙剂,以工业石灰石(主要杂质是氧化铁)为原料提纯碳酸钙,某兴趣小组设计方案如下: 方案一: (1)化学反应还伴随着能量的变化,在第①、②步反应中,存在放热现象的是 (填序号)...
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煅烧石灰石可制得氧化钙假设石灰石中的杂质不参与反应且不含钙碳元素测得煅烧后剩余固体中钙元素与碳元素的
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天然存在的石灰石.大理石的主要成分是CaCO
3
碳酸钙可用作补钙剂,因为它能溶于水,易被吸收
碳酸钠广泛用于玻璃.造纸.纺织和洗涤剂等工业
碳酸氢钠是发酵粉的主要成分之一
工业上高温煅烧石灰石CaCO3可制得生石灰CaO和二氧化碳如果高温煅烧含碳酸钙80%的石灰石25吨杂
某工厂利用石灰石主要成分是碳酸钙制二氧化碳若以含有200吨碳酸钙的石灰石为原料可制得二氧化碳的质量
刘斌同学的姑父准备兴建一座碳酸钙精粉厂.为检测当地石灰石中碳酸钙的纯度他在实验室用6g石灰石样品杂质
传统水泥生产中高温煅烧某种石灰石50吨可产生二氧化碳多少吨已知该石灰石中碳酸钙含量为80%杂质不反应
下列叙述正确的是①氧化铝是一种比较好的耐火材料可用来制造耐火坩埚②氧化铁常用作红色油漆和涂料③硅酸钠
①③④⑤
②③④⑤
①②④⑤
①②③④
轻质碳酸钙可用作牙膏摩擦剂.工业上常用石灰石含有少量杂质来制备比较纯净的轻质碳酸钙.已知①石灰石高温
为测定某石灰石样品中碳酸钙的质量分数取22.2克石灰石样品放入盛有146克稀盐酸的烧杯中石灰石中的碳
低碳生活从我做起全国两会首次使用环保易降解的石头纸体现了低碳生活的理念石头纸的主要原料为碳酸钙下面有
碳酸钙属于氧化物
我们要节约用电,体现低碳生活
碳酸钙属于钙盐
石灰石是碳酸钙的俗称,石灰石常用来生产生石灰
为测定某石灰石样品中碳酸钙的质量分数取22.2g石灰石样品放入盛有146g稀盐酸的烧杯中石灰石中的碳
工业上利用高温分解石灰石主要成分CaCO3杂质不参与任何反应得到生石灰.现实验室利用此原理来分析石灰
乐乐同学为测定某石灰石中碳酸钙的质量分数杂质不与酸反应向6.0g石灰石样品中逐滴加入稀盐酸至不再产生
低碳生活从我做起全国两会首次使用环保易降解的石头纸体现了低碳生活的理念石头纸的主要原料为碳酸钙下面有
碳酸钙属于氧化物
我们要节约用电,体现低碳生活
碳酸钙属于钙盐
石灰石的主要成分是碳酸钙,石灰石常用来生产生石灰
碳酸钙是牙膏中常用的摩擦剂可用石灰石作原料制得某牙膏厂现有一批石灰石样品为探究所含碳酸钙的质量高温煅
工业上用煅烧石灰石主要成分为C.aCO3制取生石灰主要成分C.aO.同时得到二氧化碳.1某工厂用50
为测定某石灰石样品中碳酸钙的质量分数取22.2g石灰石样品放入盛有146g稀盐酸的烧杯中石灰石中的碳
煅烧含96%碳酸钙的石灰石50克杂质在煅烧过程中质量不变.计算1石灰石中碳酸钙的质量为g2生成二氧化
石灰石和铁的化合物在生产生活中有着广泛的应用1炼铁的原理是一氧化碳与氧化铁在高温条件下反应生成铁和二
煅烧石灰石可制得氧化钙假设石灰石中的杂质不参与反应且不含钙碳元素测得煅烧后剩余固体中钙元素与碳元素的
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15分Nov2wasadaytorememberinChina'saviation航空history.Itwastheday1itsfirsthomemadelargepassengeraircrafttheC919wasunveiledinShanghai.ThismakesChinathe2threeregiontomanufacturelargepassengeraircraft3followtheUS'BoeingcompanyandtheEuropeanUnion'sAirbusline. Alargepassengeraircraftisaplanethatweighsover100tonswhenittakesoff.Thenameisalso4linktothenumberofseatsontheplane.InChinaanairliner5morethan150seatsisconsideredalargeaircraft.Andinthe6nationworlditmeansaplanewithover300seats. AccordingtoXinhuatheC919whichwillmake7firstflightin2016canseat190peopleatmost.Ithasastandardflightrangeof4075kmandanextendedrangeof5555km.Thismeansitcanfly8directfromBeijingtoSingapore. 9abilitytomanufacturelargepassengeraircraftisasymbolofacountry'soverallstrengthsaidPresidentXiJipinglastyear.Thisis10makinglargeaircraftisahigh﹣techintensiveindustrythatinvolvesdifferentdisciplinesrangingfromaerodynamicstomaterialscience.
首先得到“同一导体通过它的电流与它两端的电压成正比”的科学家是
6分Myrbetriqisaprescription处方medicationforadultsusedtotreatthefollowingsymptomsduetoaconditioncalledoveractivebladder●Urgeurinaryincontinenceastrongneedtourinatewithleakingorwettingaccidents.●Urgencyastrongneedtourinaterightaway.●Frequencyurinatingoften.ItisnotknownifMyrbetriqissafeandeffectiveinchildren.BeforeyoutakeMyrbetriqtellyourdoctoraboutallofyourmedicalconditionsincludingifyou●haveliverproblemsorkidneyproblems.●haveveryhighuncontrolledbloodpressure.●havetroubleemptyingyourbladderoryouhaveaweakurinestream.●arepregnantorplantobecomepregnant.●arebreastfeedingorplantobreastfeed.TakeMyrbetriqexactlyasyourdoctortellsyouto●TakelMyrbetriqtabletltimeaday.●TakeMyrbetriqwithwaterandswallowthetabletwhole.Dotchewbreakorcrushthetablet.●TakeMyrbetriqwithorwithoutfood.Specialattention●IfyoumissadoseofMyrbetriqbegintakingMyrbetriqagainthenextday.●IfyoutaketoomuchMyrbetriqcallyourdoctororgotothenearesthospitalemergencyroomrightaway.MyrbetriqmaycauseserioussideeffectsincludingTellyourdoctorifyouhaveanysideeffectthatbothersyouorthatdoesnotgoaway.ThesearenotallthepossiblesideeffectsofMyrbetriq.Callyourdoctorformedicaladviceaboutsideeffects.YoumayreportsideeffectstotheFDAatl﹣800﹣FDA﹣1088.Storagerequirements●StoreMyrbetriqbetween59°Fto86°F15℃to30℃.Keepthebottleclosed.●Safelythrowawaymedicinethatisoutofdateornolongerneeded.●KeepMyrbetriqandallmedicinesoutofthereachofchildren.1Whoisnotsuitableforthismedicine?A.Grown﹣ups.B.Children.C.Women.D.Oldpeople.2InwhichsituationdoyouneedtotellthedoctorbeforetakingMyrbetriq?A.Beingawould﹣bemother.B.Goingtotakeanexam.C.Havingheart&lungproblems.D.Sufferingmildhighbloodpressure.3HowshouldyoustoreMyrbetriq?A.Reserveitinthefreezingchamber.B.Keepitawayfromchildren.C.Storeitwiththebottleopen.D.Preserveitasyoulike.
在图所示的电路中电源电压为18伏且不变电阻R1的阻值为20欧滑动变阻器R2上标有“10Ω1A”字样电压表“0~15V”量程档已损坏.闭合电键S后求 1当电压表示数为2伏时电流表A的示数以及电阻R1消耗的电功率. 2现设想选择一个电阻R0来替换电阻R1要求在移动变阻器滑片P的过程中电压表能发生满偏且电路各元件均能正常工作.求 ①电阻R0的取值范围. ②满足上述条件的情况下电路中的最小电流.
在图中的〇里填上适当的电表符号当电键闭合时电路能正常工作.
10分HealthyagingtopicoverviewWhatishealthyaging?1Howyouwillfeelasyougetolderdependsonmanythingsincludingwhathealthproblemsruninyourfamilyandthechoicesyoumake.Ifyoutakegoodcareofyourbodyandlearnpositivewaystodealwithstressnowyoucanslowdownorevenpreventproblemsthatoftencomewithgettingolder.Whatdetermineshowhealthyyouwillbeasyougetolder?2Themostimportantoneisyourffunilyhistorygenetics.Ifyourfamilymembershavediseasesorongoinghealthproblemsthenyoumayhaveagreaterchanceofhavingthoseproblemsyourself.Whatkindsofchangesshouldyouexpectasyouage?Changesasyougetolderareusuallygradual.Certainphysicalchangesarecommon.Mostpeoplestartneedingreadingglassesaroundage40;manyhavesomehearinglosslaterinlife;thekidneysarelessabletokeepenoughwaterSoasyougetolderit'simportanttobephysicallyactivedrinkplentyofwaterandchoosehealthyfoods.3Whatdoyouneedtodotofeelyourbestasyouage?Oneofthemostimportantthingsyoucandoforyourhealthatanyageistobephysicallyactive.4Peoplewhostayactivearelesslikelytogetdepressed.PhysicalactivitycanbeanythingfromwalkingtogardeningtoworkingoutattheUm.Theimportantthingistobeactivealmosteveryday.Onthewholeit'snevertooearlyortoolatetochangebadhabitsandstartgoodones.5A.Gettingolderisanaturalpartoflife.B.Whatcanyoucontrolabouthealthyaging?C.Physicalactivitykeepsyourbodystrongandithelpswithhowyoufeel.D.Doingthesethingswillhelpyourbodyworkwellforalongerperiodoftime.E.Thechangesyou'llgothroughasyougetolderdependonanumberofthings.F.Whateveryourageorconditionthereisatypeofphysicalactivitythat'srightforyou.G.Wheneveryoustartahealthylifestylecanmakeadifferenceinhowyoufeelandwhatyoucando.
8分Role﹣playintheclassroomisaformofinstructioninwhichyouhavestudentstakethepartofsomeoneelsesothattheycanunderstandasituationfromadifferentpointofview.Itisconsideredaperfectformofinstruction.Usingrole﹣playintheclassroomcanhelpteachchildrenintheclassaboutcertainsituationsinadramaticfashion.Thiswillcausethechildrentobetterrememberthesituationsmakingrole﹣playagoodteachingmethodfornewhypothetical假设的theories.Itallowsthestudentstoplaytherolesofcertaincharactersinthesesituationssotheyareabletoseethingsfromanewperspective视角.Inarole﹣playsituationstudentsgettheopportunitytopractiseskillstheymightnotuseonaregularbasis.Skillssuchasdebatingactingreasoningandnegotiatingcanbepracticedinhypotheticalsituationswhentheycannotnormallybeusedinaclassicschoolsituation.Studentsarealsoabletoadapttosituationstheymightnotnormallyfindthemselvesinforcingthecreativityofthestudentstobeexerted发挥.Role﹣playsituationsmightnotfleshoutquitelikeyouhopebecausesomestudentsareembarrassedaboutactingoutapartinadramaticfashion.Thiswillcausearole﹣playsituationtobeawkwardandunproductivebecauseoneormorestudentswillnotbeabletoparticipate.Whenastudentfeelsself﹣conscioushewillbemorelikelytobeworriedaboutwhatotherswillthinkofhimratherthanhowthesituationcanbesolved.Inlargerclassesrole﹣playcannotbedoneeffectivelybecauseallofthestudentshavetheopportunitytoparticipate.Mostofrole﹣playusesonlytwoorthreeindividualsinasituationsotherestofthestudentsjusthavetowatch.Thiswillcausethemtobecomedisinterestedandstoppayingattention.1Howdoestheauthorviewrole﹣play?A.Itmakesstudentscreativeandunderstandthingsbetter.B.Itmainlyhelpsstudentstogetalongwellwitheachother.C.Itisthemosteffectiveeducationmethod.D.Itiswidelypractisedineveryschool.2Whydosomestudentsfeelembarrassedinroleplays?A.Theycareaboutothers'opinionsonthemtoomuch.B.Theyarenotfamiliarwithotherparticipantsyet.C.Theyarenotgoodatdebatingoractingasothers.D.Theyusuallyforgettomakepreparationsforthetasks.3Whyisitunwisetouserole﹣playinlargeclasses?A.It'shardtoselectmembersfortherole﹣play.B.Thechancetoparticipateintherole﹣playislimited.C.Thepresenterswillfinditverydifficulttobeheard.D.Thereisnotenoughtimeforstudentstoplay.4What'sthemainpurposeofthepassage?A.Toshowpeople'sdifferentopinionsonrole﹣play.B.Togivesomegoodadviceonhowtocarryoutrole﹣play.C.Tointroduceadvantagesanddisadvantagesofrole﹣play.D.Toadvertiseanewmethodofteaching﹣role﹣play.
6分SummerCamptoChinaforHighSchoolStudentsThesummervacationisgettingclose.What'syourplanforthesummer?Ifyouhaven'tmadeanyplansforitwhynotconsidertakingpartinasummercamp?Ourschoolwillorganizeasummercampforhighschoolstudentsthissummer.Hereissomeinformationonit.TimingJuly17toAugust1PlacesDuringthesummercampstudentswillgotodifferentprovincesorcitiesofChinatohaveChineselanguageclassesandexperienceChinesecultureingroups.PossiblecitiesandprovincescouldbeBeijingTianjinHenanShandongHunanZhejiangYunnanJilinandsoon.Participants700Americanhighschoolstudentswildbeinvitedtotakepartinthesummercamp.100chaperons监护人willgowiththestudents.FeesWewillberesponsibleforthestudents'costinChinaincludingfoodaccommodationandgroupactivities.Studentswillpayforinternationaltravelfeesinternationalinsurancevisaapplicationfeesandsoon.Allstudentswillalsosharethechaperons'travelfees.RequirementsAllstudentsmustbeAmericancitizens;theymustbehighschoolstudentsagedbetween15and18;studentsshouldhavenoChineselearningbackgroundorlessthanthreeyearsofChineselearningexperiences.Alsostudentsshouldbehealthyenoughforinternationaltravel.Wehaveorganizedsuchasummercampeachyearforafewyears.Wehaveenoughexperiencetomakesurethatyou'llhaveagreattimeinChina.Sodon'thesitatetogetintouchwithusifyouareinterested.Formoreinformationpleasecall907﹣786﹣6320orsendane﹣mailtofteng@uaa.alaska.edu.1Whowouldbemostinterestedinthepassage?A.Peoplehopingforarelaxingandquietholiday.B.PeopleintendingtostayinBeijingforamonth.C.PeopleinterestedinChina.D.PeopleattendingaschoolintheUS.2Ifyouparticipateinthecampwhatneedn'tyoupay?A.HotelfeesinChina.B.Visaapplicationfees.C.Internationaltravelfees.D.Internationalinsurance.3Whichofthefollowingisarequirementforparticipants?A.HavingthreeyearsofChineselearningexperiences.B.Beingyoungerthan15orolderthan18.C.Beinghealthyenoughtotravelforalongperiodoftime.D.HavinganationalityofChina.
某物理兴趣小组按照练习册的“课题与实践”用如图所示的电路探究人体的电阻和人体的安全电压.他们先用如图a所示电路测出电源电压再用图b所示电路测出人体的电流并计算人体的电阻并将测量结果记录在下表中. 表一 表二 1从表一和表二中所测得人体干燥时电阻初步可知. 2当通过人体的电流为1毫安时人体就会有麻刺感若将此电流作为安全电流通过计算写出过程说明小张同学的安全电压大约为. 3测量仅供参考绝不允许人体直接接触算出的“安全电压”电路请对图c设置警示语.
15分LearningEnglishusedtobeaboutdevelopingfourskillsreadingwritinglisteningandspeaking.Afterallthat's1theexamsaredesigned﹣withfourskillstestedseparately. Butovertheyearseducatorshavecome2realizethatthesefourskillsshouldneverhavebeenseparatedbutpracticedallatonce.Andthebestwaytodothatisperhapsthroughpublicspeaking. AccordingtoMeiDemingaprofessorofEnglishatShanghaiInternationalStudiesUniversitygivingaspeechinaninternationallanguage3requireaspeakertointegrate使成为一体knowledgeandcontent4mentalandexpresstheresultsystematically.Speakersmustdrawonthebeautyofthelanguageasawholeinordertocommunicatewithanaudience. ThisiswhytheannualChinaDaily21stCenturyCupNationalEnglishSpeakingCompetitionhasbeengaininginpopularitysinceitbeganin1996.Thiscompetitionhasworked5amodelfordevelopingstudents'public﹣speakingskillsinEnglishandprovidedideasforEnglishteachinginschoolsandinlearninginabroadersensesaidMei. ShiGuohua6EnglishteacheratShanghaiQibaoHighSchoolheldasimilarview.HesaidthatkeycompetenceinacquiringEnglishtodaycomesfromtheabilitytoexpressoneselfratherthaninsimplypassingexams. Healso7stressthatcommunicationshouldgobothwayssincetraditionalEnglishspeakingeducationhasfocusedtoomuchongettingmessagesoutwhile8ignorethereceiverofthesemessages﹣theaudience.It'simportanttounderstandtheaudienceandbuildthelinkbetweenthecontentbeingdeliveredandtheinterestsoftheaudiencehesaid.It'salsoimportanttocreateanimpressiveopeningtoaspeech. AsChinacontinuestoplayanimportantroleinglobalconversationstherewillbemore9chanceforyoungChinesepeopletopresentChinaandtellattractingstories.AndinordertotellChinesestories10wellwefirstneedtodevelopamoreoverallEnglishskill.Workingonpublicspeakingisperhapstheplacetostart.
15分Dearteachersparentsandfellowstudents.Iamveryproudthatyouhavechosenmetospeaktoyoutoday.Ihavethreerosesherearedoneayellowoneandawhiteone.Theyare1thankthreegroupsofpeopleforthethreemostimportantthingsthatIhavelearntwhicharefriendshipeffortandtrust.IgivetheredrosetomyfriendsItwasmyChinesefriendsthattaughtmetosaymanythingsinChineseand2kindinvitedmetojointhem.Igivethewhiterosetomyteacherswhohavetaughtmethatthereisnosuccess3effort.Frommy4teacherIhavelearnttotrymybestwithwhateverIdo.Igivetheyellowrosetomyparentsforteachingmethatloveisabouttrust.WhenI5havedifficultywithmymathsmyfathertoldmethatIshouldworkharderat6.SeveraltimesIwokeuptofindanotebymybedside7say'I'msureyou'llbe8goodatmaths.'Weallhaveourownmemoriesaboutthe9happyofthelastthreeyearsandthepeopleto10wearethankfulsolet'sallstandupandsay'Thankyoufriendsteachersandparents!Weloveyou!'
两个物体分别挂在弹簧测力计上将它们同时浸没到水中发现两个弹簧测力计的示数的减小值相同.由此可以判断
R1R2两个电阻的阻值分别为10欧和20欧把它们并联在如图所示电路中闭合电键S电阻R1与R2两端的电压之比为电流表A1与A2示数之比为.若断开电键S电流表的示数不变.选填“A1”“A2”或“A3”
6分FourteenagegirlsfromMinnesotaUS.120hoursofnon﹣stoptogetherness.Nocellphones.Thisisnotarealityshowbutanadventurejourney. ItwasreallyperfectsaidJuliaRuelleofherrecentadventuretotheBoundaryWatersCanoeAreaWildernesswiththreeofherchildhoodfriends.Byunpluggingwehadanamazingtime. Lastyearthe16﹣year﹣oldtookpartinanessaycontestandcarriedoffaprize.Theawardwasa5﹣daycanoeandcampingadventurewithuptothreefriends.Noparentsorguideswouldbethere.SoJuliainvitedherfriendsAnnaWanderMadelineWilsonandJuliannaTorelli. ThefourMinnetonkaHighSchooljuniorsarrivedinElyfortrainingthedaybeforetheybeganthejourney.Theysetoutthenextdayat7a.m.quicklydevelopingaroutine. WeweredonepaddlingbynoonJuliasaid.Weatelunchatthecampsitesandthenitwastimeforhammocks吊床readingmakingfriendshipbracelets手镯andtalking. Thegirlshadallhadexperienceintheoutdoorsbefore. AnnahadbeentotheBoundaryWaterswithherfamily.IlovehowyouareseparatedfromeverythinginyourlifeespeciallytechnologyAnnasaid.WithoutherphoneshesaidI'mlessworriedaboutthings.MadelinetoohadbeentotheBoundaryWatersafewyearsback.ButthistimeIhadtopaddlerightandsetupcampshesaid.Thegirlsmadefireandcookedmealtogether.Noonewaseverhungryorhomesickbuttheywerenervousthefinalnightastheywaitedoutathunderstorm.Theyleftwetsleepingbagsinonetentandsqueezedintoanotherforthenight.EverythunderstormintheBoundaryWatersfeelshugeJuliasaid. Onthecarridehometheywereallontheirphonescatchingupwithfriends.ItwasalittleatalossturningmyphoneonsaidAnna.MentalhealthcanbeimprovedsomuchintheBoundaryWaters.Itreallyhelpstogetawayandreconnectwithyourself. 1HowdidJuliaRuellegetthechancetocamp? A.Shewonanessaycontest. B.Shewasinvitedbyherfriends. C.Sheperformedwellinherschool. D.Sheaskedherparentsforsupport. 2Whywasthe5﹣dayadventureuniquetothegirls? A.Theyneededtocompletemanytasks. B.Theyneededtofindaguideontheirown. C.Theyhadtoliveonaboatforseveraldays. D.Theyhadtolivewithouttheirsmartphones. 3Whatcanweknowaboutthegirlsfromthestory? A.Theyhadnotgotanycampingexperiencebefore. B.Theyallfeltrefreshedaftertheadventurejourney. C.Theyenrichedtheirlearningexperiencesbyexploring. D.Theyusedtokeepinclosetouchwiththeirfriendsbyphone.
某导体电阻为20欧若通过该导体的电流为0.3安则10秒内通过该导体横截面的电荷量为库该导体两端的电压为伏.当该导体两端电压为3伏时该导体电阻为欧.
下列各项利用连通器原理工作的是
10分DoyouspeakAmericanorBritishEnglish?Thismaybeaquestionyouoftenhear.Butinfacttherearemorethanjusttwotypesofthelanguage.1.Thecountryhasitsowndictionaries.TheCanadianPresshasitsownstyleguidetoo.AndtheEditors'AssociationofCanadajustreleasedathirdeditionofEditingCanadianEnglishearlierthisyear. 2.Canadahasthelanguagesofitsaboriginal土著的peoples.ItsclosenesstotheUSandastronghistoryofFrenchcultureasaresultofalongoccupationbyFrancealsohaveinfluenceswroteAmyThibodeauinTheGuardian.3CanadianEnglishisshowingitsyouthasanation. AuthorKatherineBarberhascollectedmanyCanadianismsinherbookOnlyinCanadaYouSay.4CanadiansalsousethesamewordsasAmericansindifferentways.ForinstanceinCanadaifyouwriteatestyou'retheonebeingtestedwhileintheUSyou'rethetestmaker.AlsoCanadiansusedifferentwordsfromAmericansforthesamethingsbachelorapartmentforstudioapartmentrunnerforsneakerorrunningshoeandtwo﹣fourforacaseof24bottlesorcansofbeer. TheseCanadianismsshowthedifferencesbetweenCanadianandAmericanculturetheBBCnoted.5theyaren'ttrulyinterestedinsoundingBritish;they'rejustinterestedinusingtheBritishconnectiontoshowtheirindependencefromtheirneighborsinthesouth. A.ThoughEnglish﹣speakingCanadiansarestillloyaltotheQueen B.TherearemorethanonelanguagesinCanada. C.Thecountry'shistoryexplainshowitsEnglishcameintobeing D.ForexampleCanadahasitsownEnglish E.ThoughCanadaisstillpartoftheCommonwealth英联邦 F.AmericanEnglishisalsospokeninCanada. G.DespiteusingsomeBritishspellingslikecolour
6分SincebecomingadadtothetwocutestchildrenontheplanetPrinceGeorgeandPrincessCharlottesuchresponsibilityhascausedPrinceWilliamtobecomeachangedmanaswell.InanewBBCdocumentaryKateMiddleton′shusbandexplainstheprofoundeffectfatherhoodhashadonhim. I′malotmoreemotionalthanIusedtobeweirdlythe33﹣year﹣oldroyaltellsTVpresentersAnthonyAntMcPartlinandDeclanDecDonnellyinapreviewofWhenAntandDecMetthePrince40YearsofthePrince′sTrustanupcomingfilmaboutthePrince′sTrustacharitysetupbyPrinceCharles. Nowcaringfora2﹣year﹣oldsonand8﹣month﹣olddaughtertheprinceadmitsthatlifehastakenonamoreserioustone. Ineverusedtogettoowounduporworriedaboutthingshecontinues.ButnowthesmallestlittlethingsyouwellupalittlemoreyougetaffectedbythesortofthingsthathappenaroundtheworldorwhateveralotmoreIthinkasafather. WhilebeingaparenthasunderstandablycausedWillstoworrymoreit′salsotaughthimtonevertakeforgrantedthetimehegetstospendwithhiskidsorwitnessingtheirmajormilestonesIt′sjustbecauseyourealizehowpreciouslifeisanditputsitallinperspective.Theideaofnotbeingaroundtoseeyourchildrengrowupandstufflikethat. AndtheawardforMostAdorableDadoftheYeargoestoPrinceWilliam. 1WhatchangedPrinceWilliam? A.responsibilityoffatherhood. B.BBCdocumentary. C.PrincessCharlotte. D.hisspecialstatus. 2What'sWhenAntandDecMetthePrince40YearsofthePrince′sTrust? A.anarticle B.acharity C.apreview D.afilm. 3WhattitlewasgiventoPrinceWilliam? A.Prince′sTrust B.MostAdorableDadoftheYear C.BestHusband D.MostResponsibleFather
酒精的密度为0.8×103千克/米3其单位读作.一只杯子最多可盛质量为0.3千克的水则它最多可盛下质量为千克的酒精.同一个杯子分别盛满酒精和水时对杯子底部的压强较大选填“酒精”或“水”.
8分Thepalm﹣forward掌心向外'V'signformedbyraisingandspreadingtherirsttwofingershasthreedifferentmeaningsinAmericanculture.Themostpopularmeaningofthe'V'signwasinventedin1941byaBelgiangVictorDeLavalaye.WantingasymbolforresistancetotheNazioccupationhecameupwiththesingleletter'V'whichstoodnotonlyforhisownfirstnamebutalsoforEnglishvictoryFlemishvirijheidandFrenchvictoire.ThesymbolismofthesignspreadveryquicklyandWinstonChurchilluseditconstantlyinpublicappearance.Thusthroughoutthe1940sand1950sthegesturemeantsimply'victory'.Thesecondmeaningcameinthe1960s.BecauseofitsmilitaryimplicationAmericanantiwarprotestorsusedthesignsarcasticaUy讽刺地againstthearmssothatitbecameknownasthe'peacesign'.Inthe1970sthe'W'signwhichhadlostitsmilitaryimplicationwasacommongrPltingamongfreedomloversacidheadspoliticalradicalsandultimatelyyoungpeopleingeneral.Sobyaboutthemiddleofthe1970sitnolongergavecluetotheuser'sphilosophy.Thethirdmemungistheoldestandleastcommon.Americanchildrenjokinglyput'V'whichresembles'horns'behindfriends﹣headsingroupsnapshot.TheyareunknowinglyreproducingsomethingthatsouthemEuropeanswouldfindhighlyoffensive.Thismischiefcalled'hornsoftheDevil'isavariantoftheEuropean'horns'gesture9wluchisobscene猥亵的.Herethe'w'signmeans'Yourwifehasbeencheatingonyouorwhenplacedbehindanother'sheadhiswifehasbeencheatingonhim.'IntheUnitedStatesthegestureistypicallygivenwiththepalmfacingtheviewer.TheBritishuseboththisversionandanolderpalm﹣backwardversion;thelatterisobsceneinAmericancultureandcorrespondstotheAmerican'finger'.Churchillgotsomesurprisedstaresin1941whenevidentlyunawareofthemeanusagehegavethepalm﹣backward'V'toBritishtroops.InEnglandtodayyoucouldhavetobeasocialhermitnottounderstandthedistinction.AstonishinglyhoweverMargaretThatcherrepeatedChurchill'senorafterhervictoryinthe1979election.1What'sthemostpopularmeaningofthe'V'sign?A.VictoryB.Peace.C.Cheat.D.Freedom.2WhydidChurchillgetsomesurprisedstaresaccordingtothelastparagraph?A.Hewasproudofhistroops.B.Hehadwantedtobeahermit.C.Hewasinsensibleofthemeanusageofthe'V'sign.D.HewantedtoshowcongratulationstoBritishtroops.3Whatcanbeleamedfromthetext?A.The'V'signsimplymeansvictorysince1941.B.The'V'signmeaningpeacewasinventedbyaBelgian.C.ThatchermadethesameerrorasChurchillafterhersuccessfulelection.D.AmericanantiwarprotestorsusedthesigntogreetamongfreedomloveyS.4Whatcanweconcludefromthepassage?A.It'snevertoooldtoleam.B.Thinkwellbeforeyouspeak.C.Actionsspeaklouderthanwords.D.Trytoknowculturediversityfullyandregionally.
10分ItissaidthatsomeoneonceaskedAlexandertheGreat'Wouldyoutakethenextcityifyouhadtheopportunitytodoso?'theGreatConquerorreplied'Opportunity?1;Icreateopportunities.'Alexander'swordstellusthatweshouldnotwaitforanopportunitytodosomething.2.Butthemostsuccessfulpeopledonotwaitforasuitableopportunity.Theycreateanopportunityforthemselves.JohnBunyanoneoftheworld'sgreatestwriterswrotePilgrims'Progress.ThisbookisamasterpieceofEnglishliterature.Doyouknowwherehewaswhenhewrotethismasterpiece?Hewasinprison.3.Hecreatedanopportunityforhimselfbyusingthetimeavailableintheprison.MichealFaradaythegreatscientistwasnotabletogetevenaprimaryeducationbecausehisfamilywaspoorandhehadtowork.Whenhewasthirteenyearsoldabookbinder装订商employedhim.4.Hereadasmuchashecould.Soonheleftthebookbinderandconcentratedhiseffortsonbecomingascientist.5.Eventhoughanopportunitydoesnotseemtobeoftherightkindyoushouldtakewhatevercomesyourwayandmakethebestofit.Ifyoudonotgoonwaitingforanopportunitybutdotheworkonhandtothebestofyourabilityyou'llbeabletoworkwonders.A.Idon'twaitforopportunitiesB.TimeandTidewaitfornomanC.OpportunitiesareallaroundyouD.SohehadaccesstoavarietyofbooksE.WisepeopleseizethefirstopportunitytoachievetheirdreamsF.HecouldnotwaittogetoutofprisonandsitatadesktowritehisbookG.Goodluckcomeswhenanopportunitycomesalongandyou'repreparedforit
6分Herearesomefancyitemshighlyrecommendedtoyoutoenrichorimproveyourdailylife. Beautyofmushrooms ArtistandphotographerJillBlisswillchangeyourviewofmushroomswithherphotoswhichyoucanfindathttp://bit.ly/mushroomphotos.Blissarrangesmushroomsandotherobjectssheseesinnaturealmostlikebunchesofflowers. OutintheStorm Allthecomponentsofgreatpopmusic﹣excitingsongwritingacommandingsingerandabandthatplayswithtotalcommitment﹣arethereandshininglikediamondsonWaxahatchee'snewalbumOutintheStorm.Inwhat'sturningouttobeaveryimpressiveyearforfemalebandleaderswriter/singerKatieCrutchfieldandherrockingall﹣femalebandareexperiencingonesuccessafteranother. Circa Ifyou'retiredfromyourinternationalflighttryingtorememberifthekidswillstillbeawakeforyourcallortoscheduleaconferencecallforworktheappCircacanhelpyoukeeptrackoftimeindifferenttimezonesoftheworld.It'llgiveyouonelessthingtoworryabout.Theappis﹩3.99foriOSandfreeforAndroidusers. TheirFinest ThemovieTheirFinestsetduringWorldWarⅡcentersonthefilmdivisionoftheBritishMinistryofInformationwhereCatrinColeGemmaArtertonisemployedmakingmoviesthatappealtowomen.FilmcriticPeterRainerwritesthatthefilm'sbestcomiccharacterisAmbroseHilliard…performedwithplentyofplayfulfunbythatgreatscene﹣stealerBillNighy.TheirFinestisavailableonDVDandBlu﹣ray. 1WhatdoweknowaboutKatieCrutchfield'sband? A.Itperformsfolkmusic. B.Itstargetaudienceiswomen. C.Itisanovernightsuccess. D.Itsmembersarefemale. 2WhatisthemainfunctionoftheappCirca? A.Totellworldtimeacrossdifferentplaces. B.Torecordusers'importantmeetings. C.Toremindusersofinternationalcalls. D.Torecommendoverseasflightstousers. 3WhichofthefollowingisoneofthecharactersinthemovieTheirFinest? A.GemmaArterton. B.AmbroseHilliard. C.PeterRainer. D.BillNighy.
如图是某同学测定“小灯泡功率”的实验电路图小灯额定电压为2.5V.在实验中至少要多次调节滑动变阻器电键闭合前滑片P应处于选填“a”或“b”端其目的是使然后接通电路再次调节目的是使.在实验时测得的数据如表.在整理数据计算功率时发现其中一次实验结果与其他两次实验结果相差很大经检查原来是有一个电流的示数读错了.该同学选用的电流表的量程是0﹣0.6安.试分析数据表中第次电流的读数错了正确的应为小灯泡额定功率P额=瓦.
图a所示仪器的名称是用来测量物体的在电学实验中电流表应该在电路中选填“串联’’或“并联”图b中电流表的示数为安.
体积为5×10﹣4米3的金属球浸没在水中求金属球受到的浮力F浮.
如图所示水平面上的圆柱形容器中分别盛有甲乙两种液体且甲液体对容器底部的压力等于乙液体对容器底部的压力.现在两容器中各放入一个物体漂浮在液面上且液体不溢出.下列说法中正确的是
8分AfunnythinghappenedbetweenChina'sfirstfemaleNobelPrizewinnergivingheracceptancespeechinSwedenandthatspeechreachingherhomecountryTwoentirelydifferentversionsappearedandthefakeonebecameaviralhit. Guesswhichversionisreal?Theonethatmatter﹣of﹣factlytellsaboutthediscoveryofartemisinin青蒿素ortheonewithextremeliterarystylecompletewithherfatherexplainingtheoriginofhergivennameandpoeticlinessuchasIliketranquility宁静tranquilastheleavesofsweetwormwood蒿草;Ishunthespotlightjustasthepetalsofsweetwormwooddo;Iaspire追求tobeuprightasarethestemsofsweetwormwood. WellsweetwormwoodistheplantfromwhichTuandherfellowscientistssuccessfullyextractedartemisinin.Manyreadersweresotouchedbytheliteraryversionthattheywereleftintears. TheyjustforgotthatTuisnotawomanoflettersbutoneofscience.Itwascompletelymadeupbysomeonewhoobviouslyhasgreatliterarytalentbutcouldnotunderstandtheinnerlifeofascientist.IhavenotmetagreatmanyscientistsChineseorforeignbuttheonesIhavespokentohavebeenno﹣nonsenseandwouldnotusesuchliterarylanguage. Idon'tknowwhomadeuptheTuspeechorforwhatpurpose.Itdoesnotstrikemeasfunny.Fortunatelynomainstreammediaseemedtohavebeenfooled.YetthefakeonehasprobablybeensharedmorethantherealonebecauseitplayedtotheChinesestereotype固定形式ofwhatsuchaspeechshouldbe. China'scyberspace信息空间isfullofeducationalandupliftingquotesandquitealotofthemaremadeup.ThereisajokethatsaystheUnitedStates'spyingnetworkcollectedandexaminedalltheInternetdatainChinaandfoundthattheChineseareaddictedtosuchchickensoupincludingthatfromuntrustworthysources. 1Whymanyreadersweremovedtotearsbythefakespeech? A.Becauseitwaswritteninliterarystyle. B.BecauseitwasonthebasisofTu'sreallife. C.Becausethereadershadpassionforscience. D.BecausethereadersknewabouttheoriginofTu'sgivenname 2Whomightbetheauthorofthefakespeech? A.ReporterfromtheUnitedStates'spyingnetwork B.Awriterwithgreatknowledgeofthesciences. C.OneofTu'sfans. D.Someonewithgreattalentinwriting. 3Whythefakespeechhasbeensharedmorethanrealone? A.Becausemanymainstreammediaswerefooled. B.BecauseitwastheChinesestereotype. C.Becauseitwasfunny. D.Becausethewriterunderstoodtheinnerlifeofascientist. 4Thepurposeofthearticleisto. A.provethatChineseareaddictedtofakenews. B.findoutwhomadeupthefakespeech. C.totellustherearelotsoffakenewsintheinternet D.provethatChinesescientistshavenoliterarytalent
8分HaveyoueverheardsomeonesayYoutotallylooklikeyou'reaJessicaorsomethingsimilar?PeopleseemtothinkthattheyknowwhatkindofpersonaJessicaoraMichaellookslike.Whyisthis? AccordingtoastudypublishedintheJournalofPersonalityandSocialPsychologyhumanstendtoassociatepeople'snameswiththeirappearancesandcanevenguesssomeone'snamebasedonhowtheylook. ResearchersattheHebrewUniversityofJerusalemIsraelcollectedthousandsofphotosofpeople'sfaces.Theylabeled贴标签于eachphotowithfournames.Thentheyaskedvolunteerstoguesswhichofthefournameswascorrect. Thevolunteerswereabletoguesstherightname38%ofthetime.Itseemsthatcertaincharacteristicsoffacesgivethemcluesaboutsomeone'snameReader'sDigestreported. Howeverthisonlyworkedwhenthevolunteerslookedatnamesfromtheirownculture.Inadditionthevolunteerswerenotasgoodatguessingtherealnamesofpeoplewhousednicknames昵称moreoftenthantheirrealnames.Thismayshowthataperson'sappearanceisaffectedbytheirnameonlyiftheyuseitoften. Thiskindofface﹣namematchinghappensbecauseofaprocessofself﹣fulfillingprophecy预言aswebecomewhatotherpeopleexpectustobecomeRuthMayofromtileuniversitytoldsciencenewswebsiteEurekAlert. Earlierstudieshaveshownthatgender性别andracestereotypes刻板印象canaffectaperson'sappearance.Theresearchersbelievetherearealsosimilarstereotypesaboutnames.ForexamplepeopletendtothinkthatmennamedBobshouldhaverounderfacesbecausetheworditselflooksround.PeoplemaythinkthatwomennamedRosearebeautiful.Theyexpectthemtobedelicateandfemalejustliketheflowertheyarenamedfor. 1Howisthisarticledeveloped? A.Bygivingexamples. B.Byaskingquestions. C.Bydoinganexperiment. D.Bycomparingdifferentcases. 2Whatcanbeinferredfromthestudy? A.Volunteersfounditmucheasiertoguessnicknames. B.Nameshavedifferentassociationsindifferentcultures. C.Volunteerscouldguessthecharacteristicsoftheinterviewees. D.Thepeopleinthephotosandvolunteerswerefromthesameculture. 3WhydosomepeoplelookliketheirnamesaccordingtoRuthMayo? A.Theywanttopleaseeveryonearoundthem. B.Theydon'twanttobedifferentfromothers. C.Theytendtobecomewhatothersexpectthemtobecome. D.Theyliketocopyfamouspeoplewhosharethesamename. 4Whatmaybethebesttitleforthispassage? A.Whatdeterminesournames B.Whywelooklikeournames C.Howwegetridofourstereotypes D.Howstereotypesaffectpeople'slooks
15分Mobilepaymentshavemadeourlifemoreconvenientand1enjoybyfreeingusfromthetroubleofhavingtotakeourwalletsoutwithus.Butasupermarkethasgoneonestepfurtherallowingcustomerstopay2instantusingjustafingertip.ShoppersatonestoreatBrunelUniversitycanpayforitems3usethermiquevein静脉pattern.intheirfingertipsandit's4firststoretoadoptsuchtechnology.Thisnewmethodofpaymentmeansthatcustomerscanpayforitemsinjustafew5second.Sthalerthecompanybehindthetechnology6explainthatitusesirufraredscanners扫描仪7readthepattemofveinsinthefmger.Ithinksthistothecustomer'sbankdetailswhich8keepsafebypaymentproviderWorldpay.Thefirmisalsoresponsible.9millionsofonlineshoppers'detailsaroundtheglobe.'Therearenoknowncases10thissecurityhasbeenviolatedanddozensofBrunelstudentsarealreadyusingthetechnology'SimonBinnscommercialdirectorofSthalertoldthereporter.
10分I'vealwaysbeeninterestedinwhywedothethingswedosolastyearIdecidedI'dliketostudypsychology.MostcoursesIfoundhoweverwereeithertooexpensivetoolongorwereimpossibletocombinewithwork.Iwasabouttogiveup1. AtfirstIhadnoideawhattheyweretalkingaboutbuttheyexplainedthataMOOCisaMassiveOpenOnlineCourse﹣anewtypeofcourseofferedcompletelyonlinetothousandsofpeoplewhichisdesignedsothatanyonecanfollowitregardlessofagelocationoreducation﹣2.Youcansearchforhundredsofdifferentsubjectsandcanusuallywatchashortintroductionvideotogetanideaofwhatthecourseisabout. 3.AtfirstIdidn'tknowwhattoexpectorhowmuchtimeImightspendstudying.Eachweektherewerevideolecturestowatchandreadingstodoaswellassomeshortassignments.Thelectureswerereallyinterestingandeasytofollowanditwasgreattobeabletowatchthemagainorpausethemtogoanddosomethingelse.MostMOOCshaveonlineforums论坛toowherestudentscandiscusswhattheyarelearning.Theseareoftenreallyfascinatingbecausetherearesomanydifferentopinions4.Ifyoureadeverythingontheforumsyouwon'thavetimetofinishthelectures! 5.Thereisahugerangeofcoursesonofferinhundredsofsubjectsandyouhavethechancetolearnnewthingsandbeincontactwithmanydifferenttypesofpeopleallfromthecomfortofyourownhome.WhynotcheckoutaMOOCandstartlearningsomethingnewtoday? A.buttheyareverytime﹣consuming B.allyouneedisanInternetconnection C.whenafriendsuggestedthatItryaMOOC D.Ichoseasix﹣weekSocialPsychologycourse E.itisdifficulttofindacoursetocombinewithwork F.ButtheadvantagesofMOOCsforbusypeopletodayareobvious G.Infactthatseemstobeoneoftheproblemsofthisnewwayofstudying
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