首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
如图，点A，B是反比例函数y＝（x＞0）图象上的两点，过点A，B分别作AC⊥x轴于点C，BD⊥x轴于点D，连接OA，BC，已知点C（2，0），BD＝2，S△BCD＝3，则S△AOC＝ ．
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
如图26111正比例函数y＝x的图象与反比例函数y＝k≠0在第一象限的图象交于A.点过A.点作x
如图一次函数y=k1x+bk1≠0与反比例函数k2≠0x＞0的图象交于A16B.a3两点1分别求出一
如图点A.是反比例函数图象上一点过点A.作AB⊥y轴于点B.点C.D.在x轴上且BC∥AD四边形AB
如图一次函数y=kx+b的图象与x轴交于点A.与反比例函数y=x＞0的图象交于点B.2n过点B.作B
如图在直角坐标系中O.为坐标原点.已知反比例函数y=k>0的图象经过点A.2m过点A.作AB⊥x轴于
如图反比例函数y=x＞0的图象与一次函数y=3x的图象相交于点A.其横坐标为2.1求k的值2点B.为
如图在直角坐标系中O为坐标原点.已知反比例函数y=k＞0的图象经过点A2m过点A作AB⊥x轴于点B且
已知如图正比例函数y=ax的图象与反比例函数y=的图象交于点A.321试确定上述正比例函数和反比例函
已知如图正比例函数y＝ax的图象与反比例函数的图象交于点A.32.1试确定上述正比例函数和反比例函数
如图点M.﹣3m是一次函数y=x+1与反比例函数y=k≠0的图象的一个交点.1求反比例函数表达式2点
如图过原点的直线与反比例函数y=x＞0反比例函数y=x＞0的图象分别交于AB两点过点A作y轴的平行
如图反比例函数y＝k≠0x＞0的图象与直线y＝3x相交于点C.过直线上点A.13作AB⊥x轴于点B.
如图直线ly=x+1与x轴y轴分别交于A.B两点点C与原点O关于直线l对称.反比例函数y=的图象经过
已知如图正比例函数y=ax的图象与反比例函数y=的图象交于点A321试确定上述正比例函数和反比例函数
如图已知反比例函数y=m≠0的图象经过点14一次函数y=﹣x+b的图象经过反比例函数图象上的点Q.﹣
如图点A.是反比例函数图象上的一点过点A.分别向x轴y轴作垂线若矩形ABOC的面积为3则这个反比例函
如图在平面直角坐标系中过点A.－20作y轴的平行线交反比例函数y＝的图象于点B.AB＝.1求反比例函
如图在平面直角坐标系中一次函数y1=kx+b的图象分别交x轴y轴于A.B.两点与反比例函数y2=的图
如图一次函数y=ax+b与反比例函数y=的图象交于A.B两点点A坐标为m2点B坐标为﹣4nOA与x轴
如图已知一次函数y=kx+bk≠0的图象与反比例函数的图象交于A.B两点与x轴y轴交于点C.D两点点
热门试题
更多
theprogramtheyhavetostaythereforanothertwoweeks. A.Notcompleting B.Notcompleted C.Nothavingcompleted D.Havingnotcompleted
VisitChicagoChildren'sMuseum Inbrief Thismuseumoffersplentyoffunhands﹣onactivitiesforkids.HoweverthisisoneofthefewChicagomuseumsnotfunforthewholefamilyasadultsandolderkidswillbeboredtotears. Address700EastGrandAve.NavyPierChicago Phone312﹣527﹣1000 Publictransportation CTAbuslines#29StateStreet#65GrandAvenueand#66ChicagoAvenueallserveNavyPier. Parkingfees •MondaythroughThursday﹩20 •FridaythroughSunday﹩24 •Holidays24 Openinghours •Weekdays10am﹣5pm •Weekends10am﹣8pm Entrancefees •Adults﹩12 •Children﹩12 •Seniors65+﹩11 •Childrenunder5free Activities LocatedatoneofChicago'stoptouristattractionsNavyPierthemuseumoffersthreefloorsofactivitiesforkidsincluding •PlayItSafe﹣﹣allabouthomesafety •InventingLab﹣﹣providespartsandinstructionsforcreatingthings •KidsTown﹣﹣aplayroomrecreatingaChicagoneighborhoodwherekidscanpretendtodothingslikeshoppingforgroceriesanddrivingaCTAbus •ClimbingSchooner﹣﹣athree﹣floorclimbingbuilding •MyMuseum﹣﹣kidsgettocreatevariouspiecesofartthatareallaboutme •Skyline﹣﹣kidslearnaboutskyscrapersanddesigntheirownbuildings •TreeHouseTrails﹣﹣aplayareadesignedlikeaforest •Waterways﹣﹣wateractivitiesshowinghowpumpsanddamswork 1HowmuchwillJohn10hisparents40andsister6payiftheydrivetothemuseumat2pmonMonday? A.﹩36. B.﹩48. C.﹩56. D.﹩68. 2Kidswhoarefondofcreatingworksofartshouldchoose. A.PlayItSafe B.InventingLab C.MyMuseum D.Skyline 3IfyougotoKidsTownyoucan. A.goonashorttriptoaforest B.buysomegiftsforyourfriends C.knowmoreaboutpumpsanddams D.experienceChicagoneighborhoodlife 4WhatcanweknowaboutChicagoChildren'sMuseum? A.Itisathree﹣floorbuilding. B.Itisnotfitforadultsorolderkids. C.ItisthemostpopularmuseuminChicago. D.ItisoneofChicago'stoptouristattractions.
Neverforasecondtheboysaysthatmyfatherwouldcometomyrescue. A.Idoubted B.doIdoubt C.Ihavedoubted D.didIdoubt
breaksthelawshouldbepunished. A.Nomatterwho B.Whoever C.Who D.All
每年的10月31日是联合国确定的世界勤俭日.假设你是李华你最近给你在美国的朋友Mike的一封e﹣mail中专门讨论了勤俭的问题.你的e﹣mail内容应包括 1指出校园内中学生花钱如水没有节约的概念. 2分析产生这一现象的原因独生子女生活水平的提高追求时髦 3你对节俭的看法. 注意 1字数110左右. 2开头和结尾已写好不计入总字数. 3参考词汇世界勤俭日WorldThriftDay花销expenditure现象phenomenon奢侈extravagance这个提示不要为好范文中并未用到有了反而增加了难度 DearMike How'severythinggoing? AsyouknowWorldThriftDayfallsonOctober31.SothistimeI'dliketodiscussthriftwithyou.Inrecentyearsthemonthlyexpenditureofmiddleschoolstudentshasbeenonthesharprise.. Howaboutyourpointaboutthrift? Bestwishes! Yoursfaithfully LiHua
Yourworkwouldbemuchbetteryouarealwaysinsuchahurry. A.when B.because C.once D.unless
Shewantedtoiherstudentsbyhavingthemlistentothisinstructivespeech.
Iwaselevenyearsoldwhenthefirebrokeoutthatyear.IstoodoutsideinjustmyunderwearwhileIwatchedthe1thatIgrewupinrapidlyburntothe2.AfewminutesearlierIhadbeen3asleepinmynicewarmbedwhena4wokemeup.Mymum'sbedroomwasjustnexttomineandmybrother's.Afirehadbrokenoutthereand5her.WhileIstumbled跌跌撞撞地走aroundinthe6anddarknesssheranfromroomtoroomquicklywakingeveryoneinthehouse.Thehousehoweverwasover50yearsoldandmadeofwood.Beforewecoulddoanythingthefire7it.Weallbarely8outsidebeforethe9engulfed吞没everyroom. Istoodthere10whilethefiredestroyedmybooksclothesandtoys.Iwatched11whilemymumcriedandmyDadswore.I12whatwasgoingtohappentous13wehadlostallofourthings.AsIlookedaroundthoughIrealizedsomethingforthefirsttimeThethingsthat14aren'tthings.Irealizedatthatmomentthatwewereallalive.15thatwasessentialhad16thefire.Wewouldallbearoundtoloveeachotherformanyyearstocome.Andthatwasallthatmattered. Istillthinkofthatfireinthe17thathelpedmetobecomewhoIamtoday.Itshowedmefortheveryfirsttimewhatistruly18inthislife.Ithelpedmetolearnthatthelovewe19isfarmoreimportantthanthethingswe20. 1A.room B.house C.floor D.yard 2A.ground B.field C.ashes D.ruins 3A.loud B.quick C.good D.sound 4A.call B.scream C.voice D.noise 5A.caught B.frightened C.awakened D.denied 6A.smoke B.fire C.light D.noise 7A.spared B.possessed C.consumed D.found 8A.gotit B.madeit C.putit D.triedit 9A.flames B.dust C.silence D.fear 10A.nodding B.watching C.trembling D.staring 11A.curiously B.bravely C.peacefully D.helplessly 12A.wandered B.wondered C.fancied D.amazed 13A.nowthat B.enenif C.asif D.sothat 14A.rely B.mind C.matter D.value 15A.Something B.Everything C.Nothing D.Anything 16A.escaped B.saw C.survived D.passed 17A.afternoon B.day C.morning D.night 18A.basic B.reliable C.useless D.essential 19A.share B.protect C.feed D.remember 20A.apply B.aim C.support D.possess
Geneticengineeringinitsbroadestdefinitionmeanstocontrolaspeciessothataparticulartraitisincreasedinthepopulation.Atraitishowanorganism有机体looksoractsorwhatitdoes.Havingbrowneyesisatrait.Flyingincirclesisatrait.Climbingtreesisatrait. Theearliestformsofgeneticengineeringoccurredonfarms.Peopleselectedseedsfromplantsthathadmorefruitproductionortastierleavesthanotherplantsoftheirtypes.Thentheychosetosavetheseedsfromthebestofthatgrouptosowthenextyear.Soyearbyyearthefarmersproducedbetterandbettercrops.Thistypeofactivityprobablyhasbeengoingonsincemankindfirstsettledinvillagesandbeganmakingalifeforthemselvesinonelocationabout12000yearsago! Thesamesortofthingwouldhavealsohappenedwithanimals.Forexamplepeoplechosetoeattheanimalsthatdidn'thavefavorabletraitsandlettheanimalswiththefavorabletraitsreproduce.Itwasthousandsofyearsbeforemankindfiguredouthowplantsandanimalsreproducethemselves.Withthisknowledgepeoplecouldpollinate授粉plantsbyhandorkeepapairofanimalstogetherinordertodeliberatelycauseanincreaseinafavorabletrait. Itwasonlyinthelast250yearsthatscientistsbeganfiguringoutchromosomes染色体andgenesandtheroletheyplayinthewayonegenerationpassesitstraitsontothenext.Andit'sonlybeeninthelast30yearsthatscientistshavebeenabletocutoutspecificgenesfromoneorganismandputtheminanother.Itisthis30﹣year﹣oldtechnologythatisdescribedbythenarrowdefinitionofgeneticengineering.Mankindhaslongbeenabletohaveadeliberateimpactontheworldaroundhim.Henowpossessesthetoolstodeliberatelyimpacthimself.Somepeopleareafraidofwhatmightbedonewiththatpower. 1Thetextismainlydevelopedby. A.askingquestions B.examiningdifferences C.makingcomparisons D.givingexamples 2Paragraph2mainlytalksabout. A.thespreadofgeneticengineering B.theadvantageofgeneticengineering C.theoriginalapplicationofgeneticengineering D.thepopularityofgeneticengineering 3Theunderlinedwordtheminthelastparagraphrefersto. A.specificgenes B.specialtraits C.chromosomes D.scientists 4Whatcanwelearnaboutgeneticengineeringfromthelastparagraph? A.Ithasahistoryof250yearsbythenarrowdefinitionofgeneticengineering. B.Scientistsdon'tknowhowtomakegooduseofit. C.Peoplehaveamisunderstandingofitinthepast30years. D.Itisbecomingapowerfultoolofmankind.
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeopleareanxiousandself﹣consciousthatistheyareconcernedwiththeirownappearanceandactionstoomuch.NegativethoughtsareconstantlyoccurringintheirmindsWhatkindofimpressionamImaking?Dotheylikeme?DoIsoundstupid?AmIwearingunattractiveclothes? Itisobviousthatsuchuncomfortablefeelingsmustaffectpeopleunfavorably.Aperson'sself﹣conceptisreflectedinthewayheorshebehavesandthewayapersonbehavesaffectsotherpeople'sreactions.Ingeneralthewaypeoplethinkaboutthemselveshasadeepeffectonallareasoftheirlives. Shypeoplewhohavelowrespectarelikelytobepassiveandeasilyinfluencedbyothers.Theyneedfaiththattheyaredoingtherightthing.Shypeopleareverysensitivetocriticism.Itmakesthemfeelinferior自卑.Theyalsofinditdifficulttobepleasedbypraisesbecausetheybelievetheyareunworthyofpraise.AshypersonmayrespondtoapraisewithastatementlikethisoneYou'rejustsayingthattomakemefeelgoodIknowit'snottrue.Itisclearthatwhileself﹣awarenessisahealthyqualityoverdoingitisharmful. Canshynessbecompletelygotridoforatleastreduced?Fortunatelypeoplecanovercomeshynesswithdeterminationsinceshynessgoeshandinhandwithlackofselfrespect.Itisimportantforpeopletoaccepttheirweaknessaswellastheirstrengths.Eachoneofushashisorherowncharacteristics.Weareinterestedinourownpersonalways.Thebetterweunderstandourselvestheeasieritbecomestoliveuptoourchancesforarichandsuccessfullife. 1Thefirstparagraphismainlyabout. A.thecauseofshyness B.theeffectofshynessonpeople C.thefeelingsofshypeople D.thequestionsinthemindsofshypeople 2Accordingtothewriterself﹣awarenessis. A.harmfultopeople B.aweakpointofshypeople C.thecauseofunhappiness D.ahealthyquality 3Whatistheshypeople'sreactiontopraise? A.Theyarepleasedbyit. B.Theyfeelitisnottrue. C.Theyareverysensitivetoit. D.Theyfeeltheyareworthyofit. 4Wecanlearnfromthepassagethatshynesscan. A.beovercomewithdetermination B.helpustoliveuptoourfulldevelopment C.enableustounderstandourselvesbetter D.havenothingtodowithlackofselfrespect
TheoldwelllookedafterbythegovernmentinChina. A.is B.are C.hasbeen D.was
HadIknownaboutthiscomputerprogramahugeamountoftimeandenergy. A.wouldhavebeensaved B.hadbeensaved C.willbesaved D.wassaved
Swimminghelpstogettheblood循环throughourbody.
IfeltagreatsenseofawhenIreachedthetopofthemountain.
AngelGarciaCrespoisacomputerengineeratCarlosIIIUniversityofMadridinSpain.Hisgrouphasinventedanewwayfordeaf﹣blindpeopletowatchTV.Theideaforthetechnologygrewoutofpreviousworkbyhisgroup.Theteamhadalreadyworkedonmakingaudiovisual视听的materialsaccessibletopeoplewitheithervisionorhearingdisabilities.Butthegroupwantedtohelppeoplewithbothchallenges.Sotheyaskedsomedeaf﹣blindpeoplewhatwouldhelp. Inadditiontorelyingontheirsenseoftouchtocommunicatedeaf﹣blindpeoplecanalsogetandsendinformationwithaBrailleline.TheBraillesystemusespatternsofraiseddotstostandforlettersandnumbers.ABraillelineisanelectronicmachinewithachangeableBrailledisplay.Dotsriseupordropdownbasedontheinformationsenttothemachine. NowthenewsystemchangesTVsignalstodataaBraillelinecanuse.Thekeytothesystemisthepossibilityofusingsubtitles字幕tocollectTVinformationGarciaCrespoexplains.Subtitlestravelwiththeimage影像andtheaudioinelectromagneticwaveswedon'tsee.Butanelectronicsystemcankeepthosewaves. Firstacomputerprogramorapppullsoutthesubtitlesandvisualdescriptionsfromthebroadcastsignal.ThesystemthencombinestheinformationandchangesbothintodataforBraille. Nowanotherappgetstoworkwhichsendsthedataouttopeople'sBraillelinesondemand.ThisisdoneinrealtimeinlessthanasecondGarciaCresposays.Thisletsadeaf﹣blindpersonwatchTVasit'sbroadcast.ThesystemwillworkwithvariousBraillelinesaslongasthere'sabluetoothconnectionavailable.NowthesystemisonlyusedinEuropeanditshouldsoonbeavailableintheUS. 1WhatinspiredGarciaCrespo'sgrouptoworkonthenewtechnology? A.Deaf﹣blindpeople'spoorlife. B.Theirpityonthedisabledpeople. C.Thechallengestheyfaceinwork. D.Theirgroup'spreviousresearch. 2WhycantheelectronicsystemcollectTVinformation? A.Itcancombineallkindsofbroadcastsignals. B.Itcankeepthewaveswithsubtitlestraveling. C.ItcanworktogetherwithavarietyofBraillelines. D.Itcanpulloutthesubtitlesandvisualdescriptions. 3Whatdoestheauthorthinkofthefutureofthenewtechnology? A.Challenging. B.Bright. C.Rewarding. D.Hopeless. 4Whatshouldbeasuitabletitleforthetext? A.NewTechnologyIsImprovingDeaf﹣blindPeople'sLife B.ANewBrailleLineIsAppliedtoDisabledPeople'sLife C.ASpanishGroupMakesTVAccessibletoBlindPeople D.NewTechnologyHelpsDeaf﹣blindPeopleWatchTV
Duringthecourseofalifetimeweallmakemistakes.Andoftenwetakeforgrantedwhatwehavethinkingthatwe1whatwealreadyhaveorbelievingthatwewillneverneedanyoneto2usoutfromdifficultand3times. Suchwasthe4ofCecilia.Ceciliahadagreatjobanicehouseandeverythingsheneeded5shewasnotakindpersonforseveralreasonsthatbecame6onceyougottoknowher.Thefirstthingwasherlackof7forotherswhowerenotasfortunateasshewas.Shewouldnothelpanyone8wouldsheevenbegintoexpressanysympathyforanyone'stroubles.Her9wasthattheywerejusttoolazy. Butthencamethecatastrophicday.Herhusbandgotintofinancialdifficultytothepoint10hewasforcedtodeclarebankruptcy破产.Shefoundthatshewastheonewho11nothing. Nowshewas12forhelp.Shealsofoundoutthatherparentswereunwillingtohelpherbut13forherhisfamilywaswillingandabletohelpthemthroughthesedifficulttimesdespitethe14thatshehaddeliberatelykeptthemoutofherlife.15Ceciliawasassistedthroughchallengingtimesonce16shechangedtohertrueself. Butthisisnotthemainpointofthestory.Weallneedhelp17alonglife'spathwhetherwethinkwewillornot.Andifyouaretheone18helpjustrememberthisnomatterwhat19lateryouwillalwaysbe20inthefactthatyouhaveremainedstrongandtruetoassistthosethatneedyourhelp. 1A.realize B.treasure C.deserve D.manage 2A.help B.protect C.keep D.assume 3A.inspiring B.challenging C.pleasing D.moving 4A.character B.attitude C.case D.experience 5A.Therefore B.Otherwise C.Normally D.However 6A.obvious B.familiar C.unclear D.uncertain 7A.affection B.sympathy C.confidence D.caution 8A.so B.and C.or D.nor 9A.plan B.view C.promise D.advice 10A.when B.that C.where D.what 11A.learned B.shared C.knew D.had 12A.desperate B.enthusiastic C.considerate D.fearful 13A.unluckily B.fortunately C.sadly D.naturally 14A.section B.reason C.fact D.difficulty 15A.Nowthat B.Eventhough C.Aslongas D.Incase 16A.up B.away C.over D.apart 17A.somewhere B.everywhere C.anywhere D.nowhere 18A.refusing B.receiving C.owing D.giving 19A.happens B.comes C.develops D.forms 20A.involved B.anxious C.absorbed D.secure
Wouldyoumindwritingasofthepassage?About200wordsareOK.
HowtoProtectYourselffromHackersOnline Anincreaseincyber﹣attacks网络攻击makestheInternetseemlikeascaryplacethesedays.Howcanindividualsprotectormakeitmoredifficultforhackerstoaccesstheirinformation?Hereareseveraltipsthatcanhelpyouprotectagainstcyber﹣attacks 1 Hardpasswordsincludeupperandlowercaselettersnumbersandspecialcharacters.Theyshouldbeatleasteightcharactersinlength.Theyshouldalsonotspelloutwordseasyforhackerstofindlikeyourpet'snameorthenameofafamilymember. Changeyourpasswordregularly Averycommonmistakemadebyusersistocreateonehardpasswordbutthenneverchangeit.Rememberingalonglistofcomplicatedpasswordscanbedifficult.Butnopasswordisunbreakable.Hackersarebetterabletohackmultipleaccountsifthoseaccountsallhavethesamepassword.ApasswordmanagementservicelikeDashlaneorPasswordBoxcanhelpyoukeeptrackofhardpasswords.2 Clearyourbrowser浏览器history Thisgoesforallthedevicesyouuseinaday﹣yourhomecomputeryourworkcomputeroryourfriend'siPad.InternetbrowserslikeFirefoxorChromekeeptrackofwhereyou'vebeenandwhatyou'vedoneonline.Theykeeprecordsofeverysiteyouvisited.3Itisveryeasyforanyonewhoseesthatinformationtostealadetailedrecordofyouronlineactivities. DonotusefreeWi﹣Fi 4Oftenauserdoesnotneedapasswordtoconnecttothesewirelessnetworks.Theseservicesmightbeusefulbutthey'realsoaneasywayforhackerstoaccesseverythingonyourdevice. Useanti﹣virusprotection Therearemanyanti﹣virusservicesavailableforusers.5Someanti﹣virusservicesareevenfree.Theyareagreatwaytohaveaprofessionalhelpkeepingusersonestepaheadofhackers. A.Becarefulwhileusingthumbdrive. B.Theseservicespermituserstoeasilystoreandsecuretheirpasswords. C.Makeyourpasswordhardertohack. D.Theycanoffermanydifferenttypesofcomputerprotection. E.AnincreasingnumberofpublicplacesnowofferfreewirelessaccesstotheInternet. F.Informationaboutwhatyousentfromorsavedonyourcomputercanbekeptfordaysorweeks.
Thedoctordideverythinghecouldthepatient. A.save B.tosave C.saving D.saved
MayIaskaquestionafterclassSir? butnotduringmylunchbreak. A.I'msorry B.Anytime C.Certainly D.Goahead
YuanLongpingisoneofthemostfamousscientistsintheworld.He1struggleforthepastfivedecadesfortheChinesefarmers.Hegrows2iscalledsuperhybridrice.Thisspecialstrainofricemakes3possibletoproduceonethirdmoreofthecropinthesamefields.4usehishybridricefarmersareproducingharveststwiceaslargeasbefore. Findingwaystogrowmorericehasbeenhislifegoalsincehegraduatedfromcollegein1953.Atthattimehungerwas5disturbingprobleminmanypartsofthecountryside.Thereforehewantedtohelphismotherlandridofhunger6increasingthericeoutputwithout7expandtheareaofthefieldsandhefinallymadeit. 8agreatscientistheleadsaverysimplelife.Hebelievesthatapersonwithtoomuchmoneyhasmoreratherthan9fewtroubles.Hehasanotherdream10hisricecanbegrownaroundtheglobeandnohungerisintheworld.
DonnaStricklandisaprofessorintheDepartmentofPhysicsandAstronomy.ProfessorStricklandisoneoftherecipients受领者oftheNobelPrizeinPhysics2018withGérardMourouherPhDsupervisoratthetime.TheypublishedthisNobel﹣winningresearchin1985whenStricklandwasaPhDstudentattheUniversityofRochesterinNewYorkstate.Togethertheypavedthewaytowardthemostintenselaserpulsesevercreated. ProfessorDonnaStricklandisonlythethirdwomanevertohavewonaNobelPrizeinphysics.SheandherfellowwinnerswerehonoredforwhattheNobelCommitteecalledground﹣breakinginventionsinlaserphysics.ProfessorStricklanddevisedawaytouselasersasveryprecisedrillingorcuttingtools.Millionsofeyeoperationsareperformedeveryyearwiththesesharpestoflaserbeams. ﹣﹣﹣Howsurprisingdoyouthinkitisthatyou'rethethirdwomantowinthisprize? ﹣﹣﹣Wellthatissurprisingisn'tit?Ithinkthat'sthestoryofMariathatpeoplewanttotalkabout﹣﹣﹣thatwhyshouldittake60years?Therearesomanywomenouttheredoingfantasticresearchsowhydoesittakesolongtogetrecognized? Physicsstillhasoneofthelargestgendergapsinscience.Onerecentstudyconcludedthatatthecurrentratesitwouldbemorethantwocenturiesuntiltherewereequalnumbersofseniormaleandfemaleresearchersinthefield. ThelastwomantowinaphysicsNobelwasGerman﹣bornMariaGoeppert﹣Mayerforherdiscoveriesaboutthenucleiofatoms.BeforethatitwasMarieCuriewhosharedthe1903prizewithherhusbandPierre.Thisyear'swinnershopethatbreakingthishalfcenturyhiatuswillmeanthefocusinfuturewillbeontheresearchratherthanthegenderoftheresearcher. 1Whichofthefollowingbestexplainsground﹣breakingunderlinedinParagraph2? A.active B.talented C.creative D.awesome 2WhatdoweknowaboutProfessorStrickland'sachievement? A.Shecreatedthemostintenselaserpulsesbyherself. B.Sheadvocatedequalitybetweenmanandwomen. C.Shediscoveredthenucleiofatomswithherhusband. D.Sheinventedawayofusinglasersasaccuratecuttingtools. 3WhenwasthesecondNobelPrizeinphysicsawardedtowoman? A.in1963 B.in1985 C.in1903 D.in1958 4Whatcanbeinferredfromthestatementsinparagraph4? A.Woman'sachievementsinphysicsareasgreatasman's. B.Woman'sachievementsinphysicsaremoreandmorefantastic. C.Maria'sdiscoveriesresultedfromherlongtimeresearch. D.Genderdiscriminationstillexistsinthefieldofscienceresearch.
Afterseemedaverylongtimethebadly﹣woundedsoldiercamebacktolife. A.that B.it C.which D.what
MakingShortVideos Apictureisworthathousandwordsorsotheysay.Wellmotion运动picturescancontainevenmorememories.1Herearesomeappsyoucanusetomakeyourownshortvideos. Qupeiyin.cn RecitinglinesfrommoviesisaneffectiveandclassicwaytolearnEnglish.Sowhatifyoucoulddub配音recordingsaccompaniedbymovieclips剪辑andthensharethemwithfriends?2Younameit.Bycontributingyourvoiceyoucaneithermimic模仿theoriginalsoundtrackorcreatesomethingcompletelynewofyourown. Shorts 3WiththehelpoftheShortsappyoucanmakepicturesinyouralbumintoaslideshow.Choosefromanyoftheoff﹣the﹣shelfthemes﹣﹣﹣holidaytravelfriendshipandpartyforexample﹣eachmatchedwithitsownthememusicandslidebackground.Butifyou'renotsatisfiedwiththecombinationsfeelfreetodoalittlechangebyaddingtexttothepicturesorreplacingthemusicwithsomethinginyourownplaylist. VivaVideo Videomakingandeditingonceseemedawfullyhard.4Butthisappwilleaseyouintothefieldwithstraight﹣forwardfunctionsandcleardirectiontohelpyoucreateyourownvideostory.Apartfromfilterstickersandtextthecoolestpartofthisappisthatyoucanwritethenarrativesyourselfandaddyourownvoicetothevideo.5VivaVideorequiresarelativelypowerfulphonetorunsmoothly. A.Buthereisalittlereminder. B.That'swhyshortvideosarebecomingpopular. C.Theseappshaveavarietyofidentifications识别. D.ThisapphasmoviescartoonslecturesTVseries. E.Newbies网络新手andamateursdidn'tdaretoevengiveitatry. F.Videosandpicturesaren'tonlyforseparatepurposes. G.VideomakingandeditingiswhatApplefanswanttotry.
Nodecisionaboutanyfutureappointmentuntilallthecandidateshavebeeninterviewed. A.willbemade B.ismade C.isbeingmade D.hadbeenmade
Peoplebetteraccesstohealthcarethantheyusedtoandthey'relivinglongerasresult. A.willhave B.have C.had D.hadhad
Anoutbreakoffireoranaccidentisan突发事件.
Itwasthecultureratherthanthelanguagemadeithardforhimtoadapttothenewenvironmentabroad. A.where B.why C.that D.what
假定英语课上老师要求同桌之间交换修改作文请你修改同桌写的以下作文.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. 删减把多余的词用斜线\划掉. 修改在错词下面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. WhenIwasveryyoungmyparentsteachmethevalueofwritingthank﹣younotes.WhenevertheyaskedmetoIwouldrollmyeyesandwriteitafterbirthdaysandsomefestivalsunwilling.OnlyaftermygrandmotherpassedawayIrealizetheirimpact.MymomandIhadthetaskofcleanmygrandmother'shouse.IopenedadrawerinherbedsidetablewhichIfoundabeautifulwoodenbox.IopeneditbutwasshockedtoseeeverycardIhadeverwrittentoher.Theimpactofamomentstayedwithmeallmylife.WhenIhadchildrentheylearnedfromthevalueofwritingthank﹣younotesandstilldosoevenasgrownadult.
Beingphysicallyactivethreetimesaweekreducestheoddsofbeingdepressedbyabout16%accordingtonewUCLresearchcarriedoutaspartofthePublicHealthResearchCentre. ThestudypublishedinJAMAPsychiatryfoundatwo﹣wayrelationshipbetweendepressionandphysicalactivity.Peoplewhoincreasedtheirweeklyactivitywerereportedtohavefewerdepressivesymptomsbutthosewithmoredepressivesymptomswerelessactiveparticularlyatyoungerages. Researchersfollowed11135peoplebornin1958upuntiltheageof50recordingdepressivesymptomsandlevelsofphysicalactivityatregularintervalsinadulthood.Theyfoundthateachadditionalactivityperiodperweekreducedoddsofdepressionby6%.InEngland19%ofmenand26%ofwomenarecurrentlyclassedasinactiveandthisstudysuggeststhatactivitycouldsignificantlyimprovetheirmentalaswellasphysicalhealth. Assumingtheassociationiscausalphysicalactivityhasaprotectiveeffectagainstdepression.Ifanadultbetweenhistwentiesandfortieswhoisn'tphysicallyactivebecameactive3timesperweekhewouldreducehisrisksofdepressionbyabout16%saidDrSnehaloftheUCLInstituteofChildHealthleadauthorofthestudy. ProfessorMarkDirectorofthePublicHealthResearchCentresaidManypeoplearealreadyawareofthebenefitsofphysicalactivityontheirgeneralhealthbutnowweareseeingmoreevidencethatsuggestsitalsohasapositiveeffectonaperson'smentalwell﹣being.Thelatestresearchhighlightsjusthowimportantitistoensurethatpeopleareworkingandlivinginenvironmentsthatallowthemtobebothphysicallyactiveandmentallyhealthy. 1TheunderlinedwordoddsinParagraph1probablymeans. A.benefits B.intervals C.risks D.ages 2Accordingtothesecondparagraphifpeopleincreasetheirweeklyactivity. A.theirdepressivesymptomswillbefewer B.theirdepressivesymptomswillbemore C.theywillbecomemuchyounger D.theywillbecomemoredepressive 3WhichofthefollowingstatementsisTRUEaccordingtothepassage? A.DrSnehalthinksitisimportanttobebothphysicallyandmentallyhealthy. B.Theresearchshowsmenaremoreactiveinphysicalactivitythanwomen. C.Adultswhoinsistonphysicalactivitywillavoiddepressioncompletely. D.Increasingphysicalactivitycanfreepeoplefromdepressioninaway. 4Whatistheauthor'spurposeinwritingthepassage? A.Totellusafunstoryabouthowtoprotectusagainstdepression. B.Tointroducearesearchonthelinkbetweenphysicalactivityanddepression. C.Topersuadereaderstoincreasetheirweeklyactivity. D.Todescribethedisadvantagesofphysicalactivity.
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
湘公网安备 43130202000226号