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如图的⊙O中，AB为直径，OC⊥AB，弦CD与OB交于点F，过点D、A分别作⊙O的切线交于点G，并与AB延长线交于点E． （1）求证：∠1＝∠2． （2）已知：OF：OB＝1：3，⊙O的半径为3...
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如图所示AB是⊙O的直径OC⊥AB弦CD与OB交于点F.过圆心O.作OG∥BD交过点A.所作⊙O的切
如图AB为圆O.的直径弦CD^AB垂足为点E.连结OC若AB=10CD=8则AE的长度为
2.5
3
2
1或者4
如图在⊙O.中半径OC与弦AB垂直垂足为E.以OC为直径的圆与弦AB的一个交点为F.D.是CF延长线
如图AB为⊙O.的直径弦CD^AB垂足为点E.连接OC若CD=6OE=4则⊙O.的半径等于
3
4
5
6
如图以线段AB为直径作⊙O.CD与⊙O.相切于点E.交AB的延长线于点D连接BE过点O.作OC∥BE
已知如图A.是⊙O.上一点半径OC的延长线与过点A.的直线交于B.点OC=BCAC=OB.1求证AB
已知AB是圆O.的直径C.为圆O.上一点CD⊥AB于点D.弦BE与CDAC分别交于点M.N.且MN=
如图的⊙O.中AB为直径OC⊥AB弦CD与OB交于点F.过点D.A.分别作⊙O.的切线交于点G.并与
如图的⊙O中AB为直径OC⊥AB弦CD与OB交于点F过点DA分别作⊙O的切线交于点G并与AB延长线交
如图在⊙O中OC⊥弦AB于点CAB=4OC=1则OB的长是.
如图在⊙O中AB为直径OC⊥AB弦CD与OB交于点F.在AB的延长线上有点E.且EF=ED.1求证D
如图在⊙O.中直径AB垂直于弦CD垂足为E.连接AC将△ACE沿AC翻折得到△ACF直线FC与直线A
如图AC为⊙O的直径AB为⊙O的弦∠A=35°过点C.的切线与OB的延长线相交于点D.则∠D=
20°
30°
40°
35°
如图在⊙O.中AB为直径OC⊥AB弦CD与OB交于点F.在AB的延长线上有点E.且EF＝ED.1求证
如图4⊙O.的直径AB与弦CD的延长线交于点E.若DE=OB∠AOC=84°则∠E.等于
42 °
28°
21°
20°
已知四边形ABCD中AB与CD不平行AC与BD相交于点O.那么下列条件中能判定四边形ABCD是等腰梯
AC=BD=BC
AB=AD=CD
OB=OC，AB=CD
OB=OC，OA=OD
已知如图AC和BD相交于点OOA=OCOB=OD求证AB∥CD.
如图所示已知AB为⊙O.的直径CD是弦且AB⊥CD于点E.连接ACOCBC.1求证∠ACO=∠BCD
如图所示AB是⊙O的直径OC⊥AB弦CD与OB交于点F.过圆心O.作OG∥BD交过点A.所作⊙O的切
如图4⊙O.的直径AB与弦CD的延长线交于点E.若DE=OB∠AOC=84°则∠E.等于
42 °
28°
21°
20°
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在直角坐标系中直线y＝x+m与双曲线在第一象限交于点A在第三象限交于点D与x轴交于点CAB⊥x轴垂足为B且S△AOB＝1 1求m的值2求△ABC的面积3求AD的长．
Astudybyresearchersshowedthattextingonmobilephonescouldhelpsmokersquitsmoking. Thestudy1publishonTuesdayinajournalshowedamongsmokers2receiveda12﹣week﹣longmobilephone﹣basedmessageonquittingsmoking6.5%stoppedsmokingbytheendofthestudy. TheresearchersfromtheSecondXiangyaHospitalofCentralSouthUniversityinChinasaidtheintervention干预couldhavea3greatreachthanin﹣persontreatments.Ithasgreatpotentialtoimprovepopulationhealthandshould4considerforlarge﹣scaleuseinChinaaccordingtothestudy. They5conductatrialacrossChinafromAugust2016toMay2017covering6totalof1369adultsmokers.Participantswereassignedtoa12﹣weekinterventionconsisting7eitherhigh﹣frequencyorlow﹣frequencymessagingortoacontrolgroupthatreceivedtext8messageunrelatedtoquitting.Twelveweekslater6.5%ofthemstoppedcontinuoussmoking9activeinthehigh﹣frequencygroup106%gotridofsmokinginthelow﹣frequencygroup.1.9%ofthemstoppedsmokinginthecontrolgroup.
Ihadmyfirstchocolatebaratfive.I'llneverforgetthedeliciouscomforting1.DuringWorldWarⅡwhentheRussianarmysweptwest2NaziGermanymanypeopleinTaurageescaped3.AniceladytookmetoHamburgonherwayof4whereIlivedonthestreetsalonelikethousandsofoilierchildreninthatwar﹣torncity.I5bystealingfood.Buttherewas6enough.Iwasskinandbones7tostarving. ThentheAmericantroopsarrivedwholookedbigandhealthy.8foodfromthemwaseasy.OneafternoonIwas9foodinamesstentanAmericansoldierliftedmeupbythecollar.Iwas10andIcouldseeitupsethim.TomysurprisehesaidHerehavesomeofthis.Hereachedintohisjacketandhandedmeachocolatebar.Itookasmall11.IthoughtI'dgonetoheaven. Thesoldiertookmetoanorphanage孤儿院12bytheRedCross.LaterIwassenttoanorphanageinAmericaandsoonafterafamily13me.Againaswiththatfirsttasteof14itwasasifI'dgonetoheaven.GrownupIgotan15treatingthetroubledsoldiers.16thesoldierssatinmyofficeandwonderedhowIcouldpossiblyunderstandthemorhelp17theirpainIwouldtellthemmy18andabouttheAmericansoldierGodsenttosavemylife. Inever19hisnamebutIrememberhiskindness.Isaid.AndthenIopenedadrawerinmydeskthatwasalways20andofferedthemsomechocolate. 1A.smell B.diet C.taste D.touch 2A.toward B.with C.by D.through 3A.inorder B.inpanic C.atpresent D.atwar 4A.sheltering B.handling C.disappearing D.fleeing 5A.survived B.experienced C.adjusted D.wandered 6A.ever B.still C.never D.even 7A.familiar B.close C.similar D.sensitive 8A.Begging B.Demanding C.Applying D.Stealing 9A.searchingfor B.preparingfor C.waitingfor D.longingfor 10A.puzzled B.scared C.disappointed D.astonished 11A.handful B.drop C.bite D.bar 12A.served B.raised C.powered D.run 13A.adapted B.adopted C.arranged D.abandoned 14A.fruit B.soup C.chocolate D.ice﹣cream 15A.profession B.education C.introduction D.organization 16A.However B.Whoever C.Whenever D.Whatever 17A.feel B.describe C.ease D.suffer 18A.advice B.story C.belief D.ability 19A.learn B.change C.consider D.forget 20A.rough B.empty C.smooth D.full
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如图▱ABCD的周长为16cmAC与BD相交于点OOE⊥AC交AD于E则△DCE的周长为
已知如图矩形AOBC以O为坐标原点OBOA分别在x轴y轴上点A坐标为03∠OAB＝60°以AB为轴对折后使C点落在D点处求D点坐标．
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Youneverknowhowfarakindactcango.Youdon'tknowwhoitcan1either.WhenGloriaPorterandJeffReickbegan2theyhadnoideahowmuchitwould3otherstoshower大量给予peoplewithkindness. 89﹣year﹣oldGloriaPorterwaslyinginhospital.Shecouldn'tleaveherward.Soto4boredomshewouldoftenstareoutsideherwindowtowatchconstructionworkersbuildingthenewfrontentrancetothehospital.Shewasn'texpectingoneofthe5towavetoher.Shecouldn'thelpbutwavebackatthekind6.Thiswasonlythestartofaspecial7betweenthetwo. JeffReickknewPorterwas8sohedecidedtosendakind9toherbyfindingsomechalkandwritingGetWellononeofthebeams梁facingher10.Ijustthoughtthatwas11Portersaid.SoIshoulddosomethingto12that. WhenPortersawconstructionworkersworkinghighabovethegroundonecoldwindydayshegrew13.ShewroteStaysafeonapieceofpaperwhichshethen14onthewindowfortheworkerstosee.WhenIsaw4Staysafe'onapieceofpaperI15andsaidtomycoworkers‘Didyouseethat?'Reicksaid. Thehospitalstafftookphotosofthatand16themonsocialmedia.Thesimpleactsofkindness17andmanypeoplewereemployedinsimilaractsincludingonewomanwhodelivered18pizzatotheconstructionworkers. Ijusttrytoleadbyexampleandneverexpectsomuch19Reicksaid.Ifeverybody20doesthingslikethattheworldwillbeabetterplace. 1A.disturb B.employ C.affect D.describe 2A.communicating B.singing C.arguing D.explaining 3A.require B.warn C.force D.encourage 4A.makefor B.putoff C.figureout D.escapefrom 5A.workers B.nurses C.doctors D.patients 6A.job B.inspiration C.gesture D.favor 7A.business B.connection C.difference D.trouble 8A.lonely B.upset C.ill D.poor 9A.1etter B.message C.note D.warning 10A.window B.entrance C.wall D.door 11A.impolite B.necessary C.familiar D.precious 12A.record B.return C.recover D.remember 13A.puzzled B.worried C.thrilled D.annoyed 14A.knocked B.installed C.placed D.drew 15A.camedown B.brokedown C.showedup D.turnedaround 16A.shared B.found C.mentioned D.deleted 17A.happened B.succeeded C.spread D.formed 18A.expensive B.free C.ordinary D.cheap 19A.participation B.satisfaction C.solution D.introduction 20A.merely B.apparently C.especially D.willingly
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处;每处错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改的词. 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. Lastweekwewatchedanexcitedbasketballmatchinourschool.ItisbetweenGrade1andGrade2students.Duringamatchtheplayersfromallteamsplayedveryhard.Grade2wasastrongerteam.HoweverforoursurpriseGrade1wonatlast.Theplayerjumpedandhuggedtocelebratetheirsuccess.JustthentheplayersfromtheotherteamthatapproachedandsaidCongratulations!tothem.Theyworesmilesonfacesandyoucouldn'ttellfromtheirexpressionsthattheyhadlostthematch.Weweretouchingbythesceneandfeltwhatimportantarolesportplaysindailylife.
Iwasgettingreadytogotobedwhenthephonerang.Thiscouldnotbegood.Mymindracedthroughthelistoffamilymemberswhomightneedhelpbutthevoicewashardlyfamiliar. LindathisisLesley.Ididn'tknowLesleywell.Wedidoccasionallyspeakwitheachotherbuttosaywewerefriendswasnotappropriate.Iaskedwhatsheneeded.Perhapssomethingreallyawfulcausedhertoreachsomeoneshebarelyknew.InsteadsheaskedmeDoyouhaveroomforaturkey?Inyourfreezer?Wehadlotsofroominourfreezerandinfacttoomuch.SureIrespondeddidyourfreezerbreakdown?NotexactlyLesleyrepliedbutIwillexplainwhenIarrive. Minuteslatercameahugefreezertruck.Lesleysteppeddownandexplainedthelease租约ofthegrocerystoreherhusbandservicedhadrunoutandthattheyhadtoemptyallthefreezersthatnight.Thinkingitwasashametothrowawayallthisgoodfoodtheydecidedtodropofffoodtoanyoneshecouldthinkof.NoticingourfreezerwasprettyemptyLesleyaskedtofillitup.Ourhomewastheirlaststopandanythingleftwouldhavetobeputinourfreezer.AnhourlatereverythingfinishedIaskedherWhenwillyoucomebackforallthis?LesleylaughedWedon'twantitback.Itisyours!Thanksforhelpingusout!Thentheywavedgoodbyeanddroveaway. Forhelpingthemout?Weopenedourfreezerdoor.Insidewereallexpensivefoodsweneverboughtbutoftenlongedtotry.Wewerestrugglingtobuygroceriesyetitwasnotsomethingwesharedwithanyone.Howeverourneedsweremetinanunexpectedwaybythatcall. 1Howdidthewriterfeelwhensheheardthephoneringing? A.Relieved. B.Anxious. C.Shocked. D.Angry. 2WhatdoestheauthorindicatebytheunderlinedsentenceinPara.2? A.Theywereshortoffoodsupplies. B.Theirfreezerwasnotfrequentlyused. C.Theyweregladtoputtheturkeyinthefreezer. D.Theirfreezerwastoosmalltofillmuchfoodin. 3WhydidLesleycallupthewriter? A.Becausethewriterwashergoodfriend. B.Becausesomethingawfulhadhappened. C.Becausesheknewthewriterwasinneed. D.Becauseshedidn'twantfoodtogotowaste. 4Whatcanbethebesttitleforthetext? A.WhoIsMyAngel? B.UnexpectedBargains C.AFriendonSpeakingTerms D.DoYouHaveRoomforaTurkey?
YesterdayIclearedupmyhouseandImeanreallyclearedupmyhouse.Theroomthatgavethemostresultswasmyhusband'soffice.ThereIfound:oneright﹣footedshoesize10helosttheotheronesomewhereasetofStarWarsvideosandtwosmallchinacatssomeonegavemelastbirthday.Icollectedthesefindsandtookthemdownstairsandlogged登录ontowww.eBay.com:theanswertoallourrubbish. WhatiseBay?Itaimstoprovideaglobaltradingplatformwherealmostanyonecantradealmostanything.TheideacamefromPierreOmidyar.BorninParisOmidyarmovedtoWashingtonwhenhewasstillachild.AtHighSchoolhebecameveryinterestedincomputerprogrammingandaftergraduatingfromTuftsUniversityin1988heworkedforthenextfewyearsasacomputerengineer.InhisfreetimehestartedeBayasakindofhobbyoriginallyofferingtheservicefreebywordofmouth.By1996therewassomuchtrafficonthesitethathehadtoupgrade升级andhebegancollectingfees.JoinedbyafriendPeterSkollandin1998byhisdynamicCEOMegWhitmanhehasneverlookedback.Eveninthegreatdot﹣comcrashesofthelate1990seBaywentfromstrengthtostrength.ItisnowoneofthetenmostvisitedonlineshoppingsitesontheInternet. Ifyouthinkaboutitit'saperfectInternetidea.Allyouhavetodoistakeane﹣photowriteadescriptionfilloutasalesformandyou'reinbusiness;theworldisyourmarketplace. SomeofthemorebizarregoodsupforofferhavebeenapieceofFrenchbreadpartiallyeatenbyJustinTimberlakeadvertisingspaceonaman'sheadandapairofusedfalseteeth. OneweeklaterIamproudofhavingacleanandtidyhomeand£110incash.Someoneevenboughttheshoe. 1WhydidtheauthorlogontoeBay? A.Tosellsomethings. B.Tobuyshoesforherhusband. C.Toexchangethingswithotherusers. D.Tosearchforthingsusedattheoffice. 2WhatcanweinferfromParagraph2abouteBay? A.Itaimstoprovideafreeservice. B.Itwastheideaofahighschoolboy. C.Ithasbecomemoreandmoresuccessful. D.Itfacedadifficultsituationinthelate1990s. 3TheunderlinedwordbizarreinParagraph4isclosestinmeaningto. A.popular B.unusual C.valuable D.unacceptable 4WhatdoestheauthorthinkofeBay? A.Sheissatisfiedwithit. B.Sheisworriedaboutit. C.Sheshowsnointerestinit. D.Shethinksitwastesalotofmoney.
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. DearRita I'mgladthatyouwillcompeteinthefinaloftheChineseSpeechContest.Congratulationtoyou!Herearemyadviceonhowtomakegoodpreparationsforyourspeech. Firstpickainterestingtopicsothattheaudiencewon'tgetboring.Seconddobroadresearchesonthetopictosatisfytheaudience'shungerforknowledge.ThenwriteyourspeechandturntoyourChineseteachersforhelpwhichadvicewillbebeneficial.Besidesmuchattentionshouldbepayingtoyourvoiceorbodylanguage.Trytospeakasfluentaspossible.Inawordyou'dbetterdowhateveryoucanwinthecontest. Wherethereisawillthereisaway.Lookingforwardtohearingfromyourgoodnews. Yours Joana
Thisweekwe'resharingourfavoriterecentreads.Tohelproundoutourrecommendationswealsotappedsomefolkswhoyou'veheardonCodeSwitchbefore﹣novelistsscholarspoetsandpodcasters. AllYouCanEverKnowbyNicoleChung ThebookisanextraordinaryhonestandsympatheticlookatadoptionraceinAmericaandfamiliesingeneral.It'salsosuchanengagingread.Istayedupwaytoolateonenightreadingitbecausethestoryjustpulledmein.AndI'verecommendedmanyofmyfriendstoreaditsoIcantalkaboutitwiththem.﹣JasmineGuilloryauthorofTheWeddingDateTheProposalandtheforthcomingbookTheWeddingPart. BecomingbyMichelleObama It'sadeeply﹣movingcomingofagestoryofMichelleObamainherearlylife.Therearesuchmovinganecdotesabouthowthisfamilyjustinvestedeverythinginthepossibilityofgivingtheirchildrenabetterlife.It'snotasweetbookbutatthesametimeit'sdeeplyhopefulaboutthepossibilityofwhathappenswhenyouworkhardwhathappenswhenyoulovehard.﹣TayariJonesauthorofAnAmericanMarriageSilverSparrowandotherbooks. RageBecomesHer:ThePowerofWomen'sAngerbySorayaChemaly WhatreallyimpressedmeaboutthisbookisthisideathatwomenshouldbeallowedtoexpresstheirangerparticularlyinLatinAmericanfamiliesandcommunities.IjustthinkSorayagoesintothisincredibledetailcitingscientificstudiesanddifferentworksofliteraturethatreallyconveythenecessitytofemaleangernotonlyforthehealthofwomenbutforthehealthofequalityinsociety.﹣JeanGuerreroreporterwithKPBSandauthorofCrux:ACross﹣BorderMemoir. 1WhowroteTheWeddingDate? A.TayariJones B.JeanGuerrero C.JasmineGuillory D.SorayaChemaly 2Whichbooktellsabitterstorywithhope? A.Becoming B.AllYouCanEverKnow C.SilverSparrow D.Crux:ACross﹣BorderMemoir 3What'sthepurposeofthepassage? A.Tosellbooks. B.Tocommentonbooks. C.Tosharereviewsofbooks. D.Tocollectopinionsofbooks.
HONGKONG﹣Cross﹣borderbusesoperatedbyHongKongcompaniesonFridaystartedtrialrunsontheHongKong﹣Zhuhai﹣MacaoBridgeHZMBinpreparationforthebridge'supcomingopening. ThetrialrunsarrangedbythegovernmentsoftheChinesemainlandtheHongKongSpecialAdministrativeRegionSARandtheMacaoSARwouldlastforthreedaysandaimedattestingthereadinessofboundarycrossingfacilities设施ofthethreeplacestheHongKongSARgovernment'sTransportandHousingBureautoldXinhua. Twomajorcross﹣boundarycoachtradeassociationsinHongKongwereinvitedtosendbusesandmemberstoparticipateinthetrialruns. FreemanCheungsecretaryofHongKongGuangdongBoundaryCrossingBusAssociationsaidhisassociationwouldrunonebuswithabout10passengersonFridayandSaturdayrespectivelyaspartofthetrialruns. OurbusstartedatnoonfromtheHongKongBoundaryCrossingFacilitiesandranallthewaytoZhuhaiinabout40minuteshesaidaddingthatthejourneywassmooth. AlanChansecretaryofanothertradeassociationwhoparticipatedinthetrialrunsasapassengersaidtheclearanceproceduresatboundarycrossingfacilitiesofthethreeplacesallwentonwellandsmoothly. TheboundarycrossingfacilitiesofZhuhaiandMacaoinparticularareoperatedinacollaborative合作的waywhichhelpsremarkablyshortenthetimeneededfortheclearanceprocedureshesaid. TheHZMBsituatedatthewatersofLingdingyangofPearlRiverEstuaryisamega﹣sizeseacrossinglinkingtheHongKongSARZhuhaicityofGuangdongProvinceandtheMacaoSAR. The55﹣kmbridgeisthelongestbridge﹣and﹣tunnel隧道seacrossingintheworld. ThebridgeismeanttomeetthedemandofpassengerandfreightlandtransportamongHongKongtheChinesemainlandandMacaoandtoestablishanewlandtransportlinkbetweentheeastandwestbanksofthePearlRiver. 1Welearnfromthepassagethat. A.AlanChanparticipatedinthetrialrunsasadriver B.twocoachtradeassociationsinZhuhaitookpartinthetrialruns C.theHZMBislocatedatthewatersofLingdingyangofPearlRiverEstuary D.the55﹣kmbridgeisthesecondlongestbridge﹣and﹣tunnelseacrossingintheworld 2Whatisthemainideaofthesecondparagraph? A.Therouteofthetrialruns. B.Theeffectofthetrialruns. C.Thepurposeofthetrialruns. D.Theevaluationofthetrialruns. 3Whatdoestheunderlinedwordfreightinthelastparagraphmean? A.Goodsthataretransportedbytruckstrainsshipsorplanes. B.Linesofraisedwaterthatmovesacrossthesurfaceofthesea. C.Partsoftheseawherefisharecaughtinlargenumbers. D.Theregularrisingandfallingofthelevelofthesea. 4Whichofthefollowingcanbethebesttitleforthenewsreport? A.HZMBIstoEstablishNewLandTransportLink B.Cross﹣borderBusesStartTrialRunsonHongKong﹣Zhuhai﹣MacaoBridge C.Mega﹣sizeSeaCrossingLinkingHongKongSARZhuhaiandMacaoSAR D.BoundaryCrossingFacilitiesofZhuhaiandMacaoOperatedCollaboratively
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改.增加:在缺词处加一个漏字符号^并在其下面写出该加的词. 删除:把多余的词用斜线\划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. LastSundaywhileeatinginarestaurantInoticeabowlfullofdumplingsonthetablenexttomine.Theymusthavebeenleftbysomeone.Justthentheoldmanentered.JudgedfromhisclothesIbelievedshewaspoor.Hesawthedumplingsleftonthetable.Lookingshylyhesatdownandstartedeating.Theothersaroundlookedhimpuzzledbutsomeevenlaughed.Howeverafterfinishingthedumplingshewentuptothedonationboxesonthecounterputonehundredyuaninitandleftthatleftusallshockedandashamed.Weshouldn'tjudgebyapersonjustfromhisorherappearance.
Thetonsofplasticwe'redumpingintheoceansisfindinganewhome﹣thestomachsofourbeautifulmarineanimals.YetanotherreminderofthisfactwashedashoreinEasternIndonesiathisweek.Alargeamountofwasteincludingdrinkingcupsandflip﹣flopswasfoundinthestomachofawhalethatdiedoffthecoastnearKapotaIsland. The9.5﹣metrespermwhale抹香鲸wasfoundbyrescuersfromtheWakatobiNationalPark. Thewhalehadswallowed5.9kilogramsofplasticwastecontaining115plasticcupsfourplasticbottles25plasticbagsandmorethan1000otherkindsofpiecesofplasticparkchiefHeriSantosotoldthereporter. AlthoughwehavenotbeenabletodeducethecauseofdeaththefactsthatweseearetrulyawfulsaidDwiSupraptiamarinespeciesconservationco﹣ordinatoratWWFIndonesia.Shesaiditwasnotpossibletodetermineiftheplastichadcausedthewhale'sdeathbecauseoftheanimal'sadvancedstateofdecay腐烂.Butthisisonlythelatest. FourAsiannations﹣IndonesiathePhilippinesVietnamandThailand﹣accountfor50%oftheplasticwasteintheoceansaccordingtoareportbyenvironmentalcampaignerOceanConservancyandtheMcKinseyCenterforBusinessandEnvironment.ThePhilippinesissecondtoIndonesiawhenitcomestoputtingawayplasticwasteintheoceansaccordingtoastudypublishedinthejournalScienceinJanuary.Ofthe3.2millionmismanagedwasteitproduceseveryyear1.29millionendsupintheocean. Areportreleasedearlierthisyearstatedthattheamountofplasticintheoceanislikelytoincrease. 1Whatcanweknowaboutthespermwhale? A.Itsstomachisthehomeofplasticwaste. B.Itdiedofswallowinglotsofplasticwaste. C.Itwasthefirstwhaletoeatplasticwaste. D.Ithadeatenmuchplasticwastebeforeitsdeath. 2Whichcanbestreplacetheunderlinedworddeduceinparagraph3? A.confirm B.cause C.approve D.contain 3Whichcountrydumpsthemostplasticwasteintotheoceans? A.Thailand B.Indonesia C.Vietnam D.Philippines 4What'sthemainideaofthepassage? A.Philippinesputsaway1.29milliontonsofplastic. B.AspermwhalewasfounddeadnearKapotaIsland. C.Muchdumpedplasticwastewasfoundinadeadwhale. D.Weshouldtakemeasurestoreducethewasteinwhales.
在同一直角坐标系中一次函数y＝kx﹣k与反比例函数y＝k≠0的图象大致是
某企业的年产值在两年内从1000万元增加到1210万元求平均每年增长的百分率．
LikemanymilitarywivesIhadtostandthelongseparationsuntilmyhusbandretired.ThoughIsupportedhiminhischosencareerI1everymomentawayfromhim. To2ourseparationsIwroteletterseveryday.Imadeupdozensofsmall3forhimwhichIsecretlyputintohisbagsothathecould4themwhenhewasouttosea.Tothisdaythosenotesarestill5tous. 6in1996myhusbandretiredfromtheNavy.Buttheonlyjob7formyhusbandwassixandahalfhoursofdrivingawayinNorfolkVirginia. Wespenteightmonths8.Thatwasourhardestseparationperhapsbecausewehad9plannedtobeapartagain.He10toapplyforjobsintheareawherewehopedtolive.Weexpectedwewouldsoonbeabletobe11again. OnedayLouiecalledmewiththegood12.HefoundajobinsouthwestVirginia.Wewereexcited!Therewasonlyonesmall13.Louiewouldhavetoliveinacamper露营车whileourdaughtersandIlivedinalittlehouseanhourandahalfofdriving14.Mydaughterswere15enoughtotakecareofthemselves?SoIleftthemandstayedwithLouie. LouieandIspentseveral16weekstogether.OnemorningafterheleftforworkIsat17inthecampertryingtorememberanypossessionthatwasaspricelessasthe18westayedtogether.Icouldn't19asinglething.Thenallofusmovedintothatcamperandlivedthereforayear.Itwaspurejoy!I'velearnedthatthegreatest20IhaveisthetimeI'vespentwiththeonesIlove. 1A.spent B.enjoyed C.hated D.missed 2A.dealwith B.preparefor C.thinkof D.fightfor 3A.stories B.gifts C.letters D.notes 4A.receive B.discover C.consider D.write 5A.precious B.important C.strange D.necessary 6A.Once B.Again C.Soon D.Finally 7A.convenient B.common C.ready D.available 8A.easily B.apart C.normally D.happily 9A.already B.just C.never D.always 10A.continued B.afforded C.managed D.liked 11A.rich B.young C.close D.together 12A.news B.job C.chance D.skill 13A.shame B.mistake C.fault D.problem 14A.far B.distance C.away D.farther 15A.clever B.old C.strong D.beautiful 16A.long B.simple C.wonderful D.busy 17A.patiently B.alone C.sadly D.calmly 18A.plan B.promise C.time D.place 19A.dependon B.thinkof C.careabout D.focuson 20A.treasure B.happiness C.luck D.feeling
Haveyoueverbeeninasituationwherefirstaidwasrequired?Didyouknowwhattodo?Didyoufeeladequatelyequippedandconfidentenoughtoperformfirstaidprocedures?AttheSOSCentertrainedprofessionsprovidesomeone﹣ononeandgroupcoursesinfirstaid.1. FirstAidForInfants婴儿 Thiscourseisdesignedforfirst﹣timeparentswhodonothaveabasicknowledgeoffirstaidforinfantsandbabies2orifyouwanttoavoidmorelifethreateningproblemsandillnessesyouwillgetthemfromthesetopics. FirstAidforChildren Everyparentknowsthefearofreleasingtheirsmallchildoutintotheworldawayfromtheirwatchfuleye.3.Thiscourseteachesparentshowtodeterminewhenaninjuryrequiresstitches缝针howtotreatbasiccutsaswellashowtotreatsunburnsandotherwounds. 4Ourmostpopularcourseoffersallkindsofapproachestoapplyingfirstaid.Inthistwo﹣daycourseyou'lllearnsomebasicskillssuchashowtorespondwhenachildoradultchokeswhattodoifsomeonehasaheartattackorstrokehowtoreacttosnakebitesandspiderbitesandmore.Thiscourseishighlyrecommendedforlearnersofallages. 5InadditionweareplanningtoopenspecialcoursesincommunitycentersaroundBeijing.FormoreinformationonSOSandourcourseselectionortoregisterforacoursepleasevisitwww.firstthigsfirst.com. A.BasicTrainingCourseinFirstAid B.VariousFirst﹣AidCoursesforBabies C.Whenyouwanttoeaseyourbaby'sdiscomforts D.Ifyouwanttoavoidtheriskofyourparents'injuries E.Classesareofferedonaregularbasisatourmainoffice F.Weofferavarietyofcoursesdesignedtomeetparticularneeds G.Aschildrengrowmoreadventuroustheriskofinjuryincreasesaswell
Howdoyoudealwithplasticbagsfromthesupermarket?Throwthemawayorreusethem?Howabouteatingthem? IndiancompanyEnviGreenhasmadeabagwithnaturalingredients成分.Itlooksandfeelsjustlikeplasticbutcanbebrokendowneasily.Thebagsbringnoharmtotheenvironment.Bothhumansandanimalscansafelyeatthem. EnviGreenfounderAshwathHedgespentfouryearsdoingexperimentswithacombinationof12naturalingredients.Theyincludepotatocornvegetableoilandbanana.Hemadetheingredientsintoliquidandusedtheliquidtomakethebag.AlthoughtheEnviGreenbagisabout35percentmoreexpensivethanacommonplasticbagithasmanyadvantages.AccordingtotheWallStreetJournalittakes1000yearsforcommonplasticbagstobreakdown.ButanEnviGreenbagcannaturallybreakdowninlessthan180days.Italsobreaksdowninlessthanadayinwaterandinabout15secondsinboilingwater.HedgewashappytoshowitinhisinterviewwithTheBetterIndia.IntheinterviewheputanEnviGreenbaginwaterandateitwithasmile. AccordingtoIndia'sMinisterofStateforAtmosphereForestandWeatherChangethecountryproducesmorethan15000tonsofplasticwasteeveryday.Butonly9000tonsareprocessed.InChina3billionplasticbagsareusedeveryday.MaybetheEnviGreenhagcouldbeasolutiontotheworldproblemofplasticpollution. 1WhyistheEnviGreenbageatable? A.Becauseitlookslikeplastic. B.Becauseitcanbebrokendowneasily. C.Becauseitconsistsofnaturalingredients. D.Becauseitdoesnoharmtotheenvironment. 2Ifacommonplasticbagcosts¥0.5what'sthepriceofanEnviGreenbag? A.¥0.85. B.¥0.675. C.¥0.65. D.¥0.475. 3WhichsentencecandescribeAshwathHedge'sexperiment? A.Ittookhimlessthanfouryearstosucceed. B.Hemadeaspecialliquidtoformthematerial. C.Hecombined4kindsoffoodtocreatetheEnviGreenbag. D.TheEnviGreenbagcannaturallybreakdownin15seconds. 4Whatcanweinferfromthelastparagraph? A.Plasticpollutioncanbecontrolledwithcombinedefforts. B.IndiahasbenefitedalotfromadoptingtheEnviGreenbag. C.Chinesegovernmenthaspaidattentiontoplasticpollution. D.Plasticpollutionisasevereprobleminsomedevelopingcountries.
假设你是李华受学校委托邀请本校国际班的学生一起参加纪念中国改革开放40周年展览活动请根据题示写一封电子邮件发到校园网告知他们活动内容要点如下: 1.时间及地点本周末学校图书馆; 2.展览内容照片实物高科技成果等; 3.学生交流. 注意:100词左右;可适当增加细节以使行文连贯流畅. 参考词汇:the40thanniversaryofreformandopening﹣up改革开放四十周年
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