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在一个干枯的井底正中央P点趴着一只青蛙，它能看到的视野范围如图a所示．天降大雨时井全部灌满水，若青蛙仍在P点，它的视野将发生变化，请你在图b中利用光路图确定青蛙视野变化的大致范围，并用阴影线表示出来...
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一个干枯的井底正中央P.点趴着一只青蛙如图a所示天降大雨时井中全部灌满水若青蛙仍在P.点它的视野将发
在一个干枯的井底正中央P点趴着一只青蛙它能看到的视野范围如图a所示．天降大雨时井全部灌满水若青蛙仍在
井底之蛙这个成语大家都很熟悉．如图所示在一个干枯的井底正中央P点有一只青蛙它的视野范围如图a所示．大
按照题目要求作图1如图1所示的物体A.静止在斜面上试作出物体A.的重力的示意图.2井底之蛙这个成语大
在一个干枯的井底正中央P点趴着一只青蛙它能看到的视野范围如图a所示．天降大雨时井中全部灌满水若青蛙仍
在一个干枯的井底正中央P点趴着一只青蛙它能看到的视野范围如图a所示天降大雨时井中全部灌满水若青蛙仍
在一个干枯的井底正中央P.点趴着一只青蛙它能看到的范围如图所示天降大雨时井中全部灌满水若青蛙仍在P.
在一个干枯的井底正中央P点趴着一只青蛙它能看到的视野范围如图a所示．天降大雨时井中全部灌满水若青蛙
在一个干枯的井底正中央P.点趴着一只青蛙它能看到的视野范围如图a所示天降大雨时井中全部灌满水若青蛙仍
在一个干枯的井底正中央P点趴着一只青蛙它能看到的视野范围如图a所示天降大雨时井全部灌满水若青蛙仍在P
在一个干枯的井底正中央P点趴着一只青蛙利用光路图在图中确定青蛙视野的大致范围．
2.5分有两口井井口的大小和深度都相同一个是枯井一个是水井在两口井底正中央的位置上分别有一只青蛙．
枯井中的蛙
水井中的蛙
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无法判断
1如图9所示是长在枝条上的苹果请在图中画出苹果受力示意图2在一个深坑正中央P.点趴着一只青蛙它能看到
在一个干枯的井底正中央P点叭着一只青蛙它能看到的视野范围如图a所示天降大雨时井全部灌满水若青蛙仍在P
在一个干枯的井底正中央P.点趴着一只青蛙它能看到的视野范围如图a所示天降大雨时井中全部灌满水若青蛙仍
在一个干枯的井底正中央P.点趴着一只青蛙它能看到的视野范围如图a所示天降大雨时井中全部灌满水若青蛙仍
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井底之蛙这个成语大家都很熟悉如图所示在一个干枯的井底正中央P.点有一只青蛙它的视野范围如图a所示大雨
井底之蛙这个成语大家都很熟悉.如图所示在一个干枯的井底正中央P.点有一只青蛙它的视野范围如图a所示.
在一个干枯的井底正中央P点趴着一只青蛙它能看到的视野范围如图a所示．天降大雨时井全部灌满水若青蛙仍在
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KarenJerrywheredidyougolastSunday? Jerry1 KarenHowdoyoulikeit? Jerry2Ithasthebestscreen.HaveyoueverbeenthereKaren? Karen3DidyouwatchthemovieTheAdventure4lastSunday? JerryNoIdidn't.4 KarenWonderful!Youcan'tmissit. JerryCouldyougowithme? KarenSorryI'vewatcheditthreetimesinWandaCinema.5hehasn'twatchediteither. JerrySoundslikeagoodidea.
AHelloTom.Youlookupset.1? BIcan'tdecidewhetherIshouldtakepartinourschoolartfestival. A2? BForthecelebrationofNationalDay. AOhIsee.Whenwillthefestivalbegin? BIt'llbeginonSeptember25th. AIknowyou'regoodatsinging.3? BGreatidea!But4? AHowaboutIloveyouChina? BIt'stoodifficult.I'mafraidIcan'tsingitwell. A5.Youhavealongtimetopracticeitwell. BIagreewithyou.
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—HaveyoueverbeentoFunTimesAmusementPark?—NoIhaven't.—.Let'sgotheretomorrow.A.Metoo. B.Meneither. C.SoIhave. D.SohaveI.
IfyouwanttobecomeafluentEnglishspeakeryoushouldtakesomeadviceTherearefourskillsinlearningEnglish.Theyarereadinglisteningspeakingandwriting.Themostimportantthingyoumustrememberisthatifyouwanttoimproveyourspeakingandwritingskillsyoushouldfirstmastertheskillsofreadingandlistening. Readasmuchasyoucan.Butyourreadingmustbeactive.Itmeansthatyoumustthinkaboutthemeaningofthesentencethemeaningoftheunfamiliarwordsetc.Thereisnoneedforyoutopaymuchattentiontogrammarsortrytounderstandalltheunfamiliarwordsyoucomeacrossbutthefactthatyouseethemforthefirsttimeandrecognizethemwheneveryouseethemforexampleinotherpassagesorbooksisenough.Itwouldbebettertoprepareyourselfanotebooksoyoucanwritedowntheimportantwordsorsentencesinit. Asforlisteningtherearetwochoicesbesidesreadingyoucanlisteneverydayforabout30minutes.Youcanonlypayattentiontoyourreadingandbecomeskillfulatyourreadingthenyoucancatchuponyourlistening.Sinceyouhavelotsofinputsinyourmindyoucaneasilyguesswhatthespeakerisgoingtosay.Thisnevermeansthatyoushouldnotpracticelistening. Forlisteningyoucanlistentocartoonsorsomemoviesthatarespeciallymadeforchildren.Theirlanguagesareeasy.OrifyouaregoodatlisteningyoucanlistentoVOAorBBCprogramseveryday.Againthethingtorememberisbeingactiveinlisteningandpreferablytakingsomenotes. Ifyoufollowthesepiecesofadviceyourspeakingandwritingwillimproveautomaticallyandyoucanbesurethatwithalittleefforttheywillbecomeperfect. 1Accordingtotheauthorwhichshouldyouimprovefirstamongthefourskills? A.Readingandlistening. B.Readingandwriting. C.Writingandspeaking. D.Speakingandlistening. 2Theunderlinedphrasecomeacrossinthesecondparagraphcanprobablybereplacedby. A.meetbyaccident B.discover C.findonpurpose D.lookfor 3Theauthorseemstoagreewiththeviewthat. A.everyoneshouldlistentoVOAorBBCprogramseveryday B.youneedn'tpracticelisteningifyoukeeponreadingeveryday C.beinggoodatreadingishelpfulinimprovingyourlistening D.youshouldtakenotesofwhateveryouarehearing 4Thepassageismainlyabouthowto. A.choosesuitablelisteningmaterials B.dealwithnewwordsinreading C.improveyourEnglishasquicklyaspossible D.becomefluentinspeakingandwritingEnglish
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ItisoftensaidthatWesternEuropeansspeakEnglish.FromtravellingallthroughEuropeIknowthatthisisnotentirelytrue.SomeregionsofEuropehavea90%ofEnglishspeakingratewhileinotherpartsEnglishisgenerallyatonguewhichisimpossibletounderstand.ThedivideitseemslieswiththeRomancelanguages. InScandinaviaGermanyBelgiumtheNetherlandsandtherestoftheWesternEuropeannonRomancelanguagespeakingregionsEnglishseemstobeunderstoodandspokenjustlikethepeople'sfirsttongue.InIcelandIhaveneverexperiencedEnglishspokensowellandsowidelybyanonnativespeakingcountry.AndIhavealmostnevermetaDutchpersonwhodidnotspeakEnglishalmostaswellasmycountrymen. ButwhenyoumovetosouthofWesternEuropealittlesomethinghappens.Englishbecomesalessusefullanguagefortravel.YoujustcrossovertheRomancelanguagebarrierandintoSpainPortugalFranceandItalywhereEnglishisspokenataratethatdoesnotseemtobemuchhigherthaninChinaLatinAmericaorSoutheastAsia. TravellingthroughEuropeandworkingathotelsaroundtheworldthatarepopularwithEuropeanshavegivenmeadeeperviewoftheirusageofforeignlanguages.ThenorthernEuropeanscanoftenspeakfiveorsixlanguageswhiletheRomancespeakershardlyknowmorethantheirbirthtongue.AndifyouthinkthatSpanishandItalianaresosimilarthattheycanbeunderstoodbyeachotherItellyouthatthisiscompletelywrong.SpaniardsandItaliansdon'tevenunderstandeachother.ItisalsonotafactthatpeoplefrombothofthesecountriescancommunicateinFrenchonlythosewhoputahighamountofeffortintolearningEnglishorhavelivedabroadforyearscanspeakEnglishwell. PeopleoftensaythatFrenchpeoplereallyunderstandEnglishbutrefusetospeakitbutfromwatchinghundredsofFrenchtravellersovertheyearsstrugglewithEnglishabroadaswellasfriendsinFrancetryinginvain徒劳tocommunicatewithmeIknowthatthisisnottrue.Englishissimplynotwidelyspokenthereoutsideofthelargecities. 1AccordingtothepassagewhichstatementdoyouthinkisTRUE? A.InIcelandEnglishisnotspokenverywell. B.DutchpersonscanalmostspeakEnglishaswellastheauthorhimself. C.SpanishandItalianaresosimilarthattheycanbeunderstoodeasilybyeachother. D.EnglishisaswidelyspokenasFrenchinFrance. 2Theauthorisprobablyan. A.Frenchman B.Dutchman C.American D.Chinese 3Whatdoesthisinthelastparagraphmean? A.WesternEuropeansspeakEnglish. B.FrenchpeoplereallyunderstandEnglishbutrefusetospeakit. C.HundredsofFrenchtravellersstrugglewithEnglishabroad. D.FriendsinFrancetryinvaintocommunicatewithmeinEnglish. 4Whereisthepassagemostprobablytakenfrom? A.Atraveljournal. B.Afashionmagazine. C.Ageographytextbook. D.Anewsreport.
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Passage3 TheBritishgovernmenthasstarteda￡10millionMandarinExcellence普通话优秀Program.Theprogramwillhavehelpedover5000Britishstudentstobefluent流利的inMandarinChineseby2020. Theprogramisledbylocalschoolsandsupported支持byUniversityCollegeLondon.Sofar14schoolshavetakenpartintheprogram.HundredsofsecondaryschoolstudentsinEnglandhavetakenlessonsinMandarinChinese.OverthenextthreeyearstheywillspendeighthoursstudyingMandarinChineseeveryweek. NedMillerisanofficeroftheBritishgovernment.HesaidahighleveloffluencyinMandarinChinesewouldbecomemoreandmoreimportant.Languageskillsareimportantforjobsandlife.MandarinChineseisspokenbythelargestnumberofpeopleintheworld.Itisalsooneofthelanguagesthatmattersthemosttoourcountry'sfuture.IftheUnitedKingdomwantstoremaincompetitiveintheworldwedoneedfarmoreofouryoungpeopleleavingschoolwithagoodcommandofMandarinChineseMilleradded.Wehopethatouryoungpeoplecouldbegiventhechancetostudythelanguage.WewantthemtobefluentinbothspokenandwrittenMandarin.TheMandarinExcellenceProgramwillhelpusdothis.Itwillnotonlyopenthestudents'eyesbutalsogivethemagreatadvantagewhentheyentertheworldofwork. Britishkidsinfactarenotalone.InAmericaabout200000studentsarestudyingMandarinChinese.Itisbelievedthat800000morewilljointhemoverthenextcoupleofyears. 1BritishstudentswillhavebeenfluentinMandarinChinesethroughtheprogramby2020. A.200000 B.Lessthan5000 C.About800000 D.Over5000 2Theprogramisledby. A.UniversityCollegeLondon B.localschools C.aBritishofficer D.theAmericangovernment 3What'stheChinesemeaningoftheunderlinedwordcommandinParagraph3? A.掌握 B.命令 C.要求 D.希望 4NedMillerhopedyoungpeoplecouldbegiventhechancetostudyChinese. A.Chinese B.American C.British D.French 5Whatdoesthewriterwanttotellus? A.TheprogramhasnousehelpingstudentslearnChinesewell. B.FeweryoungpeopleabroadliketolearnChinese. C.MandarinChinesehelpstheUKimproveitsrelationshipwithChina. D.MandarinChineseisbecomingmoreandmoreimportant.
YangYu14ofJilinhasn'tadapted适应himselftothechangesinhisclassroomsincethefirstdayofthistermteachersnowholdclasseswithacomputerandscreen.InsteadofwritingontheblackboardasbeforetheyclickthemouseandshowusthePowerPointPPTslides幻灯片onthescreen.SometimesthereisnotevenonewordontheblackboardafterawholeclassYangsaid.I'mnotquiteusedtothemultimedia多媒体class. MoreandmoremiddleschoolsinChinanowusemultimediainclass.TeachersputtheircoursesonacomputerandshowtheirlessonswithaPPT.Tomakethelessonsmoreinterestingtheyplayanimations动画andmovies. HuWeianEnglishteacherinSichuanthinksmultimediaclassseemstobemoreinterestingthantraditionalclasses.HisstudentspracticetheiroralEnglishbyfollowingmusicandanimationsonacomputer.IthelpsthemspeakEnglishbravelyandactivelyHusays.Besidesit'salsoahelpfultoolforteachersbecauseshowingPPTssavesusmoretimethanwritingnotesontheblackboard. HowevermultimediaclassmakesthingsmoredifficultforstudentslikeLiuYifanga15﹣year﹣oldBeijinger.Shecan'ttakeallhernotesasbefore.TherearenowordsontheblackboardbutmanyonthescreenLiusays.BesidesmyteacherspeakssofastthatIcan'tcatchup. Liuthinksitisnotthebestwaytolearn.FormeIliketheoldway.IagreethatthemultimediaishelpfulbutsoistheblackboardLiusays.IfteacherscanusebothtoolsproperlyinclassIthinkthatwillbereallygoodforeveryone. 1Whatequipment设备doYangYu'steachersuseinmultimediaclass? 2AccordingtoParagraph2whatcanteachersdotomaketheirlessonsmoreinteresting? 3HowdoteacherssavestudentsmoretimeinclassaccordingtoHuWei? 4HowmanyreasonsdoesLiuYifangmentionwhyshecan'ttakeallhernotesasbefore? 5What'sLiuYifang'sadviceonclassteaching?
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MostpeopleareChineseinSingaporesoyoucansimplespeakPutonghuathere.
Deardaughter YouareawonderfulpersonandyourmotherandIloveyou.Itwillnotbelongbeforeyouleaveschooltomakeyourwayintheworld.CanIgiveyousomefriendlyadvice?Herearesomethingsthatyoushouldneverdo. ★Nevergetupsetwithyourlook. Wethinkyoulookgreat.1Eatwelltakeexerciseandbehealthy.Somegirlsworrytoomuchaboutnotgettingtheperfectshape.Youlookfine. ★Neverputyourselfatseriousrisk. 2Andsometimesyouhavetoavoidthingsthatlookliketheymightbefunlikesmoking. ★3Youaregreatandabletoachievegreatthingssobelieveinyourself.Whenthingsgobadlyneverstopbelieving.Somegirlsgetupsetdoubtthemselvesandloseconfidence.Thenmanyproblemscanfollow. ★Nevergivelessthanyourbest. Weareveryproudofwhatyouhaveachieved.Youshouldbeproudtoo.4 ★Neverforgetthatyourparentsloveyou. Whateverhappensinlifeyourfamilywillstillbeyourfamily.5Wearehereforyouandwewilltrytohelp. Love Dad
Iranintoquiteafewlanguageproblemswhilevacationingwithmyfamilylastsummer.ThemostembarrassingwaswhenmyMomapologizedtothepeoplewewerestayingwithbecauseherpantsweredirty.Theylookedatherinamazement吃惊notknowinghowtoreact.YouseeMomhadfallenoverandgottenmudonherjeans.ButinBritainpantsmeansunderpantsorknickersnottrousersasitdoesbackhome. Katie﹣FromAmerica Iwenttostaywithafriendonthewestcoastlastsummer.Herflatwasonthefirstfloorofahigh﹣risebuildingsoIgottheliftup.ThenIwanderedroundforageslookingforherflatbutcouldn'tfindit.FedupandtiredIfinallyhadtogoouttofindaphonebox.Sheexplainedthatherflatwasonthefirstfloorwhichformemeantthegroundfloor. David﹣FromBritain WhenIaskedfortherestroominabigdepartmentstorepeoplekeptdirectingmetoaroomwithseatswhereIcouldsitandrest.IttookmeyearstogetthroughtosomeonethatIonlywantedthetoilet! Tom﹣FromAmerica Lastsummerwewentonatwo﹣weekfamilytouringholidaysoDadhiredacarovertheInternet.Thiswasanoldvehicle汽车andthereturnedouttobelotsofthingswrongwithit.Whenhephonedthehirecompanyandtriedtoexplainthatthelockonthebootwasbrokentheythoughthewastalkingaboutfootwear!Hehadnoideatheirwordforbootwastrunk.Intheendwewenttoagarageandjustsolvedtheproblem. Mary﹣FromBritain 1HearingKatie'smother'swordsKatie'sfriendswereinsurprisebecause. A.Katie'smothergotmudonherjeans B.Katie'smother'sunderpantsweredirty C.theydidn'tknowEnglish D.theymistookpantsinAmericanforunderpants 2Davidwentouttofindaphoneboxto. A.phonethepoliceforhelp B.phonehisfriendforhelp C.tellhisfriendhecouldn'tgotovisither D.apologizeforhisbeinglate 3WhenTomaskedfortherestroomthepeoplearoundhimthought. A.hewantedtogotoadepartmentstore B.hewantedthetoilet C.hewantedachair D.hewantedtohavearest 4Theunderlinedwordgarageisprobably. A.aplacetorepaircars B.acar C.agasstation D.aparkingplace
Flyingahotairballoonisfiullofchallenge.Doyouwanttoflyit?Ifsohereissomeadviceforyou. Understandingthebasics ★Takeatrainingcourseandgetalicense. ★Knowhowtheballooncanfly.Addpropane丙烷tothefiretomaketheballoonfly. Makesureyouhaveenoughenergyinthetank箱.Checkyourtankattimes. ★Learnhowtostayatarightheight.Raiseorlowertocontroldirectionsbythewind.IfyouwanttoloweryoucanpullaredropetoletthehotairoutofthetopoftheballooniMakingpreparations ★Youmusthavethenecessaryequipment设备suchasafiredistinguisher灭火器amapandsoon. ★Youshouldcheckthewindconditionstomakesureit'ssafetofly.Youmustknowwhentoflyorcanceltheflight. ★Youneedseveralfriendstohelpyoucontroltheballoon.Theycanhelpyoupulldownthebasketortietheballoontothegroundcaruntilyouarereadytofly. Flyingtheballoon ★Writedowntheheightandtheroute路线throughthewholeflight.Beforeyoulandpayattentiontothehighmountainstreestallbuildingsandsoon.Theymaybedangerous. ★Youarenevertoocareful.Keepcalmwhenyouhavetrouble.
OneChristmasCelinareceivedaspecialgift﹣ablueplasticpiece.Thereisgreenblueandfadedmica褪色的云母片init.Ithasthesame1asahandmirror.Itwassimilartoakindoffishwhichlooked2usefulnorbeautiful.Shethankedandforgotit. OnedayCelina3thediningroom.Whenshetookdowntheboxfromthebookcasethestrangegiftwasfound.Thistimeshenoticedahook钩atoneendandtherewereseveral4onthebottomoftheboxHangona5window. ThenCelinawenttothekitchenhungthisgiftonawindowwiththesunshinepouringinallday.To6surpriseamazingcolorfullightcameintothekitchen.Throughthelittlebluemicacolorsturned7greentodarkblueandthentopurple…justlikethefantasticseawaves.Shehad8thoughtsuchasmallstrangegiftcouldleadtoabeautifulseaworld.OnChristmasdayCelinadidn'tfindthatkindofbeauty.Butatthemomentsheunderstoodacommonthingwillbesobeautifulaslongasyoumakeuseofit9. Thegifthasbeenhungonthewindow.Everydayitremindsherthatsheshould10sometimefindingthebeautyhiddeninpeopleandgifts.it'sanimportantlessonforher.
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