棚房蔬菜种植建设可行性研究报告.doc

Englishman,WilliamLow.Hesuggestedthatadoublerailwaytunnelshouldbebuilt.Thiswouldsolvetheproblemofventilation,forifatrainenteredthistunnel,itwoulddrawinfreshairbehindit.Forty-twoyearslateratunnelwasactuallybegun.If,atthetime,theBritishhadnotfearedinvasion,itwouldhavebeencompleted.Recently,therehasagainbeengreatinterestintheideaofaChannelTunnel.Ifitisbuilt,itwillconnectBritaintoEuropeforthefirsttimeinhistory.Lesson65Jumboversusthepolice小象对警察LastChristmas,thecircusowner,JimmyGates,decidedtotakesomepresentstoachildren'shospital.DressedupasFatherChristmasandaccompaniedbya'guardofhonour'ofsixprettygirls,hesetoffdownthemainstreetofthecityridingababyelephantcalledJumbo.He,shouldhaveknownthatthepolicewouldneverallowthissortofthing.ApolicemanapproachedJimmyandtoldhimheoughttohavegonealongaside-streetasJumbowasholdingupthetraffic.ThoughJimmyagreedtogoatonce,Jumborefusedtomove.Fifteenpolicemenhadtopushveryhardtogethimoffthemainstreet.Thepolicehadadifficulttime,buttheyweremostamused.'Jumbomustweighafewtons,'saidapolicemanafterwards,'soitwasfortunatethatwedidn'thavetocarryhim.Ofcourse,weshouldarresthim,butashehasagoodrecord,weshalllethimoffthistime.'Lesson66Sweetashoney!像蜜一样甜！TheHatheldPuffinisamodernaero-plane,butitsdesigner,MrJohnWimpenny,isfindingitdifficulttogetitofftheground.Thereasonforthisisthatthisplaneisalsoabicycle.Itspilothastopedalhardtogetitintotheair.AfterMrWimpennyhadtheplanebuilt,itwastestedthoroughly.In1961,itwasthefirstman-poweredaircrafttoflyhalfamile.Whilebeingflownbyachampionamateurcyclistin1963,theplanecrashedonanairfield.Sincethen,MrWimpennyhashaditrebuilt.Hehashadthelengthofthewingsincreasedsothattheynowmeasure93feet--almostaslongasthoseofaDakota.Manypeoplehaveshowninterestinthisnewandunusualsport.Butthoughaircyclistsmaylearnhowtoflyovershortdistances,andmay,eventually,evengetacrosstheEnglishChannel,itisdoubtfulwhethertheywillevercycleacrosstheAtlantic.Lesson67Volcanoes火山HarounTazieffthePolishscientist,hasspenthislife-timestudyingactivevolcanoesanddeepcave