Greenisanimportantcolorinnature．Itisthecolorofgrassandtheleavesontrees．Itisalsothecolorofmostgrowingplants．Sometimes，theword“green”meansyoung，freshandgrowing．Forexample，agreenbornissomeonewhohasn

　　Greenisanimportantcolorinnature．Itisthecolorofgrassandtheleavesontrees．Itisalsothecolorofmostgrowingplants．

　　Sometimes，theword“green”meansyoung，freshandgrowing．Forexample，agreenbornissomeonewhohasnoexperience．Inthe15thcentury，agreenbornwasayoungcoworanoxwhoseborns（角）hadnotyetdeveloped．Acenturylater，agreenbornwasasoldierwhohadnoexpericnceinwar．Bythe18thcentury，agreenbornhadthemeaningithastoday-apersonwhoisnewinajob．

　　Someonewhoisgoodatgrowingplantsissaidtohaveagreenthumb（大拇指）．Theexpressioncomesfromtheearly20thcentury．Apersonwithagreenthumbcanmakeplantsgrowquicklyandwell．TheGreenRevolution（绿色革命）isthenamegivensomeyearsagotothedevelopmentofnewkindsofriceandothergrains．Itwastheresultofhardworkbyagriculturalscientistswhohadgreenthumbs．

　　Greenisalsothecolorusedtodescribethepowerfulfeeling．Jealousy（嫉妒）．Thegreeneyedmonsterisnotadangerousanimalfromouterspace．Itisanexpressionusedabout400yearsagobytheBritishwriterWilliamShakespeareinhisplay“Othello”．Itdescribestheunpleasantfeelingwhensomeonehassomethinghewants．

　　Inmostplacesintheworld，agreenlightisasignal（信号）tomoveahead．Ineverydayspeech，agreenlightmeansapproval（赞成）tocontinuewithaproject．

　　51．Anewsoliderwascalledagreenborninthe___century．

　　A.15th B.16th C.18th D.20th

　　52．Apersonwithagreenthumb___．

　　A．isgoodatgrowingplants

　　B．reallyhasagreenthumb

　　C．hasnoexperienceinwar

　　D．isnewinajob

　　53．Amanmaymeetthegreeneyedmonsterif___．

　　A．heseesadangerousanimal

　　B．hecan’tgetsomething

　　C．hereadsasadplay

　　D．hisfriendgetsaprizethathewants

　　54．Thispassagedoesn’tmentionthehistoryoftheexpression“___”．

　　A．agreen

　　B．agreenborn

　　C．thegreeneyedmonster

　　D．agreenlight

　　55．Whichwouldbethebesttitleofthepassage？___

　　A．Green，thecolorofgrassandtrees

　　B．Thestoriesaboutthecolor“green”

　　C．Green，asignofapproval

　　D．Differentmeaningsof“green”