【Iwonderifthereisanygirlorboywhodoesnotliketoseearainbow（彩虹）inthesky.Itissobeautiful.Thereisastorysayingthatwheneveryouseearainbowyoushouldrunatoncetotheplacewher】

　　Iwonderifthereisanygirlorboywhodoesnotliketoseearainbow（彩虹）inthesky.Itissobeautiful.

　　Thereisastorysayingthatwheneveryouseearainbowyoushouldrunatoncetotheplacewhereittouchesthegroundandthereyouwouldfindapotofgold.Ofcourseitisnottrue.Neitheryoucouldfindthepotofgoldnorcouldyoueverfinditsend.Nomatterhowfaryourunitalwaysseemsfaraway.

　　Arainbowisnotathingwhichwecanfeelwithourhandsaswecanfeelaflower.Itisonlytheeffect（结果）ofthelightshiningonrain-drops.Theraindropscatchthesunlightandbreakitupintoallthewonderfulcolourswhichwesee.

　　Itiscalledarainbowperhapsbecauseitismadeupofraindropsandlookslikeabow（弓）.

　　Thatiswhywecanneverseearainbowinaclearsky.Weseerain-bowonlywhenthereisrainintheairandthesunisshiningbrightlythroughtheclouds.Everyrainbowhasmanycoloursinthesameorder.Thefirstorthetopcolourisalwaysrednextcomesorangethengreenandlastofallblue.

　　Arainbowisindeedoneofthewondersofnature.

　　(1)Childrenlikerainbowsbecause

　　[]

　　A．theyarebeautiful

　　B．theyarelikebows

　　C．theycanfindapotofgoldattheendofarainbow

　　D．theyaregoodtocrop

　　(2)Wecannotfeel______withourhands.

　　[]

　　A．gold

　　B．aflower

　　C．arainbow

　　D．araindrop

　　(3)Wecanseearainbow______．

　　[]

　　A．whenitisrainingheavily

　　B．whenitissnowing

　　C．inaclearsky

　　D．