【阅读理解Asweallknowtheoceanmoves.Butwaves(波浪)breakingonthebeachmaketheoceanfun.Whenyoustandontheshore(海岸)andlookatthewavesitseemslikethewaterisrolling(】
阅读理解
Asweallknowtheoceanmoves.Butwaves(波浪)breakingonthebeachmaketheoceanfun.Whenyoustandontheshore(海岸)andlookatthewavesitseemslikethewaterisrolling(翻滚)intowardyou.Butthewaterisnotreallymovingforward.Whatyouseemovingiswaveenergy.Andwaveenergycomesfromthewind.
Let’sthinkabouthowthisworks.Aswaveenergypassesthroughthewatertheenergymakesparticles(粒子)ofwatermoveupanddown.Justgiveyouanexampleofawavepassingunderabasketball.Weputabasketballonthesea.Whenthewindblowsawavecomesfrombehindthebasketball.Thebasketballmovesuptothetopwiththewave.Thenthewavecontinuesandleavesthebasketballbehind.Thebasketballlookslowerbutitdoesn’tmoveforward.That’sbecausethewaveenergymovesthewaterthatisunderthebasketballupanddownasitpasses.
Sowhycanyouseeawaveknockyoudownontheshore?Whenawavemovestowardtheshorethebottom(底部)ofthewaveslowsdownbecauseitmeetstheoceanfloor.Butthetopwhichiscalledcrestkeepsmoving.Thedifferentactioncausesthewavetofalloverorbreakontotheshore.Ifawaveisverylargeitcarriesalotofenergywhenithitstheland.Astimegoesbywavescanbreakupandcarryawaytherocksandotherthingsontheshore.Shorelinesarechangingallthetimebecauseofwaveaction.
根据短文内容选择最佳答案。
(1)
________isreallymovingforwardwhenyoulookatthewaves.
[]A.
Water
B.
Waveenergy
C.
Waterandwaveenergy
(2)
Match(与……相匹配)thesentenceswiththepicturesandchoosetherightanswer.
(1)Thebasketballmovesuptothetopwiththewave.
(2)Thewavecontinuesandleavesthebasketballbehind.
(3)Whenthewindblowsawavec