2017-2018学年高中英语 unit 5 the power of nature课时作业 新人教版选修6

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1、Unit5　Thepowerofnature【导语】基拉韦厄火山是世界上最大的活火山体，位于美国夏威夷岛东南部。这座活动力旺盛的活火山，至今仍经常喷发。MountKilaueaMountKilauea,theworld'smostactivevolcano,isontheislandofHawaii.ItisnotfarfromManuaLoa,thelargestvolcanointheworld.MaunaLoaandMountKilaueatogetherformtheVolcanoesNationalParkinHawaii.MountKilauea

2、hasproducedlavamorethanfiftytimesinthelastonehundredyears.Sometimesthelavamovesslowly.Atothertimesitpoursoutveryfastasahugeamountofpressureforcesitfromthevolcano.Duringthesetimes,itmovesalmostasquicklyaswatermovingdownthesideofmountain.SometimesMountKilaueaproducesalargeamountoflav

3、athatseemslikeriversoffire.WhenthelavafromMountKilaueareachestheocean,itsfierceheatproducesagreatamountofsteamthatrisesintotheair.Thelavaissohotthatitcontinuestoburnunderwaterforsometime.ThelavafromMountKilaueacontinuestoaddlandtotheislandasthevolcanoesofHawaiihavealwaysdone.Itwast

4、hesevolcanoesthatformedtheislandsofHawaii.MostofthetimethelavaofMountKilaueaseemstomovepeacefullytowardtheocean.Yetitisnotaspeacefulasitseemsfromadistance.Inrecentyearsthelavadestroyedonesmalltownontheisland.Theboilingrockslowlycoveredthetown.Itblockedroadsanddestroyedthem.Nothingc

5、anstopthelavaofMountKilauea.ExpertssaythevolcanoesofMaunaLoaandMountKilaueaareaseriousthreattopropertyonmanypartsoftheisland.TheyalsosaythevolcanoesoftheislandofHawaiiareproofthatthechangingenvironmentoftheearthisandwillalwaysremainbeyondhumancontrol.【词海拾贝】1．volcanon．火山2．pressuren．

6、压力3．rockn．岩石4．propertyn．财产5．proofn．证实；证据【问题思考】1．Doyouthinksomeoflavawillkeepburningforawhileafteritflowsintotheocean?Why?______________________________________________________________________________________________________________答案：Yes，itis.Becauseitismuchtoohot.2．Whatcanweinferf

7、romthelastparagraph?_______________________________________________________答案：ThevolcanoesofMountKilaueawillgooneruptingandthreatentheisland.Ⅰ.将单词与其正确释义连线1．diagram　　　　　　A．欣赏；感激2．hurricaneB．绝对的；完全的3．absoluteC．候选人；候补者4．candidateD．贵重的；珍贵的5．preciousE．文件；证件6．documentF．阳台7．balconyG．多种多样的

8、8．trembleH．图表9．diverseI．飓风