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1Unit2TheGrandCanyonwasnotjustbig.1.我们给《世界奇观》节目打电话，加入讨论吧。Let’scallWondersoftheWorldandjoininthediscussion.2.我认为巨人之路是最神奇的自然奇观。AndIthinktheGiant’sCausewayisthemostfantasticnaturalwonder.4.但是,在我看来,人造奇观比自然奇观更激动人心。Butinmyopinion,man-madewondersaremoreexcitingthannaturalones.ancientcivilization5.古代文明3.它（巨人之路）很神奇，但我认为非洲维多利亚瀑布更壮观。Thatsoundsgreat,thoughIthinktheVictoriaFallsinAfricaisevenmorefantastic.Newwordsskysignshinebelow天；天空n./skai//saɪn/迹象；标志n.(shone/ʃɔn/,shone;shined,shined)照耀v./ʃaɪn//bɪləʊ/在…下面；在…以下prep.silver银灰色的，银制的adj./'sɪlvə/silent寂静的adj./'saɪlənt/gothroughstream穿过小河，小溪n./stri:m/fallaway突然向下倾斜beside在…旁边；在…附近prep./bɪ'saɪd/reply回答，回复v./rɪ'plai/clear(烟雾等)开始消失v./klɪə/grey灰色的;(天气）阴沉的adj./grei/canyon峡谷n./'kænjən/逗留；留下v.remain/rɪ'meɪn/nearly几乎；差不多adv./'nɪəlɪ/onthetopof在…上面；盖住by在…旁边；靠近prep./baɪ/shine照耀sign标志,迹象silent安静的silver银色的sky天空grey灰色的;(天气）阴沉的clear(烟雾等)开始消失fallaway突然向下倾斜stream小河，小溪canyon峡谷TheSevenWondersofTheNaturalWorld美国科罗拉多大峡谷Colorado,theGrandCanyon南非赞比西河，维多利亚瀑布VictoriaFalls,ZambeziAlaskaGlacierGulfNationalPark美国阿拉斯加冰河湾国家公园Everest/QomolangmaMount中国珠穆朗玛峰MammothCaveNationalPark美国肯塔基州猛玛洞穴国家公园RussianBaikalLake俄罗斯贝加尔湖美国黄石公园AmericanYellowstoneNationalPark1.Workinpairs.Talkaboutagreatnaturalwonderyouknow.Usethewordsintheboxtohelpyou.below,deep,fantastic,high,long,natural,shine,sign,silent,silver2.Readthepassageandcompletethetable.AgreatwonderofthenaturalworldWhenIarrived,itwasearlymorninganditwasraining.Ilookedtotheeast–theskywasbecominggrey.Igotoutofthecar,wentthroughagateandwalkedalongadarkpath.Therewasnothingtosee,butIknewitwasthere.Afteraboutamile,astrangerappearedbesidethepath.“AmIgoingtherightway?”Iasked.HeknewwhereIwasgoing.“Yes,”hereplied,“you’llgetthereinfiveminutes.”Finally,Icametosomerocksandstopped.Ilookedoverthem,butitwassilentandtherewasnosignofit.Suddenly,therainstoppedandthecloudscleared.Thesunrosebehindmeandshoneontherocks.Farbelowme,thegroundfellawayanddowntoariver.Iwaslookingacrossoneofthewondersofthenaturalworld-theGrandCanyon.IlookeddowntotheColoradoRiver,asilverstreamnearlyonemilebelowme.Ifyouputthetwotallestbuildingsintheworldontopofeachotheratthebottomofthecanyon,theystillwouldnotreachthetop.ThenIlookedacrosstotheothersideofthecanyon.Itwasaboutfifteenmilesaway,maybemore.Finally,Ilookedtomyleftandtomyright,andonbothsidesthecanyonwentfarawayformorethan200miles.TheGrandCanyonwasnotjustbig.Itwashuge!Iremainedbythecanyonforabouthalfanhour,andIaskedmyself,“IstheGrandCanyonthegreatestwonderofthenaturalworld?”Icertainlyknowtheanswer.Whatdoyouthink?TheGrandCanyonHowdeepHowwideHowlongnearlyonemileaboutfifteenmilesmorethan200miles1.Igotoutofthecar,wentthroughagateandwalkedalongapath.★getoutof…从……内出来;逃避;摆脱Weonlywanttogetoutofthisdarkroomassoonaspossible.我们只想尽快离开这个暗室。getin进入getto到达geton上（车等）getoff下（车等）2.Afteraboutakilometre,astrangerappearedinfrontofme.appearvi.出现Arainbowappearedaftertherain.雨后空中出现了一道彩虹。disappearvi.消失Thesundisappearedbehindthecloud.太阳在云层后面消失了。3.“Yes,”hereplied,“you’llgetthereinfiveminutes.replyv.回答replytosb/sth回答某人/某事1).Whocanreplytomyquestion?谁能回答我的问题？2).Whydon’tyoureplytome?你为什么不回答我呀？★reply+that从句回答到……IrepliedthatIwasunabletohelpthem.我回答说我帮不到他们的忙。辨析：reply与answer(1).两者均表示“回答”，一般情况下可以换用。answer用作及物动词和不及物动词均可。reply除后接that从句或引出直接引语是及物动词外，一般只用作不及物动词，其后若接名词或代词作宾语，应借助介词to。Hedidn’treplyto/answermyquestion.他没有回答我的问题。Herepliedthathehadchangedhismind.他回答说他改变了主思。比较下面两句：Hedidnotknowwhattoreply.他不知道回答什么。（即:用什么回答）Hedidnotknowwhattoreplyto.他不知道回答什么冋题。（即:对什么作回答）2).answer除表示“回答”外，还可表示接听（电话）或对门铃等声响作出反应等（常与telephone，door,bell,doorbell等连用），但reply不能这样用。Whoansweredthetelephone?谁接的电话？3).两者除用作动词外，都可用作名词。表示“对……的回答（答复、答案）”等，其后均接介词to(不用of)。Haveyouhadananswertoyourletter?你寄出的信有回音了吗？Ireceivednoreplytomyquestion.我的要求没有收到任何的回复4.Ilookedcarefullyoverthem,butitwassilentandtherewasnosignofit.★lookover从……上面看过去Shelookedoverthetopofthemountain,andsawrocksindifferentshapes.从山顶上看过去，她看见了形状各异的岩石。拓展：lookover检查Canyoulookovermycompositionforme?你能帮我检查一下我的作文吗？IlookeddowntotheColoradoRiver...我俯瞰科罗拉多河……Finally,Ilookedtomyleftandtomyright...最后，我向左右遥望……★lookover从……上面看过去Shelookedoverthetopofthemountain,andsawrocksindifferentshapes.从山顶上看过去，她看见了形状各异的岩石。补充：lookover检查5.IlookeddowntotheColoradoRiverabout2,000metresbelowme.★lookdown从……往下看；俯视6.ThenIlookedacrosstoothersideofthecanyon.★lookacross向对面看Heoftenlooksacrosstothemountainsinclass.他上课经常看对面的山。siden.边，面，侧ontheleft/rightof…/onone’sleft/right7.Finally,Ilookedtomyleftandtomyright,andonbothsidesthecanyonwentfarawayformorethan200miles.★lookto…向……(某个方向)看Looktotheleftandtotherightbeforecrossingthestreet.过马路要左右看。look短语小聚lookup向上看；查阅（字典等）looktoone’sleft/right向……左右看lookdown向下看；瞧不起lookacross向……对面看lookfor寻找lookafter照顾lookover从……上方看过去8.Suddenly,therainstoppedandthecloudscleared.clearv.①(云或雾)散开②打扫干净1).Thefogclearedandwesawthewholetowerintheend.雾散了，我们终于看见整个塔了。2).IhavetoclearthesnowinfrontofthedoorbeforeIgoout.我出门前得把门前的雪打扫干净。clearadj.清晰的Weshouldkeepclearminds.我们必须保持清晰的头脑。9.Thesunrosebehindmeandshoneontherocks.(1).risev.升起rise–rose–risenEveryoneknowsthatthesunrisesfromtheeast.人人都知道太阳从东边升起。Theriverrosetw