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1、Module2MakingdiscoveriesTalesoftheunexplainedUnit1Themostbeautifulthingonecanexperienceismysteries.Theyaretrulythebasisofallartsandsciences.AlbertEinsteinHerearesomepicturesonthescreen.Canyoutellmewhattheyare?UFOs:unidentifiedflyingobjectsThechancesforseeingaUFO
2、aregreaterforthosepeoplewholiveinsmalltownsorinthecountryandareoutsidelateatnight.UFOscomeinallshapesandsizes.Someareonlysmallspotsoflightthatmoveinstrangepatternsacrossthenightsky.Somecanbeseeninthedaytimeareoftendisk-orsaucer-shaped.2001年12月26日傍晚5时04分杭州2005年1月
3、5日清晨7点30分北京2005年11月5日在永康大寒山Doyouthinksuchkindofthingsmysterious?Areyoucuriousaboutthem?BesidesUFOs,canyoulistanythingmoreunexplainedyou’veeverheardorseeninyourdailylife?Haveyouheardstoriesaboutthesethings?HimalayasthehighestmountainrangeintheworldYetiAbominableS
4、nowmanHalf-manandhalf-beastLochNessthelargestofaseriesofinterlinkedlochs,orlakes,locatedinnorthernoneofScotland’stoptouristattractions.LockNessMonsterStonehengeprehistoricmonumentonSalisburyPlain,southernEngland,consistingoftwoconcentriccirclesoflargestandingsto
5、nes. Itwasbuiltbetween2800and1500BCandisthoughttohavebeenanastronomicalcalendaroratempletothesun.TheSphinxHalfhuman,halflion,theSphinxis240feetlongand66feethighPyramids,EgyptHowWideThebaseoftheGreatPyramidisasquarewitheachsidemeasuring230m(756ft)andcoveringanare
6、aof5.3hectares(13acres). Howmuchisthat?Imagineafootballfield.Nearly10footballfieldscouldfitwithinthebase.TheareaofthebaseisalsoequaltoaboutsevencityblocksinNewYorkCity.Ifyouweretowalkaroundthebase,abouthowfarwouldyouwalk?500m(1,640ft)1850m(6,069ft)920m(3,018ft)
7、HowTallAt146.5m(481ft)high,theGreatPyramidstoodasthetalleststructureintheworldformorethan4,000years.Todayitstandsat137m(449.5ft)high,havinglost9.5m(31ft)fromthetop.HowHeavy?Morethan2,300,000limestoneandgraniteblockswerepushed,pulled,anddraggedintoplaceontheGreat
8、Pyramid.Theaverageweightofablockisabout2.3metrictons(2.5tons). Howmuchisthat?Well,youcanthinkofitintermsofrefrigerators.Anaveragerefrigeratorweighsabout91kg.If1metric
