unit2Warmingup高二英语课件
日期：2010-08-20 08:49
000km557millionkm，90155kmC15，385，000kmThelongestdistancearoundtheworldisalongtheequator1mile=16kilometers8Howhigharethetemperaturesnearthecentreoftheearth?Theoutercore:about4000-5000℃Theinnercore:about5000-6000℃Theearthhasthreemainlevels??CRUST?MANTLE?CORE7Howfarisittothecentreoftheearth?About6，Whatisfact?FactisathingthathashappenedortobetrueortoexistAthingthatisbelievedorclaimedtobetrue884443m2Howhighisit?1Whatisthehighestmountainintheworld?3Whatisthehighestplateauonearth?4Whatisthedeepestpointintheocean?Whereisit?InthewestofthePacific5Whichisthelongestriveronearthandhowlongisit?ATheYangtzeRiverBTheNileRiverCTheAmazonRiver6Whatisthelongestdistancearoundtheworld?A40，07516kmB24，360km9Whatisthedistancefromtheearthtothemoon?WhatisittoMars?Whatisittotheneareststar?557millionkm150millionkm385，000km，150millionkm10Howfastdoesaballoontravel?Howaboutanaeropl，
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