只用一本书提高英语听力能力!重温经典名著双语阅读小编推荐:跟着纪录片学英语不背单词和语法,轻松学英语
返回列表 回复 发帖

[探索发现] 【整理】2010-05-23 黄石公园-3

提高英语听力能力 找对方法很重要!

Hot rock below ground heat the water under pressure for around 90 minutes, suddenly some water spurts though a tiny 5 inch wide crack in the rocks . this causes a drop in the pressure with in the water chambers , in an instinct , thousands of gallons of water are turned to steam and blast up into the air .
When the pressure build up , steam up , steam bubbles start rising to the surface , the system depress and the follow eruption can occur , old faithful show that rocks blow the surface are very hot .scientist find dues to a violent path 34 miles south_east to a hot spring. On the shores of a circular lake called Indian palms . so field geologist , my job is to basically be eruptive , and so I tried to determine what their origin is and what the history is of that particular rock ,there we go .ok now , in this particular case , lets look at this .this rock when it we stared, it was just a losse sand , you can just put you finger though it .the solid bouder is from millions of individuals grains of sand . micrcosocptic analysis reveals the grians have been cemented together by chemicals and pressuer deep under the ground . but how did the rock get to the surface, morgen have a chemically date the rock  , soon discovered that 3300 years ago bounder was blasted out of the ground by the water explison of gigantic geyser. You will see bolling water , rock frangment and fine material been ejected up to the air as high as 3 to 5000 deet and then at some point material would start raining down from this explosion column . now you wouldt want to standing it to one of those. Indian palm is creator of the geyser left behind .
返回列表