环境可持续发展.pptVIP

Article 1 global environment and ecosystem CHEN Zhi-ying New words: atmosphere, atmo- 气，蒸汽 hydrosphere, hydro-前缀 pref. 1. 表示水的,氢的 pedosphere, 前缀 pref. 1. 表示儿童;幼;未成熟“;2. 表示土壤;足;脚;基 Geosphere 前缀 pref. 1. 表地球,土地‘ lithosphere, litho-前缀 pref. 1.表示石 biosphere, bio-前缀 pref. 1. 表示生命,生物( core, mantle, 地幔 Crust The earths crust is between 5 and 25 miles thick. 地壳有五至二十五英里厚。 Interior 内部的；内地的,内陆的 Minerals 矿石，矿物质 Magma 岩浆 ozone O3 Ultraviolet 紫外线辐射,紫外光  Chapter1 The Basic Feature of Global Environment 1.1 Earth‘s layers structure 1.1.1 earth 1.1.2 layers structure 1.2 The relationship between human and and earth layers 1.2.1 atmosphere 1.2.2 hydrosphere 1.2.3 pedosphere 1.2.4 lithosphere 1.2.5 biosphere 1.1 Earth‘s layers structure 1.1.1 what is earth Earth, our home planet, is a beautiful blue and white ball when seen from space. Earth, the largest and densest rocky planet, was formed about 4.5 billion years ago. The third planet from the Sun, it is the largest of the inner planets. Earth is the only planet known to support life and to have liquid water at the surface. The Earths interior is divided into four layers, which is typical of rocky planets. Each layer has different characteristics and is made of different elements and minerals. There are many different types of features on Earth’s surface due to the complexity of our planet. The surface is unique from the other planets because it is the only one which has liquid water in such large quantities. Interior layer 1. Inner Core solid iron and nickel can get hotter than the sun 750 miles thick 2. Outer Core liquid iron and nickel 1300 miles thick 3. Mantle - The Mush Zone 1800 miles thick magma is located here Temp. can reach 1800 degrees F Has characteristics of a solid but flows like a liquid 4. Crust Outermost layer - where we live Thickness depends on where you are Ocean Crust ?①?4- 7 miles thick at deepest points in the ocean ??②Young ro