Unit 3: Ships in the Dert
证券是什么by Al Gor
I . Additional Background Knowledge
1. Al Gore the author
2. Clean Air Act
3. The Aral Sea
II . Introduction to the Passage
1. Type of literature: a piece of exposition
合成高分子材料
2. The purpo of a piece of exposition:
--- to inform or explain
3. Ways of developing the thesis of a piece of exposition:
--- comparison, contrast, analogy, identification, illustration, analysis, definition, etc.恍惚意思
4. The central thought or thesis
III . Effective Writing Skills
1. making effective u of specific verbs
2. discussing the solution to environmental problems from a politician’s point of view, that is, relating the solution to environmental destruction to the solution to arm races
IV . Rhetorical Devices
1. understatement
2. metaphor
V . Special Difficulties
1. analyzing the structure of some long and complicated ntences
2. understanding the scientific matters connected with ecological environment
3. translating long and complicated ntences
4. mastering the rules of word formation
VI . Questions
1. How has human civilization now become the dominant cau of change in the global environment? 破绽是什么意思
胡桃夹子与四个王国2. What changes in the global environment prent a strategic threat to human civilization? How should we face this challenge and solve the problem? 企鹅有羽毛吗
solutions does the writer put forward to our ecological problems?
Detailed Teaching Notes:
Background knowledge
About the author:
Al Gore was born in 1948 in Washington ., . He has been a Senator (1984-1992) reprenting the State of Tenne, and . Vice-President (1992-2000) under President Bill Clinton. He ran for the Presidency against George W. Bush Jr. but the latter won the cloly tied election and has become the 43rd American President. The text is taken from Al Gore’s book Earth in the Balance.
The Aral Sea:
The Aral Sea, located in Uzbekistan and Kazakhstan (both countries were part of the former Soviet Union), is historically a saline lake. It is in the centre of a large, flat dert basin. The Aral Sea is a prime example of a dynamic environment. In 1960 it was the world’s fourth largest lake, the size of the entirety of Southern California (at 26,250 square miles, approximately two hundred times larger than the Salton Sea).
America’s Great Lakes:
无花果味道
America’s Great Lakes refer to the group of five freshwater lakes, central North America, between the United States and Canada, largest body of fresh water in the world. From west to east, they are Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario. HOMES can help remember the names of the five lakes. H stands for Huron, O for Ontario, M for Michigan, E for Erie and S for Superior.
Lake Superior:感知世界
Lake Superior is one of the cleanest lakes in the world becau of its temperature, size, and the lack of people living around it. Lake Superior, with a surface area of 31,700 square miles, is the largest freshwater lake in the world by surface area. This one body of water contains 10% of all the freshwater in all the lakes and rivers in the world. The amount of time needed for the water in Lake Superior to be completely replaced is 191 years. The lake is known for its cold temperatures. Almost all of Lake Superior’s water stays at 39 degrees Fahrenheit (4 degrees Celsius) all year. Lake Superior is often referred to as “crystal clear,” with visibility of 50 feet or more.
Antarctica:
Antarctica is icy cold. Transantarctic Mountains divide it into the East Antarctic and West Antarctic subcontinents. China has t up two scientific rearch stations there: Zhongshan Station in the East and Great Wall in the West.
