1、Unit4Teaching period3TopicGlobal warmingstylereadingAims1.Learn and grasp the pronunciation of the words1. 2.Learn the usage of the words and the expressions.、课文填空 p26 the , environmental, which , is trapped , causing , like , by , that, it , compared ,The Earths surface temperature has risen by abo
2、ut one degree Fahrenheit today. There is no doubt 1 _ the earth is becoming warmer. But how has this come about and does it matter? People have fierce debates about whether 2_is human activity that has caused this global warming，3_ with most of the natural changes.Many scientists 4 _ Dr. Janice Fost
3、er believe that people have caused the increase in the earths temperature 5_ burning fossil fuels like coal，natural gas and oil to produce energy.Some byproducts of this process are called “greenhouse” gases，the most important one of 6 _ is carbon dioxide. The increased amount of carbon dioxide mean
4、s that more heat energy 7_ in the atmosphere 8_ the global temperature to go up.On 9 _ other hand，some scientists predict that any warming will be mild with few bad 10 _ consequences. Anyhow，even if we start reducing the amount of carbon dioxide and other greenhouse gases，the climate is going to kee
5、p on warming for decades or centuries.、完形填空This story is about two mice. They are good friends. One mouse _ in the country. The other lives in the city. After many years the country mouse sees the city mouse, he says, “Come and see me at my house in the country.” So the city mouse goes. The country
6、mouse _ him to his house in the field. He gives him his nicest food. But the city mouse says, “This food is no good, and your house is no good. Why do you _in a hole in the field? You must _ and live with me in the city.”So the country mouse _ to the house of the city mouse. It is a very good house.
7、 Nice food is ready for them to _. But just as they begin to _they hear a great noise. The city mouse cries, “Run! Run! The cat is coming!” The two friends _ away quickly and hide in a dark hole. After some time they come out. The country mouse says to the city mouse, I do not _ to live in the city. I like to live in my hole in the field. It is nicer to _ poor and happy than to be rich and live in fear.、 翻译下列单词和短语1.发生 造成_ 2. 同意，赞成 _ 3. 数量_ 4.大量的 _5. 趋势 照顾 _ 6. 上升，增长_7.导致_ 8.反抗，反对_ 9.陈述，说明_ 10.范围，种类_ 11.继续_ 12. 一憋，扫视_13平稳的，稳固的_ 14. 分布广泛的 _15.平均的_ 16. 忍受，容忍_ 17.只要_ 18. 环境_
