Unit2. World News: Earth and Environment Contents:
Warming up
News report
City recycling
Goals:
To train students to recognize key words and phrases in listening
To develop students’ ability to identify significant information through listening
To activate students’ knowledge about environment
To cultivate students’ ability of summarizing
Teaching methods:
Students’ listening; group discussion; teacher’s instruction
Duration:
90 minutes
I.Warming up
A.
blaze (n. & v) [C] (a) bright flame or fire 火焰; 火光: Dry wood makes a good blaze. 乾木燃起夺目的火焰. (b) very large (often dangerous) fire 大火; 火灾: Five people died in the blaze. 有五人死於火灾.
Brazil ---- Rio de Janeiro（former capital of Brazil）
The new city,Brasilia, replaced Rio de Janeiro as the capital of Brazil in 1960. Desertification is the process by which a piece of land becomes dry, empty, and unsuitable for growing trees or crops on. (土壤)荒漠化, 沙漠化
----- A third of Africa is under threat of desertification.
everglade n. marshland, swamp
------- wetlands region in southern Florida大沼泽地
Greenland
n. self-governing island belonging to Denmark located between Iceland and the northeastern coastal islands of North America (largest island in the world)
Listen to some sentences about environment and supply the missing information. Check the answers after students’ discussion.
1.New research on the likely impact of climate change suggests that damage to
crops in low-lying coastal regions could be worse than previously thought.
2.More than 2000 delegates from around the world have gathered in northern
Brazil for the third United Nations Conference on Desertification.
3.Crews are working to clean up a huge oil spill off the coast of Mexico, about 50
miles south of San Diego. ----- a port city in California (USA)
4.Wildfires in the Florida Everglades have been contained after a nearly a week of
blazes that consumed 65,000 hectares in the southern part of the States.
5. A. US Space Agency study finds that Greenland is melting around the edges. The
loss to the world’s second largest ice sheet---more than 50 cubic kilometers per year---is enough to raise global sea level by millimeters.
B.
Aerial offensive
reptile
/ reptal; US -tl; ˋrptl/ n any of the class ofcold-blooded, egg-laying animals including lizards, tortoises, crocodiles, snakes, etc with relatively short legs or no legs at all 爬行动物（冷血, 卵生, 如蜥蜴﹑龟﹑鳄鱼﹑蛇等）; 爬虫.
‘salamander火蜥蜴
alligator短吻鳄
amphibian: 两栖动物
poppy:罂粟
herbicide: substance used to destroy weeds
directory: list of telephone subscribers, business firms, etc.
xeric adj. of a dry environment, suited for a dry environment
xeriscaping-----a landscaping method that employs drought-resistant plants in an effort to conserve resources, especially water.旱生园艺; 节水型花园----通过选择需水少的植物，进行环境美化
sawgrass ----A tall coastal or marshy sedge of eastern North America, Mexico, and the West Indies, having leaves with sharp, minutely toothed margins.
锯齿草:一种产于北美东部、西哥和西印度群岛高海岸或沼生的蓑衣草,叶片具有尖利的小齿边缘.
锯草球场----golf course
