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北师大2003课标版《Lesson 1 A Material World》最新PPT课件优质课下载
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soil erosion
Yellow River
What can people do to help stop soil erosion?
plant trees
green future
main idea of each paragraph
e. The removal of sand is the main cause of Yellow River erosion.
d. It is a massive job to control Yellow River erosion.
c. Everybody plays an important role in stopping Yellow River erosion.
b.You can use 5 yuan to buy a tree and create a green future.
Listening
Para5
Para3
Para2
Para4
a. What can you do with 5 yuan?
Para1
1.The sand contains materials to keep the ecological balance of the area stable.
2. Every year, about 1.6 billion tons of sand flows into the Long River.
3. Planting trees can stop the air pollution.
4. Five yuan can help to develop a local economy.
5. The success of the tree-planting programme in Fugu County has greatly improved the lives of the local people.