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选修8《Lesson 3 Natural Disasters》最新教案优质课下载
New vocabulary
Step 2: Task :
1. Learn more about Natural Disasters and their causes
There are many natural disasters, can you name some?
tsunami 海啸
typhoon 台风
volcanic eruption 火山喷发
flood 洪水
landslide 滑坡，山崩
hurricane 飓风, 狂风
2: Further Exploration
What do you think causes the disasters, people or nature?
3: Check the prediction
Read the article and check your answer .
What causes the disasters? (Both people and nature)
Step 3: Task :
Learn to use Reading Strategies: Completing texts with sentence gaps
Ex 3: Use the Strategies to complete the gaps in the text (1-5) with these sentences (a-g). There are two extra sentences you do not need .
But evidence shows that 73,000 years ago there was a much greater eruption.
b) Even Europe has suffered and large areas have been under water.
That is probably not the most important factor either .
Third , the other bits of land you might have been able to farm are now useless.
On top of that add global warming.
f) For example , the Yellow River, once famous for flooding, failed to reach the sea at all for 226 days in 1997.
g) One answer is overpopulation.