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教学过程：
【导入】通过“菲律宾捕鲨鱼”视频，来导读激趣
通过一则“菲律宾居民捕鲨鱼“的视频，学习新词 cruel， endangered，同时激发学生学习兴趣，把学生引入本课的主题--save the earth.
【讲授】自读明大意
我设置了一个概括主旨大意题：
1.Fill in blanks.
Paragragh 1 Talk about ________________
Paragagh 2 Sharks are ______________ now
Paragragh3 __________ people to protect sharks .
让学生通过跳读的方式，分析文章每段的首句和尾句来概括段落大意。
【活动】细读抓关键
仔细阅读文章，回答下列问题。
How many sharksare caught and traded every year？
How much the numbers of some kinds of sharks have fallen in the last 20 to 30 years？
What are two environmental groups against “ finning”？
让学生仔细阅读文章，查找细节，分析句子
【活动】深读揣意图
3. Choose the best answer.
(1) What does the underlined(划线) word “chain” mean? ( A )
A.链 B. 束缚 C.枷锁
(2) What does the underlined(划线) word “this” refer to(指代)? ( C )
A. Catch sharks B. A shark can’t swim any longer without fins.
C. Cut off sharks’ fins and throw back into the ocean.
(3) From the passage ,we know_______( A )
A. If the numbers of sharks drop too low, all ocean life will be in danger.
B. The governments have developed laws to stop the sale of shark fins.
C. Because sharks are the strongest in their food chain,shark can never be endangered.
(4) What is the purpose of the passage? ( C )
A.Introduce the famous and expensive dish –shark fin soup.
B. Tell us a fact : sharks are endangered.The number of sharks have fallen quickly.