英语人教版九年级全册Unit13 3a-3c.ppt

1、,Unit 13 We are trying to save the earth.,(Section A 3a-3b),How do you feel about the song?,heal the earth,What are they? Where do they live?,shark /:k / n. 鲨鱼,fins / fInz / n. 鳍,They have lived in the ocean for over 400 million years, even older than the dinosaurs.(恐龙）,What happened to this shark?,

2、学习目标,1.掌握下列单词及短语 shark fin cruel harmful be harmful to chain at the top of the food chain ecosystem industry law scientific 2.通过整体感知课文，掌握相关环保的词汇及句型，并呼吁人们保护鲨鱼，关注生态平衡,迅速说出找出下列短语的意思,hear of shark fin soup cut off not only.but also. be harmful to at the top of in fact the number of,听说 鱼鳍汤 砍掉，砍断 不仅而且 对有害

3、 在顶部 实际上 的数量,bring danger to around the world be good for so far no longer ocean ecosystem the food chain,给带来危害 世界各地 对有好处 到目前为止 不在 海洋生态系统 食物链,课文展现,fast reading and scanning,reading task(阅读任务）,1.各小组认真读完课文。 2.通过快速阅读及细读整体感知课文后，回答下列问题。（答对的同学加组分，判断正误，错的要说出理由，加1-2分，简答题加2-3分）,Fast Reading,Save the sharks !

4、,Whats the main idea of the article? A. Some kinds of fish in the ocean B.The sharks are endangered in the world. C .The shark fin soup is famous and expensive,A:in great danger B:dangerous,Save the sharks !,Read and Match Para1. endangered sharks Para2. shark fin soup Para3. Help save the sharks!,S

5、kimming 略读,Read and tell T or F.,Para1.,Scanning 寻读,F,T,( )Shark fin soup is famous and expensive around the world. ( ) Youre killing a whole shark when you enjoy a bowl of shark fin soup.,=,shark fin soup,Shark fin soup is and . It is especially in China.,You are killing a each time you enjoy,=,whe

6、re?,result?,retell,but,famous,expensive,popular,Southern,whole shark,a bowl of shark fin soup,para1,Para2.,Scanning 寻读,3.Sharks can never be endangered because they are the strongest in the food chain.,True or false:,1. Why is the process (过程)cruel? 2. Why is it harmful to the environment?,Without a

7、 fin, a shark can no longer swim and slowly dies,Sharks are at the top of the food chain in the ocean ecosystem.If their numbers drop too low, it will bring danger to all ocean life.,sharks,planktons,浮游生物,因为我们生存所需的氧气的70%是海洋中的浮游生物提供的，鲨鱼一旦灭绝，没有了天敌的控制的其它海洋生物就会大量吞噬海洋浮游生物，造成地球的缺氧。海洋是地球上最重要的生态系统，起到调节气候和为其

8、它生物提供食物的作用，因此拯救鲨鱼其实就是在拯救人类自己。,If their numbers drop too low, it will bring danger to all ocean life.,at the top of the food chain in the oceans ecosystem,in fact,2.The numbers of some kinds of sharks have fallen by in the last 20 to 30 years.,1.Around sharks are caught and traded in this industry ev

9、ery year.,Para2.,Scanning 寻读,Sharks are endangered.,Scanning 寻读,Para2.,Scanning 寻读,70 million,over 90 percent,A:行业 B:数量,1.What are the names of the two environmental protection groups ?,Para3.,Scanning 寻读,2. Is shark fin soup good for health?why?,Para3.,Scanning 寻读,No,it isnt. Scientific studies hav

10、e shown that shark fins are good for health.,A: 科学的 B:理论的,=,or,3b,Read the passage again and fill in the blanks with the words in the box.,Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup. 2. Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger.,when,so,3. Many think that sharks are too strong to be endangered, _ they are wrong. 4. _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one da