SectionA2a—2d (2)

1、Unit 13 Were trying to save the earth. Section A 3a3b,1. 骑自行车有其它的优点。 2. 它不用花钱。,There are other advantages of bike riding.,It doesnt cost anything.,Revision,3. 我买外卖食品从来不拿木筷子和塑料叉子。 4. 我们的行动能起作用并且创造一个更加美 好的未来。,I never take wooden chopsticks or plastic forks when I buy takeaway food.,Our actions can mak

2、e a difference and lead to a better future.,The earth is badly polluted.,air pollution,The factories that burn coal pollute the air with a lot of black smoke.,Factories put waste into the river.,water pollution,noise pollution,There are more cars on the road these days.,People throw away things ever

3、y day .,waste pollution,Some animals are endangered.,leading-in,Save the animals!,学习重点： 通过学习3a部分的文章，了解珍稀动物的生存现状，树立保护濒危动植物的意识。,学习目标： 1.学习并掌握新词汇： shark, fin, cruel, harmful, chain, ecosystem, industry, law, scientific 2.学会并正确使用以下常用表达： be harmful to, at the top of,presentation,1. Have you ever seen a s

4、hark（鲨鱼）? 2. What do you know about sharks?,Discuss with your partner:,Many people think that sharks are too strong to be endangered, but they are wrong.,the oceans ecosystem 生态系统,the food chain 食物链,at the top of. 在.的顶端,at the bottom of.,The sharks are endangered!,People kill sharks for their fins.,

5、Read the passage quickly,Para.1 A. Two groups against “finning”. Para.2 B. Something about shark fin soup. Para.3 C. Sharks are endangered now.,鳍,猎翅行为,濒临灭绝的,shark fin soup,1. Where is shark fin soup popular?,2. What does it mean when people enjoy a bowl of shark fin soup?,Read Para. 1,In southern Ch

6、ina,Theyre killing a whole shark when they enjoy a bowl of shark fin soup.,Read Para. 2,1. How do people deal with them when they catch the sharks?,2. Without a fin, what will happen to a shark?,They cut off their fins and throw them back into the ocean.,It will die.,3.Why is it harmful to the envir

7、onment?,4. What do the two numbers mean?,around 70 million,over 90 percent,Sharks are at the top of the food chain, so if their numbers drop too low, it will bring danger to all ocean life.,Around 70 million sharks are caught and traded every year.,The numbers of some kinds of sharks have fallen by

8、Over 90 percent in the past 20 to 30 years.,Read Para. 3,2. What are they doing 用最高最大的(速度, 声音等),e.g. Listen!Jason is singing at the top of his voice.,in southern China,around 70 million,develop laws to stop the sale of shark fins.,WildAid and the WWF,3a,Read the passage about sharks and complete the

9、 fact sheet below.,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 day _ we do not do something to stop the sale of shark fins