Unit 13 We are trying to save the earth.(Section A 3a-3b)PPT课件.ppt

1、Unit 13 Were trying to save the earth!,Section A 3a-3b,Air pollution,Water pollution,Land pollution,Waste pollution,Noise pollution,Not only is the earth polluted, but also some animals are endangered.,Shark 鲨鱼,1. Have you ever seen a shark（鲨鱼）?2. What do you know about sharks?,Discuss with your par

2、tner:,The shark fin soup,1800.00RMB each bowl,It comes.,Read the first paragraph and judge the sentences,1. Shark fin（鱼鳍）soup is famous and expensive all around the world.,2. If we get a bowl of shark fin soup, We will kill a whole shark .,Read the second paragraph,1. People cut off sharks fins and

3、throw the sharks back into the ocean.,2. Sharks are in the bottom of the food chain in the oceans ecosystem.,n. 生态系统,食物链,Read the second paragraph againand answer the following questions.,1. What do people do when they catch a shark?,2. What will happen to a shark if it doesnt have a fin?,Without a

4、fin, a shark no longer swim and slowly dies.,They cut off their fins and throw the sharks back into the ocean.,3. If sharks number drop too low, what will it bring？,4.How many sharks are caught and tradedevery year?,5.How are the numbers of some kinds of sharks?,It will bring danger to all ocean lif

5、e,Around 70 million .,They have fallen by over 90 percent in the last 20 to 30 years.,The shark is being killed.,The man is cutting the fin off.,Sharks are in danger.,“Help me ,save me please救救我吧,What should we do?,Yao Ming ,the Chinese basketball star , are calling on us to protect sharks. As what

6、he said in the Ad，when the buying stops, the killing can too.,Read the third paragraph,1. WildAid and the WWF are environmental protection groups in China.,2. Shark fins are good for health.,Save the earth!Save the animals!,保护环境，人人有责Everyone should play a part in environmental protection.,In souther

7、n China,Around 70 million,By developing laws to stop the sale of shark fins,WildAid and the WWF,3a,Read the passage about sharks and complete the fact sheet below.,1. A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。,no longer意思是“不再” e.g. Im no longer a student. 我不再是个学生了。,有两个短语和no longer同义，

8、即notany longer和notany more，但他们侧重的方面不同。,Language points,no longer和notany longer侧重时间。 e.g. He no longer lives here. = He doesnt live here any longer. 他不在这儿居住了。(一个时间以前他住 在这儿，过了这个时间，他就离开了。) notany more侧重程度和数量e.g. You can drink no more. = You cant drink any more. 你不能再喝了。(喝酒的量到了一定程 度，不能再继续下去了。),2. This is

9、 not only cruel, but also harmful to the environment. 这不但残忍而且对环境有害。,not onlybut also用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅而且”; 其中的also有时可以省略。,e.g. She not only plays well, but also writes music. 她不但很会演奏，而且还会作曲。 Not only men but also women were chosen. 不仅仅是男的，女的也有被选中的。,若连接两个成分作主语，其谓语通常与靠近的主语保持一致。e.g. Not only

10、 you but also he has to leave. 不只是你，他也得离开。,not only放在句首，后接句子时要用倒装结构。 e.g. Not only had the poor man been fined, but also he had been sent to prison. 这个可怜的人不仅被罚款，而且还被 送进了监狱。,be harmful to 对有害e.g. Smoking is harmful to the health. 吸烟有害健康。 Playing computer games much is harmful to students. 电脑游戏玩太多对学生有

11、害。,3. Sharks are at the top of the food chain in the oceans ecosystem. 鲨鱼位于海洋生物系统食物链的顶部。,at the top of 在最高地位; 用最高最大的(速度, 声音等) e.g. I looked at the top of his head, his hair shiny and parted smoothly. 我看他的头顶, 头发闪亮且平滑的分 开。,4. If their numbers drop too low, it will bring danger to all ocean life. 如果它们的

12、数目降至过低，会给所有 海洋生物带来危险。 此句复数形式的numbers表达全海洋中鲨 鱼的总量。当表示数值的高或低时，number要用high或low修饰。,e.g. In that country, the number of children going to school is higher in cities than in towns and village. 在那个国家，城市儿童入学人数比乡镇 及农村要高。常与number搭配的动词有grow, fall等。e.g. The number of families that own cars has been growing qui

13、ckly recently. 近来拥有轿车的家庭数量增长很快。,5. Environment protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. 世界各地的环境保护组织，如野生救援协 会和世界自然基金会，都在教育公众有关 “猎翅”的行为。1) 句中fin本为名词，指 “鱼鳍”。此句中的 finning由动词化的fin（割鲨鱼鳍以获取 鱼翅）的-ing形式转化而成，指课文中所 陈述的 “猎翅”这一行为。,WildAid（美国野生救援协会）

14、是保护野生动物及栖息地环境的一个非盈利性的机构，1999年注册成立，其宗旨是保护及救助世界范围内的野生动物WWF（世界自然基金会）英文全称为World Wide Fund for Nature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。,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 fi

15、n 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 go

16、od for health.5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins.,but,Although,if,adj. 科学上的，科学的,Homework,鱼翅汤在中国的南部很受欢迎，猎翅(finning)行为也异常猖狂。通过今天的学习，你想对那里的人说什么？ 向他们写一篇关于保护鲨鱼的倡议书。(What do you want to say to the people in southern China? Write a letter of saving shark

17、s to them.)提示animals , friends, finning, cruel, harmful without, no longer, at the top of, if numbers , drop low, bring danger, no scientific studies, are good for, why, help save,U盘、电脑坏了？教学资料不见了？以前的资料没保存？每一届重复劳动？找不到精品课件、试题、教案反思？各大文库价格昂贵？来【163文库】吧，你可以：上传分享资料赚取零用钱；创建教学空间，分类收藏存储资料；方便下届使用；百万教学资源供你下载；【平台地址：】,