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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 13,Unit 13,Were trying to save the earth!,Section A 2,3a-3b,Revision,Jason and Susan, what are your ideas for solving these problems?,Role-play 2d.,Well, to cut down air pollution, we should take the bus or subway instead of driving.,Yeah, or ride a bike.,There are other advantages of bike riding. Its good for health and it doesnt cost anything.,Great ideas! What about waste pollution?,Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.,Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home.,And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.,So together, our actions can make a difference and lead to a better future!,Translate these sentences into English.,1.,甚至是河底都满是垃圾。,2.,这个镇上的每个人都应该参与清扫。,Even the bottom of the river was full of rubbish.,Everyone in this town should play a part in cleaning it up.,3.,骑自行车有其它的优点。,4.,我买外卖食品从来不拿木筷子和塑料叉,子。,There are other advantages of bike riding.,I never take wooden chopsticks or plastic,forks when I buy takeaway food.,The earth is badly polluted.,What should we do to save the earth?,Warming up,Lets,take action,(,采取行动,),Turn off the lights,when you leave a room.,Recycle books and paper.,Take buses instead of driving cars.,There are some animals are endangered. We should do something to protect the animals and the environment!,Save the earth!,Save the animals!,The zoos provide homes for many,endangered animals.,1. Have you ever seen,a,shark,（鲨鱼）,?,2. What do you know,about sharks?,Discuss with your partner:,Sharks are endangered, read the,passage and judge the sentences.,Read the first paragraph,1. Sharks,fin,（鱼鳍）,soup is famous and,expensive all around the world.,2. We have to kill a whole shark to get a,bowl of sharks fin soup.,Read the second paragraph,1. People cut off sharks fins and 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 third paragraph,1.,WildAid,and the WWF are environmental,protection groups in China.,2. Sharks fins are good for health.,Where shark fin soup is popular,Number of sharks caught,and traded every year,How much the numbers of,some kinds of sharks have,fallen in the last 20 to 30,years,Two environmental groups,which are against “,finning,”,southern China,70 million,over 90 percent,WildAid,and the WWF,3a,Read the passage about sharks and complete the fact sheet below.,3b,Read the passage again and fill in the blanks with the words in the box.,so although if but when,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.,but,Although,if,adj.,科学上的，科学的,Retell the passage according to the words below.,shark fin soup in southern China,each time cut off,no longer not onlybut also,at the top drop,be endangered the strongest around 70 million fallen by over 90 percent,WildAid,and the WWF,develop laws scientific studies,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，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 ca,nt,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 method is,not only,cruel,but also,harmful to,the environment.,这种方法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,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。,He shouted,at the top of,his voice in order that he might be heard.,他尽力大声叫喊,以便别人能听见。,4. If their,numbers,drop too,low, it will,bring danger to all ocean life.,如果它们的数目降至过低，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,quickly 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。,2),WildAid,和,WWF,组织,WildAid,（美国野生救援协会）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。,Homework,Write 5 measures to protect the,environment.,
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