人教版新目标英语九年级全册Unit13Wearetryingtosavetheearth. section a3a-3bperiod 2 ppt课件

Unit 13,Section A 3a3b,Were trying to save the earth!,单击页面即可演示,人教版新目标英语九年级全册,noise pollution,water pullution,air pullution,waste pollution,Warming up,The earth is badly polluted. What should we do to save the earth?,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.,Role- play the conversation,what are your ideas for solving these problems?,There are some animals are endangered. We should do something to protect the animals and the environment!,Save the earth! Save the animals!,endangered animals.,Shark,Have your heard of or eaten the expensive dish?,shark fin soup 鱼翅汤,n. (鱼)鳍,Do you know how to make shark fin soup?,catch and kill,cruel method,adj.残酷的,n. 方法,cut off the fins,Can sharks be endangered?,A large number of sharks are caught and traded every year.,Read the passage and answer the question,What does the passage tell us to do?,Help save the sharks!,3a,Task 1: Fast reading . Read the passage quickly and match each paragraph with the main ideas.,Para 1 Something happens when people cut off sharks fins. Para 2 Environmental protect ion groups have donesomething to protect sharks. Para 3 You are killing a whole shark when you enjoy a bowl ofshark fin soup,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.,1.What do people do when they catch sharks? 2.What will happen to a shark without a fin? 3.What do the two environmental protection groups ask the governments to do? 4.Are shark fins good for health?,They cut off their fins and throw the shark back into the ocean.,They can no longer swim and slowly dies.,To develop laws to stop the sale of shark fins.,No scientific studies have shown.,Careful reading,Read and Learn,Save the Sharks! Many have heard of shark fin soup. This famous and expensive dish is especially popular in southern China. But do you realize that youre killing a whole shark each time you enjoy a bowl of shark fin soup?,听说过,鱼翅汤,中国南部,When people catch sharks, they cut off their fins and throw the shark back into the ocean. This is not only cruel, but also harmful to the environment. Without a fin, a shark can no longer swim and slowly dies. Sharks are at the top of the food chain in the oceans ecosystem. If their numbers drop too low, it will bring danger to all ocean life. Many believe that sharks can never been endangered because they are the strongest in their food chain.,割断，切下,残忍的,对有害的,食物链,海洋生态系统,But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by 90 percent in the last 20 to 30 years. Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning“. Then have even asked governments to develop laws to stop the sale of shark fins. So far, no scientific studies have shown that shark fins are good for health, so why eat them? Help save the sharks!,行业,环保小组,野生救援协会,世界自然基金会,法律,In southern China,70 million,By over 90 percent,WildAid and the WWF,After reading,Do you know them?,WWF (World Wide Fund For Nature),世界自然基金会,Do you know them?,WildAid,野生救援协会,1. 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. 3. Many think that sharks are too strong to be endangered, _they are wrong.,so although if but when,when,so,but,Fill in the blanks.,3b,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 someting to stop the sale of shark fins.,Although,if,so although if but when,Fill in the blanks.,3b,Grammar Focus,take part in: 参加 environmental project,turn off the lights: 关灯 when you leave the room,use reusable bags : 可重复使用的袋子 when you are shopping,Joe: _you ever_(take)part in an environmental project? Ken: Yes, I have. I_(help)with a Clean-Up Day last year. It was _(consider)the biggest clean-up project this city_ever_(have).,Have taken,helped,considered,has had,参加,Fill in the blanks with the correct forms of the verbs in brackets.,4a,think,came,trying,wait,took,Joe: How many people_(take)part? Ken: I_(think)more than 1,000 people_(come) to help out. Joe: Thats fantastic! I guess everyone in this city is_(try)to improve the environment. Ken: Yes, we cant afford to _(wait)any longer to take action!,承担得起,People_think that big things_be done to save the earth. Many forget that saving the earth begins with small things. For example, you_ save electricity by turning off the lights when you leave a room. You_also use reusable bags instead of plastic bags.,can would could have to should must may/might,may,must,could,could,关掉,可再次使用的,Fill in the blanks with the appropriate modal verbs from the box.,4b,I think its a great idea that you now_pay for plastic bags in some stores. And instead of driving to school or work, you_ride your bike or work. If its far, you_take the bus. All these small things_add up and become big things that_ improve the environment. Lets take actions now!,have to,can,can,would,should,can would could have to should must may/might,A: I think that everyone should use public transportation. B: I disagree. Its difficult for parents with young children to use public transportation.,use public transportation _,Make a list of things that people can do to help the environment and discuss your list with your partner.,4c,Endangered animals,Desertification,Natural disasters,Pollution,The worlds problems,What can we do to help save the earth?,stop riding in cars,recycle books and paper,回收利用,turn off the lights when you leave a room,turn off the shower while you are washing your hair,dont use paper napkins,餐巾纸,_ stop riding in cars _ recycle books and paper _ turn off the lights when you leave a room _ turn off the shower while you are washing your hair _ dont use paper napkins,What can we do to help save the earth?,1a,A: Recycling paper is really easy. B: I agree. But its hard to stop riding in cars.,Useful expressions: stop riding in cars recycle books and paper turn off the lights when you leave a room turn off the shower while you are washing your hair not use paper napkins,Listening (1c - 1d),Explanation 1. When people catch sharks, they cut off their fins and throw the shark back into the ocean. 当人们捕获鲨鱼时，他们把鱼鳍割下来，并把鲨鱼扔回到海里。 cut off: 割下 短语辨析： cut up:切碎 Mother cut up the vegetables before cooking. cut into:切成 He cut the tomato into pieces.,Explanation 2. This is not only cruel, but also harmful to the environment. 这种方法不仅残忍，而且对环境有害。 method: 方式，方法。 You can change another method to work out the problem. harmful:有害的（形容词） harm:害处（名词）do harm to.:对有害 Eating too