新目标9下Unit11SectionAp3.ppt

Unit 13 Were trying to save the earth!,Section A 2 3a-3b,The earth is badly polluted. What should we do to save the earth?,Lets take actions (采取行动),Bring a bag to go shopping.,Take buses instead of driving cars.,Throw rubbish in the bins and keep public places clean.,Never take wooden chopsticks or plastic forks when buy takeaway food.,Recycle the waste.,A pangolin,They are caught and traded by people. They are in great danger!,Do you know other endangered animals?,A shark,Do you think sharks are endangered?,1.Are sharks endangered animals? Yes, they are. 2.If so, what cause them to be in danger? People catch them for their fins.,Shark fins,Read the article and answer the questions:,Humans are not the only life on the earth. There are also many animals and plants living with us.,There are some animals are endangered. We should do something to protect the animals and the environment!,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 fact sheet below.,Read the article again and answer questions: 1. What do people do after cutting off the fins? 2.Why is cutting off the fins cruel and harmful to the environment?,3.How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years? 4. What do the environmental protection groups do the help save the sharks? 5.Is it true that shark fins are good for peoples health?,1. What do people do after cutting off the fins? They throw the sharks back into the ocean. 2.Why is cutting off the fins cruel and 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 ocean ecosystem. If their numbers drop too low, it will bring danger to all ocean life.,3.How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years? The numbers of some kinds of sharks have fallen by 90 percent in the last 20 to 30 years. 4. What do the environmental protection groups do the help save the sharks? They are teaching the public about finning. They have even asked governments to develop laws to stop the sale of shark fins. 5.Is it sure that shark fin soup is good for peoples health? No. So far, no scientific studies have shown that shark fins are good for health.,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.,but,Although,if,Retell the passage according to the words 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” , 相当于not any longer。 e.g. Mr Brown no longer works here. 布朗先生不再在这里工作了。,2. This is 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 the piano well, but also writes music. 她不但很会演奏钢琴，而且还会作曲。 Not only she but also her parents are musicians. 不仅仅是她，她的父母都是音乐家。 Not only her parents but also she is a musician.,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 can she play the piano well, but she can also write music.,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. 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