九年级Unit13We are trying to save the earht SectionA.pptVIP

Many believe that sharks can never be endangered because they are the strongest in their food chain. 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 over 90 percent in the last 20 to 30 years. Points in Para2 endangered 濒临灭绝的 in fact 实际上 catch-caught-caught industry 工业，产业，行业 fall-fell-fallen over 90 percent 超过百分之九十 in the last 20 to 30 years 在过去的20到30年里 （用现在完成时） Many believe that sharks can never be 濒临灭绝的 because they are the strongest in their food chain. But 实际上, around 70 million sharks are 捕捉 and traded in this 产业 every year. The numbers of some kinds of sharks have 在过去的20到30年下降了超过百分之九十. Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of shark’s fins. So far, no scientific studies have shown that shark’s fins are good for health, so why eat them? Help save the sharks! Points in Para3 environment-environmental environmental protection groups 环保组织 such as 例如 develop laws to stop the sale of shark fins 完善法律来组织预鱼鳍的销售 so far 到目前为止 （用现在完成时） scientific studies 科学研究 show-showed-shown/showed 环境保护组织 around the world, 例如 WildAid and the WWF, are teaching the public about “finning”. They have even asked governments 完善法律来阻止鱼鳍的销售. 到目前为止, no 科学研究 have 表明 that shark’s fins are good for health, so why eat them? Help save the sharks! Let’s learn some language points harmful 形容词，意为“有害的”。常构成短语 be harmful to “对……有害的”。 Staying up often is harmful to your health. 经常熬夜对你的健康有害。 【拓展】 harm 名词，意为“害处”。常用构成短语 do harm to “对……有害”，相当于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟过多对他的健康有害。 改为同义句。 Reading in the sun does harm to our eyes. Reading in the sun ___ _____ _______ our eyes. is harmful to * Section A Unit 13 We’re tryin