Unit13SectionA3a—3b课件 人教版英语九年级全册.pptx

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1、 Section A 3a3b Unit 13 Were trying to save the earth! 第第2课时课时Look at the pictures and talk about the animals. Warming-up Do you like animals? What kind of animals do you like best? Do you know some endangered animals? Have you ever seen a shark? Can you say something about shark? Do you think they

2、are endangered? Why are they endangered?Pre-readingDiscussionWhere shark fin soup is popularNumber of sharks caught and traded every yearHow governments can helpTwo environmental groups against “finning”In southern China.Around 70 million.To develop laws to stop the sale of shark fins.WildAid and th

3、e WWF.Read the passage and complete the fact sheet.While-reading( ) 1. We have to kill a whole shark to get a bowl of shark fin soup.T( ) 2. People cut off sharks fins and throw the sharks back into the ocean.T( ) 3. Sharks are in the bottom of the food chain in the oceans ecosystem.F( ) 4. Shark fi

4、ns are good for health.FRead the passage and choose T or F. While-readingRead the passage and fill in the blanks with the words in the box. so although if but when1. 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 c

5、hain, _ 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.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

6、not do something to stop the sale of shark fins.whensoWhile-readingAlthoughifbutPost-readingFill and retellendangeredslowly diesover 90 percent WildAidstop the sale of shark fins1. 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。(1) not onlybut also 用于连接两个表示并列关系的成

7、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.Post-readingLanguage points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. 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.(2) be har

8、mful to 意为“对有害”e.g. Smoking is harmful to the health. Playing computer games much is harmful to students.Post-reading2. 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 意为“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

9、 might be heard. Post-readingPost-reading3. 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。(1) 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

10、village.(2) 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.1. This method is not only cruel, but also harmful to the environment.2. Sharks are at the top of the food chain in the oceans ecosystem.3. If their numbers drop too low, it will bring danger to all ocean life. SummaryWrite an article about a kind of endangered animals to call on people to save them.HomeworkGoodbye!