英语人教版九年级全册Unit13SectionA 3a-3c.doc

Unit 13 Were trying to save the earth!一、教学目标：1.Target language: People are throwing away things every day.People are littering in public places.To cut down air pollution, we should take the bus or subway instead of driving.Our actions can make a difference and lead to a better future.2.Grammar: Present progressive, modal verbs3. 情感目标: 有环境危机意识，学会关注环境保护环境。二、教学重难点： 1. Listening for specific information.2. Role playing, transforming information.三、教学步骤:I. RevisionII. Warming up 1. T: The earth is badly polluted. What should we do to save the earth? Lets take action. For example: Turn off the lights when you leave a room; Take buses instead of driving cars2. There are some animals are endangered. We should do something to protect the animals and the environment! III. Discussion1. What do you know about shark(鲨鱼)?2. Do you think sharks can be endangered? Why?3. What do you think might cause a fall in the number of sharks?IV. Reading1. Complete the fact sheet in 3a. 2. Retell the passage. V. Practice (Work on 3b) Read the passage and fill in the blanks with the words in the box.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.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.VI. Language points 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. 1) She not only plays well, but also writes music. 她不仅很会演奏，而且还会作曲。 2) 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 t