Unit 13 Section A（3a-4c）教案 2023-2024学年人教版英语九年级全册

Unit13 SectionA（3a-4c） 教学目标 1．学习并掌握新词汇：shark，fin, cruel, harmful，chain，ecosystem，low，industry，law, scientific 2．学会并正确使用以下常用表达： hear of，cut off，throw…into，no longer，not only…but also，be harmful to，at the top of…，the sale of… 3. 通过学习3a部分的文章，了解鲨鱼的生存现状，树立保护濒危动植物的意识。 教学难点 1．学习并掌握新词汇：reusable，afford，transportation 2．学习并会用以下常用表达：try to do sth.，used to do sth.，is/are doing，be considered，take part in，help with，help out，turn off，instead of，pay for，add up，afford to do sth.，not…any longer，take action，It's difficult for sb. to do sth. 3. 复习现在进行时，被动语态，现在完成时，情态动词，used to do的用法。 教学过程 一、Let’s look, think and say. Warm-up Look at the pictures and talk about the animals. Make a free talk about the animals in the whole class.  -Do you like animals?  -What kind of animals do you like best?  - Do you know some endangered animals? Pre-reading Let’s look at pictures of endangered animals in our country. -What do you know about sharks? -Do you think sharks are endangered? Why? -What do you think might have caused a fall in the number of sharks? 3b Read the passage again 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 ocean’s 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. Grammar Focus 现在进行时 表示现在或现阶段正在进行的动作。常用的时间状语有：now，at the moment，right now等。在句首出现look或listen，也可以判断出后面的句子用现在进行时。 e.g. She is watching TV now. 她现在正在看电视。 Look！The panda is climbing a tree. 看！那只熊猫正在爬树。 come, go, arrive, leave, start, begin, return等动词的现在进行时形式可以表示将要发生的动作。 e.g. I’m leaving tomorrow. 明天我就要离开了。 现在完