Unit 13 第2课时 Section A (3a-4c)-（教案）【木牍教育·课时A计划】2023-2024学年九年级下册英语人教版（安徽）

第二课时　Section A (3a-4c) ◇目标导航◇ 类别 课时要点 重点单词 shark n.鲨鱼 harmful adj.有害的 industry n.工业;行业 law n.法律;法规 scientific adj.科学上的;科学的 重点单词 afford v.承担得起(后果);买得起 reusable adj.可重复使用的;可再次使用的 重点短语 be harmful to 对……有害 at the top of 在……顶部或顶端 take part in 参加 turn off 关掉 重点短语 pay for 付费;付出代价 take action 采取行动 重点句型 1.Many have heard of shark fin soup.许多人听说过鱼翅汤。 2.When people catch sharks,they cut off their fins and throw the shark back into the ocean.当人们捕获鲨鱼时,他们割掉鱼鳍后再把鲨鱼抛回大海里。 3.This is not only cruel,but also harmful to the environment.这种方法不仅残忍,而且对环境有害。 4.If their numbers drop too low,it will bring danger to all ocean life.如果它们(鲨鱼)的数量降至过低,会给所有海洋生物带来危险。 教学重点 1.让学生掌握本课时的重点单词和短语。 2.让学生通过阅读练习提高阅读能力。 教学难点 1.让学生正确运用现在进行时、used to、被动语态、现在完成时和情态动词。 2.让学生能够恰当运用所学的知识讲述环境污染现状和如何保护环境。 ◇教学过程◇ 预习指导 一、方法指导 1.预习Page 99~100上的生词,根据音标能读出这些词,并掌握其词性及汉语意思。 2.朗读3a中的文章,找出重点句子。 3.大声朗读并翻译Grammar Focus部分的句子,画出重点短语和句型。 4.完成4a-4c中的任务,小组核对答案。 二、预习检测 英汉互译 1.鱼翅汤 　shark fin soup　  2.cut off the fins 　割掉鱼鳍　  3.对环境有害 　be harmful to the environment　  4.at the top of the food chain 　处于食物链的顶端　  5.在最近的20到30年间 　in the last 20 to 30 years　  6.fall by over 90 percent 　下降了超过90%　  7.制定法律 　develop laws　  8.the sale of shark fins 　鱼翅买卖　  课堂教学 Step 1 Leading in 1.Greeting. 2.Brainstorming: Quickly ask questions about how to protect the environment and let the students answer. T:What are your ideas for solving the air/waste pollution problems?... 3.Ask the students to role⁃play the conversation in 2d. Step 2 Work on 3a 1.Talk about the protection of endangered animals in our country with the students. 2.Show pictures of sharks.Ask the students the following questions: What do you know about sharks? Do you know sharks are endangered?Why? What might have caused a fall in the number of sharks? Discuss with the students and present the new words and phrases:shark,fin,be harmful to,the food chain,ecosystem... 3.Let the students quickly read the passage and check their answers to these questions.Help the students to learn