九年级Unit13教案如何高效设计？

九年级英语 Unit 13 We're trying to save the earth! 教案

教学基本信息

• 课题: Unit 13 We're trying to save the earth! (Section A 1a-2d)
• 年级: 九年级
• 课时: 第1课时 (共4-6课时)
• 课型: 新授课
• 教材版本: 人教版 Go for it!

教学目标

1. 知识与技能目标:

   • 词汇: 掌握并运用本单元核心词汇，如 litter, pollution, spit, cough, cut down, plastic, bottle, turn off, reuse, recycle 等。
   • 句型:
     • 熟练运用 We should... 和 We shouldn't... 来提出建议和表达禁止。
     • We shouldn't litter. We should turn off the lights when we leave a room.
   • 语法: 初步理解和掌握情态动词 should 的用法，表示“应该”做某事。
   • 听: 能听懂关于环保问题和建议的简短对话。
   • 说: 能运用 should 和 shouldn't 就身边的环保问题进行简单的讨论和提出建议。
   • 读: 能读懂关于环保问题的短文和对话。
   • 写: 能写出几句简单的关于环保建议的句子。

2. 过程与方法目标:

   
   （图片来源网络，侵删）
   • 通过情景创设、小组讨论、合作探究等方式,引导学生在真实语境中学习和运用语言。
   • 培养学生通过图片、上下文猜测词义的能力。
   • 鼓励学生将所学知识与生活实际相结合,做到学以致用。

3. 情感态度与价值观目标:

   • 认识到当前环境问题的严重性，如污染、垃圾等。
   • 增强学生的环保意识和社会责任感,激发他们为保护地球贡献力量的热情。
   • 培养学生爱护环境、从我做起的良好习惯。

教学重难点

• 教学重点:

  1. 核心词汇的认读和运用。
  2. 句型 We should/shouldn't + 动词原形 的理解和运用。

• 教学难点:

  1. 在实际情境中灵活运用 should 和 shouldn't 提出建议。
  2. 理解并区分 stop doing sth. (停止做某事) 和 stop to do sth. (停下来去做另一件事) 的用法。

教学准备

• 教师: 多媒体课件、图片/视频（展示环境污染和优美环境的对比）、单词卡片、录音机或多媒体播放设备。
• 学生: 课本、练习本、笔。

教学过程

Step 1: Warm-up and Lead-in (热身与导入) (约5分钟)

1. 情景对比:

   • 教师在PPT上展示两张对比鲜明的图片：一张是干净、美丽的公园，另一张是垃圾遍地、河水浑浊的场景。
   • 提问: "Boys and girls, look at these two pictures. How do they make you feel? What's the difference between them?"
   • 引导学生用简单的英语描述，如: "The first one is beautiful, but the second one is terrible." "There is a lot of trash/rubbish in the second picture."

2. 引入主题:

   • 教师总结学生的回答,并引出本单元主题。
   • T: "Yes, the second picture shows a serious problem. It's called 'pollution'. Our earth is sick. So, what should we do? Today, we are going to learn how to save the earth. Let's open our books to Unit 13."
   • 板书课题: Unit 13 We're trying to save the earth!

Step 2: Presentation (新知呈现) (约15分钟)

1. 学习词汇:

   
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   • 利用PPT展示1a部分的图片,逐一教学新单词。
   • litter: Show a picture of trash on the ground. "Look, this is litter. We shouldn't throw litter everywhere."
   • spit: A picture of someone spitting. "Spitting in public is a bad habit. We shouldn't spit."
   • cut down trees: An animation showing trees being cut down. "People are cutting down too many trees. This is bad for the environment."
   • pollution: A general picture with smoke, dirty water, etc. "All these bad things make pollution."
   • plastic bottle: A picture of a plastic bottle. "We can see plastic bottles everywhere. They are hard to break down."
   • cough: A picture of a person coughing. "The air is bad, so I cough."
   • 教师领读，学生跟读，注意发音，可以采用看图说词、快速闪卡等方式进行巩固。

2. 学习核心句型:

   • 呈现:
     • 教师指着垃圾的图片，问: "What should we do?" 引导学生回答: "We shouldn't litter." 教师板书。
     • 教师指着关灯的图片，问: "What should we do when we leave a room?" 引导学生回答: "We should turn off the lights." 教师板书。
   • 讲解:
     • 教师在黑板上突出 should 和 shouldn't。
     • T: "Look at the sentences. We should + verb (base form). It means we ought to do something. It's a good idea."
     • T: "We shouldn't + verb (base form). It means we ought not to do something. It's a bad idea or a rule."
     • 强调: should 后面必须跟动词原形。

Step 3: Practice (练习) (约10分钟)

1. 1a Matching:

   • 让学生独立完成1a的匹配练习,将图片与对应的短语连接起来。
   • 核对答案,全班齐读短语。

2. 1b Listening:

   • Pre-listening: "Now, let's listen to the conversation. What are the students talking about?"
   • While-listening: Play the recording for the first time. Students just listen.
   • Post-listening: Play the recording again. This time, ask students to circle the problems they hear in 1a.
   • Check answers: Ask students to share their answers.

3. 1c Pair Work:

   • 示范: 教师与一名学生进行示范对话。
     • T: "I think people are littering everywhere." S1: "Yes, they are. We shouldn't litter."
     • T: "I think people are cutting down too many trees." S1: "You're right. We should plant more trees."
   • 学生活动: 让学生两人一组，根据1b所听内容进行对话练习，鼓励他们使用 We should/shouldn't... 句型。
   • 巡视指导: 教师走下讲台,倾听并帮助有困难的学生。
   • 展示: 邀请几组学生到台前展示他们的对话。

Step 4: Consolidation and Extension (巩固与拓展) (约10分钟)

1. 2a Listening:

   • Pre-listening: "Jason and Susan are talking about the problems. Listen and write the problems they talk about."
   • While-listening: Play the recording. Students write down the problems (e.g., plastic pollution, noisy restaurants).
   • Check answers.

2. 2b Listening:

   • Pre-listening: "Now listen again. What should we do about these problems? Fill in the blanks with should or shouldn't."
   • While-listening: Play the recording again. Students complete the sentences.
   • Check answers: Read the completed sentences together. Pay attention to the verb forms after should/shouldn't.

3. 2c Pair Work:

   • 活动: 让学生根据2a和2b的内容,进行更深入的讨论。
   • Model: "What other problems do you know in our school or community?" "We shouldn't... We should..."
   • 学生两人一组，讨论更多的环境问题及解决方案。 "We shouldn't waste water. We should turn off the tap." "We shouldn't use too many plastic bags. We should use cloth bags."
   • 成果分享: 邀请几组分享他们讨论出的新问题和建议。

Step 5: Summary and Homework (总结与作业) (约5分钟)

1. 课堂总结:

   • T: "Today we have learned some serious problems on our earth, like pollution and littering. We also learned how to give advice using We should... and We shouldn't.... Remember, saving the earth is not just a slogan. It starts with our small actions."
   • 师生一起回顾本节课所学的核心词汇和句型。

2. 布置作业:

   • 基础作业: 熟读并背诵本课所学的单词和重点句型。
   • 巩固作业: 完成2d的阅读任务,并尝试复述对话内容。
   • 拓展作业 (选做): 写一篇小短文（5-8句话），题目为 "How to Save Our School"，至少使用3个 should 或 shouldn't 的句子。 "Our school is beautiful, but there are some problems. We shouldn't throw trash on the ground. We should turn off the lights in the empty classroom. We should also save water. Let's make our school better!"

板书设计

                          Unit 13 We're trying to save the earth!
Problems (问题):              Solutions (解决方案):
- litter                    - We shouldn't litter.
- spit                      - We shouldn't spit.
- cut down trees            - We shouldn't cut down too many trees.
- pollution (air, water)    - We should plant more trees.
- plastic bottles           - We should turn off the lights.
                            - We should recycle plastic bottles.
Key Sentence Pattern (核心句型):
We should + verb (原形).  (我们应该做某事。)
We shouldn't + verb (原形). (我们不应该做某事。)

教学反思

本节课的设计紧密围绕环保主题，通过图片、情景和听力材料，将语言知识的学习与情感态度的培养有机结合，教学环节层层递进，从词汇到句型，再到听力理解和口语输出,符合学生的认知规律。

• 成功之处:

  1. 导入环节的图片对比能迅速抓住学生注意力,激发学习兴趣和环保意识。
  2. 听力活动设计有层次，从听大意到听细节，再到填空,有效训练了学生的听力能力。
  3. 小组讨论和Pair Work为学生提供了充分的口语实践机会，体现了“以学生为中心”的教学理念。

• 待改进之处:

  1. 对于基础较弱的学生，should 和 shouldn't 的转换可能仍有困难,需要在后续练习中加强。
  2. 课堂时间有限，部分小组的讨论可能不够深入,可以考虑在课后或下节课进行更长时间的专题讨论。
  3. 可以引入更多真实生活中的环保案例或视频,使教学内容更加丰富和生动。

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