六年级上册英语教案Module 4 Unit 12 The Earth_【第三课时】牛津上海版（三起）

Unit 12 The Earth 【第三课时】 【教学目标】 1．通过Ask and answer的问答活动，学生运用核心句型交流看法。 2．通过Think and write的写作练习，学生综合本单元所学知识，运用核心句型提出环保行动建议。 3．通过学习任务(Task),帮助学生巩固和综合运用本单元所学的知识和技能。 【教学重难点】 句型：We should ... (do) We should stop ... (doing) 【教学准备】 课件、音频 【教学过程】 I. Pre-task preparations 1．学生朗读Look and read的课文，引入本课时内容。学生用自己的话表述文章的核心内容，作为上一节课的复习。朗读可以采取集体形式，而复述课文则可以采取个人或小组交流的方式。 2．教师设问，引入本节课的主题。 T: From the passage, we know that our Earth is getting sick. There are different kinds of pollution on the Earth. What are they? S1: They are air pollution and water pollution. T: Yes, pollution makes the Earth dirty and sick. Let's find more solutions to these environmental problems. II. While-task procedures 1．出示人们破坏自然资源的图片，并让学生列举生活中的类似现象，如白色污染（white pollution)、砍伐树木等，让学生根据地球污染的原因深入讨论，找出解决方案。 T: What causes air pollution? S1: Smoke from cars and factories makes the air dirty. S2: Trees can keep the air clean and cool the air. However, people cut down too many trees. T: So what should we do to keep the air clean? S1: We