Moudle 2 Unit 3 The environment 教案2 (2)

Moudle 2 Environmental problems Unit 3 The environment 教案教案 2 教学目标 教学目标 1 指导学生阅读理解文章 获取信息 让学生掌握如何捕捉不同人物对同一话题的 观点 阅读的速度慢是学生的拦路虎 平时阅读时 由于没有紧迫的时间压力 学生养成 逐字逐句慢慢看 慢慢理解的坏习惯 考试时还没看懂题目就急吼吼答题 正确率自然难 以保证 在平时的阅读中 可以指导学生选择一些经常出现的意群进行操练 长期训练 自然就能大大提高学生的理解能力 一目一词的阅读方式不仅速度慢 而且影响理解 无法形成完整的概念 效率高的读 者总是将眼睛从一组词移向另一组词 即一个意群一个意群地阅读 2 指导学生了解生活中的污染源 提醒学生要爱护环境 尽量不使用会污染环境的物 品 3 指导学生运用一定的阅读理解学习策略 培养一些阅读微技能 如 推断和加快阅 读捕捉重要信息 教学重点 教学重点 1 在听力过程中 指导学生透过题目中的提示信息或线索 结合听力材料中的时间词 和时态 把握事件发展顺序 2 指导学生如何把握听力过程中的关键词 如 数词 动词和形容词 培养学生的速 记能力 教学难点 教学难点 1 指导学生学会用 why 提问原因 用 because 来回答理由 2 指导学生用 not as as 的句型比较两事物 3 指导学生用 like the same as different from 比较两事物 其中 让学生注意 like 作为动 词和介词时的用法区别 教学内容 教学内容 1 Revision 1 Have a dictation some words some phrases and a few sentences 2 Check Ss homework first and explain some difficult points in it 3 Ask several Ss to speak out what they look for about the greenhouse effect and share the information with classmates 2 Pre reading 1 Ss try to speak out some examples of pollution in the picture and then label the picture with the correct letters pair work 2 Introduce the background information of the article and go through two questions in B 3 While reading 1 Ss read it quickly and answer Qs in B 2 Ss go through the D1 D2 and compare what the differences are between Forest s view and John s view 利用文章的标题 The world is in danger 进行阅读拓展 让学生解读标题的 含义 了解到这是一篇有关环境保护的说明文 本文中 作者在对某一科普知识的描述上 均采用 因果关系 的方法 如在第一部分 The greenhouse effect 中 作者对于因果关系的描 述是环环相扣的 如下面的流程图所示 让学生发表各自对本课环境问题的观点 提高学 生英语运用能力 People burn fuels such as petrol and coal They produce a gas called carbon dioxide and too much carbon dioxide pullutes the atmosphere The atmosphere keeps in too much heat The Earth s temperature is increasing Sea level rises and cities may disappear 3 Ss read it again and fill in the table 4 Explain some key words and language points in the article cause to 1 keep in 2 in danger of 3 let in 4 keep prevent stop from doing sth 5 as a result of 6 the same as 7 take in 8 result in 9 mountains of 10 in order to in order that 11 take action 12 different from to 13 be friendly to 14 同级比较同级比较 1 肯定 as adj 原级 adv 原级 as 和 一样 否定 not as so 原级 as 2 多音节 比 more 多音节 adj than 不如 less 多音节 adj than 3 倍数 as 原级 as 是 的多少倍 倍数 比较级 than 比 多少倍 16 as adj adv as sb can could as adj adv as possible 17 for the purpose of 18 make a difference 4 Post reading 1 Ss prepare to have a discussion Half of them will agree with Forest and the rest will agree with John Ss try to give some reasons to support their views 2 Ss have a discussion in the class 3 T gives a summary about the discussion Homework 1 Do you have any ideas about pollution What s the answer to this pollution Ss try to think about some pollution and solutions Ss dis