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Unit 2 Topic 1 Pollution has causes too many problems
Section C
Ⅰ. Material analysis
本课是第二单元第一话题的第三课时，主活动是1a和4。学生通过阅读1a，了解噪音污染是如何产生的，是怎样影响人们健康的。1b则训练学生通过语境，推断词义，选出与该词匹配的英文解释。1c先让学生找出主旨句，再通过找出细节来论证段落的中心思想，以及通过语境判断重点词汇和句子的意思。2继续谈论噪音污染，通过选词填空的方式辨析单词的用法。3让学生模仿1a 来讨论其它的污染。为了让学生顺利地完成讨论任务，还给出了可能涉及到的讨论内容，很有指导性。4是在2和3的基础之上进行的写作练习，让学生学习运用中心句来组织文章。通过了解噪音污染，让学生进一步了解各种污染的现状。引导学生关注环境问题，关注各种污染，树立正确的环保意识。
Ⅱ.Teaching aims
1.Knowledge aims：
掌握本课的重点词汇和短语，初步感知定语从句。
了解与噪音污染有关的常识。
区别不同词性的单词的用法。
2.Skill aims:
能读懂有关环境污染的文章。
能看懂和听懂简单的英文解释。
能够理解段落中各个句子间的逻辑关系。
能用合适的英语对环境污染问题进行口头和书面语表达。
3.Emotional aims: (optional)
通过学习，加深对环境问题的认知，树立环保意识。
4.Culture awareness: (optional)
了解各种不同种类的污染，关注全球的环境现状。
Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: on to, go deaf, do harm to/be harmful to, lose one’s hearing/ have hearing loss, in noisy condition/ too much noise, no better than, not only…but also…, cause sb. to do sth., all sorts of environmental problems, including noise problems
Sentences:
Grammar: Simple past, present perfect.
2. Difficult points：
能正确理解和使用“no better than”,“do harm to”等短语。
Ⅳ. Learning strategies
Ⅴ. Teaching aids
与污染相关的图片；单词卡片（如harm/ harmful; hear/ hearing; lose/ loss等）；录音机；幻灯片；音频（rock music）等。
Ⅶ. Blackboard design
Pollution has caused too many problems.
Section C
Key phrases:
go deaf
do harm to
be harmful to
lose one’s hearing
have hearing loss
in noisy condition
too much noise
no better than
as badly as
Sentences:
(1)… noise is also a kind of pollution and is harmful to humans’ health.
(2)People who work and live in noisy conditions go deaf easily.
= People go deaf easily. / People work and live in noisy conditions.
(3) … many teenagers in America can hear no better than 65-year-old people do, …
= … many teenagers in America can hear as badly as 65-year-old people do, …
lose – loss
pollute – pollution
pleasant – unpleasant
harm – harmful
noise – noisy
comfortable – uncomfortable
hear – hearing
health – healthy
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