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Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: deaf, print, recently, sentence, meaning, hearing, loss, disturb, uncomfortable, unpleasant, sort, environmental, including, 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: (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.
(3) … many teenagers in America can hear no better than 65-year-old people do …
2. Difficult points：能根据所学内容，表达与污染相关的话题。
能区别使用不同词性的单词。能大致理解含有定语从句的句子。
能正确理解和使用“no better than”,“do harm to”等短语。
Ⅳ. Learning strategies
能通过思维导图，对课文内容进行读前预测。
能根据不同阅读材料，运用不同的阅读策略获取信息。
善于利用教材插图理解有关污染和环保的对话或文章。
能积极地加入小组，合作探究，学会表达自己的观点。
能根据写作要求，搜集、准备有关污染和环保的素材。
Ⅴ. Teaching aids
与污染相关的图片；幻灯片；音频（rock music）等。
Ⅵ. Teaching procedures
Stage
(time period)
Interaction
patterns
Teacher activity
Student activity
Design intention
Getting students ready for learning and revision
（2 mins）
Class activity
Show some pictures about pollution and let the Ss speak out the different sorts of pollution.
Speak out the different sorts of pollution.