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能听懂有关保护环境的建议和表达责备和抱怨等情绪的短文。
能正确运用弱读和连读的技巧，使发音流畅，富有韵律感。
能表达责备和抱怨等情绪，能就环境保护提出自己的建议。
3.Emotional aims: (optional)
引导学生关注身边的环境问题，树立绿色环保意识。做到“保护环境——从我做起，从小事做起”。
Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: none, rubbish, wild, nobody, worst, situation, punish, perhaps, everybody, user, spit, untidy, rude, behavior, nowhere.
Something useful/ important, none of us, here and there, in public, care for/ look after /take care of, worst of all.
Sentences: But the government is doing something useful to protect the environment.
None of us likes pollution.
Don’t spit anywhere in public.
Everyone should care for wild animals and plant more trees.
We should do everything we can to protect the environment.
Grammar: Indefinite pronoun and adverb.
2. Difficult points：
能熟练地表达责备和抱怨的情绪，并提出保护环境的建议。
能在不同语境中，正确使用不定代词和不定副词。
在朗读中，能正确地把握连读和弱读的技巧。
Ⅳ. Teaching aids
关于污染的图片或者幻灯片
Ⅴ. Teaching procedures
1. Getting students ready for learning: play a game.
2. Lead-in. Show a picture of Beidou Middle School.
3. Look at the picture of air pollution and learn the new words.
4. Listen to 1a and number the pictures. Finish 1b.
5. Listen to 1a again and complete the table in 1c.
6. Let the Ss read 1a in roles, and then act the dialog out, paying attention to the pronunciation and intonation.
7. Let the Ss read 1a carefully and underline the difficult points including words, phrases and sentences. Write down the key points on the Bb.
8. Finishing Task 2. Lead the Ss to scan the letter and try to fill in the blanks first, and then listen and complete the letter. At last, discuss the usage of indefinite pronoun and adverb.