Section B. Material analysis本课是第二单元第二话题的第二课时，主活动是1a。1a通过Kangkang和Michael之间的对话配合相应的图片，谈论中国空气污染的严峻形势，提出人们在日常生活中应爱护环境的建议。本课内容贴合学生的实际生活，表达了责备，抱怨等情绪；对于如何保护环境，该部分运用祈使句等提出了各种建议，重点学习了不定代词和不定副词的用法和区别。1b主要训练学生在听力过程中抓细节的能力。1c通过抓信息，填表格，整合保护环境的建议。2和3 通过听和写的方式，进一步巩固不定代词和不定副词的用法。4则意在规范学生在日常生活中的不文明行为。通过本课的学习，可以让学生意识到保护环境并不难，作为学生完全可以通过注意生活中的细节来参与环境保护，并自觉纠正破坏环境的不良行为。.Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，区别不定代词和不定副词的用法。正确运用保护环境的建议，表达责备和抱怨等情绪。2.Skill aims: 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”。4.Culture awareness: (optional). The key points and difficult points1. 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 allSentences: But the government is doing something useful to protect the environment. None of us likes pollution. Dont 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。. Learning strategies 通过1b，教会学生将听到的内容转换成图片信息。 通过2和3，训练学生在不同的语境中运用不定代词和副词。 通过要求学生掌握弱读和连读的发音技巧，反思自己的发音中的问题。. Teaching aids单词卡片（如：none/ nobody; use/ user; garbage/rubbish）；腾格尔天堂的MV；关于污染的图片或者幻灯片；录音机等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Getting students ready for learning（2 mins)Class activityLet the Ss enjoy a song named Heaven by Tenger and enjoy the scenery in the MV as well.T: Hello, everyone! Now lets enjoy an MV about Tengers Heaven. Have you ever heard it?S1: Yeah. T: OK. Lets watch it together. Please enjoy the beautiful scenery and imagine you live in such a beautiful place. Ss: Play a song Heaven by Tenger and enjoy the scenery in the MV.S1: Yeah. Ss: 歌曲，腾格尔的天堂中有迷人的景色和优美的环境，这些和课文提到破坏环境的一些行为不相符合。教师可以通过视频来唤起学生对美的向往和追求其它秀美的风景图片或视频短片也都是很好的素材。2Lead-in (5 mins)Class activityLet the Ss listen again and try to write down some words or phrases to describe the beautiful scenes in the song. T: Oh, some of you are great singers. OK, listen again, try to use some words or phrases to describe some beautiful scenes in this song.T: Who wants to try? S1: A blue sky with white clouds. S2: The running horses.T: Anything else?S3: Large green grass S4: Clear water in the beautiful lake.S5: Listen again; try to write down some words or phrases to describe the beautiful scenes in the song.S1: A blue sky with white clouds. S2: The running horses.S3: Large green grass S4: Clear water in the beautiful lake.S5: 3Pre-listening (5-7 mins)Class activityShow the picture in 1a and lead the Ss to the new lesson. Teach the new words.T: Do you like the environment there?Ss: Yes, I like it very much.T: Its really a good place to live in. Now look at this picture, what can you see in the picture?Ss: Some factories / air pollutionT: Right. Is it beautiful?Ss: No.T: If we build some factories on the grass, what will happen?Ss: The beautiful scenery will disappear.T: Right. So terrible. Now air pollution has become a serious problem in China. China has become both the largest producer and the largest user of coal in the world. Coal can provide us with energy, however, it also brings us air pollution. Do you like air pollution?Ss: No.Look at the picture of air pollution and learn the new words.Ss: Yes, I like it very much.Ss: Some factories / air pollutionSs: No.Ss: The beautiful scenery will disappear.Ss: No.在环节与环节的过渡上，要注意自然流畅，顺理成章的进入下一个步骤。巧妙的过渡语既能起到承上启下的作用，又能抓住学生的注意力。4While-listening (6 mins)Individual workIndividual workStep 1: Guide the Ss to listen to 1a and finish 1b.T: None of us likes pollution. So what should we do to protect the environment? Lets listen to Kangkangs advice. When listening, try to number the pictures in 1b. T: OK, lets check the answers. The right order isS1: 2-3-4-1-5.Step 2: Get the Ss to listen to 1a again and complete the table in 1c.T: Now listen to 1a by yourselves and try to complete the table in 1c. .T: OK, No.1.S1: Care for wild animals.T: No.2.S2: Plant more trees.T: How about No.3?S3: Do everything we canListen to the dialog and number the pictures. Finish 1b.S1: 2-3-4-1-5.Listen to 1a again and complete the table in 1c.S1: Care for wild animals.S2: Plant more trees.S3: Do everything we can通过完成1c的读后任务，进一步理解对话内容。本课的对话简单，1c的任务相对容易，