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1、Topic 2 All these problems are very seriousSection A. Material analysis本课是第二单元第二话题的第一课时。主活动是1a。1a通过Kangkang向他的同伴Maria和Jane抱怨恶劣的天气，引出本课的功能意念：抱怨和责备。同时也初步呈现了本单元的语法点：不定代词和不定副词。1b主要培养听力策略，即重点听对话的大意。1c侧重于考查归纳总结的能力。在2中，通过“用所给词的正确形式填空”这种题型，巩固1a中的重点语言点。借助3的图片和信息提示，进一步形象地了解沙尘暴形成的过程。通过4的听力练习，提高学生听取文段细节的能力。本课通过
2、谈论沙尘暴的成因说明了树木对环境保护的重要作用。同时也让学生了解天气与人类活动的关系，关注全球的环境问题。.Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，谈论沙尘暴的成因。初步感知不定代词和不定副词的用法。2.Skill aims: 能听懂谈论沙尘暴成因的对话。能够从所听材料中获得有效的细节信息。能够根据图片和信息提示词描述沙尘暴形成的过程。3. Emotional aims: (optional) 让学生了解环境污染的严峻形势，引导学生爱护大自然，爱护花草树木，树立绿色环保意识。4. Culture awareness: (optional) 通过课
3、文的学习，让学生了解沙尘暴形成的原因和过程，关注全球的环境问题。. The key points and difficult points1. Key points: Words and phrases: sand, although, sandstorm, desert, human being, reduce, completely, change into, stop from, blow/ wash away, as a resultSentences: A lot of water can be saved by forests.Although we have built “The
4、 Green Great Wall”, we still need to do something to protect the environment.Grammar: Indefinite pronoun and adverb. 2. Difficult points： 能够从所听材料中获得有效的细节信息来补全句子。能够根据图片和信息提示词描述沙尘暴形成的过程。. Learning strategies 通过引导学生在听前阅读1b和3，培养学生形成听前熟悉、预测听力材料的学习习惯。 通过3中的插图预测并描述新话题，培养学生的逻辑推理能力。. Teaching aids关于沙尘暴的视频和图片
5、，录音机，幻灯片等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Getting students ready for learning（3 mins)Class activityPlay a short video about a sandstorm and let Ss guess what kind of weather it is.T: Hi, boys and girls! Its a fine day, isnt it?Ss: Ye
6、s.T: Now watch the short movie and guess what kind of weather it is?T: Can you tell me what the weather is?Ss: Yes, 沙尘暴.T: Right. We call it “sandstorm”. Its a kind of storm caused by sand. So we call it sandstorm. Now read after me, “sand” “sand”.(Point to a scene in the video.)Ss: “sand”, “sand”T:
7、 “storm”, “storm”Ss: “storm”, “storm”T:“sandstorm”,“sandstorm”Watch a video about a sandstorm and guess what kind of weather it is. Ss: Yes.Ss: Yes, 沙尘暴.Ss: “sand”, “sand”T: “storm”, “storm”Ss: “storm”, “storm”Ss: “sandstorm”, “sandstorm”通过播放与沙尘暴相关视频，进入本课话题，从视觉，听觉等方面感知沙尘暴这种恶劣的天气现象，为了解环境问题做好准备。教师在教读单
8、词时，注意使用升调和降调，配上手势，培养学生的语音语调。2Lead-in (3 mins)Group work Show the pictures of a sandstorm, let the Ss guess how sandstorm comes into being and number the pictures in 3.T: OK, do you know how sandstorm comes into being? Please look at the pictures, discuss and number them in groups.T: OK, how does the
9、 sandstorm come into being? Tell me the right order, please.S1: Its 4-1-5-3-6-2. Look at the pictures about a sandstorm, guess how sandstorm comes into being and number the pictures in 3.S1: Its 4-1-5-3-6-2. 先处理3部分，简单描述沙尘暴形成的过程，让学生对这种天气，有所了解，然后在进入1a，详细谈论沙尘暴形成的原因以及树木的功能，这样，让课堂环节更加流畅。3Pre-listening (5
10、-7 mins)Group work Let the Ss talk about sandstorm according to the pictures and the given words in 3 in groups.T: Yeah, you are right. With the help of pictures and the words below, can you talk something about sandstorm?Ss: Yes.T: Now discuss with your group members.T: OK, who can try?S1: Long ago
11、, there were lots of trees and forests. But people needed some wood to build houses and do other things, so they cut down the trees day by day. And the forests have gone slowlyS2: Talk about sandstorms according to the pictures and the given words in 3.Ss: Yes.S1: Long ago, there were lots of trees
12、and forests. But people needed some wood to build houses and do other things, so they cut down the trees day by day. And the forests have gone slowlyS2: 引导学生通过图片和短语提示，正确排列图片顺序，对沙尘暴形成的过程进行描述，训练学生连词成句，连句成片的能力。为了降低难度，可以这样操作：先让小组内的每个成员根据提示词写一个或者几个相关的句子，再一起将这些句子串起来，最后注意加上正确的连接词。在展示环节，可以让学生以小组为单位，一起上台做一个关
13、于沙尘暴的presentation，展示小组合作的成果，体现小组的风采。4While-listening (8 mins)Individual workPair workStep 1: Present the picture in 1a. Let the Ss listen to 1a once and do 1b alone.T: Right. Now look at this picture. Whats the weather like?S1: Its a sandstorm. T: How do you like the weather?S2: I think its terrible
14、.T: People cant see things clearly. And its bad for our health. Now listen to the tape and choose the best answer in 1b. When you are listening, pay attention to the main idea.T: Now please check answers. The boy and girls are talking aboutS1: B, the reasons for sandstorms.Step 2: Let the Ss listen
15、to 1a again and complete the functions of trees in 1c. They can discuss in pairs.T: Listen to 1a again and find the functions in 1c.T: What are the trees functions?S1: Trees can stop the wind from blowing the earth away.S2: They can also stop the water from washing the earth away.Look at the picture in 1a, listen and choose the best answer in 1b. .S1: Its a sandstorm. S2: I think its terrible.S1: B, t
