Unit_2_Topic_2教学设计.doc

Topic 2 All these problems are very seriousSection A教学设计公安县实验中学 王立英.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 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 procedures Step 1. Getting students ready for learning 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。Play a short video about a sandstorm and let Ss guess what kind of weather it is. (Point to a scene in the video.)T: “storm”, “storm”T:“sandstorm”,“sandstorm”Step 2. Lead-in 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。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 sandstorm come into being? Tell me the right order, please.S1: Its 4-1-5-3-6-2.Step 3. Pre-listening 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，一起上台做一个关于沙尘暴的presentation，展示小组合作的成果，体现小组的风采。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?Step 4. While-listening 通过课文插图，引导学生预测课文内容，为完成听力降低难度。1b的听力是抓对话的主题，不能直接找到主旨句，而是要通过归纳的方式得出，如果教师提示学生用“排除法”，可以帮助学生作出正确的选择。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?Step 5. Post-listening 在处理知识点时，教师要让学生自己去发现重难点，这有助于学生调整复习方向。如果他们组呈现的都是本课的重点知识，教师要给予肯定和鼓励。在讲解过程中，注意综合所有小组的重点，并让学生自己想办法解决，通过造句等方式在情境中来运用该知识点。1: Let the Ss read 1a in groups and then role play it.T: Read 1a with your group members and act it out.2: Let the Ss read again and find the important phrases in 1a. Then write them down on the Bb.T: Now read 1a sentence by sentence, underline the important phrases and then write them down on the Bb behind.T: OK, lets look at your notes. No.1, “change into”. Who can tell us its meaning?Step 6. Practice Let students fill in blanks and make sentencesStep 7. Discussion Work in groups. What we should do t