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1、Unit 2 Saving the EarthTopic 1 Pollution causes too many problems.Section AThe main activities are 1a, 1b and 3a. 本课重点活动是1a、1b和3a。. Teaching aims and demands 教学目标1. Learn some new words and phrases:bee, my goodness, waste, stream, breathe, be harmful to, influence2. Learn some useful sentences: (1)
2、Oh, my goodness! (2) Look, there are several chemical factories pouring waste water into the stream.3. Learn direct speech and indirect speech:(1) Kangkang said that it was a beautiful place with lots of flowers and grass.(2) Kangkang said that the flowers and grass had gone.4. Learn and talk about
3、different kinds of pollution:(1) Air pollution makes people sick. (2) Light pollution is harmful to eyes. (3) Litter influences our environment. . Teaching aids 教具幻灯片. Five-finger Teaching Plan 五指教学方案Step 1 Review 第一步 复习(时间:3分钟)回顾第一单元有关家乡变化的内容，复习现在完成时态，导入新课。Step 2 Presentation 第二步 呈现(时间:15分钟)通过比较1a的
4、两幅图画的差异，展开对话，学习部分生词，呈现1a。1. (利用幻灯片展示1a中的两幅图，师生问答。) (板书并要求学生掌握。) there is/are doing sth.Bee,stream,my goodness, chemical, breathe, waste, harmfulbe harmful to2. (要求学生不看书，只听录音，捕捉要点，回答问题，从而提高听力水平。)T:Close your books. Listen to the tape carefully, then answer the questions. (出示小黑板上的问题，听录音1a。)(1)Where ar
5、e they going to have a picnic?(2)Why does Kangkang say “Oh, my goodness!” ?3. (核对答案，板书1a的关键词。)beautifulfreshcleangonedirtyterriblewaste waterStep 3 Consolidation 第三步 巩固(时间:12分钟)1.复述1a，引入本课重点，讲解和操练“直接引语”与“间接引语”，完成1b。2. (引入语法“直接引语”和“间接引语”。要求学生根据1a回答教师的问题。)T: What did Kangkang say?(要求学生轮流回答。)。Kangkang
6、said that he had been there before.Kangkang said that it was a beautiful place with lots of flowers and grass.Kangkang said that the air was fresh and the water was clean, and they would see 3. (让学生完成1b，并作报告。)T: Fill out the table in 1b, then give a report, using “Kangkang/Maria said ”.Step 4 Practi
7、ce 第四步 练习(时间:10分钟)通过听力训练，引出污染的概念，充分调动学生的积极性，加深对各种污染及其危害的理解，完成2, 3a和3b。1. (播放2录音，学生听后完成2。)T: We know, without plants and animals, the West Hill isnt beautiful. So plants and animals are important. Lets look at the lovely animals in the pictures in 2. Listen to the tape and write down the numbers of t
8、he correct pictures. (若学生没听懂，可再放一遍，核对答案。)2. (学生看图完成3a。)Step 5 Project 第五步 综合探究活动(时间:5分钟)Homework: Make a survey. (调查你们家附近的污染状况，并填写表格，以增强学生的环保意识。)T:Now make a survey to study the pollution around your home, and fill out the form. PollutionReasonEffectAir pollutionSoil pollutionWater pollutionLight pollutionNoise pollutionLitter板书设计：Pollution causes too many problems.Section Aair pollutionthere be sb./sth. doing sth.soil pollutionbe harmful to water pollutionKangkang said that it was a beautifullight pollutionplace with lots of flowers and grass.noise pollutionlitter