1、Unit 13 Weretrying to save the earth 第三课时第三课时 教学设计教学设计 教材分析 本单元带领学生了解了一些有关地球污染，动物濒危等问题。并且教给大 家如何保护濒危动物，如何通过回收利用等方式来保护地球。本单元分 section A and section B 两个部分。本课为第三课时，带领大家了解我们能为地球做些 什么。 一、教学目标 (一) 知识与技能 1. To learn the following words and expressions 2. Writing在日常生活中，我们可以看见各种污染现象，作为中学生，我们应 该如何保护环境？ (二) 过
2、程和方法 3. To get a general knowledge of pollution by reading and role-play. 4. To know about how to reduce pollution through discussion. (三) 情感态度和价值观 5. After learning this part, every student will be aware of the serious situation of pollution and determined to take action to protect our earth from n
3、ow on. 二、 教学重难点 1. To know the following words: gate, bottle, president, ,metal, put to good use,set up, known for, pull down, not onlybut also 等 2. 写作：作为中学生，我们应该如何保护环境？ 三、 教学策略 根据本课教学目标和重点内容，教师可采用听，读，小组讨论，角色扮演等活 动来引导学生进行学习。 四、 教学准备 ppt 五、 教学环节 Step 1 Lead-in Free talk about the weather and environm
4、ent. (设计意图：引出本课教学目标) Step 2 出示 Teaching Aims：Writing 在日常生活中，我们可以看见各种污染现象，作为中学生，我们应该如何 保护环境？ Step 3 观看视频环境污染，提出环境有哪些污染，例如：air pollution, water pollution, noise pollution, white pollution,etc。 （设计意图：让学生更进一步了解地球环境有多严重。完成写作第一段。） Step 4 面对如此严重的污染，我们应该怎么做（What should we do）？ Topic: Protecting the Environm
5、ent How can we protect the environment? (利用 ppt 出示图片,学习基本句型) We should 1. plant more trees 2. save water 3. turn off the lights when we leave the room We shouldnt 1. cut down trees 2. waste water 3. drop litter everywhere 4. use plastic bags Step 5 拓展 How can we protect the environment? Besides abov
6、e the sentences ,what other things should you do? (设计意图：新旧知识结合，体现了教师在课堂上只是引导者。) Step 6 口头作文。 保护环境, 人人有责。作为中学生，我们应该做些什么呢？ 用 4-5句话完成一篇作文。提示词：We had betterWe are supposed to First Second Third (设计意图：根据上一项的句型，完成写作的第二段落。) Step 7 教师给出 writing tips 和范文 writing tips: 善于运用连词，使文章逻辑结构紧密，层次分明，条理清楚善于运用连词，使文章逻辑结构
7、紧密，层次分明，条理清楚.学学 生做记录。生做记录。（设计意图：教授学习方法） 范文： As students, we should try our best to protect the environment. First, we should plant more trees. Second, we are supposed to save water. Third, its best to go to school on foot. Besides, we had better turn off the lights when we leave the room. （设计意图：规范写作
8、，纠正单词、短语及句型） Step 8 Do some exercises 通过归纳练习，教授写作方法，学生做记录。 一、根据汉语，完成句子 1.保护环境是我们的责任。 _protect the environment. 2.我们应该尽我们最大努力让城市越来越干净。 We should _ to make our city _. 3. 他们经常捡起地上的垃圾, 并为自己的这种行为而自豪。 They often _ the litter on the floor and_their own behavior. Writing tips ：注意积累与写作话题有关的典型句型和：注意积累与写作话题有关
9、的典型句型和 常见短语。常见短语。 二、Correct the mistakes 1. Mr. Green is a cleaner, she cleans the street. 2. Just now, he did homework and take out the trash. 3. In the future, there will have less cars and more trees. 4.My hometown is a interesting place. I very like it. 5. They by bike to school. Writing tips ：注
10、意人称，时态，冠词等语法，避免中式英语（：注意人称，时态，冠词等语法，避免中式英语（Chinglish ）。）。 三、同义句转换 1. We should protect the environment. We _ _ _ protect the environment. 2. He usually walks to school . He usually _ _school _ _. 3. We must look after the trees and flowers well. We must _ _ _ _the trees and flowers. 4. It took me an
11、hour to wash the clothes by hand. I _an hour _the clothes by hand. Writing tips ：善用同义词，同义短语，避免文章单调乏味。：善用同义词，同义短语，避免文章单调乏味。 Step 9 Summary 让学生总结 Writing tips。 （设计意图：检查听课效果，完成教学目标） Step 10 Homework(设计意图：写一篇与本课教学内容相关的写作。) 随着全球环境的恶化，越来越多的人选择过“低碳生活”（low-carbon life)，即减少二氧化碳的排放，低能量，低消耗的生活。请根据表格中的内容， 以 How
12、 to Live a Low-carbon Life 为题，用英语写一段 80词左右的文章。内容 必须包括以下要点： How to Live a Low-carbon Life In order to protect the environment, more and more people choose to live a low- carbon life. As students, first, we should_ _ On the other hand, we shouldnt do a lot of things. _ _ _ In a word,_ _ Step 11 板书设计 How can we protect the environment? 1. Problem: air pollution, water pollution, noise pollution, white pollution,etc。 2. What should we do? How can we protect the environment? 3.结束语： All these small things would make a big difference and help improve the environment. （设计意图：展现本课的写作提纲。）
