1、1 （1）Words and expressions: pollution, pour into, waste water, sore eyes / a pain in the eyes, cant sleep well at night, go deaf, lose ones hearing / have hearing loss, high blood pressure, chemical factory, make/produce much noise, throw litter around, plastic bags （2）may causepollution.does harm t
2、o / is harmful to. It can make. （3）Structures for giving suggestions: should/shouldnt, must/mustnt, had better / had better not, can/cant, ought to / oughtnt to . （4）Useful expressions for the beginning, body, and ending parts of a passage. 1. Ability aims: (1) Students will improve the writing skil
3、ls by using mind maps. (2) Students will also improve the skills of speaking by talking about the causes and harms, as well as how to prevent different kinds of pollution. 2. Emotional aims: （1）Students will learn that the environment around us is becoming worse and worse, and its our duty to save t
4、he earth, our only home. （2）Students will also learn to solve problems by cooperating with others. . Teaching important and difficult points: 1. Important points: Review of the expressions related to environmental protection. 2. Difficult points: How to write a passage about environmental protection
5、 with the help of a mind map. . Teaching aids: multi-media, a mind map, task lists, the blackboard and some chalk . Teaching procedures: StepsContentsMy design Step 1. Getting ready for learning 1. Greetings. 2. Enjoy a clip of video about a swan and an elephant trying to clean the rubbish that we h
6、umans threw about, and lead out toadys lesson. 3. Daily report: a student report the common pollution in our daily life to the whole class, and then ask the other students how many kinds of pollution were mentioned. 1. 通过课前问候增进师生 情感，并调整学生学习状态。 2. 通过欣赏天鹅与大象清 理垃圾的短片，使学生意识到环 境问题的严重性，并导出今天的 课题：拯救地球。 3.
7、通过一名同学关于污染 的“每日报告” ，使学生意识到 污染问题就在我们身边，与每个 人都息息相关。 Step 2. Review 1.Review the phrases related to different kinds of pollution. 2.Talk about the causes and harms of the pollution. 3.Group work: work in groups of six to discuss how to prevent the pollution, and write them on the task 1.通过复习与污染有关的词 组，各
8、种污染的起因及危 害，既锻炼了学生说的能 力，又为后面的写作做好铺 垫。 2.通过小组协作就抽中的污 染问题讨论解决措施，并写 在学习任务单上， 时间到 2 list. Then ask the group leaders to present their ideas to the whole class by using as many structures as possible. 后由小组长向全班同学汇 报小组意见，加强了学生的 合作意识。 Step 3. Pre-writing 1. Show todays writing about how to protect the enviro
9、nment on the screen, and guide the students what to do before writing: read the instructions carefully; determine the styles and tenses of the writing; make an outline. 2. Use a mind map to generalize the beginning, body, and ending parts of the writing. 3. Ask students to brainstorm the useful expr
10、essions for different parts of the writing, and show them on the screen. 4. Remind the students of their handwriting. 1.在大屏幕上展现本节课要 完成的环保主题的作 文，并指导学生“写前 三部曲” ：审、定、列。 2.使用思维导图使学生清晰 作文的结构，以及每个 部分该包括的内容。 3.头脑风暴本篇作文开头、主 干、结尾部分分别可用 的表达，使得文章承接 自然。 4.提醒学生写作时要注意书 写规范，使得文章锦上 添花。 Step 4. While-writing Ask stu
11、dents to write the passage on the task list by themselves. 学生独立完成写作， 锻炼他们的 写作能力。 Step 5. Post-writing 1. Ask some students to present their passages to the whole class, and guide the others to make comments. 2.Sum up how to write well. 1. 邀请一些同学展示他们的作 文，并做出评价，其他同学可对 照着找出自己作文中的不足之 处。 2. 总结如何写好一篇英语作文。
12、 Step 6. Homework 1.Work in groups of six, and correct each others passages. Choose the good expressions to recompose （重组） a new passage on how to protect the environment.（必做） 2.Search the Internet for the information about measures to protect the environment taken by other countries.（选做） 1. 小组协作，互改作文，并从中 挑选出好词好句重组为另一篇 作文，这不仅进一步加强了学生 的合作意识，而且能让他们明白 “三人行，必有我师焉；择其善 者而从之，其不善者而改之”的 道理。 2. 作业分为选做与必做， 满足不 同程度学生的需要。 Blackboard design: Writing Saving the Earth Mind Map 3 教后反思：教后反思： causes harms measures pollution
