1、1.学生自学生词，并记住单词拼写和拼读。2.预习课本，找出重点短语和句式。3.读、记后完成学案中自学导练作业。Step 1完成教材Activities 19的任务1.Make new words. Join the parts of words in Box A with the words in Box B. (Activity 1)(1)教师可以先让学生总结以前学过的单词中的前缀和后缀，并适时给予帮助。(2)学生个体完成练习。全班核对答案。 (3)教师可以将学生分成若干组，利用多媒体课件开展猜词活动。答案：1.careful 2.collectable 3.hopeful 4.hopele
2、ss 5.impossible 6.unusual 7.useless 8.reuse 9.unwanted 10.wasteful）2.Complete the sentences with the words in the box. (Activity 2)(1)学生个体活动，完成填空。同伴核对。(2)让学生写出更多的例词，并能够在句子中正确使用。例如:appear, disappearDavid watched her car until it disappeared from view.use,useful,uselessThe book is full of useful infor
3、mation.Dont throw things away unless they are completely useless. 3.Complete the table. (Activity 3)(1)学生个体完成，全班核对。(2)学生自己总结规律，教师帮助归纳。4.Complete the sentences with the correct form of the words in Activity 3. (Activity 4)学生个体或两人一组完成。全班核对。常规操作。（如果学生能力较强，教师可以给出一些合成词，让学生给出英文解释，进一步提高学生的英语表达能力。6.Work in
4、pairs. Look at the pictures and answer the questions. (Activity 6)7.Complete the conversation with the correct form of the expressions in the box. (Activity 7)(1)学生个体活动，熟悉方框中的短语。(2)学生阅读短文，根据上下文将短语填入语篇中，注意形式的变化。(3)学生再次通读全篇，检查所填短语是否合适。(4)同伴核对答案。然后全班核对答案。（答案：1.worried about 2.throw away 3.turn off 4.ar
5、e good for）8.Listen and check () the true sentences. (Activity 8)(1)学生个体活动，试着判断句子的对错。(2)学生听录音，检査答案。9.Listen again and complete the table. (Activity 9)(1)学生再次听短文，获取细节信息并填空。(2)全班核对答案，在核对答案的过程中，要求学生说明使用连词的理由。Step 2小结训练用所给单词的适当形式填空。1.Polluted (pollute) air is not healthy.2.It is impossible (possible) to
6、 see the famous star at once.He is very busy.3.Its wasteful (waste) for you to throw the food.4.Strong light does harm (harmful) to our eyes.5.Its hopeful (hope) to build a green school if we try our best (well).Step 3 Around the world阅读和欣赏短文。共享学生找到的环保类文章。Step 4完成教材Activities 1012的任务(1)小组活动，确定选题。(2)组内分工，利用各种资源査找所需信息,完成Activity 10。(3)小组成员各自谈论对选定问题的看法和治理措施,完成Activity 11。(4)组内整理讨论结果，向全班展示,完成Activity 12。Step 5家庭作业完成学案中的相关练习。本节课活动的目的是复习模块的语言知识，培养学生综合运用英语的能力,教育学生要保护环境。收到良好的效果。
