约2270字。

　　仁爱版九年级上Unit 4
　　Topic 3  I don’t think aliens can be found in space.
　　Section D
　　The main activities are 1a and 4. 本课重点活动是1a和4。
　　Ⅰ. Teaching aims and demands
　　1. Learn some new words and a phrase:
　　beyond, separate, hand in
　　2. Review the use of “modal verb + be + P.P.”
　　3. Talt our planet and living things on other planets.
　　Ⅱ. Teaching aids 教具
　　多媒体课件/教学挂图/录音机/幻灯片
　　Ⅲ. Five-finger Teaching Plan
　　Step 1  Review
　　通过图片造句，复习本单元重点语法项目——含有情态动词的被动语态，然后通过判断句子正误的方式巩固Section C，导入新课。
　　1. (多媒体展示一些图片，学生们根据图片内容造句，该句子必须是“情态动词+被动语态结构”，复习本单元语法。)
　　T:  Hello! Boys and girls, in this topic we have learned a new grammar, the passive voice with modal verbs. Now, let’s look at the screen. Make some sentences according to the pictures. Please remember that you should use “modal verb + be + P.P.” Do you understand?
　　Ss: Yes.
　　T:  (多媒体呈现一个很脏的教室。) Here is a classroom. S1, can you make a sentence?
　　S1: Yes. The classroom should be cleaned every day.
　　T:  Good. Let’s look at next one. (呈现一幅环境污染图片。) S2, please?
　　S2: The environment must be protected by us.
　　T:  Excellent. Next one. (呈现一辆坏了的自行车。) S3, you please!
　　S3: The bild be repaired.
　　T:  Good. Next.(展现一幅小孩用脏兮兮的手在吃苹果的图片。) Who can make a sentence?
　　S4, can you?
　　S4: Her hands should be washed before eating apples.
　　T:  Right. Let’s look at next one. (呈现一片被砍伐的树林。)
　　S5: The trees shouldn’t be cut down by people.
　　T:  OK, next. (展现科学家们正在认真做研究的图片。)
　　S6: Scientific research must be done carefully.
　　T:  You did very well. Have you mastered the new grammar?
　　SS: Yes.
　　2. (多媒体制作一个动漫的声音。让学生判断波利说的上一节课学过的关于火星的内容是否正确。激发学生的兴趣，达到复习的目的。)
　　T: Boys and girls. We’ve learned something about Mars. Do you still remember?