约2000字。

　　仁爱版九年级上Unit 4
　　Topic 3  I don’t think aliens can be found in space.
　　Section B
　　The main activities are 1a and 3. 本课重点活动是1a和3。
　　Ⅰ. Teaching aims and demands 教学目标
　　1. Learn some new words and a phrase:
　　basic, coach, be based on
　　2. Learn a useful sentence:
　　Sometimes I want to be a dancer, but I think I’m going to be a scientist in the future.
　　3. Consolidate the use of modal verb+be+P.P.:
　　(1) I believe more and more things will be discovered in the future.
　　(2) The watch should be repaired first.
　　(3) The trees should be watered at once.
　　4. Talt flying to Mars and the outer space.
　　Ⅱ. Teaching aids 教具
　　录音机/小黑板/音乐磁带/录音机
　　Ⅲ. Five-finger Teaching Plan
　　Step 1  Review
　　复习含有情态动词的被动语态，并呈现部分生词，导入新课。
　　1. (以男、女两组竞赛的方式复习含有情态动词的被动语态。由教师说出一个动词，同学们用这个动词去造一个含有情态动词的被动语态的句子。看哪组说得又快又准确。)
　　T: OK. Let’s have a competition between boys and girls. I say a verb, and you make a sentence with this verb. You must use “modal verb+be+past participle”. Do you understand?
　　Ss: Yes.
　　T: For example. I say“water”. You should say it like this:“The flowers must be watered every day. ”OK, let’s begin. Protect.
　　Girls: Our environment should be protected well.
　　T: Clean.
　　Boys: The blackboard must be cleaned after class.
　　T: Look after well.
　　Girls: The young trees should be looked after well.
　　T: Speak.
　　Girls: English should be spoken in our English class.
　　T: Plant.
　　Boys: More and more trees should be planted.
　　T: Invent.
　　Girls: Many useful things will be invented in the future.
　　T: Excellent. You did very well. Girls did better than boys. Congratul