Topic 3 I dont think aliens can be found in space.Section AThe main activities are 1a and 2a. 本课重点活动是1a和2a。. Teaching aims and demands 教学目标1. Learn a new word:research2. Learn some useful sentences:(1) What fun!(2) I wont believe there are aliens until I see them with my own eyes.3. Learn the use of modal verb+be+P.P.: (1) We will be able to do anything that can be done on the earth. (2) But I dont think aliens can be found in space.4. Talk about flying to Mars, th
