英语人教版新课标必修3unit 4第2--6课时整体
教案 second period extensive reading read and then describe the three ways in which gravity changed for li yanping and how his weight changed. 1. the pull of gravity became very strong she left the earth’s atmosphere. his weight is normal. 2. it disappeared when he was in space. he is weightless. 3. it was very light when he was on the moon. he weighs less than on earth.
