英语必修2译林牛津版unit1
学案（第6-7课时） periods 6---7 word power aims: ⅰ. learn some terms for space exploration. ⅱ. learn the remaining words in this unit. teaching procedures: i. lead-in: since we are all interested in out space. today we are going to learn some terms for space exploration. ⅱ. read part a
