上册 Unit 1 Will people have robots? 重点语法：一般将来时态的应用 Unit 2 What should I do? 重点语法：过去将来时态（将来时态的委婉说法） Unit 3 What were you doing when the UFO arrived? 重点语法：过去进行时态 Unit 4 He said I wa..。
精品英语课程 更多英语资料
