lessson2 protecting the sea重点短语(1) fill out 填充（表格）；打发时间，消磨时光(2) on one’s own = alone = by oneself 独自(3) keep … in mind 牢记…… (4) for fun 为了娱乐 (5) be/get into trouble 陷入麻烦或困境 (6) make it to
高一英语必修3第二单元第3课时导学单