Unit 5 Humans and nature单元新知（课件+学案，共4份）高中英语 北师大版（2019）必修 第二册

LESSON 1　A SEA STORY 1.go in the direction of the whirlpool　 朝着旋涡的方向前进 2.tie myself to a barrel to help me float 把我自己绑在一个木桶上帮助我漂浮 3.on file 存档；记录下来备查 4.a gradual descent 缓坡 5.tidal flow 潮汐流 6.break my body and soul 伤害我的身心 7.the steel tube 钢管 1.wave n.海浪；波涛 As waves touched them， they seemed to be fl...