Unit 7 What’s the highest mountain in the world?

重点知识园地重点单词1.tour n.&v.旅行;旅游My brother has just left Sydney for a tour of the world.我哥哥刚离开悉尼去周游世界。We tour by car every summer.每年夏天我们都驾车旅行。拓展touristn.旅行者;观光者,2.protect v.保护;防护protect...from/against...保护……免遭……A purple headscarf protected her from/against the wind.一条紫色头巾为她挡风。