01背景预习Background
前情提要一位顾客走进 Adventure Tours 探险旅行社，想报一个带探险运动的旅行团，业务员一口气向他推荐了好几个招牌项目。基本词汇预热adventure sports (探险运动) / book (预订) / tour (旅行团) / instructor (教练) / package (套餐)
Adventure Sports
Intermediate
Adventure Travel
Booking A Tour
Outdoor Activities