19．anxious adj.忧虑的，担心的→anxiously adv.忧虑地，担心地→anxiety n．忧虑，焦虑

　　20．accommodation n．住所，住处→accommodate vt.为......提供住处/工作场所

　　Ⅲ.补全短语

　　1．take off　　　　起飞

　　2．on the horizon 在地平线上

　　3．as well as 也；不但......而且......

　　4．have a shower 沐浴

　　5．think about 考虑

　　6．go down (日、月、星辰等)落到地平线下面，下沉

　　7．right now 就在此刻

　　8．differ from 与......不同

　　9．be anxious about ... 为......而忧虑

　　10．prefer to 宁愿

　　1．While on a hiking trip, our cooks prepare delicious meals.

　　在长途跋涉中，我们的厨师会准备美味可口的食物。

　　[句式分析]　while on a hiking trip为状语从句的省略形式，其完整结构为while we are on a hiking trip。

　　[佳句赏析]　他们东张西望，好像在寻找什么。

　　They were looking here and there as if in search of something.

　　2．(长难句分析) The food cooking on the fire smells great and while you are having a hot cup of tea, you relax and watch the sun go down.

　　烤在火上的食物正散发着诱人的香味，你喝着热茶，轻松地欣赏着太阳下山的美景。

　　[句式分析]　本句为and连接的并列句，在第一分句中，cooking on the fire为现在分词作定语修饰the food；第二分句中含while连接的时间状语从句。

　　1．What are you going to do when you are free?

　　I_want_to_explore_the_desert.

2．Look at the following pictures and match them with their names.