[答案]
(1)at17.(2)atest.(3)Yes.(4)themostmemorable.(5)BeingfullyimmersedinaFrench﹣speakingenvironment.
[解析]
(1)at 17.细节理解题。根据As a 17﹣year﹣old girl!作为一个17岁的女孩!可知作者在17岁时开始了独自坐飞机的经历。
(2)a test.细节理解题。根据all of us students were given a test to determine(测定) our language level.我们所有的学生都接受了一次测试。故答案为a test。
(3)Yes.细节判断题。根据Though I couldn't understand most of it at the very beginning,但整个经历令人兴奋。可知作者觉得很兴奋和新鲜。
(4)the most memorable.细节理解题。根据The most memorable of our trip was a visit to historic Quebec City.我们这次旅行最难忘的是参观了历史悠久的魁北克市。故答案为the most memorable。
(5)Being fully immersed in a French﹣speaking environment.细节理解题。根据Being fully immersed(沉浸) in a French﹣speaking environment was a valuable learning experience.完全沉浸在讲法语的环境中是一次宝贵的学习经历。故答案为Being fully immersed in a French﹣speaking environment。
[点评]
本题考查了"人与社会   细节理解   ",属于"易错题",熟悉题型是解题的关键。