unit 1 lifestyles lesson 3 a volunteer teacher 建议用时 满分 实际用时 得分 错题档案 45分钟 60分 i. 单词拼写（共10小题；每小题1分，满分10分） 1. tom was a v during the 29th olympic games. 2. after g , he entered a big company as a worker. 3. it's a big c to climb mountains over 5，000 meters. 4. the persons who are for his opi
