Unit2 Ways to go to school 一、重点单词和短语 on foot= walk,走路 by bus =take a bus 乘公交车 by plane乘飞机 by taxi 乘出租车 by ship乘船 by subway 乘地铁 by train乘火车 by bike骑自行车 by ferry乘轮渡 Hooray!好极了 slow down 慢下来 ...