3、estedin…对.......感兴趣19.dosth.onone’sown独立做某事20.worryabout为...而担忧21.dependon=relyon依赖;取决于二.重点句型1.Whataboutdoingsth?例:Whataboutlisteningtotapes?2.by的用法a.介词 prep. (指交通等)乘;例:The man came by bus. 那人是坐公共汽车来的。They went to Shanghai by plane. 他们坐飞机去上海。b.表示做某