8.9
noun //名词adjective //形容词verb //动词famous //著名的manner //礼貌achievement //成就ride //骑repair //修catch //赶上experience //事迹，具体的经历；经验as a boy //在他小时候solve problem //解决问题ability //能力research //研究of his own //他自己的own //自己的，特有的lifestyle //生活方式spare parts //零件twenty //二十改y为i加estwenties //二十多岁in the 1980s //在20世纪80年代at lunchtime //在午饭时间everywhere //到处，每个地方what were you doing //你（过去某个时间点）在做什么
used to do .... //过去经常做某事 ...
be used to doing //习惯于做某事be used to do sth. //被用来做某事，use 是’使用‘之意
Is is +名词 +to do sth.
形式主语