小题1:D
小题2:B
小题3:A
小题4:C
文章讲述的是对于外国游客到成都旅游时在乘车方面应当注意的问题
小题1:推理判断题，根据第三段If your card is based on the so called E-purse, you pay each time RMB 1.80 for the bus可知，可以节省0.2元。
小题2:推理判断题，根据倒数第二段Generally, Chengdu is a safe place but most of the thefts are occurring on buses, at train stations or crowded large area, like the shopping street Chunxi Road可知，车上是盗窃的高发地点、
小题3:事实细节题，根据最后一段Due to the fact that the place names are announced in Chinese, it is better to know the Chinese name of your destination可知，站点的播报都是用的汉语
小题4:推理判断题，根据文章最后一段可以判断出，这是为外国游客提出的建议