Unit one
Public signs
公共   标志
his cousin  他堂（表）弟兄
ask some questions about them问关于他们一些问题
a lot of questions 许多问题
They mean different things.它们意指不一样事情
four years old  四岁
public signs 公共标志


stay away from 远离
waIk on the grass在草地上走

on the birds’ cage 在鸟笼上
make noise 发出（喧闹）声音
know a lot about public signs知道许多关于公共标志
There are a lot of signs here.这儿有许多标志