Unit 1
一 词组和日常用语
No smoking 禁止吸烟
No littering 禁止乱扔杂物
No parking 禁止停车
Do not touch 禁止触摸
Danger! 危险
No eating or drinking 禁止吃喝
keep off the grass 禁止践踏草坪
Be quiet 保持安静
keep quiet保持安静
his cousin 他的表弟
on the wall在墙上
go in入内
a lot of questions许多问题
ask sb. some questions about sth.
问某人一些有关某事的问题
only four years old仅仅四岁
a lot of public signs许多公共标志
mean different things意味着不同的意思
walk on the grass在草地上走
make noise发出喧闹的声音
know a lot about public signs
知道许多有关公共标志的知识
the sign on the birds’ c