A Draw and write（为学校设计三个常用的标志牌，然后写一写它们的含义）

1. First drawn sign: A picture of a person walking, with a slant line across it (表示禁止行走的区域，常用于如草坪等地方). Text below: "No walking on the grass."
2. Second drawn sign: A picture of a book with a hand putting it away. (表示学校图书馆内要保持安静). Text below: "Keep quiet in the library."
3. Third drawn sign: A picture of a lunchbox with a slant line across it. (表示禁止饮食). Text below: "No eating in the classroom."

翻译:
A 画图并写作（为学校设计三个常用的标志牌，然后写一写它们的含义）

B Ask and answer（根据提示与同学互相问答，了解他们设计了什么标志牌）
S1: What does this sign mean?
S2: It means...
S1: Where can we put it?
S2: We can put it...
S1: Why?
S2: Because...

S1: What does this sign mean?
S2: It means "No littering".
S1: Where can we put it?
S2: We can put it in the park.
S1: Why?
S2: Because people may litter there.
S1: What does this sign mean?
S2: It means "No smoking".
S1: Where can we put it?
S2: We can put it in the library.
S1: Why?
S2: Because smoking is bad for others.
S1: What does this sign mean?
S2: It means "Keep quiet".
S1: Where can we put it?
S2: We can put it in the classroom.
S1: Why?
S2: Because students need a quiet place to study.

翻译:
B 问答（根据提示与同学互相问答，了解他们设计了什么标志牌）
学生1：这个标志牌是什么意思？
学生2：它的意思是……
学生1：我们可以把它放在哪里？
学生2：我们可以把它放在……
学生1：为什么？
学生2：因为……

C Think and write（想一想，根据提示写一写某位同学设计的一个标志牌）
Look at the sign. There is/are on it.
It means .
We can put it .
We put it there, because .

Look at the sign. There is a picture and the word "Quiet" on it.
It means we should keep our voices down (or be quiet).
We can put it in the library (or in the hospital, etc.).
We put it there, because people need a quiet environment there.