信号灯设计中，常用颜色编码事表示某种含义和提高可辨性，其中（）表示禁止、停止、危险警

Come and see the Indian elephants and the new tigers from north-east of China.The beautiful birds from England are ready to sing songs for you, and the monkeys from Mount Emei will be happy to talk to you. The lovely dogs from Australia want to laugh at you. Sichuan pandas will play balls for you. The giraffes from Africa(非洲) are waiting to look down on you.

Tickets                                   Opening time except Friday Grown-ups : ¥3                           9.00 a.m.~ 4.00 p.m. Children : over 1.4 m : ¥2                   Friday under 1.4 m : Free                 10.00 a.m.~3.00 p.m.

Keep the zoo clean!
Do not touch, give food or go near to the animals.
小题1:How much does Mr Smith have to pay if he visits the zoo with his son of three?

A．¥3

B．¥4

C．¥5

D．¥6

小题2:At which of the following time can we visit the zoo?

A．8.30 a.m. Wednesday	B．9.30 a.m. Friday
C．3.00 p.m. Sunday	D．5.00 p.m. Tuesday

小题3:Which of the following can we do in the zoo?

A．To touch the monkeys.

B．To give some food to the animals.

C．To go near to the tigers.

D．To watch the animals carefully.