Mr Black has two cats. One is big and the other is small. He likes them very much. One day his friend Mr Green comes to see him. He is very surprised. He finds there are two holes in the door, a big hole and a small one. He says,\"My dear friend, why are there two holes in your door?\" \"To let them in and out.\"Mr Black answers.\"But why are there two holes?\" asks his friend. \"How can the big cat go through the small hole?\" he says.
布莱克先生养了两只猫。一个是大的，另一个是小的，他很喜欢它们。一天，他的朋友格林先生来看他，他很惊讶，他发现门上有两个洞，一个大的和一个小的。他说，“我亲爱的朋友，为什么你的门上有两个洞？”\"让两只猫进出啊。\"布莱克先生回答。\"但为什么有两个洞？\"他的朋友问。\"那只大猫怎么能穿过那个小洞呢？\"布莱克先生说。
二、课后练习三、参考答案Ⅰ. F F T F
Ⅱ. B A C D
Ⅲ.
two holes
Mr Black
One the other
small hole