bite.

　　Dog expressions are also used to describe the weather. The dog days of summer are the hottest days of the year. A rainstorm may cool the weather. But we do not want it to rain too hard. __5__．

　　A．We do not want it to rain cats and dogs

　　B．Still, people say every dog has its day

　　C．Some people are compared to dogs in bad ways

　　D．There are many other expressions waiting for you to explore

　　E. Dogs are their best friends and they are loyal (忠诚的)to people

　　F. That means many people are competing for the same things, like good jobs

　　G. They take their dogs for walks, let them play outside and give them good food and medical care

　　答案与解析

　　1．G　根据语境可知，此句通过举例解释了前一句话"美国人很喜欢狗并且对待狗很好"。故选G。

　　2．F　根据语境可知，当人们说这是"一个狗吃狗的社会"时，即表示这是一个人吃人的世界，用这个短语来描述人们为了一些事情不择手段，表现了社会竞争的残酷性。故选F。

3．B　根据后面几句话可知，此处为形容每个人都有万事顺利得意的时期。"every dog has its day"表示"凡人皆有得意日，凡人都有出头天"。故选B。