题型：任务型阅读 题类：常考题 难易度：普通
人教版（新课程标准）高中英语必修四Unit 3 A taste of English humour单元训练卷一
Americans use many expressions with the word "dog". People in the United States love their dogs and treat them well. However, dogs without owners to care for them lead a different kind of life. The expression, to lead a dog's life, describes a person who has an unhappy existence.
Some people say we live in a dog-eat-dog world. They say that to be successful, a person has to work like a dog. This means they have to work very, very hard. Such hard work can make people dog-tired. And, the situation would be even worse if they became sick as a dog.
This means that every person enjoys a successful period during his or her life. To be successful, people often have to learn new skills. Yet, some people say that you can never teach an old dog new tricks. They believe that older people do not like to learn new things and will not change the way they do things.
People who are unkind or uncaring can be described as meaner than a junkyard dog. Junkyard dogs live in places where people throw away things they do not want. Mean dogs are often used to guard this property. They bark or attack people who try to enter the property. However, sometimes a person who appears to be mean and threatening is really not so bad. We say his bark is worse than his 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.
A. Some people are compared to dogs in bad ways.
B. Dogs are people's loyal friends all the time.
C. Still, people say every dog has its day.
D. They take their dogs for walks, let them play outside and give them nice meals.
E. That means many people are competing for the same things, like good jobs.
F. Sometimes, morning rain can light up the day.
G. We do not want it to rain cats and dogs.
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