帮我设置4个问题和选项（供高二的学生英语阅读理解）

Dog Talk: Life in a Dog-Eat-Dog world
Most dogs in the United States seem to have an easy life. They sleep a lot and get fed often. People take their dogs for a walk two times a day and also let them play outside. Dogs get medical care when they are sick or injured. What a great life! Right? Well, we say people with a similar, carefree existence enjoy a dog's life. They have no troubles or responsibilities. They can come and go as they please, sleep all day, and never have to work.
But not everyone has it so easy. In fact, some people say we live in a dog-eat-dog world. That means many people are competing for the same things, like good jobs. 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.
Still, people say every dog has its day. This means that every person enjoys a successful peri

1. What’s the main idea of this article?
A. The lives of dogs live in different part of the world.
B. Crazy dogs eat each other worldwide.
C. The dog expressions we used in daily life.
D. The cruel competition of human-being

2. What does the expression “to rain cats and dogs” mean?
A. Cats and dogs fall from the sky
B. The hottest days of the year
C. Someone is angry
D. Heavy rain

3. In which situation can you use the expression “dog-eat-dog” ?
A. When you feel do not like to learn new things
B. When someone enjoys a successful period during his or her life
C. When someone is sick
D. When you are trying to get a job

4. Which statement is not true?
A. Only dogs live in America enjoys their lives
B. If you want to live better, you have to work like a dog
C. Dog expressions can describe not only the weather but also a situation
D. Dog tired can be used to describe people.