阅读理解。 As we know, there are differences between western culture and Chinese culture. We can see differences when we pay attention to the words that are used. Let's look at the words about describing animals. Most phrases in Chinese about the dog. For example, 'a homeless dog', 'a running dog', and 'a dog catching a mouse', have negative meanings. But in western countries, dogs are considered honest and good friends of humans. In English, people use dogs to describe positive behavior. For example, 'You are lucky dog' means you are a lucky person.   And 'Every dog has its day' means _____. To describe a person's serious illness, they say 'sick as a dog'. The word 'dog-tired' means 'very tired'. The words about animals are used in positive or negative ways in different cultures. We can learn about many differences in cultures by comparing how certain words are used. 1. The correct Chinese meaning about 'a homeless dog' is '_____'. A. 猎犬 B. 看门狗 C. 丧家犬 D. 家养犬 2. In English ,people use dogs to describe positive behavior because _____. A. they have different culture B. they think dogs are honest and good friends of humans C. they like dogs very much D. dogs are very active 3. Which sentence is right to fill in the blank in the passage? A. every dog will die one day. B. each person has bad luck at times. C. each person has good luck at times. D. every dog has good luck at times. 4. Which of the following is NOT true according to the passage? A. In English people use the dog to describe positive behavior. B. Most phrases in Chinese about the dog have negative meaning. C. We should pay attention to the words about animals that are used. D. 'Sick as a dog' is used to describe a healthy person in western countries. 5. What 's the best title of the passage? A. Dogs. B. Western Culture. C. Chinese Culture. D. Different Countries Have Different Culture.