题目内容：

Can dogs and cats get along well in the same home? People who are thinking about getting a dog as a friend for their cat are worried that they will fight. A recent research has found that if the cat is taken back home before the dog, and if they are introduced when still young (less than 6 months for cats, a year for dogs), it is highly probable that the two pets will get along swimmingly. In two-thirds of the homes cats and dogs have a good relationship.

However, it wasn’t all sweetness and light. There was a reported coldness between the cat and dog in 25% of the homes, while aggression(侵略，好斗) and fighting were found in 10% of the homes. One reason for this is probably that some of their body languages are just different. For example, when a cat turns its head away it means aggression, while a dog doing the same means submission(顺从).

In homes with cats and dogs living peacefully, researchers found a surprising behavior. They are learning how to talk each other’s language. It is a surprise that cats can learn how to talk “Dog”, and dogs can learn how to talk “Cat”.

What’s interesting is that both cats and dogs have appeared to become smarter. They can learn to read each other’s body languages, suggesting that the two may have more in common than was expected. Once familiar with each other’s body language, cats and dogs can play together, and enjoy sleeping together on the sofa.

The importance of this research on cats and dogs may go beyond pets — to people who don’t get along well, including neighbors, colleagues at work, and even countries. If cats and dogs can learn to get along, surely people have a good chance.

1.Some cats and dogs may fight when ________.

A. they are cold to each other

B. they look away from each other

C. they misunderstand each other’s body languages

D. they are introduced at an early age

2.What is found surprising about cats and dogs?

A. They eat and sleep together.

B. They watch each other’s behaviors.

C. They learn to speak each other’s language.

D. They know something from each other’s voices.

3.It is suggested in Paragraph 4 that cats and dogs ________.

A. have common interests

B. are less different than was thought

C. have a common body language

D. are not so smart as was expected

4.What can we human beings learn from cats and dogs?

A. We should learn to get along well with others.

B. We should know more about animals.

C. We should live in peace with animals.

D. We should learn more body languages.