1. 阅读理解

    Dogsare friends of man. They work for us. They hunt with us. They also play withus. But a long time ago, all over the world, dogs werewild. Dogs can goback to the Stone Age. All dogs had the same ancestor (祖先). It is believed that this ancestor was much like a wolf. Otheranimals, like fox, also came from this ancestor. Thousands of years ago, manbegan to tame (驯服) the wild dogs. When the dogs weretamed, they were trained well. The strong dogs then became working animals.They were trained to pull heavy loads. They learned to keep watching over sheepand other animals. Working dogs could do other things too. Some dogs were notstrong. But they could help man hunt. Other dogs were best at being pets. Atfirst, there were only a few kinds of dogs. Today, there are more than 100 kinds.

1. （1） The word "wild" in the passage means "________".

   A . gentle B . strong C . fierce D . kind
3. （2） In the past, dogs were wild, but now, most dogs are.

   A . friendly to people B . angry with people C . unkind to people D . unfriendly to people
5. （3） From this passage, we know that____________.

   A . all the animals have the same ancestor B . all dogs are as wild as they were many years ago C . man has helped change dogs D . animals never change
7. （4） What jobs can dogs do?

   A . Keep watching over sheep. B . Hunt with man. C . Pull heavy loads. D . All the above.