It is good to keep animals in zoos. Zoos are places for people to see many different kinds of animals from all over the world. Without zoos, most people would never see a real tiger or bear. Secondly, zoos look after the animals very well. The animals are always given food and cleaned on time. In the wild, it is not always possible for an animal to find food, so sometimes it goes hungry. Thirdly, zoos protect the animals. They offer them safe place to live in. In the wild, some kinds of animals are in danger of becoming extinct （灭绝).But zoos give these animals a chance to live. Without zoos, there would be fewer kinds of animals in the world.
However, some people think it is unnatural (非自然的) and unfair（不公平的） to keep wild（野生的） animals in cages. Most animals are kept in cages that are too small for them. The animals such as bears and tigers always look sad in cages. Wild animals should look for their own food. Anyone would not feel happy if he isn't allowed (允许) to go outside his home and animals don't like it either.
判断正误(正确T错误F)
小题1:If you don't go to a zoo, you can't see dogs.
小题2:In the zoos, all animals are happy.
小题3:In the wild, animals look for their own food.
小题4:According to（根据) the last sentence, we can say animals like to stay in the cages.
小题5:The writer is not sure whether it is better for animals to stay in Zoos.
血液中的酒精含量< 80mg/100mL
80mg/l00mL
