题目内容：

Zoo animals VS animals in the wild

Zoo animals usually live longer than their wild counterparts. This is because they have access to medical care and better nutrition in zoos. Moreover, there is a lack of predators(捕食者). 1.Elderly wild animals lose their strength, ability to find and digest food and often lose their social standing in their species social structure. Zoos are learning how to care for old animals.

Boredom is a big problem for animals in zoos and something animals in the wild do not have to face. Animal experts believe that a small place produces boredom. 2.They also provide companions and hide pieces of food so the animals have to search for it as in the wild.

3. A case in point is the Asiatic wild horse. The species was hunted to extinction in the wild by 1969. The entire world population now lives in zoos and nature preserves. The largest population is kept at the National Zoo in Washington. D.C. All of those animals were zoo-born.

Animals living in the wild may come into contact with people. The animals may hunt livestock(家畜)or eat farmers’ crops. 4.In good zoos, people can see that these animals are not just able to make trouble, but lead complex lives. This can help people save the animal and the habitat needed to keep the animal alive in the wild.

Animals often reproduce better when they are in the wild. 5. One of the remarkable examples is the female giant panda. Using artificial(人工的) means has helped raise the worldwide panda population. Also, by trying to recreate the animal’s natural living condition as mush as possible, zoo animals will breed.

A．The goals of zoos have changed.

B．However, some animals are an exception

C．As a result, they are considered harmful and are hunted.

D．If they live in the wild, they have to battle against them.

E．Even so, it often leaves one to wonder if the animals live well.

F．For some species, living in zoos is the only way the species can survive.

G．So good zoos have replaced all metal cages for those animals that used to live in large areas.