A Dog
A dog is a kind of animal,It often lives with people at home,lt's one of the pet animals.
Many people like to keep a dog for pleasure because it's clever and it can understand them.People feed the dog and build a house for it.Dogs can do lots of things for people.
In cities,people keep a dog not only for pleasure but also for safety.A dog can be a good guard.
In the country,farmers like to keep dogs for pleasure too.Besides,some of the dogs can help farmers to look after animals,such as sheep and pigs.
Dogs can be a great help to army soldiers and policemen.They of-ten do important work for them.
So dogs are really our good friends,and we must take good care of them.
参考译文：
狗
狗常常和人生活在一起,它是人们的宠物。
许多人都喜欢养只狗解闷儿，因为狗通人性。 人们喂养狗。还给狗做窝。狗能给人类做许多事情。
城市里的人养狗不仅是为了开心，而且是出于安全之故。狗可以成为人们的好"保镖"。
在乡下，农民也把养狗作为乐事。此外，有些狗还能帮主人看护动物，如猪、羊。
狗对士兵警察也很有帮助，它们经常帮他们完成重要任务。
因此，狗的确是人类的好朋友，我们必须爱护并保护好它们。