Along with the development of scientific research, more and more animals, such as mouse, dog, are used in the experiments to survey the nature of human beings. As we human beings are evolved from the primate, the studying of animals can definitely help us to learn our physical functions. However, we should recognize that animals are animals. They are different from humans in many aspects and the study of animals for the aim of human research should be limited.
According to Darwin's evolution theory, we human beings and others primate animals, such as monkey, ape are relatives. We can even say that human is a kind of animal in the nature. Comparing with some animals, we do not only have many same physical organs, but also with a lot of common behaviors and emotions. Take monkey for example, if you observe them carefully, you may learn that their face expressions are very like our human beings'. They can laugh, or cry as what we would do in the same situations. Therefore, it is absolutely a possible approach to learn human nature by the research of animals.
Nevertheless, we have to admit that in the process of evolution, human has gained a large number of advanced organs and skills. We can not learn ourselves only by the experiments on animals. For instance, human's brain is the largest and most complex one in all species. We can not learn all of the human brain’s characters by using animals. What is more, many medicines which have been applied in the animals can not be directly used in human body in that it may cause unforeseeable effects.
Furthermore, to the animal protectors, there should be ethic principles to save animals from being easily killed in the experiments. Animals have the right to survive as well. While in the development of scientific research, too many animals have lost their life. For the animal protectors, it remains a question whether the study of animals is the only way to know our humans.
To sum up, we human beings do relate to the animals, while we are not the same in every aspect. The utilization of animals to learn human nature should be maintained in a reasonable state.
Along with the development of scientific research, more and more animals, such as mouse, dog, are used in the experiments to survey the nature of human beings. As we human beings are evolved from the primate, the studying of animals can definitely help us to learn our physical functions. However, we should recognize that animals are animals. They are different from humans in many aspects and the study of animals for the aim of human research should be limited.
According to Darwin's evolution theory, we human beings and others primate animals, such as monkey,(monkeys) apes, are relatives. We can even say that human is a kind of animal in the nature. Comparing with some animals, we do not only have many same physical organs, but also with a lot of common behaviors and emotions. Take monkey for example, if you observe them carefully, you may learn that their face expressions are very like our human beings'. They can laugh, or cry as what we would do in the same situations. Therefore, it is absolutely a possible approach to learn human nature by the research of animals.
Nevertheless, we have to admit that in the process of evolution, human has gained a large number of advanced organs and skills. We can not learn ourselves only by the experiments on animals. For instance,(the) human's brain is the largest and most complex one in all species. We can not learn all of the human brain’s characters by using animals. What is more, many medicines which have been applied in the animals can not be directly used in human body in that it may cause unforeseeable (unpredictable bad) effects.
Furthermore, to the animal protectors, there should be ethic principles to save animals from being easily killed in the experiments. Animals have the right to survive as well. While in the development of scientific research, too many animals have lost their life. For the animal protectors, it remains a question (that) whether the study of animals is the only way to know our humans.
To sum up, we human beings do relate to the animals, while we are not the same in every aspect as animals. The utilization of animals to learn human nature should be maintained in a reasonable state.
楼主的这篇文章论证充分,结构清晰,层次分明,是一篇不错的文章,但如果把反对题目的方面论证的在充分详细一些,支持的方面少写一些就更好了,因为这才是楼主这篇文章的主题,个人意见,仅供参考。
麻烦帮我也改一下https://bbs.gter.net/thread-876618-1-1.html,谢谢