范文一：
Nowhere in the world has the issue of wild animals been so much debated as in our society. Nowadays, the habitat of wild animals is being destroyed, but many people think that it to be insignificant¹ to protect these wild animals. The above point is absolutely wrong, this essay will outline three reasons.

The main reason is that people should not master existent right of animals. Not only people but also wild animals have the right to live. More and more wild animals are rapidly disappearing from this globe, it couldn’t be divided with that natural environment was destroyed. It is unfair to wild animals whose existent rights are being ignored.

Another reason is that biologic diversity should be protected. In the future, it will be terrible and alone definitely if only people survive on this globe. Also, the variety of species has an important scientific value. For instance, invention of radar² was based on ultrasonic³ of bat.

Last but not the least reason is many wild animals are not protected, it means the natural balance will be broken, people will face challenges and problems. People destroyed environment of nature, resulting a smaller in habitat for wild animals. Also, the problems of environment have already affected⁴ oneself of people. If people couldn’t amend⁵ current status, it will be the biggest bale of them.

In conclusion, people ought to pay out plenty of money for improving existent environment of wild animals. This behavior doesn’t have the meaning of alms. On the contrary, it just means atonement.

范文二：
Biological diversity has never been so threatened as it is today as a result of the process of human civilization. The various forms of pressure created by human activity have destroyed natural balance, led to the deterioration⁶ of natural habitats, genetic⁷ erosion and the rarity, even disappearance⁸, of a number of plant and animal species.

As the pace of civilization accelerates, more people, taking more space, needing to use more natural resources, engaging in ever-growing consumption, impose severe deterioration on the habitat of animals. An increasing number of people come to realize that the disappearance of animals will result in serious threat to the equilibrium⁹ of ecosystem¹⁰. Simply put, the extinction¹¹ of hawks¹², a rat-eating bird seen in many regions, will result in the rapid propagation of rats. And rats, further, will destroy the prairies and threaten the other animals like gazelles, zebras and others, who live on grass and green lands. The coexistence of animals and human beings creates perfect harmony and brings about the vividness to our planet.

It is hard to imagine what our world would be like without animals. Sociologists also point out that the disappearance of animals can cause social and economic problems. Animal trade, as a supporting sector¹³ to the world economy, was very active before. However, the situation is beyond control since animal trade is very profitable and alluring¹⁴. Many species cannot escape the adversity of being killed.

Certainly, our diet cannot be without meat. There are living stocks, which can provide us with sufficient and nutritious¹⁵ produce. Therefore, we need not to resort to wild animals, especially the endangered ones. To protect animals is to protect our living environment. Every individual should join efforts to keep the diversity of animals. (288 words)