- 分享到:
文章词汇使用较为恰当灵活，希望能更熟练地使用学术词汇作者有一定功底，可在平时练习中增加长难句的记忆；文章采用了适当的过渡词和衔接词，结构比较严谨。
Human activities have cause damage to the ecosystem throughout these years especially pose a threat to biodiversity. there are many species of animals and plants died out. some argued that we still need to take effective actions to tackle this problem, and i agree with this idea. Some people hold the view of that it is too late to take measures to change the dire state. a lot of human activities such as deforestation and over-grazing have been done for a long time, and the environment has already been destroyed for years, so this situation cannot be change easily. for example, once the river water was polluted, the quality of water would not as good as before, and many plants and animals lives in water can be influenced. nonrenewable resource cannot come back to former situation after the extinction. On the other hand, we can hold a positive opinion that there are many effective ways in current. with technological development, many advanced technologies will be applied into protection of environment. for example, scientists have developed the colon technology and applied in species to protect the biodiversity, which reduce the risk of extinction for plants and animals. and there are also many scientific measures to prevent the habitats of animals and plants from human activities.
