Question

2. Although the bad effect of animal endangerment on human beings         ，we do not yet have any practical way to prevent the endangerment. (realize)

虽然动物濒危对人类的负面影响正在被意识到，但我们还拿不出实际方法去阻止动物的濒危。

Answer 1

2. is being realized用现在进行时的被动语态，表"正被人们所意识到"。