是句子之间连接词
Science has brought positive changes to our lives in recent years. However, despite those benefits that are produced by booming society, the world has also suffered from some problems, which are difficult to solve. Some people might hold a positive attitude towards those issues, thinking that they can be settled down in our lifetime. Yet, for me, I don’t think important problems can be solved in our lifetime. Can the rebuild of animals’ habitats be finished within a short time? Can we work out those endless traffic problems? Can we create non-renewable material in our life time? Unfortunately, all the answers are ”No”.
Animals, which are indispensible for our world, are teetering on the brink of extinction). Take Africa elephants as an example. Due to the destruction of grasses and hunting by humans, the number of this species decline sharply. Although people have begun to recognize the importance of protecting this kind of animals and pose a strict regulation to forbid hunting, not much progress have been made since without the improvement of habitat, merely limitation of hunting is not an efficient solution.这句话太长了,表达的有点乱 What we need to do is creating suitable habitats. However, it costs a lot of time to rebuild a new and natural habitat because once the balance of ecosystem is disrupted, the rebirth of many speiceses单复同 of animals and plants that are requisite for the habitat needs so much time Creating. Thus,I believe the conditions for elephants to survive will remain poor in the foreseeable future as the global environment issues will stay unsolved。
Along with the protection of animals, traffic problem is also a challenge that cannot be solved in our lifetime. Currently, the government has tried hard to solve problem, such as traffic jam. But the methods they’ve come out, that is(such as) broading the road, arranging more buses and so on, might not work in future. It’s easy to figure out that since the development of city is sometimes beyond imagination, people, even those who express a great vision are unable to foresee the future in a perfectly right way, let alone solve the traffic problem with current solution. (没有表达清楚为啥没法解决.政府想出来的办法也许将来没效果,因为城市发展无法想象,,,这个理由有点牵强.)
Moreover, the decline of those non-renewable material is also a question that will never be figured out. For instance, the fossil fuels, which are the mainly resources of energy is going to die out in some area. Even though, scientists are finding new materials to substitute them, the situation that fossil fuels are disappearing is unshakable.
From what have been discussed above, we can draw a conclusion that important problems can not be solved in our lifetime. They need people spare no effort to deal with from generation to generation.-- by 会员 beiyezi (2012/9/7 14:12:04)