有没有高人闲着的,求了帮改下,快考试了。
06.10.28 新能源(sun, wind, water)will be soon replace旧能源fossil fuels (oil, gas…), agree or disagree?
Plenty of news pointed out that more and more new resources, just like sun, wind, and water, can be used instead of fossil, fuels, and so on. But I totally don’t agree with this opinion.
First of all, the new resources cost extremely money to exploit; in addition, the advantages are much more deficient than the old fossil resources except the air pollution. When they tried to explore out the new resources, isn’t it necessary to plant more green plants to absorb the pollution which is made by the fossil resources? There is no denying the fact that American, the country which has an extreme number of cars, has the wonderful fresh air, because almost all the ground are covered by grass, flowers, and trees. From this instance identifies that using extraordinary number of fossil is not the most necessary reason of air pollution.
Secondly, the new resources cost pretty much money to use even though they are explored by a number of processes. A number of examples can prove it, and the most general example of all is the different type of cars. Do you remember how many different resources can run a car when you went to a car shop to buy a car? The seller may tell you that there are two completely same cars. One of them is used gas only, and other one can use electric and gas together; however, the price of the latter one is as two times as the first one. Is there anybody want to spend so much money in protecting the environment? Few. So even though the new resources are completely developed, people still can hardly accept the extra money for using them.
Finally, the most important reason is that, we can’t know if the new resources are safe enough to use. Plenty of examples designated that the new technologies are not safe at all. For example, we can always hear the news that is refer to the machines, which are used atoms, exploded and polluted the circumstance. Isn’t it more serious than the pollution of using fossil resources? According to the new resource’s accidents, we can figure out a decision that using the fossil resource is much safer than using the new one, because there are excessive serious problems we don’t know with regard to use the new resource.
From the above instances, we must be sure that the new resources can not replace the old ones. The only thing we can do is to save fossil and to plant grass as much as possible.