Argument71 限时写! v6 8.20

kobestrongUID: 2117374

Argument71 限时写!
Copper occurs in nature mixed with other minerals and valuable metals in ore, and the proportion of copper in the ore can vary considerably. Until fairly recently, the only way to extract pure copper from ore was by using a process that requires large amounts of electric energy, especially if the proportion of copper in the ore is low. New copper-extracting technologies can use up to 40 percent less electricity than the older method to process the same amount of raw ore, especially when the proportion of copper in the ore is high. Therefore, we can expect the amount of electricity used by the copper-extraction industry to decline significantly.
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The author contends that the amount of electricity used by the copper-extraction industry with new technologies would decline significantly. To support his assumption, the author provides the information that until recently, the process of extracting pure copper from ore needs large amounts of electric energy, especially when the proportion of copper in the ore is low, and the new method can use up to 40 percent less electricity than the older method to process the same amount of ore, especially when the proportion of copper in the ore is high. However, in my view, the author's claim is ill grounded.

To begin with, the speaker's assumption rests on the fact that the new technologies can use up less electricity than the older method to process the same amount of raw ore, especially when the proportion of copper in the ore is high. However, the speaker fails to consider the situation that if the proportion of the copper in ore is very low, whether the new method could also save electricity. It is entirely possible that when the proportion is low, the electricity used up by the new technologies is even higher than the one used up by the older method, and if in most cores the proportion of the copper is low, then the expectation of declining of the electricity will not happen.

In addition, even if the new method could also save energy when the proportion is high, the speaker still cannot convince me because he does not inform whether the copper extracted by the new method is as pure as the older method does. It is quite possible that the copper is not pure when using the new method, and then another process to extract for purer copper is needed that will use up even more electricity than the old method. Thus, failing to consider this possibility, I can hardly believe that the new method will use up less energy.

Finally, even the speaker could substantiate all the foregoing assumptions, the speaker still could not hastily come to the conclusion that we can expect the amount of electricity used up by the copper-extraction industry to decline significantly. The speaker fails to support more information about the new technologies, such as the cost of the machine, the side effects when processing and we even do not know whether the new technology comes to birth or it is only the conception of the speaker. In other words, perhaps the new method could not put into production at all.

In conclusion, to better evaluate the argument, we need more convincing evident and information.

hustzwjUID: 203387

我来看看，早就听说练铜这篇了！
这回要亲密接触了！:lol

hustzwjUID: 203387

前面两个点和我想的几乎一样，没的挑，只是第三电我和你的不同，或许可以补充道里面：
它因导致用电反而增加：有了新方法后，由于节电，而businessman为了利润大量疯狂用电，结果。。。:lol

drofrephUID: 2126193

In conclusion, to better evaluate the argument, we need more convincing evident and information.

very good article!

I also suggest you restate, in the last paragraph, that the original argument is weak as it stands.
You'd better say something in detail about what "more convincing evident and information" should be included. Such information maybe the density distribution of copper in the ore and the relation of engergy consumed in new technology for refining each unit of copper to the density of the ore.

richardlyUID: 2119115

还有一点吧，其实题目都暗示你了。铜矿里面还有其他有价值的金属，新方法能否提炼这些金属？如果不能的话下结论新方法能推广就是unfounded conclusion

kobestrongUID: 2117374

嗯~! 大家都说的很有道理,收下了,谢谢~!!