Argument71[jet小组]第六次作业

cascadeUID: 2454141

Argument 71.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.

By citing the fact that the new copper-extracting technologies can use up to 40 percent less electricity than the older method to process the same amount of raw ore, the arguer unfairly broaden these technologies to embrace all ore’s extracting. Therefore, the arguer asserts that we can expect the electricity used by the copper-extraction industry to decline significantly. However, at the same time, the arguer fails to consider some possible alternatives as follows:

First of all, since the proportions of copper in the ore vary considerably, the arguer does not tell us the copper proportion of other ores besides raw ore while the arguer also points out that the lower proportion of copper, the larger amounts of electric energy requires. It is possible that the raw ore’s main constitution is copper and other ores’ proportion of copper are much lower than the former; therefore refining copper from raw ore requires low electric energy while other ores processing need a great of electricity. For example, processing a kilogram raw ores needs 10 w compares to the average of other ores’ 10,000 w. Though the electric energy using is 40 percent lower than before, the decline of electric energy is 4 w. However, when it comes to process raw ore, there is still long way to go, because 4 w can be ignored with respect of 10,000 w.

Secondly, are the new technologies using by extracting copper from raw ore also the same with other copper ores? As we known, the copper ores have many other compounds we called impurities which do not include copper; moreover, these impurities vary greatly in different ores.
However, different impurities may cause the differences among the methods of purifying. Maybe the new technologies are just suitable to purify the copper from the raw ore and are useless when confronting other ores. Moreover, if we force all factories to use the new methods without thinking thoroughly, a large lose will be created. Unless the arguer provide us the experiment doing on other copper ores to proof that the new method can be used widely, we cannot accept the arguer’s conclusion as true.

In addition, in the argument, the practicability of the new method the arguer talks above is still questionable. There are many new methods come to the world every day, but only a few of them which are easily realized and have low costs can be used in industry. As for the industry extracting copper from ores, beside the requirements we talk above, we should also take respect of environment, therefore, it must be environmental friendly. The arguer cannot convince me on the new method will be widely used in industry until the arguer provide me enough evidence to show the new method accord to the demands we talk above.

In sum, we cannot believe the new technologies the arguer referred to will cause the decline of the use of electric energy in copper extracting industry for the arguer ignored several details such as the proportion of other ores, the availability and the practicability of the method.


[ 本帖最后由 cascade 于 2008-2-14 16:04 编辑 ]

hds123523000UID: 2454889

By citing the fact that the new copper-extracting technologies can use up to 40 percent less electricity than the older method to process the same amount of raw ore, the arguer unfairly broaden these technologies to embrace all ore’s extracting. Therefore, the arguer asserts that we can expect the electricity used by the copper-extraction industry to decline significantly. However, at the same time, the arguer fails to consider some possible alternatives 【variable】as follows:

First of all, since the proportions of copper in the ore 【is】vary considerably, the arguer does not tell us the copper proportion of other ores besides raw ore【我不知道你是否读懂题，raw ore是未提炼的矿】 while the arguer also points out that the lower proportion of copper, the larger amounts of electric energy requires. It is possible that the raw ore’s main constitution is copper and other ores’ proportion of copper are much lower than the former; therefore refining copper from raw ore requires low electric energy while other ores processing need a great of electricity. 【想法很好，可是不实际，难道还有不是从原矿（这个概念对应于原油）里面提炼铜吗】For example, processing a kilogram raw ores needs 10 w compares to the average of other ores’ 10,000 w. Though the electric energy using【ed】 is 40 percent lower than before, the decline of electric energy is 4 w. However, when it comes to process raw ore, there is still long way to go, because 4 w can be ignored with respect of 10,000 w.

Secondly, are the new technologies using by extracting copper from raw ore also the same with other copper ores?【还是上面那个问题】 As we known, the copper ores have many other compounds we called impurities which do not include copper; moreover, these impurities vary greatly in different ores.
However, different impurities may cause the differences among the methods of purifying. Maybe the new technologies are just suitable to purify the copper from the raw ore and are useless when confronting other ores. Moreover, if we force all factories to use the new methods without thinking thoroughly, a large lose will be created. Unless the arguer provide us the experiment doing on other copper ores to proof that the new method can be used widely, we cannot accept the arguer’s conclusion as true.【这个观点不错】

In addition, in the argument, the practicability of the new method the arguer talks above is still questionable. There are many new methods come to the world every day, but only a few of them which are easily realized and have low costs can be used in industry. As for the industry extracting copper from ores, beside the requirements we talk above, we should also take respect of environment, therefore, it must be environmental【这里两个形容词放在这里错了吧，be friend to the environment】 friendly. The arguer cannot convince me on the new method will be widely used in industry until the arguer provide me enough evidence to show the new method accord to the demands we talk above.

In sum, we cannot believe the new technologies the arguer referred to will cause the decline of the use of electric energy in copper extracting industry for the arguer ignored several details such as the proportion of other ores, the availability and the practicability of the method.

我一直在想你是不是吧raw ore理解成了含某种成分的矿啊，其实它是指原矿，没有提炼的，这是一个宽泛的概念，这个错误导致你前两个观点错误。很遗憾~~。可能是你直接看题，没有用金山词霸，勇气可嘉，下次努力吧

cascadeUID: 2454141

Argument 71.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.

By citing the fact that the new copper-extracting technologies can use up to 40 percent less electricity than the older method to process the same amount of raw ore, the arguer unfairly broaden these technologies to embrace all ore’s extracting. Therefore, the arguer asserts that we can expect the electricity used by the copper-extraction industry to decline significantly. However, at the same time, the arguer fails to consider some possible alternatives as follows:

First of all, is the comparison between new method and old method fair enough? There are many kinds of copper ores in which copper and other chemical elements compose various compounds. Since the constitutions of these raw ores are different from each other, if the speaker uses different copper ores to compare, even though the proportion of copper in these ores are the same, we cannot come to the conclusion that the new method is better than the old one in the expending of electric energy.

Moreover, we should take notice of that the speaker just simply took same amount of raw into comparison, however, the speaker failed to provide the proportion of copper in these raw ores. It is possible that the speaker use the ores with higher proportion of copper to test new method and use lower contention of ores to try the old method. Since the lower contention the copper is, the higher electric energy needs during refining copper, it is not strange at all that the new method needs less electric energy.

In addition, in the argument, the practicability of the new method the speaker talks above is still questionable. There are many new methods come to the world every day, but only a few of them which are easily realized and have low costs can be used in industry. As for the industry extracting copper from ores, beside the requirements we talk above, we should also take respect of environment, therefore, it must be environmental friendly. The arguer cannot convince me on the new method will be widely used in industry until the arguer provide me enough evidence to show the new method accord to the demands we talk above.

In sum, we cannot believe the new technologies the speaker referred to will cause the decline of the use of electric energy in copper extracting industry for the arguer ignored several details such as the details of the co-mparison of  two methods and the practicality of the new method.

[ 本帖最后由 cascade 于 2008-2-16 19:44 编辑 ]