jiajy930809 发表于 2014-7-22 17:05
722 综合:
TPO 9
Both of the writer and the professor remark upon the topic of automobile's main so ...
修改贴: TPO9 综合
TPO 9 Bothof the writer and the professor remark upon the topic of automobile's mainsource power. The writer in the reading passage demonstrates thathydrogen-based fuel-cell engine is the most promising alternative source sofar. The professor in the lecture, however, holds a totally disparate view thatthis engine is not the best solution, which casts doubt on the reading passage. First and foremost, the writer contends thatpetroleum is a finite resource while hydrogen, which can be derived fromnatural gas or water, cannot be easily depleted. On the contrary, the professorclaims that even if hydrogen can be derived from various sources, it is not easily usable asimagined since only pure liquid hydrogen can be used as energy, which is difficult to produce and store. . Therefore, the reading passage isopposite to the lecture. Inaddition, running counter to the belief in the reading passage thathydrogen-based cars will solve the pollution problems in that the byproduct offuel-cell engines is water, the professor explains that the producing procedureof liquid hydrogen includes burning a largeamount of coal or oil, which harms the environment as well. Thus the lecture isat odds with the writer's expectation. Furthermore, the writer points out thatoperating a fuel-cell engine spends less since it is more efficient in deriving energy to power the car. However, this idea is refuted by what is stated inthe lecture that the fuel-cell engine requires an expensive and rare metal to produce and only this kind of metalwill permit hydrogen to undergo chemical reactions, which would rise the cost as a result. Tosum up, the reading passage is totally jeopardized by the lecture.
感谢小伙伴修改,这篇我是真的看到自己听力的弱点了,最后蓝色标注的地方我又去看了听力原文,觉得是这个engine 制造而不是装 liquid的容器贵,这个容器在文中没有讲到。
今天开始洗心革面换场子了~
|