求助:GWD-10-Q15

laihuiyuan

想请NN们帮忙解释一下，先谢谢啦

GWD-10-Q15

Which of the following most logically completes the argument below?

Although the number of large artificial satellites orbiting the Earth is small compared to the number of small pieces of debris in orbit, the large satellites interfere more seriously with telescope observations because of the strong reflections they produce. Because many of those large satellites have ceased to function, the proposal recently been made to eliminate interference from nonfunctioning satellites by exploding them in space. This proposal, however, is ill conceived, since     .

1. many nonfunctioning satellites remain in orbit for years

2. for satellites that have ceased to function, repairing them while they are in orbit would be prohibitively expensive

3. there are no known previous instances of satellites’ having been exploded on purpose

4. the only way to make telescope observations without any interference from debris in orbit is to use telescopes launched into extremely high orbits around the Earth

5. a greatly increased number of small particles in Earth’s orbit would result in a blanket of reflections that would make certain valuable telescope observations impossible

答案是E，我选的是D 我的理解是telescope observation与其他太空飞行器interfere的原因不在于和卫星相撞，在太空引爆卫星不能解决问题。那么就可以削弱。

另外，我类似complete the argument这样的逻辑题都做得不太好，有什么好的思路么？谢谢了

netmovr

天文望远镜之所以不能很好的工作是因为debris的反射，大卫星的存在就等于是一种大的debris会反射，决定炸掉大卫星，但是炸掉大卫星会有很多的小碎片，这样会使得观察更加的困难

D怎么样使得天文望远镜如何能不受影响不是文章考虑的问题

文章问的是炸掉大卫星为什么是ill conceived、

laihuiyuan

谢谢楼主，got　it～

toneere

感觉是一个weaken题，无关的选项都要排出!

jasnoyang

二楼的解释非常好，我之前就是没有考虑到炸掉大卫星，会产生很多小碎片，而E选项里所说的急剧增加的小碎片就是炸掉大卫星所产生的。