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标题: GWD 29-28 NN进来指点下吧 [打印本页]
作者: benja    时间: 2007-7-23 14:28
标题: GWD 29-28 NN进来指点下吧

1.        GWD-29-Q28

Astronomer:  Observations of the Shoemaker-Levi comet on its collision course with Jupiter showed that the comet broke into fragments before entering Jupiter’s atmosphere in 1994, but they did not show how big those fragments were.  Nevertheless, some indication of their size can be inferred from spectrographic analyses of Jupiter’s outer atmosphere.  After the fragments’ entry, these analyses revealed unprecedented traces of sulfur.  The fragments themselves almost certainly contained no sulfur, but astronomers believe that the cloud layer below Jupiter’s outer atmosphere does contain sulfur. Since sulfur would have seeped into the outer atmosphere if comet fragments had penetrated this cloud layer, it is likely that some of the fragments were at least large enough to have passed through Jupiter’s outer atmosphere without being burned up.

 

In the astronomer’s argument, the two portions in boldface play which of the following roles?

 

  1. The first is a claim that the astronomer seeks to show is true; the second acknowledges a consideration that weighs against the truth of that claim.

  2. The first is a claim that the astronomer seeks to show is true; the second provides evidence in support of the truth of that claim.

  3. The first and the second are each considerations advanced in support of the conclusion of the argument.

  4. The first provides evidence in support of the conclusion of the argument; the second is that conclusion.

  5. The first is a circumstance for which the astronomer seeks to provide an explanation; the second acknowledges a consideration that weighs against the explanation provided by the astronomer.

这道题，怎么分析呢？？？

作者: allfar    时间: 2007-7-23 20:08

先看第二個.明顯支持~

可以排出A,D,E

看B,C~

如果第一個看不懂是什么的話,至少知道它不是支持結論,因為第一個并未描述任何現象~

我選了B.

大家呢?

作者: jesdy    时间: 2007-7-31 11:24

答案不是c吗

顶一下

作者: patrickzx    时间: 2007-7-31 17:20
VOTE FOR C
作者: karen_bai19    时间: 2007-7-31 20:47

我选B

作者: gonghao    时间: 2007-7-31 23:12

C是答案

结论抓住：it is likely that some of the fragments were at least large enough to have passed through Jupiter’s outer atmosphere without being burned up

前面有一个现象，但是彗星本身并不能解释，但是确实科学家确信有硫，又因为sulfur would have seeped into the outer atmosphere if comet fragments had penetrated this cloud layer

所以以上这些都可算得consideration来支持最后的结论的

作者: jimhou    时间: 2007-8-1 02:00
C是答案
作者: sunnyeva    时间: 2008-8-5 15:42
这一题我先选的B，但是现在觉得是C。
B中的Claim貌似不合适吧，偶觉得claim在原文中应该指some of the fragments were at least large enough...(原文最后一句)，大家觉得呢？
作者: stavan    时间: 2008-8-5 15:46

就是选C，

两个黑体部分都是事实，也可以说成是需要考虑的事情（consideration）

没有任何人的主观判断在内，不能称作claim

作者: 夜凉如水    时间: 2008-8-5 22:55
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