请教GWD3 阅读一题 GWD遗漏之一题

mauricew

1.          GWD-3-Q5 to Q7火星陨石的化合物能够证明火星上有生命物质么

      In 1994, a team of scientists led  1994年DM带领的一队科学家开始对在

        by David Mckay began studying the        1984年南极洲发现的陨星ALH84001

        meteorite ALH84001, which had been      进行研究。

Line  discovered in Antarctica in 1984.

  (5)
    Two years later, the McKay team      2年后，DM宣布这颗科学家们一般同意

announced that ALH84001, which      是源自火星的陨星，包含有力证据证明火

scientists generally agree originated     星上曾存在生命。

on Mars, contained compelling evi-

dence that life once existed on Mars.

 (10)
    This evidence includes the discovery    证据包括首次在火星岩石发现的有机分

of organic molecules in ALH84001,       子。有机分子- 复合碳基化合物是陆地

the first ever found in Martian rock.       生命的基础。

Organic molecules—complex, carbon-

based compounds—form the basis for

 (15)
    terrestrial life.  The organic molecules  陨星里发现的有机分子叫PAH，是多环

found in ALH84001 are polycyclic aro-    芳香碳氢化合物。微生物死后其有机物

matic hydrocarbons, or PAH’s.  When   质经常腐化为PAH。

microbes die, their organic material

often decays into PAH’s. M的发现：火星上有生命

 (20)
          Skepticism about the McKay team’s  大家还是对DM的观点抱疑。

        claim remains, however.  For example,        怀疑1，陨星已在地球上13000年，

        ALH84001 has been on earth for              PAH可能是源于陆地污染。

13,000 years, suggesting to some

scientists that its PAH’s might have

 (25)
    resulted from terrestrial contamination.

However, McKay’s team has demon-        DM辩护道，PAH在陨星里越深越多

strated that the concentration of PAH’s      与陆地污染结果是相反的。

increases as one looks deeper into

ALH84001, contrary to what one would

 (30)
    expect from terrestrial contamination.

The skeptic’s strongest argument,          强烈怀疑2，DM发现的证据包括PAH

however, is that processes unrelated       很容易在与有机生命毫不相干的过程

        to organic life can easily produce all           中产生。

the evidence found by McKay’ steam,

 (35)
          including PAH’s.  For example, star       如恒星形成产生PAH。另外，PAH经

formation produces PAH’s.  Moreover,     常出现在其他陨星，没人把这归于生

PAH’s frequently appear in other           命过程。

meteorites, and no one attributes

       their presence to life processes.

 (40)        Yet McKay’s team notes that the          DM辩护道，陨星里PAH的特殊化合

particular combination of PAH’s            物更类似腐化机体产生的化合物，而

in ALH84001 is more similar to the          非源于非生物过程。

combinations produced by decaying

organisms than to those originating

form nonbiological processes.
   对M理论的怀疑

Question 8:

The passage suggests that organizations’ movement to the “new paradigm” (line 11) is

based in part on the expectation that wrongful discharge suites against employers are?

A.   less likely to be filed by non-managerial employees than by managers

B.   less likely to be filed by leased employees than by contract employees

C.   less likely to be filed by contract employees than by permanent employees

D.      more likely to be filed by employees with a long history in the organization than

by newer hirers答案是什麽？谢谢xdjm

[此贴子已经被作者于2008-2-13 20:55:38编辑过]