63 篇 passage 33

jianlysmile

4.     The author of the passage probably mentions Canizares’ determination in order to

(A) clarify an ambiguity in Fabian’s research findings

(B) illustrate a generalization about the temperature of gas in a galaxy cluster

(C) introduce a new argument in support of the orthodox view of galaxies

(D) provide support for Fabian’s assertions about the Perseus galaxies（D）

(E) provide an alternate point of view concerning the movement of gas within a galaxy cluster

我觉得B也沾边啊，虽然是D更好些。那B有哪里不很合适呢？如果没有D是不是B也可以呢？

谢谢～

raikey

可用反证法排除D:如果D正确，那么什么是origin of intergalactic gas呢?

文章中就提到一句Scientists have begun to suspect that this intergalactic gas is probably a mixture of gases left over from the “big bang” when the galaxies were formed and gas was forced out of galaxies by supernova explosions.

而文章中的其他文字，都是在说intergalactic gas形成后怎么流入galaxy,所以可以排除D(包括A).

一家之见，大家继续讨论．

catherine_fo

看了翻译，还是觉得有问题。

正如前面众XDJM说的，旧观点说space between the galaxies in our universe was a near-perfect vacuum

新观点说astronomers who believe that a heavy “rain” of gas is falling into many galaxies from the supposedly empty space around them

要比较也只能是这两样东西的比较

B很有问题~为什么不是D啊~

wishzf

以下是引用catherine_fo在2007-4-19 20:08:00的发言：

看了翻译，还是觉得有问题。

正如前面众XDJM说的，旧观点说space between the galaxies in our universe was a near-perfect vacuum

新观点说astronomers who believe that a heavy “rain” of gas is falling into many galaxies from the supposedly empty space around them

要比较也只能是这两样东西的比较

B很有问题~为什么不是D啊~

同问: 文章不是都说明space between galaxies,

没有人选C么

dldennis

天蝎座1107

文章结构:

1p: 一个orthodox view  提出challenge此orthodox view一个解释 big bang explosion gas from the galaxy

2p: 提出另一个解释 cooling gas flow streaming inward

3p: 给出正评价的解释是cooling gas flow streaming inward 以P的例子来解释为什么

整篇文章的大构架是
            反对orthodox view

之后是两个反对orthodox view的解释角逐
            最后选了cooling gas flow streaming inward但是不论这两个解释如何角逐
            总的要点是要反对orthodox view

1.    错误原因没有理解清楚逻辑结构The primary purpose of the passage is to

(A) illustrate a hypothesis about the origin of galaxies 首先不是a hypothesis 而是两个 其次不是origin of galaxies这个内容

(B) provide evidence to dispute an accepted theory about the evolution of galaxies

(C) summarize the state of and prospects for research in intergalactic astronomy如果没有理解了逻辑结构就会选C 关键是要明白文章整个大的构架是要反对orthodox view 不论这个大构架里面做了怎样的引申和转折

(D) report new data on the origins of intergalactic gas（B）没有new data

(E) reconcile opposing views on the formation of intergalactic gas 没有reconcile

mofell

文章结构:

1p: 一个orthodox view  提出challenge此orthodox view一个解释 big bang explosion gas from the galaxy

2p: 提出另一个解释 cooling gas flow streaming inward

3p: 给出正评价的解释是cooling gas flow streaming inward 以P的例子来解释为什么

整篇文章的大构架是
反对orthodox view

之后是两个反对orthodox view的解释角逐
最后选了cooling gas flow streaming inward但是不论这两个解释如何角逐
总的要点是要反对orthodox view

1.    错误原因没有理解清楚逻辑结构The primary purpose of the passage is to

(A) illustrate a hypothesis about the origin of galaxies 首先不是a hypothesis 而是两个 其次不是origin of galaxies这个内容
(B) provide evidence to dispute an accepted theory about the evolution of galaxies

(C) summarize the state of and prospects for research in intergalactic astronomy如果没有理解了逻辑结构就会选C 关键是要明白文章整个大的构架是要反对orthodox view 不论这个大构架里面做了怎样的引申和转折
(D) report new data on the origins of intergalactic gas（B）没有new data
(E) reconcile opposing views on the formation of intergalactic gas 没有reconcile

-- by 会员 天蝎座1107 (2009/7/29 10:45:00)

同意对文章结构的分析，但是我并不觉得文章侧重于反对orthodox view
orthodox view ,new view ,和解释一 都出现在第一段，之后2段都在讲另外一个解释。
并且最后一段中间说，According toprevious speculation, these strands were gases that had been blown out by an explosion in the galaxy. Fabian,however, disagreed.
反驳掉了解释一。文章花那么大手笔写解释二反驳解释一，为什么不能理解为C选项？


此外，B an accepted theory about the evolution of galaxies，
旧观点说 most astronomers believed that the space between the galaxies in our universe was a near-perfect vacuum.
其描述的是一个静态的结果，并不是星系间的进化发展问题。
提到星系间的进化发展的时候是在文章解释其反驳意见的时候。
而题目说的是an accepted theory about the evolution of galaxies，我觉得很不正确

mofell

A fairly heretical idea in the 1970’s, the cooling-flow theory gained support when Fabian observed a cluster of galaxies in the constellation Perseus and found the central galaxy, NGC 1275, to be a strange-looking object with irregular, thin strands of gas radiating from it.



7.It can be inferred from the passage that which of the following is true of Fabian’s theory?


(A) It did not receive approval until Canizares’ work was published.

(B) It was not widely accepted in the 1970’s.

(C) It did not receive support initially because technology was not available to confirm its tenets.

(D) It supports earlier speculation that intergalactic gas was largely the result of explosions outside the galaxy.（B）

(E) It was widely challenged until x-ray evidence of gas temperatures in NGC 1275 had been presented.



E为什么不正确...

boozy

文章确实也探讨了intergalactic gas,  但是并没有主要讨论它的origin，所以D不对。

phillipsyuen

天蝎座1107 发表于 2009-7-29 10:45
文章结构:1p: 一个orthodox view  提出challenge此orthodox view一个解释 big bang explosion gas fro ...

看一下！