gwd1 10,12 迷惑

caterpillar

10、同意D。这题应该定位于原文的35-41行：Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be repopulated should the fish there disappear. C选项是这句话的同意转换。

fair_sword

agree D,C

snowflower

I think 12 should be B, because "a standard of comparison" does not provide in the passage.

sheila123

10、 Low levels of straying are crucial, since the process provides a source of novel (new)genes and a mechanism

  by which a location can be  repopulated (recolonized)should the fish there disappear.

同意10 D,12 C

[此贴子已经被作者于2004-8-29 9:03:27编辑过]

horsefish

我的选择: 10 12:B

apple01

I agree. Measure here means qualitative measurement.

For B, the genetic structure part is fine. However, "indicate the extent" seems to me a quantitative measurement, which is wrong. So C.

miaoyin_tx

以下是引用robertchu在2004-6-24 1:45:00的发言：

Q12 I think C is better, althoughI have some reservation to the word "standard" there.
In paragraph 2 (P2) where effects of MSH eruption is discussed, the passage does not discuss any "disturbance of salmon habitat by human activity".   

Disgree, 文章第一段第一句就说了"Over the last 150 years, large stretches of salmon habitat have bben eliminated by human activity." 第二段第一句"Large_scale disturbances in one locale also have the potentail to alter the genetic structure of populations in neighboring areas" 第三段第一句很清楚地说，Although no one has quantified changes in the rate of straying as a result of the disturbances caused by human, there is no reason to suspect that the effect would be qualitatively different than what was seen in the aftermath of the Mount Saint Helens eruption."从这里可以推断出作者提到aftermath of the Mount Saint Helens eruption的目的是为了indicate the extent to which the disturbance of salmon habitat by human activity in one stream imght affect the genetiv structure of salmon populations ealsewhere.

BTW, 既然作者已经提到了no one has quantified chagnes in the rate of straying as a result of the disturbances caused by humans, 作者认为the result of the disturbances caued by human 同那个什么的eruptiong没有"质"上的区别。那么C答案中的provide a standard of comparision(量的对比)显然是和作者的观点想矛盾。

因此我选B

[此贴子已经被作者于2004-9-14 6:13:12编辑过]

bryan0806

Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be

repopulated should the fish there disappear.

不好意思   问一下 这句要怎么翻译   should 的 作用 在这句是舍么?

应该跟10题 D  an environmentally degraded stream could be recolonized by new salmon populations should the stream recover

should  的用法一样

   谢谢 !!

[此贴子已经被作者于2004-9-17 23:01:38编辑过]

gibtroll

基本上當我一口氣讀完本文只認為惟B可成為正確答案, 大家不用想太複雜, 前一段舉出natural 大變動的effect, 而本段說雖無數据證明但可得出同結果 (= extend to which may affect), 因無數据, 故 stnadard comparision should be measure 僅為干擾答案, 尤其 should be measure, 本文無建議或需求他人來 measure故錯誤. 如捆惑者建議直接讀完這兩段. 千萬不要僅讀此段, 會被吳導. 附註我蠻相信我的閱讀能力的, 請相信正確答案為B

rhod

For Q12, C is wrong because this article does not intend to raise a standard to compare.  

最后一段开头的意思是, 尽管没有人对人类所造成的危害做出过定量分析，但是相信其危害应该和圣海伦火山差不多.

Therefore, I think B is correct.