不不
是對比
提供一比較標準來與"須被衡量的(對鮭魚群間流動基因衝擊的)人類活動"相比
版主: shpassion, Traver0818
twkevin \$m[1]:agk99 \$m[1]:
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GWD-1-Q12:
The author mentions the “aftermath of the Mount Saint Helens eruption” (lines 73-74) most likely in order to
A. provide an example of the process that allows the repopulation of rivers whose indigenous salmon population has become extinct
B. indicate the extent to which the disturbance of salmon habitat by human activity in one stream might affect the genetic structure of salmon populations elsewhere
C. provide a standard of comparison against which the impact of human activity on the gene flow among salmon populations should be measured
D. show how salmons’ homing instinct can be impaired as a result of severe environmental degradation of their natal streams
E. show why straying rates in salmon populations remain generally low except when spawning streams suffer severe environmental disturbance
選C應該沒問題
Q12 我選B
在CD 也有長篇討論過這題 不過似乎也沒明確結論
why I favor (B):
最後一段
Although no one has quantified
changes in the rate of straying
as a result of the disturbances
caused by humans, 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.
再往回看原提及 eruption of Mount Saint Helen ( 52行)
是來說明straying rates can increase dramatically when streams suffer severe disturbance.
而straying rates 是在說明 ( 第二段開頭 )
Large-scale disturbances in one locale also have the potential
to alter the genetic structure of populations in neighboring areas,
B.indicate the extent to which the disturbance of salmon habitat by human activity in one stream might affect the genetic structure of salmon populations elsewhere
至於(C)
C.provide a standard of comparison against which the impact of human activity on the gene flow among salmon populations should be measured
# a standard of comparison : 原文只提及there is no reason to suspect that .. 還不到成為 standard
# should be measured : 原文只提及 Although no one has quantified ...
雖然.... 但作者也沒說should be measured
agk99 \$m[1]:
GWD-1-Q10:
It can be inferred from the passage that the occasional failure of some salmon to return to their natal streams in order to spawn provides a mechanism by which
A. pristine streams that are near polluted streams become polluted themselves (文章沒有這種暗示)
B. the particular adaptations of a polluted stream’s salmon population can be preserved without dilution (剛好相反)
C. the number of salmon in pristine habitats decreases relative to the number in polluted streams
D. an environmentally degraded stream could be recolonized by new salmon populations should the stream recover
E. the extinction of the salmon populations that spawn in polluted streams is accelerated
(文章若能仔細review一次,應該可以選出D)
GWD-1-Q12:
The author mentions the “aftermath of the Mount Saint Helens eruption” (lines 73-74) most likely in order to
A. provide an example of the process that allows the repopulation of rivers whose indigenous salmon population has become extinct
B. indicate the extent to which the disturbance of salmon habitat by human activity in one stream might affect the genetic structure of salmon populations elsewhere
C. provide a standard of comparison against which the impact of human activity on the gene flow among salmon populations should be measured
D. show how salmons’ homing instinct can be impaired as a result of severe environmental degradation of their natal streams
E. show why straying rates in salmon populations remain generally low except when spawning streams suffer severe environmental disturbance
廖唯甄 \$m[1]:新手,嘗試解答~
你的問題是不是,
(1)against the impact of human activity
or
(2)against which the impact of
human activity on the gene flow among salmon populations
should be measured 這整句話
我覺得是(1)
老莫說的,介係詞加關代 aginst which
which是代名詞,代名詞,不可以帶句子!!!
所以against是against the impact.
翻成中文就是,提供一個比較標準來反對人類活動對鮭魚人口gene flow的影響,而這影響是需要被衡量的!!!
gogotu \$m[1]:twkevin \$m[1]:agk99 \$m[1]:
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GWD-1-Q12:
The author mentions the “aftermath of the Mount Saint Helens eruption” (lines 73-74) most likely in order to
A. provide an example of the process that allows the repopulation of rivers whose indigenous salmon population has become extinct
B. indicate the extent to which the disturbance of salmon habitat by human activity in one stream might affect the genetic structure of salmon populations elsewhere
C. provide a standard of comparison against which the impact of human activity on the gene flow among salmon populations should be measured
D. show how salmons’ homing instinct can be impaired as a result of severe environmental degradation of their natal streams
E. show why straying rates in salmon populations remain generally low except when spawning streams suffer severe environmental disturbance
選C應該沒問題
Q12 我選B
在CD 也有長篇討論過這題 不過似乎也沒明確結論
why I favor (B):
最後一段
Although no one has quantified
changes in the rate of straying
as a result of the disturbances
caused by humans, 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.
再往回看原提及 eruption of Mount Saint Helen ( 52行)
是來說明straying rates can increase dramatically when streams suffer severe disturbance.
而straying rates 是在說明 ( 第二段開頭 )
Large-scale disturbances in one locale also have the potential
to alter the genetic structure of populations in neighboring areas,
B.indicate the extent to which the disturbance of salmon habitat by human activity in one stream might affect the genetic structure of salmon populations elsewhere
至於(C)
C.provide a standard of comparison against which the impact of human activity on the gene flow among salmon populations should be measured
# a standard of comparison : 原文只提及there is no reason to suspect that .. 還不到成為 standard
# should be measured : 原文只提及 Although no one has quantified ...
雖然.... 但作者也沒說should be measured
我補充一下選B的原因:
這篇文章依旨趣分為三部份:
第一部份講 人類活種的影響L1-15
第二部分 講 環境因素對類近地區魚群的影響L15-65
第三部分 回頭講人類活動也會和環境因素一樣,對周圍魚群的生態造成影響。L65-79
首先 這題是在第三個部份提問,亦即在強詷人類活動也會和環境改變一樣,對過邊的魚群造成影響。其次, in the aftermath of the Mount Saint Helens eruption就是在說明裝境改變對周邊魚群的影響,很顯然,這個例子擺在這裡,就是要說,人類活動的影響(雖然還沒有被證實),和這個(the aftermath of the Mount Saint Helens eruption)情況,不會差太遠!
請大家參考!
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