GWD3-5-7(火星隕石)

[Chris1]

請問一下各位,
下面這一小段,

(20) Skepticism about the McKay team’s
claim remains, however. For example,
ALH84001 has been on earth for
13,000 years, suggesting to some
scientists that its PAH’s might have
(25) resulted form terrestrial contamination.

裡面的have resulted form是不是應該是have resulted from阿??
還是我不了解其中的奧義呢??
謝謝各位了^^

AT真是讓我頭好痛.........

[A級垂耳兔]

however(廢話), is that processes unrelated
to organic life can easily produce all
the evidence found by McKay’ steam,
(35) including PAH’s(天哪有3行-不過就是講證據可偽造).

我想這裡不是指證據可偽造...而是指PAH’s這個物質可能是由其他非相關(即非生物腐爛形成)因素形成...後面舉例說明星球形成時同樣也會產生這種物質...

[Huang Hsin-Yi]

GWD-3-Q5:
The passage asserts which of the following about the claim that ALH84001 originated on Mars?

A. It was initially proposed by the McKay team of scientists.
B. It is not a matter of widespread scientific dispute.
C. It has been questioned by some skeptics of the McKay team’s work.
D. It has been undermined by recent work on PAH’s.
E. It is incompatible with the face that ALH84001 has been on Earth for 13,000 years

請問這題為為什麼不能選C勒?

[Huang Hsin-Yi]

GWD-3-Q7:
The passage suggests that the fact that ALH84001 has been on earth for 13,000 years has been used by some scientists to support which of the following claims about ALH84001?

A. ALH84001 may not have originated on Mars.
B. ALH84001 contains PAH’s that are the result of nonbiological processes.
C. ALH84001 may not have contained PAH’s when it landed on Earth.
D. The organic molecules found in ALH84001 are not PAH’s.
E. The organic molecules found in ALH84001 could not be the result of terrestrial contamination.

請問B為何不行?

Yet McKay’s team notes that the
particular combination of PAH’s
in ALH84001 is more similar to the
combinations produced by decaying
organisms than to those originating
form nonbiological processes.

而正確選項C,我一直想不通,如何推出答案
這段文章要如何推出

For example,
ALH84001 has been on earth for
13,000 years, suggesting to some
scientists that its PAH’s might have
(25) resulted form terrestrial contamination
我知道了,因為ALH84001 來自火星,而PAH是受到地表污染的話,表示ALH掉落到地球時,沒包含PAH


不過B似乎解釋另一種推測,該如何排除?

[ad264]

回覆
GWD-3-Q5為何不能選C
整篇文章是懷疑火星有沒有生命，不是懷疑這個石頭是不是從火星來
此題問「來自火星」
C答案選項有個字question (質疑)就錯了

GWD-3-Q7
文章只有用13,000去推測此物已經受到地球的污染，換句話說，懷疑者承認有生命跡象物質，只不過這是受污染。不是說他是非生物。再從另一個角度看，年代長遠跟生命跡象並非有絕對關係，3000年不能證明有生命還是沒生命，不是嗎？