(想看Dustin獨家第一手解析OG2016的新題,請看這裡:
https://www.ptt.cc/bbs/GMAT/M.1434559815.A.A8E.html
https://www.ptt.cc/bbs/GMAT/M.1434561584.A.C29.html)
今天要來用OG2016的新題,解析一下我第一遍看題時腦中所想的東西。
Most attempts by physicists to send particles faster than the speed of light
involve a remarkable phenomenon called quantum tunneling, in which particles
travel through solid barriers that appear to(5) be impenetrable.
(專有名詞後配修飾語定義:可能考細節題) If you throw a ball at a wall,
you expect it to bounce back, not to pass straight through it. (類比/舉例:
可能考作用題)Yet subatomic particles perform the equivalent feat. (看到Yet
轉折關鍵字先判斷有無態度上的轉換:這邊沒有,只是在做對比)(對比考相同相異)
Quantum theory says that there is a distinct, albeit small, probability
that such a particle(10) will tunnel its way through a barrier;(出現「理論」
,可能考細節題) the probability declines exponentially as the thickness
of the barrier increases.(出現thickness 跟probability的線性關係:可能考
推論題)
-------------Context+Topic:定義與介紹量子穿隧效應-------------
Though the extreme rapidity of quantum tunneling was noted as
early as 1932, not until 1955 was it hypothesized—by Wigner and(15) Eisenbud
—that tunneling particles sometimes travel faster than light. (看到though
讓步關鍵字先判斷有無態度:這邊沒有,只是在做事實的對比)(對比考相同相異)
(兩個以上的年代出現:可能考細節題)
(看到人提出想法:「W跟E hypothesized」,可能會考何者為真題:W.E.會認同
下列何敘述)Their grounds were calculations that suggested that the time
it takes a particle to tunnel through a barrier increases with the thickness
of the barrier until tunneling time(20) reaches a maximum; beyond that
maximum, tunneling time stays the same regardless of barrier thickness.
This would imply that once maximum tunneling time is reached, tunneling
speed will increase without limit as barrier thickness(25) increases.
(看到tunneling time與barrier thickness的線性關係:可能考推論題)
-------------Arg:學者W跟E提出假說------------
(發現假說後的文章篇幅剩不到一半--不會再有態度轉換)
Several recent experiments have supported this hypothesis that tunneling
particles sometimes reach superluminal speed. According to measurements
performed by Raymond Chiao and colleagues, for example, photons can pass
through(30) an optical filter at 1.7 times the speed of light.
(證據、舉例:考作用)
-------------Eval:引入實驗支持---------------
--
Dustin Deng (一戰自修760,AWA 5.5)
Dustin/A2GMAT 全科機經班:
http://goo.gl/forms/nYr9M7nhwy
https://www.ptt.cc/bbs/GMAT/M.1433954252.A.2EC.html
GMAT自修資源部落格:
http://dustingmat.blogspot.tw
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https://www.facebook.com/groups/A2GMAT/
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※ 文章網址: https://www.ptt.cc/bbs/GMAT/M.1434584817.A.2FC.html
※ 編輯: danyuchn (42.73.245.177), 06/18/2015 07:47:30
※ 編輯: danyuchn (42.73.245.177), 06/18/2015 07:51:02