Re: [請益] TPO18 The mystery of yawning
看板TOEFL_iBT (TOEFL_iBT托福)作者Dreamer77 (追夢)時間13年前 (2013/05/05 17:05)推噓0(0推 0噓 0→)留言0則, 0人參與討論串2/2 (看更多)
剛好看到前面有板有詢問這題
我反而是對於D選項為什麼不對想不明白
分不出B和D的差別...
※ 引述《Bonniepei (樂翻天唷)》之銘言：
According to conventional theory, yawning takes place when people are
bored or sleepy and serves the function of increasing alertness by reversing,
through deeper breathing, the drop in blood oxygen levels that are caused by
the shallow breathing that accompanies lack of sleep or boredom.
1. Which of the sentences below best expresses the essential information in
the highlighted sentence in the passage? Incorrect choices change the meaning
in important ways or leave out essential information
A It is the conventional theory that when people are bored or sleepy, they
often experience a drop in blood oxygen levels due to their shallow
breathing
B The conventional theory is that people yawn when bored or sleepy because
yawning raises blood oxygen levels, which in turn raises alertness.
C According to conventional theory, yawning is more likely to occur when
people are bored or sleepy than when they are alert and breathing deeply
D Yawning according to the conventional theory, is caused by boredom or
lack of sleep and can be avoided through deeper breathing
答案是B 想請問A為什麼不對??
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