Answer Keys and Explanations

　　1.　　T　　 見第一段。“give sth the thumbs up”為“接受“的意思。

　　2.　　F　　 見第三段�！癟hat's still some way from proving that the theory, proposed in the mid-1990s by biophysicist Luca Turin, is correct.”意即“現(xiàn)在尚無法證實生物物理學家Luca在九十年代中期提出的理論是否正確。”

　　3.　　NG

　　4.　　T　　見第六段“Molecules that look almost identical can smell very different — such as alcohols, which smell like spirits, and thiols, which smell like rotten eggs.”“identical”一詞是“完全相同”的意思。這句話是說alcohols和thiols的分子結構看起來一樣，但是它們的味道卻相去甚遠。

　　5.　　Luca Turin　　　　　　文章第二，三和七段均可看出Luca的理論即人類的鼻子是通過感覺氣味分子的震動來分辨氣味的。

　　6.　　Virginia　　　　　見第四段。

　　7.　　tongue　　　　　見第五段“This molecular 'lock and key' process is thought to lie behind a wide range of the body's detection systems: it is how some parts of the immune system recognise invaders, for example, and how the tongue recognizes some tastes.”

　　8.　　the atoms　　　　　　　見第八段“This would explain why isotopes can smell different: their vibration frequencies are changed if the atoms are heavier.”

　　9.　　vibration-assisted electron tunneling　　　　　見第九段“"The question is whether this is possible in the nose," says Stoneham's colleague, Andrew Horsfield.”句中的代詞“this”指句首的“vibration-assisted electron tunneling”。

　　10.　Andrew Horsfield 見第九段結尾。

　　11.proper experimental verification 見第十三段。

　　12.their computed vibrations　 見第十四段。