Teams have been known to come from 27 to win, but the chances of overcoming that kind of lead are slim.
答案：(C) behind
【運動慣用語】come from behind 固定用法，表示「從落後局面逆轉獲勝」，符合後文「扭轉這種領先差距的機會很渺茫」的語境。above／down／underneath 都不是這個慣用語的固定搭配。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
看到 come from ___ to win，你知道整句在講逆轉獲勝，於是要找一個表示落後的字。down 這時候特別誘人，因為 be down by ten points（落後十分）確實是英文裡真實存在的說法，運動報導天天在用。問題不在 down 的意思，在它能不能接在 from 後面。
這一格考的是一個整組的慣用語：come from behind。劍橋詞典把它收為慣用語、標示 C1，正體中文的釋義就是「（比賽中）成功扭轉劣勢，後來居上」，整組記起來就好，不必拆開分析 behind 在裡面算什麼詞性。behind 之所以是那個字，可以掛回國中學過的用法：Our team is 3 points behind the winners.（我們這隊落後冠軍三分）——behind 除了「在……後面」，本來就有「落後」這一層意思。再用篇內驗算：前一句問的是「上半場就領先三十分的那一隊，還是它的對手比較可能贏」，同一句後半又說 the chances of overcoming that kind of lead are slim（要扭轉那樣的領先差距，機會很渺茫），可見這一格說的正是「從落後的位置追上來」。
down 是本題最容易選的一個，而且它的落後義是真的——劍橋收有 The Cavaliers were 20 points down at half-time.（騎士隊中場休息時落後二十分）。但請看劍橋另一個例句：Michigan, down (by) ten points at the half, came back to win the football game.（密西根隊中場落後十分，後來反敗為勝。）同樣是落後、同樣是 at the half，劍橋配的動詞是 came back，不是 come from——down 走的是「幾分 down」這種形容詞式的說法，接不到 from 後面；能接在 from 後面表示落後位置的是 behind。above（在……之上）與 underneath（在……下方）都是講空間位置，一個方向還相反，一個不用在比分上。
come from behind（從落後中逆轉獲勝）、come back to win（反敗為勝）、be ＋ 數字 ＋ points down（落後幾分）、be ＋ 數字 ＋ points ahead（領先幾分）、overcome a lead（扭轉領先差距）、slim（機會渺茫的）
Which would you wear to a football game, a sweater or a raincoat? 26 the raincoat if you thought there was a good chance of rain. Which basketball team is more likely to win, one that is 30 points ahead at the half or its opponent? Teams have been known to come from 27 to win, but the chances of overcoming that kind of lead are slim.
28 of us can be perfectly sure about how things will turn out in the future. But we can, and often do, think of the possibilities. We can try to guess 29 this or that might happen.
In some cases mathematics can help make these guesses more accurate. The branch of mathematics that helps make our guesses more accurate is called probability. Probability is the science of 30. It is among the fastest growing and most useful parts of today's mathematics.