At other times the dreaded event from daily life simply occurs in a dream in its real-life form; 29 , the boy dreams of being bullied by the bigger boy. 30 scientific research, we have known more about the relationship between sleep and dreams.
答案：(A) Due to
語意「透過/因為科學研究，我們對睡眠與夢的關係有更多了解」，Due to（由於/因為）符合這個因果邏輯；In spite of（儘管）表達的是讓步/對立關係，跟「科學研究幫助我們了解更多」這個順向因果矛盾。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個選項都是好幾個字組成的一組，代進去一個一個唸，會覺得「靠科學研究」「就科學研究而言」聽起來好像都通。這一格先不要比語意，先看空格後面接的是名詞還是子句，一步就能砍掉一半。
先看結構：空格後面是 scientific research（科學研究），是一個名詞，不是子句；逗號後面 we have known more about ... 才是主要子句。所以空格要的是能直接接名詞、整組當一個介系詞用的那一型。As far as 先出局——它後面要接子句（as far as I know 就我所知），不能直接接名詞。Consisting of 也出局——它是分詞，若擺在句首，意義主詞必須與主要子句的主詞一致，而主要子句的主詞是 we，變成「我們由科學研究組成」，語意荒謬，是典型的垂懸分詞。剩下 Due to 與 In spite of，這時才用語意分：主要子句說「我們對睡眠與夢的關係了解得更多了」，而科學研究正是造成這個結果的原因，是順向的因果，不是「儘管有科學研究，我們卻還是……」的讓步，所以填 Due to。due to 與 owing to、because of 意思相同，都是幾個字合起來當一個介系詞用（劍橋 English Grammar Today 的 Prepositions 條目），認得就好，不必拆開分析。
In spite of（儘管）：讓步，要求前後互相牴觸，本句是順向的因果。As far as（就……而言、遠至）：後面要接子句。Consisting of（由……組成）：分詞，擺在句首會造成意義主詞對不上的垂懸分詞。
due to（由於）、owing to（由於）、because of（因為）、thanks to（多虧、由於）、in spite of（儘管）、the relationship between A and B（A 與 B 之間的關係）。
Basically, there are two kinds of sleep. One is Rapid Eye Movement (REM) sleep. In 21 , the brain waves of a sleeping person are similar to those of a waking person, and the eyes move about rapidly under the closed lids. 22 kind of sleep is Non-Rapid Eye Movement sleep.
Scientists have discovered that dreams happen mainly in REM sleep. Everyone dreams about 20 percent of their sleeping time. 23 people who say they never dream show about 20 percent of REM sleep. 24 these "non-dreamers" do their sleeping in a laboratory 25 researchers can wake them up and ask them whether they were having dreams the moment before, it 26 that they dream as much as others.
Events in daily life sometimes occur symbolically in dreams. 27 , a boy is having difficulties on the school playground because a bigger boy keeps bullying him. He may dream at night of being alone in the playground, 28 a lion. At other times the dreaded event from daily life simply occurs in a dream in its real-life form; 29 , the boy dreams of being bullied by the bigger boy.
30 scientific research, we have known more about the relationship between sleep and dreams. However, why a dream will take a certain symbolic form is still a mystery.