The only light that comes from TrES-2b is a faint red glow, 17 the heated coils on an electric stove or a very dim light bulb.
答案：(D) similar to
similar to the heated coils on an electric stove（類似電爐上發熱的線圈）表示這顆行星發出的微弱紅光，類似電爐發熱線圈或昏暗燈泡的光；associated with／committed to／familiar with 均不符合此處的比較語意。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個都是「形容詞或過去分詞加介系詞」的組合，而且四個介系詞都不一樣，會讓人以為可以靠介系詞判斷；但四個選項各自都把介系詞帶在身上，看介系詞這一招在這裡完全幫不上忙。
看空格兩邊擺的是什麼。前面是 a faint red glow（微弱的紅光），後面是 the heated coils on an electric stove or a very dim light bulb（電爐上燒熱的線圈，或一顆很暗的燈泡）。兩邊都是會發出微弱紅光的東西，作者是拿日常看得見的東西來幫你想像那顆行星長什麼樣。這是打比方，不是因果、不是投入、也不是熟不熟悉，所以用 similar to（與……相似）。這種「抽象或陌生的東西後面接一個日常物品」的句子，通常是在做比喻，先往「像什麼」的方向想最省力。
associated with（與……有關聯）講的是兩件事之間有牽連（Smoking is associated with lung cancer），但紅光與電爐線圈之間沒有牽連，只是長得像。committed to（致力於、投入）的主詞要是人或組織，一道光不會投入什麼。familiar with（熟悉）的主詞也必須是人——是人熟悉某樣東西；若要說「這樣東西為某人所熟悉」，英文得換成 be familiar to somebody，介系詞不同、主詞與受詞的位置也對調，這一組是高頻的辨義點，值得整組記起來。
be similar to（與……相似）、be associated with（與……有關聯）、be committed to（致力於、投入）、be familiar with（某人熟悉某事物）、be familiar to（某事物為某人所熟悉）、a dim light bulb（昏暗的燈泡）
Astronomers have discovered the darkest alien planet known to exist in the galaxy.
The Jupiter-sized planet, known as TrES-2b, is located in another solar system some 750 million light years away from Earth. Reflecting less than one percent of the sunlight 16 on it, TrES-2b is less reflective than black acrylic paint, and is blacker than coal. The only light that comes from TrES-2b is a faint red glow, 17 the heated coils on an electric stove or a very dim light bulb. Researchers believe this results from its extremely hot atmosphere, which is as high as 1,800°F (980°C), 18 its closeness to its sun—its source of energy.
So how does this planet manage to absorb about 99% of the light it receives from its sun? 19 researchers are not completely sure, they believe it could be because its atmosphere is composed of light-absorbing chemicals like vaporized sodium or even some elements whose existence is not yet known. Although they may never be able to 20 exactly how the planet remains so stealthily hidden, scientists are sure of one thing—there are many more even darker planets out there just waiting to be discovered!