扫描二维码，直接登录
题库 / OG2017V-SC-288
Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.
prevented from dissipating its acoustic energy as a result of
prevented from having its acoustic energy dissipated by
its acoustic energy prevented from dissipating by
its acoustic energy prevented from being dissipated as a result of
preventing its acoustic energy from dissipating by
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
CD，独立主格结构。D，being没有必要，排除
C correct
AD as a result 不对
B sound is prevented from（ having its acoustic energy dissipated） by boundaries
C its acoustic energy is prevented from dissipating by boundaries
对比BC，B的意思不对，boundaries 是帮助sound走更远的，而不是损害它的，并且by 既可以是接着prevented又可以是接着dissipated歧义
b water prevent 错误 这不是can 的平行并列啊。这完全是两个事情 不能连在一起说
e preventing的逻辑主语是sound这是不对的
e的话就变成sound prevent acoustic energy from dissipating了，显然不合逻辑AB都是sound is prevented，也不和逻辑
D being dissipated没必要，被动式用by表示动作发起者，而不是as a result of，且语义不符，as a result of表现的是因果关系
登录 或 注册 后可以参加讨论
AB prevented修饰distance 不符合逻辑
CD 独立主格 boundary prevent energy。。。正确 D being多余，被动by
E 逻辑主语错误
C和D：独立主格省略了连词with. D选项倒装还原后应该是as a result of boundaries in the ocean....., 缺逻辑主语 prevent energy from being dissipated. 另外这里being冗余，没有上下文的意思需要用到进行时。
C：正确。倒装还原为 Boundaries prevent energy from dissipating
2. CD較相像 (1)看出被動 by>as a result of (2) being dissipated 冗贅 刪掉D 剩CE
3. 這題還是要了解獨立主格結構 不然會誤以為 its ~ energy為distances的同位語 誤刪
如果看得出來是獨立主格結構 只是糾結句意 看到by可以想說有兩種可能1.表被動 2.採行手段
看到＿後面接N (boundaries) 它會是
(E) 手段嗎？句意：聲音(主語) 透過 海洋裡～～的邊界 來阻擋聲能消散 有點奇怪吧
(C) 如果是被動 句意：聲能是被海洋裡～～的邊界 所阻擋消散
C比較合理吧 所以選C
B选项：having...dissipated by...很wordy;
CD选项：C/D选项是独立主格结构with + 名词 + done + 介词，此处省略with；D选项being多余；
E选项：Preventing的主语sound了，错误；
有没有谁 能详细讲解一下
有没有谁 能详细讲解一下登录 或 注册 后可以参加讨论