求助，OG 13 SC 48

dadaowuxing

48. It is called a sea, but the landlocked Caspian is actually the largest lake on Earth, which covers more than four times the surface area of its closest rival in size, North America's Lake Superior.

A. It is called a sea, but the landlocked Caspian is actually the largest lake on Earth, which covers
B. Although it is called a sea, actually the landlocked Caspian is the largest lake on Earth, which covers
C. Though called a sea, the landlocked Caspian is actually the largest lake on Earth, covering
D. Though called a sea but it actually is the largest lake on Earth, the landlocked Caspian covers
E. Despite being called a sea, the largest lake on Earth is actually the landlocked Caspian, covering


有谁可以帮我解释下为什么后面要用Covering而不是which covers吗？ 是因为which一般指代靠近的词吗？还有个问题能帮我分析下插入语，同位语还有定语之间的差别吗？我语法比较薄弱，谢谢大家的帮忙。

LeannaChina

which并不一定指代最近的词，这里的on earth是修饰成分，which可以指代lake，并不会引起歧义。

但gmat是选最优答案的，这题显然C更好。

主系表结构后面的分词状语，不表示伴随，而是起补充说明作用。

dadaowuxing

谢谢。最后句点醒了我。但是书上好像说which在这里指代的是earth，所

以我表示很疑惑。继续请求大家帮我分析分析下插入语，同位语还有定语之

间的差别。