14. Sunspots, vortices ofgas associated with strong electromagnetic activity, are visible asdark spots on the surface of the Sun but have never been sighted on theSun's poles or equator. (A) are visible as darkspots on the surface of the Sun but have never been sighted on(B) are visible as darkspots that never have been sighted on the surface of the Sun(C) appear on the surfaceof the Sun as dark spots although never sighted at(D) appear as dark spotson the surface of the Sun, although never having been sighted at(E) appear as dark spotson the Sun's surface, which have never been sighted on
此题的正确答案是A,想问一下C为什么错了呢?Although引导让步状语从句,如果主语和主句主语一致,且谓语是be动词,那么主语和谓语不是都可以省略吗?另外E选项,OG解释说:this phrasing makes the sentence somewhat awkward and unclear,这里的this phrasing指的是什么呢?-- by 会员 鹤源 (2011/10/20 10:32:14)
B不对是显而易见的。C中Although引导从句,