9. Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on surface of the Sun but have never been sighted on the Sun's poles or equator.
(A) are visible as dark spots on the surface of the Sun but have never been sighted on
(B) are visible as dark spots that never have been sighted on the surface of the Sun
(C) appear on the surface of the Sun as darkspots although never sighted at
(D) appear as dark spots on the surface of the Sun, although never having been sighted at
(E) appear as dark spots on the Sun's surface, which have never been sighted on
选A，OG 说C错在， although typically introduces a subordinate clause,which has a subject and a verb.
但是 OG 12 SC 98
98、Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over north America, they are named for the New Mexico site where they were first discovered in 1932.
A. Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over north America, they are named for the New Mexico site where they were first discovered in 1932.
B. Although named for the New Mexico site where first discovered in 1932, Clovis points are spear points of longitudinal grooves chipped onto their faces and have been found all over north America .
C. Named for the New Mexico site where they have been first discovered in 1932, Clovis points, spear points of longitudinal grooves chipped onto the faces, have been found all over north America .
D. Spear points with longitudinal grooves that are chipped onto the faces ,Clovis points , even though named for the New Mexico site where first discovered in 1932, but were found all over north America .
E. While Clovis points are spear points whose faces have longitudinal grooves chipped into them, they have been found all over north America, and named for the New Mexico site where they have been first discovered in 1932
选A,
B与D虽然可以通过其他原因排除
但是even though 与although并没有连接完整的句子呀，但是OG解释并没有说这两点错了。。。
WHY???是省略了还是怎么滴？even though, although 是否必须跟完整的句子呀？！
求NN 解释！
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发表于 2012-2-4 17:02:57
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