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【GMAT句子改错SC】-8477-OG16

浏览次数:463 日期:2017-05-12 09:57:04
Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the Sun but have never been sighted on the Sun’s poles or equator.

Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the 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 dark spots 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


【申友解析】


正确答案:A



本句的主干是:Sunspots are visible,have never been 是后面句子的谓语。
A 选项正确
B that never have been sighted on the surface of the Sun 语意不明,并且,on the surface of the Sun the Sun’s poles or equator,这两个短语放在一起不符合语法规则,一个句子里俩主语。
C,D选型的although引导让步状语从句,但是缺少了主语和谓语
E 选项 不符合英语的表达方式


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