The golden crab of the Gulf of Mexico has not been fished commercially in great numbers, primarily on account of living at great depths—2,500 to 3,000 feet down.
on account of living
on account of their living
because it lives
because of living
being they live
题目分析:
本题中介词on account of和because of都是“因为”的意思,没有区别。
选项分析:
A选项:on account of是介词,身后的 living at great depths—2,500 to 3,000 feet down是动名词短语。在语法上,动名词在句中是没有逻辑主语的,如果想给动名词加逻辑主语,必须用所有格的形式,例如:
James’s playing cards
因此,本选项中的live是没有逻辑主语的。在整句的逻辑上,居住在2500英尺深的必须是crab,否则The golden crab of the Gulf of Mexico has not been fished commercially in great numbers不能和living at great depths—2,500 to 3,000 feet down之间形成因果关系(on account of)。
B选项:代词their是复数代词,在句中没有合理的指代对象。crab是单数名词。
C选项:Correct. 本选项在语法和逻辑上均是正确的。
D选项:本选项错误同(A)。
E选项:being无法表达出前后两者的因果关系,且它也不是连词。另外,代词they的指代错误同选项(B)
第二次做选对了。