Normally a bone becomes fossilized through the action of groundwater, which permeates the bone, washes away its organic components, and replaces them with minerals.
which permeates the bone, washes away its organic components, and replaces them
which permeates the bone, washes away its organic components, and those are replaced
which permeates the bone, washing away its organic components, to be replaced
permeating the bone, washing away its organic components, to be replaced
permeating the bone, washing away its organic components and replacing them
题目分析:通常情况下,骨头是通过地下水的一系列作用变成化石的,地下水会渗透到骨头中,冲走骨头的有机物质,并且用矿物质取代有机物质。
选项分析:
A选项:正确。which引导的定语从句,修饰underwater,之后说明了underwater会做的三个动作:渗透,冲刷,以及取代。
B选项:and后面是完整的一句话,此时,这句话不再是定语从句里的成分,而是和主句“bones become fossilized”并列,但“他们被取代”并不能和主句并列,而是属于underwater要做的动作之一;并且,定从里的两个谓语动词“permeates”和“washes away”之间没有连词,属于语法错误。
C选项:定语从句里,washing away成了修饰permeate的伴随状语,但逻辑上这两个动作之间应该是并列关系,而不是修饰关系。
D选项:doing和主句之间有逗号隔开,此时permeating是修饰主句谓语动词的伴随状语,且逻辑主语是和主句主语一致的,即bones。但很明显,并不能骨头渗透进骨头。
E选项:同D
AE中的them只能指代components,但是主语是a bone,平行的句子不是都应该作用于主语吗?A中最后一句话修饰的是前面那句啊.......我直接排除了AE,就因为觉得them指代错误。
登录 或 注册 后可以参加讨论