independently of....earth's outer layers
independently of
主谓一致+并列结构前后平行,BE的how引导的句子和名词结构不平行
后面的平行结构studies of A and of B 完美的平行结构
找对主语the discovery,注意平行结构the studies of ... and of .....
The discovery / that Earth's inner core rotates independently of and more quickly than Earth's outer layers / is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth's magnetic field.
首先是study of sth 而不是how to,其次是discovery responsible for advancing不是core
主语discovery 谓语动词用is
【做错】主语discovery,谓语单数,排除CDE; A does B adv. of and more adv. than C句型;of the flow of heat和of the formation 形成完美平行,排除B
主语是discovery!!! 不要只看横线的!!! 主谓不一致C/D E主句缺主语 or logic杀 B of how and the fomation不平行杀
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