补充解释一下原题给的一句解释, In C, the expression a type whose development was independent of a common ancestor states the opposite of the original point—that the type of mammal mentioned was thought to have developed independently of the main stem of mammalian evolution, but still to have descended from a common ancestor. 症结有三个, 第一个,expression是指什么; 第二个,original point是指哪句的point; 第三个,破折号后面的that的内容是指什么; 第一,expression指a type whose development was independent of a common ancestor 而不是rather than a type whose development was independent of a common ancestor ,解释中很清楚的表示了出来,翻译过来看看, 说(C选项所描述的)这个type与common ancestor无关是与original point相反的; 第二,original point不是指‘B所表达的意思’,也不是指‘rather than前面的...are a brach of...’,而应该是指整个本句话想要表述的意思; 第三,that后面的解释绝对是在说这个original point而不是那个opposite point,分析一下这句话, that the type of mammal mentioned was thought to have developed independently of the main stem of mammalian evolution,but still to have descended from a common ancestor. the type of mammal mentioned是说文中的这个发现所描述的对象,就是Australian egg...mammals,整句翻译过来看看, (original point想表述为)这个Australian egg...mammals被认为是从main stem独立地进化发展而来的,但是仍然是descended from(从...遗传)这个common ancestor的; 为什么要用一个but来表示后面的意思呢,原因就是要强调,回应,和反驳C选项所说的be independent of(跟common ancestor无关的)这个意思; 我再把整句话用白话翻译一下, C选项中所说的这个type与common ancestor无关是错的,并且是与原句要表达的观点相反的,原句想说这个type是从main stem独立地发展进化而来的,但是仍然是从common ancestor中遗传过来的,而不是像C所说的是与common ancestor没有关系的; |