Digging in sediments in northern China, evidence has been gathered by scientists suggesting that complex life-forms emerged much earlier than they had previously thought.
evidence has been gathered by scientists suggesting that complex life-forms emerged much earlier than they had
evidence gathered by scientists suggests a much earlier emergence of complex life-forms than had been
scientists have gathered evidence suggesting that complex life-forms emerged much earlier than
scientists have gathered evidence that suggests a much earlier emergence of complex life-forms than that which was
scientists have gathered evidence which suggests a much earlier emergence of complex life-forms than that
题目分析:
题目的开头是一个现在分词短语(Digging in sediments in northern China),句首出现的现在分词短语肯定是伴随状语。
选项分析:
A选项:伴随状语中的现在分词的主语在语法上和其修饰的句子的主语相同,在本选项中,其主语为evidence。但是,在逻辑上,能挖出沉淀物的只能是“人”,而不能是“证据”。比较对象不对等。本选项than后面用了过去完成时,而过去完成时表达的是在某个过去时的过去,即,emerged的过去。但显然地,“科学家认为”这个事件不可能发生在emerge这个动作之前。
B选项:Digging的主语错误同(A);本选项中suggest的宾语是一个名词短语(a much earlier emergence of complex life-forms),这是不正确的,suggest(表明)身后通常只能跟宾语从句。这点考查了“名词和从句的区别”。用之于本题,即:
evidence gathered by scientists suggests a much earlier emergence of complex life-forms
是不正确的。这是因为,证据表明的事情,通常是一个事实,而虽然“出现(emerge)”这个动作有终点,但是这个事实是一直存在的,即,事实不具有时间的概念,自然没有时间终止点。只能用宾语从句。
另外,比较对象错误同(A)。
C选项:Correct. 本选项在逻辑和语法上均是正确的。
D选项:suggest的宾语是一个名词短语(a much earlier emergence of complex life-forms)错误同(B);比较对象不对等。that是代词,指代对象仅能是一个名词,而本题真正对比的应该是两种情况(真实情况vs科学家以前认为的情况)。
E选项:本选项错误同(D)。
digging in sediments的是scientists,排除AB
evidence是一个具体的“事件”,而不是某一个名词。
C suggesting的是一个具体的“事件“(that...)
D和E suggest的都只是“emergence”
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