冠词

问题描述:

冠词
While he was investigating ways to improve the telescope,Newton made ( ) discovery which completely changed ( ) man's understanding of colour.
A a;x
B a;the
C x;the
D the;a
要理由

选择A 原因:1,a discovery :“a ”通常用在一个很具体的对象之前(此句的具体对象是“发现”(discovery),而“the ”通常用来表示泛指对象.2,man'sunderstanding of colour 译成“人类对色彩的认识” .这里man'...