Question

He bought his girlfriend         diamond ring, but he was told that         diamond in that ring was an imitation glass.

A．a; the

B．a; /

C．the; a

D．/; the

Answer 1

A

第一空表泛指，ring为可数名词单数，故用 a,第二空表特指，特指前面提到的这枚戒指上的钻石，故用the .句意：他买了一枚钻戒给他女友，但是他被告知说戒指上的钻石是玻璃仿品。
点评：冠词的考查集中在the表示特指；a/an表示泛指。解答有关冠词的题型可以从两方面入手，一是习惯搭配，二是固定短语。对于固定短语平时应多读多记。