Question

____paragraph is a group of sentences about some related subject. Readers must know what the main idea of ___paragaph is in order to understand ___information they are reading.

A．The ,a ,the

B．A,the ,the

C．A,a the

D．The ,the ,the

Answer 1

B

考查冠词的用法。a/an表示泛指，而the表示特指。句意“一段话是有关某物的句子的意群。为了理解有效信息，读者必须先知道这段话的大意。”第一空是泛指，第二空和第三空是特指。故选B。