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________ advertisements are of great help, I don’t think we should entirely rely on them.

A.Because          B.Since             C.Once             D.While

 

【答案】

D

【解析】

试题分析:考查连词:A. Because因为  B. Since自从,既然, C. Once 一旦D. While虽然,然而,当…时候,句意:虽然广告对我们很有帮助,但我想我们不该完全依赖它们。while表示虽然,有转折的意思。选D。

考点:考查连词

点评:连词主要看上下文的逻辑关系,短语的辨析没有捷径可走,只能在平时的学习中加强记忆。While的含义比较多,是高考常考点。

 

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