Question

As is announced in today's papers,the Shanghai Export Commod

Answer 1

as单独引导定语从句时,先行词可以是一个词,也可以是一个句子或短语.例如：

(1) She is late,as is often the case.她迟到了,这是经常的事.(先行词是整个主句)

(2) To shut your eyes to facts,as many of you do,is foolish.对事实视而不见--你们好多人都是如此的愚蠢.(先行词是不定式短语)

这句话应该是第一种,先行词是整个后面的主句.意思是“今天的报纸上有宣布,上海商品出口贸易交易会也在周日举行”