With the development of high technology, more and more new things ______ in the

题型：不详难度：来源：

With the development of high technology, more and more new things ______ in the past years.

A．discovered	B．have discovered
C．had been discovered	D．have been discovered

答案

D

解析

    
试题分析:考查动词时态。固定短语in the past years“在过去的几年里”是现在完成时的标志，排除A、C选项，而由语境可以判断new things 和discover是被动关系，应该用被动语态，所以D选项正确。句意：随着高科技的发展，在过去几年里越来越多的新事物被发现了。