Question

 AIDS is said        the biggest health challenge to both men and women in that area over the past few years.

A. that it is         B. to be         C. that is has been      D. to have been

 

Answer 1

【答案】

 D

【解析】：本题的基本句型是：It is said that…本句型可以转换为：sth/sb is said to…当有in/over the past +时间段做状语时句子要用完成时态，所以要选D。

【考点】：①考查It is said that 句型到sb/sth is said to的转换②使用现在完成时态的情况。

【易错点】：本题由于忽视了over the past few years这个短语容易选了B答案。

【备考建议】：表示现在完成时态的状语或句型有很多如要总结归纳如：①lately/recently②so far③since+时间点④by+时间点（现在）⑤It is +序数词+time that …⑥in/over the last/past + 时间段等等。