2014高考英语复习资料：定语从句关系代词as的考查

　　高考试题中，主要从以下角度考查定语从句：关系代词as的考查。关系代词as引导限制性定语从句时既可指人又可指物。它只能替代由such，the same等修饰的先行词;as引导非限制性定语从句时，可放于句首，句中或置于句尾，而which则只能置于主句之后。但如果定语从句为否定句或表示否定意义，使用which。As引导的定性定语从句有"正如"之意，而which引导的没有。更多有关2014高考英语的信息可登录留学群英语频道，欢迎收藏本站(CTRL+D即可收藏)!

　　13)Our teacher set us such a difficult maths problem _____ we could not work out.

　　A. that B. which C. as D. even

　　选C。

　　(14)Carl said the work would be done by October , _______ personally I doubt very much.

　　A. it B. that C. when D. which

　　选D。

　　(15)________ is reported in the newspaper , talks between the two countries are making progress.

　　A. It B. As C. That D. What

　　选B。