精选优质文档-倾情为你奉上文章整理人:风过无痕整理时间:2011年专四必备语法一、时态、语态 时态、语态需要掌握的要点:1.表达将来时的形式:(1)在时间、条件、让步从句中,一般现在时代替将来时,但要注意区别从句的类型,如:Ill tell him when you will ring again. 我告诉他你什么时候再来电话。(宾语从句)比较:Ill tell him when you ring again.你再打电话时我告诉他。(状语从句)(2)在make sure, make certain, see (to it) 后的that从句中,谓语动词用一般现在时代替将来时,如:See to it that you include in the paper whatever questions they didnt know the answer to last time.(include 不能用will include或其他形式)2.完成时是时态测试的重点,注意与完成时连用的句型和时间状语