95%以上英语专四语法
一、时态、语态 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:I’ll tell him when you will ring again. (宾语从句) 比较:I’ll tell him when you ring again. (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 didn’t 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: (1)by/between/up to/till +过去时间、since、by the time/when +表示过去发生情况的从句,主句用过去完成时。如:We had