时态的替代 ①在时间.条件和让步状语从句中须用一般现在时替代一般将来时.用一般过去时替代过去将来时. If it rains tomorrow, we won’t go fishing. Don’t get off the bus until it has stopped. ②The more-the more-句型中.前句起“条件状语从句 作用.故用现在时表将来. The harder you work, the greater progress you’ll make. ③after, before, as soon as等连词本身就暗示了时间的先后.因此可用一般过去时代替过去完成时.而不会产生时间上的混乱. I went to bed after I (had) finished my homework. The film star (had) left before the reporter arrived. He got down to work as soon as he (had) go to the factory. 【查看更多】
