摘要:在时间或条件状语从句中,一般用一般现在时代替一般将来时. eg. Tom will write to me when he gets there. 4.be going to +动词原形也可表示将来时. (1).表示主观意愿.打算等. eg. He's going to learn English next term. (2).根据已有迹象,可能要发生的情况 eg. Look at the black clouds! ----It is going to rain. D:现在进行时棗表示目前或目前阶段正在进行的动作. 结构: am/is/are + 动词的-ing形式 用法: 1.表示目前发生,常用时间状语有:now,at the moment 等,并常出现在祈使句的句子中,与 look, listen连用. eg. Are you writing a letter to your father at the moment? Listen! She is singing in the next room.

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