一、一般现在时主要用于:1 、表示经常性或习惯性动作。e.g. It seldom snows here.2 、表示现在的特征或状态。e.g. He is always ready to help others.3 、普遍真理。e.g. Action speaks louder than words.4 、剧情图片介绍,背景说明,动作解说。e.g. (Tom enters the room and sits at the table)Doctor : What's your trouble, young man?Tom : I've ...