.四大时态一般现在时知识要点：一、一般现在时的概念：1、表示经常性的动作或现在的状态。例：He gets up at six every morning. The boy is ill.2、表示现在的能力、特征、职业等。例：She dances well. My mother teaches English.3、表示普遍真理或客观事实。例：Summer comes after spring. The sun rises in the east.二、一般现在时的结构：1、句式结构：主语+谓语动词（动词原型或动词第三人称单数）+其他成分例：I go to school by bike. She goes to school by bus.三、动词第三人称单数变化规则：1、一般在动词后加s例：play-plays swim-swims jump-jumps2、以s, x, ch, sh, o结尾的单词加es例：guess-guesses mix-mixes
