一般现在时、概念: 经常、反复发生的动作或存在的状态及 现在的某种状态。 1 、肯定式 1) 主语 + be (am/is/are)+ 表语 I am a student. It/ She/He is a teacher. You/They are classmates. 2) 主语 + 情态动词(can, must, may, need, shall ) I can speak English. She must go to school. 、构成形式:3). 3). 主语 主语 + + 行为动词( 行为动词( speak speak , , say say , , call call , , go, go, run run . . ) ) 1)I 1)I speak English. speak English. 2)She/He/It speaks English. 2)She/He/It speaks English. 3)They call me Tom. 4)He runs very fast. 注意:在一般现在时态的肯定句中, 当主语是第三人称单数(she, he, it