小学各时态讲解及练习(共14页).doc

精选优质文档-倾情为你奉上一般现在时Step 1: 时态概念 时态，指在不同的时间条件下，动词的形式。数轴对比各种时态Step 2: 用法1.经常性或习惯性的动作，常与表示频度的时间状语连用。如： every , sometimes, on SundaysI go to school at 7 every morning. Sometimes I am careless. I have piano lessons on Sundays.2.客观真理，客观存在。The earth moves around the sun.Shanghai lies in the east of China.3.在格言或警句中。Pride goes before a fall.骄者必败。Step 3:一般现在时的谓语动词1.当谓语是be动词时 主语+be+表语 I -