小学英语四种时态的比较

小学英语四种时态的比较时态定义标志词谓语形式疑问形式否定式提问谓语一般现在时1、 当前存有的状态2、 经常性、习惯性的动作频度副词：例：always, usually, often,sometimes, every day(week、Sunday )、never1、主语+系动词be( am, is, are)2、主语+行为动词原形；3、主语为第三人称单数时V + s, 或 es1、 be 放主语前2、 主语前加do 或does (动词还原)1、 be + not 2、 动词前加 dont 或doesnt (动词还原)What do /does + 主语+ do?如：What does she do every day? She reads English every day.现在实行时表示当前正在发生的动作或存有的状态1、提示语：look! Listen! now、See?2、At +时间点3、 前面有祈使句4、 IIts+具体时间5、 特定情景主语+be (am, is, are ) + V-ingbe放在主语前be + notWhat is / are +主语+ doing？如：What are you doing now? Were listening now.一般将来时1、 表示计划或打算做某事2、 将要发生的动作或存在的状态1、 tomorrow, the next day, this evening this afternoon, soon2、 the day after tomorrow, next (week,term,month,year)3、3、 in +未到年份，如in 2008 1、 主语+be going to +V 原形2、 主语+will+V 原形3、 go, come, leave 等用现在进行时表示将来4、 want 用一般现在时表将来be 或will 放主语前be 或 will 后加 notwill not = wont 1、What is/ are +going to do?2、What will + 主语+do?如：What will he do next week? He will play basketball next week.一般过去时表示过去时间内发生的动作或存在的状态1、 yesterday, last (week,year,month)the day before yesterday,just now等2、two years ago/ at that time/ before等3、in +过去年份1、主语+动词be 的过去时（was, were）2、主语+行为动词的过去式1、 was / were 放主语前2、 主语前加did (动词还原)1、 was/ were + not 2、 动词前加didnt (动词还原)What did + 主语+ do?如：What did Tom do last night? Tom did his homework last night.