初中英语时态 一、 一般现在时:
1.概念:经常、反复发生的动作或行为及现在的某种状况,也可以指个人的能力、喜好等。
2.时间状语:always, usually, often, sometimes, 以 every 为首的:every week (day, year, month...), once a week, on Sundays,
3.肯定句基本结构:
含 be 动词: 主语+am/is/are+.其它
I am a student. 含实义 V:主语+实义 V(如主语为第三人称单数 he/she/it/my friend…….,动词上要加(e)S 简称“三单”)
I have a car. He likes playing basketball. 4.否定形式:
含 Be 动词:主语+am/is/are+not+其它
I am not a student. 含实义 V:
主语+don’t/doesn’t+V 原+其它(即时态的谓语动词若为行为动词,则在其前加 don't,如主语为第三人称单数,则用 doesn't,通常还原行为动词。)
I don’t have a car. He doesn’t like playing basketball. 5.一般疑问句:
含 Be 动词:把 be 动词放于句首; Are you a student? 含实义 V: Do/Does +主语+V 原+其它
(用助动词 do 提问,如主语为第三人称单数,则用 does,同时,还原行为动词。)
Do you have a car?
Yes, I am/ No, I am not.
Does he like playing basketbal?
Yes, he does/ No, he doesn’t. 二、 、 现在进行时:
1.概念:表示现阶段或说话时正在进行的动作及行为。
2.时间状语:now, at this time(在这时), look ! 看
listen! 听 3.肯定句基本结构:主语+am/is/are+doing
I am singing now. 4.否定形式:主语+am/is/are+not+主语+doing.
Mary is not talking on the phone. 5.一般疑问句:把 be 动词放于句首
Are
they playing basketball?
Yes, they are / No , they aren’t.