初中英语动词时态总结.doc

外语下载中心 http://down. 外语下载中心 http://down. 英语时态总结Ⅰ、一般现在时 1 、概念: 1 )表示经常性或习惯性的动作,常与表示频度的时间状语连用。时间状语: always, usually, often, sometimes, seldom, never, every day, twice a week, on Sunday, etc. (提问用 How often ) 例: I leave home for school at7 every morning. 2) 客观真理,客观存在,科学事实。例: The earth moves around the sun. 地球绕太阳转动。 Shanghai lies in the east of China. 上海位于中国东部。 3) 格言或警句。例: Pride goes before a fall. 骄者必败。注意: 宾语从句中, 即使主句是过去时, 从句谓语是客观真理也要用一般现在时例: Columbus proved that the earth is round. 哥伦布证实了地球是圆的。 2 、结构:表状态 S+ am/is/are+ P (句中有实义动词不用 be) 表动作 S+V 原+O (若主语是单三人称,谓动加 s/es 。) 3 、句式变化: 变疑问,有 be把 be 提到主语前;无 be 在主语前加 do/does ,谓动变为原形。变否定,有 be在 be 后加“ not ”;无 be 在主语后加 don ’ t/doesn ’t, 谓动变为原形。例: ① They are in the classroom. → Are they in the classroom? Yes, they are./ No, they aren ’ t. → They aren ’t in the classroom ② He often waters the flowers .→ Does he often water the flowers? Yes, he does. / No, he doesn ’ t.→ He doesn ’t often water the flowers Ⅱ、一般过去时 1、概念: 1 )表示在确定的过去时间里所发生的动作或存在的状态。常用时间状语: yesterday, the day before yesterday, last week, just now, an hour ago, the other day, in 1982. at the age of 5, one day, long long ago, etc. 例: Where did you go just now? 2 )表示在过去一段时间内,经常性或习惯性的动作。例: When I was a child, I often played football in the street. 2 、结构:表状态 S+ was/were+ P 表动作 S+V 过去式+O (注:句中有实义动词不用 be) 3 、句式变化: 变疑问,有 be把 be 提到主语前;无 be 在主语前加 did ,谓动变为原形。变否定,有 be在 be 后直接加“ not ”;无 be 在主语后加