文档介绍：一、一般现在时
:经常、反复发生的动作或行为及现在的某种状况。
: Always, usually, often, sometimes, every week (day, year, month…), once a week(day, year, month…), on Sundays,
:动词原形(如主语为第三人称单数,动词上要改为第三人称单数形式)
:主语+am/is/are +not+其他; 此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,同时还原行为动词。
:把be动词放于句首;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。
:It seldom snows 。
He is always ready to help 。
Action speaks louder than 。
二、一般过去时
:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。
:ago, yesterday, the day before yesterday, last week, last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
:主语+动词或be的过去时+名词
:主语+was/were +not+其他;在行为动词前加didn't,同时还原行为动词。
:was或were放于句首;用助动词do的过去式did 提问,同时还原行为动词。
:She often came to help us in those 。
I didn't know you were so 。
三、一般将来时
:表示将要发生的动作或存在的状态及打算、计划或准备做某事。
:Tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc.
:主语+am/is/are +going to + do+其它;主语+will/shall + do+其它
:主语+am/is/are not going to do ;主语+will/shall not do+其它
:be放于句首;will/shall提到句首。
:They are going to have petition with us in 。
It is going to 。
四、一般过去将来时
:立足于过去某一时刻,从过去看将来,常用于宾语从句中。
:The n