必须知道的英语时态标志解读.doc

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1. 一般现在时：sometimes, often, usually, always, regularly ,generally, every day,
once a week ,at prese nt ,no wadays, at the mome nt every …，ofte n, usually,
sometimes,always on Sun day
.概念:经常、反复发生的动作或行为及现在的某种状况。句末常有表示现在时
间的短语。
.基本结构:动词原形（如主语为第三人称单数，动词上要加（e So
.否定形式:am/is/are+not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does n't同时还原行为动词。
.一般疑问句：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。
.例句:.It seldom snows here.
He is always ready to help others.
Actio n speaks louder tha n words.
2. —般过去时:一般过去时常用的非持续性动词有 come, go, leave, start, die,
fini sh, become, get married等
Yesterday ,last week, three days ago, in 1980 ,the other day, last 一段时间 +ago,
the day before yesterday
: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。句末常有表示过去时间的短语。
.时间状语:ago, yesterday, the day before yesterday, lasteek（year, night, month
in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
.基本结构:be动词;行为动词
.否定形式:was/were+not;在行为动词前加did n't,同时还原行为动词。
.一般疑问句: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。
.例句:She often came to help us in those days.
I did n't know you were so busy.
3. —般将来时:。be going to, be to, be about to tomorrow … 一段时…，in+
间,soo n, the day after tomorrow概念: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。句末常有表示将来时间的短语。
.时间状语:tomorrow, n ext day(week, m on th, year …,so on, in a few minu tes,
by …,the day