发布网友 发布时间:2022-04-24 14:34
共3个回答
热心网友 时间:2023-10-16 15:33
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.
2.时间状语:always,usually,often,sometimes,every week (day,year,month…),once a week,on Sundays,
3.基本结构: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)
4.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doesn't,同时还原行为动词.
5.一般疑问句: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.
6.例句:.It seldom snows here.
He is always ready to help others.
Action speaks louder than words.
二、 一般过去时:
1.概念: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.
2.时间状语:ago,yesterday,the day before yesterday,last week,last(year,night,month…),in 19,just now,at the age of 5,one day,long long ago,once upon a time,etc.
3.基本结构:be动词;行为动词 的过去式
4.否定形式:was/were+not;在行为动词前加didn't,同时还原行为动词.
5.一般疑问句: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.
6.例句:She often came to help us in those days.
I didn't know you were so busy
三、 一般将来时:
1.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.
2.时间状语:tomorrow,next day(week,month,year…),soon,in a few minutes,by…,the day after tomorrow,etc.
3.基本结构:am/is/are/going to + do;will/shall + do.
4.否定形式:was/were + not; 在行为动词前加didn't,同时还原行为动词.
5.一般疑问句:be放于句首;will/shall提到句首.
6.例句:They are going to have a competition with us in studies.
It is going to rain.
四、 现在完成时:
1.概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态.
2.时间状语:recently,lately,since…for…,in the past few years,etc.
3.基本结构:have/has + done
4.否定形式:have/has + not +done.
5.一般疑问句:have或has.
6.例句:I've written an article.
The countryside has changed a lot in the past few years.
热心网友 时间:2023-10-16 15:34
这三个时态最好区别了
一般过去时表示过去某个时间发生的动作,常与表示过去的时间状语连用,如 yesterday( morning,afternoon,evening),two days/years...ago, last night/week/month....等
一般将来时 表示将来某个时间要发生的动作,常与表示将来的时间状语连用,如 tomorrow(morning,afternoon,evening), next week/month/year....,等
现在完成时表示过去发生的某个动作对现在造成的影响或结果,常与 already,yet,ever,never,just,before, for+一段时间,since+表示过去的时间点 等连用
热心网友 时间:2023-10-16 15:34
一般过去时:表示过去某时或某段时间的状态、习惯、动作或发生的事情。谓语动词用过去式,do - did , go - went ...
I went to see her twice last month.
上个月我去看了她两次。
We used to swim every day.
我们曾经每天游泳。
一般将来时:表示将来的习惯动作、要做的事,常用表示将来的时间状语。
1. 一般将来时态构成: be going to do sth.
They are going to have a party tonight.
他们今晚要举办一个晚会。
2. “ to be + 不定式” ,表示安排或命令等。
The film is to be shown this Saturday.
3. to be about to do... 即将开始
The meeting is about to begin.
会议马上开始。
4. will / shall do sth. 意志将来时
He will go at once.
有急事,待续...
他决定马上走。