一般现在时;现在进行时;一般过去时;一般将来时和现在完成时.怎样造句
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一般现在时;现在进行时;一般过去时;一般将来时和现在完成时.怎样造句
I am a student.
I am now reading a book.
I wrote a letter just now.
I will go to China.
I have been to China.
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,动词上要加(e)S)
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 1989,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
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、 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,these days,etc.
3.基本结构:am/is/are+doing
4.否定形式:am/is/are+not+doing.
5.一般疑问句:把be动词放于句首.
6.例句:How are you feeling today?
He is doing well in his lessons.
四、 过去进行时:
1.概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作.
2.时间状语:at this time yesterday,at that time或以when引导的谓语动词是一般过去时的时间状语等.
3.基本结构:was/were+doing
4.否定形式:was/were + not + doing.
5.一般疑问句:把was或were放于句首.
6.例句:At that time she was working in a PLA unit.
When he came in,I was reading a newspaper.
五、 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.
It has been raining these days.
I am now reading a book.
I wrote a letter just now.
I will go to China.
I have been to China.
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,动词上要加(e)S)
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 1989,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
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、 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,these days,etc.
3.基本结构:am/is/are+doing
4.否定形式:am/is/are+not+doing.
5.一般疑问句:把be动词放于句首.
6.例句:How are you feeling today?
He is doing well in his lessons.
四、 过去进行时:
1.概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作.
2.时间状语:at this time yesterday,at that time或以when引导的谓语动词是一般过去时的时间状语等.
3.基本结构:was/were+doing
4.否定形式:was/were + not + doing.
5.一般疑问句:把was或were放于句首.
6.例句:At that time she was working in a PLA unit.
When he came in,I was reading a newspaper.
五、 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.
It has been raining these days.
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