英语的8种句式结构 英语的八大句型是哪些？？
1）主语从句
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【英语的8种句式结构 英语的八大句型是哪些？？】2）宾（表）语从句
We cannot understand why he was so cruel to his roommates.
3）定语从句（限定性和非限定性）
It is estimated that tens of billions of pounds spent on cigarettes every year in our country, which is a huge waste.
4）状语从句（时间英语的8种句式结构，原因，地点，条件，让步，转折等）
Whatever the reason, there are still some problems with student use of computers.
5）分词短语做定语或状语
Prof. Kang came to our university, giving us a lecture on how to acquire English better.
6）倒装句
Only through these measures can we hope to solve the problem.
7）被动句
Some measures should be taken to deal with the problem.
8）设问句
Do you still remember the boy who cried wolf for several times so no one would trust him?
1.一般现在时: 主语+do/does
e.g We clean the room every day.
2.一般过去时: 主语+did
e.g We cleaned the room just now.
3.现在进行时: 主语+am/is/are doing
e.g We are cleaning the room now.
4.过去进行时: was/were doing
e.g We were cheaning the room at 5:00 yesterday afternoon.
5.现在完成时: have/has done
e.g We have cleaned the room already.
6.过去完成时: had done
e.g We had cleaned the room before he arrived.
7.一般将来时: will do/
e.g We will clean the room tomorrow.
8.过去将来时: was/were to /would do
e.g He said he would clean the room next.
基本句型一： S V （主＋谓）
基本句型二： S V P （主＋谓＋表）
基本句型三： S V O （主＋谓＋宾）
基本句型四： S V o O （主＋谓＋间宾＋直宾）
基本句型五; S V O C （主＋谓＋宾＋宾补）
八大时态
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(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 +d one.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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