介词
http://baike.baidu.com/view/84281.html?wtp=tt连词
http://baike.baidu.com/view/26757.htm句子成分(在下面一点)
http://baike.baidu.com/view/314222.htm 回家,打开老师发给你的英语参考书,认真看一看,之后你就明白了。介词,连词,句子的成分不是重点,不清楚的话,可以向语文老师请教。各种从句,非谓语动词,作文,单词才是重点。在这上边要多用功。还有学好英语,语文是关键,用不着把所有的语法知识都弄明白,都弄明白了也不一定打满分,关键是要学会悟。以上就是本人的一些见解,如有不足,望批评指正。
英语介词简介
表示时间的介词
表示场所和方向的介词
其他介词
表示时间的介词
表示"时间"的介词如下:
表示年,月,日时刻等用at,in,on
表示时间的前后用before,after
表示期限等用by,untill,till
表示期间等用for,during,through
表示时间的起点等用from,since
表示时间的经过等用in,within
表示年,月,日时刻等用at,in,on
at 用于表示时刻,时间的某一点
at noon
at night
at present
at 8 o'clock
We usually have lunch at 12.
on 用于某天,某天的上,下午(指具体某一天时,一律用on) 返回
on Monday
on Tuesday morning
on June 12th
on a cold night
on the night of May 1st
We didn't listen to the lecture on Friday afternoon.
in 用于表示周,月,季节,年,泛指的上午,下午,晚上
in the week
in May
in spring
in 1992
in the morning
in the afternoon 返回
in the night
People go skating in winter.
表示时间的前后用before,after
before 在...之前
Wash your hands before dinner.
He will call me before he leaves here.
after 在...之后
Let's sing some songs after school.
Please close the door after you leave the room.
表示期限等用by,untill,till
by 在...之前;截至...
How many English books had you read by the end of last year.
untill(till) 直到...为止 (untill 与 till 可通用)
We didn't begin to watch TV untill (till) nine o'clock.
I'll wait for him untill he comes here.
表示期间等用for,during,through
for 达...之久 返回
He has lived here for 20 years.
We will stay in the city for two days.
during 在...期间
They are going to have a good rest during the summer holidays.
through 一直...(从开始到结束)
They played the cards through the night.
表示时间的起点等用from,since
from 从...起(时间)
The meeting will be held from eight to ten.
The meeting will be held at eight
since 自从...以来(表示从以前某时一直到现在仍在继续)
I have been sick since yesterday.
The doctor has saved a lot of lives since he became a doctor.
表示时间的经过等用in,within 返回
in 在...后(未来时间)
in an hour
in a week or so
He will be back in five hours.
They said they would arrive here in a week.
within 不超过...的范围
within 3 hours
I must finish painting the cat within five minutes.
They worked hard. They finished the work within 2 days at last.
表示场所,方向的介词
表示场所的介词: at,in,on,under,by,near,between.
表示方向的介词: into,out of,along,acros,through,to,from.
at,in
at 在某地点(表示比较狭窄的场所) 返回
at school
at home
at No.2 Baker Street
at a factory
I'll meet him at the Beijing railway station.
in 在某地(表示比较宽敞的场所)
in Beijing
in China
in the world
in the street
She was born in China.
on,under,over,above,below
on a.在...上面,有接触面
on the desk
There are two maps on the wall.
b.在...靠近...的地方
on the right
on the river
above 在...上方
Our plane flew above the clouds.
over 在...正上方,是under的反义词 返回
There is light over Li Ming.
A few birds were flying over the sea.
under 在...下面;在...之内
under the table
under the jacket
The dog is under the table.
below 在...下方(不一定是正下方)
There are a lot of fishes below the surface of the water.
near,by
near 近的,不远的
near = not far
Is there a bus stop near here
by 在...旁边,距离比near要近
by the window
by me
The boy is standing by the window.
between,among,around 返回
between 在两者之间
My teacher is sitting between Tom and Mike.
What's the difference between A and B
among 在三者或更多的之中
There is a beautiful house among the trees.
He is very popular among the students.
around 环绕,在...周围,在...四周
We sat around the table.
They walked around the street.
in front of,behind
in front of 在...的前面;在...的前部
The is a tree in front of the house.
There is a big desk for the teacher in front of the classroom.
behind 在...后面 是 in front of的反义词 返回
There is a tree behind the house.
in,into,out of
in 在...之内,用于表示静止的位置
The students are in the classroom.
into 进入
The students run into the classroom.
He jumped into the water.
out of 和into一样,也表示有一定的运动方向
The students rushed out of the room.
along,across,through
along 沿着
I was walking along the river when it began to rain.
across 横过 返回
I often swim across the river
through 贯穿,通过
The river was through the city.
to,for,from
to 到达...地点(目的地)或方向
He came to Japan in 1980.
Tom has gone to school.
for 表示目的地,"向..."
I'll leave for America next week.
leave for 动身去...
start for 出发去...
from 从...地点起...
It's about ten minutes' walk from here to the cinema.
How far is it from our school to the hospital
其他介词
表示手段和材料的介词用with,in,by
with a. 和...在一起
Will you please go with me
b. 具有,带有
He was a handsome boy with large bright eyes.
c. 用某工具或方法 返回
Li Li cut her hand with a knife.
I see with my eyes.
He wrote the letter with a new pen.
in 表示用什么材料(例如用墨水,铅笔)等,或用什么语言,或者表示衣着,声调特点时,不用with,而用in
She wrote a letter in black ink.
Don't write it in pencil but in ink.
by 通过...方法,手段
He goes to school by bicycle.
of, from
of (属于)...的;表示...的数量或者种类
This is a map of China.
Will you please give me a cup of tea
from 来自(某地,某人);以...起始(时间或地点) 返回
I'm from Nanjing.
I have got a letter from my friend.
without,like,as
without 没有,是with的反义词
Men can't live without air and water.
I can't read the book without using a dictionary.
Please give me a cup of coffee without milk.
Please give me a cup of coffer with milk.
like 象...一样
Nancy is just like her mother.
as 作为
He is famous as a scientist here.
against,about 返回
against 反对;靠着
He is against the plan.
The teacher is standing against the blackboard.
about a. 关于;各处;身旁
Tell me something about your life.
He looked about himself.
I have no money about(= with) me.
b. 询问某人某物的情况或提出建议
What about your sister
How about going to the park
所有的时态结构
英语的时态(tense)是一种动词形式,不同的时态用以表示不同的时间与方式。
是表示行为、动作和状态在各种时间条件下的动词形式。因此,当我们说时态结构的时候,指的是相应时态下的动词形式。
英语时态分为16种:一般现在、一般过去、一般将来、过去将来时,以及这四者的进行时、完成时和完成进行时
下面就英语中常见的八种基本时态进行阐述,其它的时态都是在这八种时态的基础上结合而成的。
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 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 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、 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.
The countryside has changed a lot in the past few years.
六、 过去完成时:
1.概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。
2.时间状语:before, by the end of last year(term, month…),etc.
3.基本结构:had + done.
4.否定形式:had + not + done.
5.一般疑问句:had放于句首。
6.例句:As soon as we got to the station, the train had left.
By the end of last month. We had reviewed four books
七、 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.
八、 过去将来时:
1.概念:立足于过去某一时刻,从过去看将来,常用于宾语从句中。
2.时间状语:the next day(morning, year…),the following month(week…),etc.
3.基本结构:was/were/going to + do;would/should + do.
4.否定形式:was/were/not + going to + do;would/should + not + do.
5.一般疑问句:was或were放于句首;would/should 提到句首。
6.例句:He said he would go to Beijing the next day.
I asked who was going there .
九.将来完成时:
1.概念:在将来某一时刻之前开始的动作或状态
2.时间状语:by the time of;by the end of+时间短语(将来);by the time+从句(将来)
3.基本结构:be going to/will/shall + have done
十.现在完成进行时:
1.概念:在过去某一时刻之前开始的动作或状态一直持续到说话为止
2.基本结构:have/has +been+doing
几种常见时态的相互转换
英语中的几种时态在一定情况下可以互相转换,以下是几种常见的转换形式:
十一、 一般过去时与现在完成时的转换
在现在完成时中,延续性动词能与表示一段时间的状语连用,瞬间动词却不能。但是,可用别的表达方式:①瞬间动词用于“一段时间 + ago”的一般过去时的句型中;②瞬间动词可改成与之相对应的延续性动词及短语,与一段时间连用;③瞬间动词用于“It is + 一段时间 + since + 一般过去时”的句型中,表示“自从……以来有……时间”的意思,主句一般用it is来代替It has been;④瞬间动词用于“Some time has passed since + 一般过去时”的句型中。请看:
A. He joined the League two years ago.
B. He has been in the League for two years.
C. It is two years since he joined the League.
D. Two years has passed since he joined the League.
十二、 一般现在时与现在进行时的转换
在一般现在时中,at加上名词表示“处于某种状态”,如at work(在工作), at school(上学、上课)等。此短语可与进行时态转换。请看:
Peter is at work, but Mike is at play.
Peter is working, but Mike is playing.
十三、 现在进行时与一般将来时的转换
在现在进行时态中go, come, leave, start, arrive等动词常与表示将来的时间状语连用表示将要发生的动作。如:I am coming, Mum! 意为“我就来,妈妈!”请看:
The train is leaving soon.
The train will leave soon.
十六种时态
一般现在时,一般过去时,一般将来时,一般过去将来时;
现在进行时,过去进行时,将来进行时,过去将来进行时;
现在完成时,过去完成时,将来完成时,过去将来完成时;
现在完成进行时,过去完成进行时,将来完成进行时,过去将来完成进行时.