介词是一种用来表示词与词, 词与句之间的关系的词。在句中不能单独作句子成分。介词后面一般有名词代词或相当于名词的其他词类,短语或从句作它的宾语。介词和它的宾语构成介词词组,在句中作状语,表语,补语或介词宾语。并且在定语从句“介词+whom/which”的结构中,不能用that 代替whom/which。She is a good student from whom we should learn.
1.表示地点位置的介词
1)at ,in, on, to,for
at (1)表示在小地方; (2)表示“在……附近,旁边”
in (1)表示 在大地方; (2)表示“在…范围之内”。
on 表示毗邻,接壤,“在……上面”。
to 表示在……范围外,不强调是否接壤;或“到……”
2)above, over, on 在……上
above 指在……上方,不强调是否垂直,与 below相对;
over指垂直的上方,与under相对,但over与物体有一定的空间,不直接接触。
on表示某物体上面并与之接触。
The bird is flying above my head.
There is a bridge over the river.
He put his watch on the desk.
3)below, under 在……下面
under表示在…正下方
below表示在……下,不一定在正下方
There is a cat under the table.
Please write your name below the line.
4)in front [frant]of, in the front of在……前面
in front of…意思是“在……前面”,指甲物在乙物之前,两者互不包括;其反义词是behind(在……的后面)。
There are some flowers in front of the house.(房子前面有些花卉。)
in the front of 意思是“在…..的前部”,即甲物在乙物的内部.反义词是at the back of…(在……范围内的后部)。
There is a blackboard in the front of our classroom.
我们的教室前边有一块黑板。
Our teacher stands in the front of the classroom.
我们的老师站在教室前.(老师在教室里)
5)beside,behind
beside 表示在……旁边
behind 表示在……后面
[编辑本段]2.表示时间的介词
1)in , on,at 在……时
in表示较长时间,如世纪、朝代、时代、年、季节、月及一般(非特指)的早、中、晚等。
如 in the 20th century, in the 1950s, in 1989, in summer, in January, in the morning, in one’s life , in one’s thirties等。
on表示具体某一天及其早、中、晚。
如on May 1st, on Monday, on New Year’s Day, on a cold night in January, on a fine morning, on Sunday afternoon等。
at表示某一时刻或较短暂的时间,或泛指圣诞节,复活节等。
如at 3:20, at this time of year, at the beginning of, at the end of …, at the age of …, at Christmas, at night, at noon, at this moment等。
注意:在last, next, this, that, some, every 等词之前一律不用介词。如:We meet every day.
2)in, after 在……之后
“in +段时间”表示将来的一段时间以后;
“after+段时间”表示过去的一段时间以后;
“after+将来点时间”表示将来的某一时刻以后。
3)from, since 自从……
from仅说明什么时候开始,不说明某动作或情况持续多久;
since表示某动作或情况持续至说话时刻,通常与完成时连用。
4)after, behind 在……之后
after主要用于表示时间;
behind主要用于表示位置。
时间名词前介词用法口诀
年前周前要用in
具体日子却要禁
遇到几号要用on
上午下午又是in
要说某日上下午
用on换in记清楚
午夜黄昏用at
黎明用它也不错
at用在时分前
说“差”可要用上to
说"过''要用past
[编辑本段]3.表运动方向的介词:
across, through 通过,穿过
across表示横过,即从物体表面通过,与on有关;
through穿过,即从物体内部穿过,与in有关。
[编辑本段]4.表示“在……之间”的介词:
between, among
between指在两个人或两个事物之间;
among指在三个或三个以上的人或事物之间。
[编辑本段]5.表示其他意义的介词
1)on ,about 关于
on 表示这本书,这篇文章或演说是严肃的,或学术性的,可供专门研究这一问题的人阅读;
about表示内容较为普通,不那么正式。
2)by, with, in 表示方法、手段、工具
by 以……方法、手段或泛指某种交通工具;
with 表示用 …工具、手段,一般接具体的工具和手段;
in 表示用…方式,用…语言(语调、笔墨、颜色)等;
3)except, besides 除了
except 除……之外,不包括在内;
besides 除……之外,包括在内。
Except Mr. Wang, we went to see the film.(王先生没去)
Besides Mr. Wang, we also wentting to see the film.(王先生也去了)
副词是一种用来修饰动词,形容词,全句的词,说明时间,地点,程度,方式等概念的词。
[编辑本段]分 类:
1) 时间和频度副词:
now,then,often,always,usually,early,today, lately, next,last,already,generally,frequently, seldom,ever,never,yet,soon,too, immediately, hardly,finally,shortly, before, ago,sometimes, yesterday.
2) 地点副词:
here, there, everywhere, anywhere, in, out, inside, outside, above, below, down, back, forward, home, upstairs, downstairs, across, along, round , around, near, off, past, up, away, on.
3) 方式副词:
carefully, properly, anxiously, suddenly, normally, fast, well, calmly, politely, proudly, softly, warmly
4) 程度副词:
much,little, very,rather,so,too,still, quite, perfectly, enough, extremely, entirely,almost, slightly.
5) 疑问副词:
how, when, where, why.
6) 关系副词:
when, where, why.
7) 连接副词:
therefore,moreover,however,otherwise,then.
[编辑本段]用 法:
副词在句中可作状语,表语,补语。
He works hard. (作状语)
他工作努力。
You speak English quite well. (作状语)
你英语讲的很好。
Is she in ? (作表语)
她在家吗?
Let's be out. (作表语)
让我们出去吧。
Food here is hard to get. (作状语)
这儿很难弄到食物。
Let him out!(作补语)
让他出去!
[编辑本段]位 置:
1) 多数副词都可以放在动词的后面,如果动词带有宾语,副词就放在宾语后面。
I get up early in the morning everyday.
我每天早早起床。
He gave me a gift yesterday.
他昨天给了我一件礼物。
She didn't drink water enough.
她没喝够水。
The train goes fast.
火车跑得快。
We can go to this school freely.
我们可以免费到这家学校学习。
They left a life hardly then.
当时他们的生活很艰难。
He has a new hat on today.
他今天戴了一顶新帽子。
I have seen this film twice with my friends.
这部电影我和朋友看过两次。
2) 副词修饰形容词,副词时,副词在前面,而被修饰的词在后面。
It's rather easy, I can do it.
这很容易,我能做到。
He did it quite well.
他做得相当好。
It's rather difficult to tell who is right.
很难说谁是对的。
It's so important that I must tell my friends.
这件事太重要了,我得告诉我的朋友。
It's much better.
好多了。
3) 频度副词可放在实义动词的前面,情态动词和助动词的后面。
I often help him these days.
这些日子我经常帮助他。
I always remember the day when I first came
to this school.
我常常记得我第一次来学校的那一天。
You mustn't always help me.
你不能老是帮助我。
He seldom comes to see us.
他很少来看我们。
We usually go shopping once a week.
我们通常一周买一次东西。
The new students don't always go to dance.
新学生并不时常去跳舞。
4) 疑问副词,连接副词,关系副词以及修饰整个句子的副词,通常放在句子或从句的前面。
When do you study everyday?
你每天什么时间学习?
Can you tell me how you did it?
你能告诉我你如何做的吗?
First, let me ask you some questions.
先让我来问几个问题。
How much does this bike cost?
这辆车子多少钱?
Either you go or he comes.
不是你去就是他来。
The students were reading when the teacher came into the classroom.
当老师进教室时,学生们正在读书。
5) 时间副词和地点副词在一个句中, 地点副词在前面时间副词在后面。
We went shopping in the supermarket at 9 o'clock yesterday.
昨天九点钟我们到超市买东西了.
What were you doing in the classroom yesterday afternoon?
昨天下午你在教室里干什么?
The accident took place in the Eleven Avenue one hour ago.
一小时前十一号大街发生了一场事故。
6)否定副词在句首,句子要倒装,如:
Never have I felt so excited!
[编辑本段]比较等级:
副词和形容词一样,也有它的比较级和最高级形式. 可以参考形容词的变换形式。但以词尾 -ly 结尾的副词(除 early )须用 more 和 most 。
hard harder hardest
fast faster fastest
early earlier earliest
much more most
warmly more warmly most warmly
单音节副词的比较级是在副词后面加上 -er 构成的,最高级是在副词后面加上 -est 构成的。
near nearer nearest
hard harder hardest
多音节副词的比较级是在副词的前面加上 -more 构成的。 最高级是在副词前面加上 -most 构成的。
warmly more warmly most warmly
successfully more successfully most successfully
有些副词的比较级和最高级形式是不规则的。
well-better - best little - less(er) - least
much- more - most badly - worse - worst
far-farther(further)-farthest(furthest)
副词的比较级和最高级用法同形容词的比较级用法基本一样。 最高级形式句中 the 可以省略。
He works harder than I.
他比我工作努力。
Lucy gets up earlier than Lili.
露西比丽丽起床早。
He runs fastest in our class.
他在我们班跑地最快。
He dives deeper than his teammates.
他比他的队员潜水深。
It's true that he speak English more fluently than any of us.
他英语讲的确实比我们任何人都好。
Our school team play football best in our region.
我们校队在我们地区足球踢得最好的。
[编辑本段]副词比较级和最高级的形式
副词比较级和最高级的变化形式与形容词基本上一样
一般 副词
hard→harder →hardest
fast→faster →fastest
late→later →latest
early→earlier →earliest
特殊 副词
well →better →best
much →more →most
badly →worse →worst
little →less(er) →least 但是,开放类副词即以后缀-ly结尾的副词不能像形容词那样加-er或-est,如
quickly →more quickly →most quickly quietly →more quietly →most quietly
〔注〕: early中的-ly不是后缀,故可以把y变i再加-er和-est
[编辑本段]比较级和最高级的基本用法
一、原级比较的基本用法
1. 原级比较由“as+形容词或副词(或再加名词或短语)+as ”构成“原级相同”比较句,表示两者比较;其否定式,即“程度不及”比较句型为“not so(as) +形容词或副词+as”,而且as…as结构前可用just, almost, nearly, quite等表示程度的词修饰
1) Walking briskly for thirty minutes will burn as many calories as .
〔A〕 to run for fifteen minutes
〔B〕 running for fifteen minutes
〔C〕 you run for fifteen minutes
〔D〕 fifteen�minute walking
2) The gorilla(大猩猩), while 〔A〕 not quite as curious than 〔B〕 the chimpanzee(黑猩猩), shows more persistence 〔C〕 and memory retention(记忆力) in solving 〔D〕 a problem.
3) Alaska is twice 〔A〕 as larger 〔B〕 as 〔C〕 the next largest 〔D〕 state, Texas.
2. “as (so)+名词+as+名词”进行名词比较,这时一般情况下有一个表示原级的比较词,但如果第一名词前出现了形容词修饰该词或出现副词修饰谓语,应当用so而不用as
4) Thomas Jefferson’s achievements as an architect rival his contributions a politician.
〔A〕 such
〔B〕 more
〔C〕 as
〔D〕 than
5) I should say Henry is not much a writer as a reporter. (88年考题)
〔A〕 that
〔B〕 so
〔C〕 this
〔D〕 as
二、比较级
1. 比较级由“形容词(副词)比较级+than+…,”构成表示在两者中间一方比另一方“更加…”。连词than后可接句子,也可接名词、代词、名词短语、介词短语、动词、动词不定式、�ING结构和�ED结构,有时也可省去than。
6) Natural mica(云母) of 〔A〕 a superior 〔B〕 quality is cheapest 〔C〕 to obtain than synthetic 〔D〕 mica.
7) She is older than .
〔A〕 any other girl in the group
〔B〕 any girl in the group
〔C〕 all girls in the group
〔D〕 you and me as well as the group
8) Josephine McCrackin joined 〔A〕 the “Santa Cruz Sentinel” in 1905 and, until her death fifteen years late 〔B〕 , remained 〔C〕 active in journalistic 〔D〕 work.
2. 注意than前后两项相比较的人或事物要一致
9) The purpose of the research had a more important meaning for them than .
〔A〕 ours
〔B〕 with us
〔C〕 for ours it had
〔D〕 it did for us
10) Sound travels air.
〔A〕 faster through water than through 〔B〕 faster than through water and
〔C〕 through water faster and〔D〕 where it is faster through water than through
11) Gerbrand von den Feckhout, one of Rembrand’s pupils, followed 〔A〕 the style of his teacher so implicitly that 〔B〕 his paintings 〔C〕 are sometimes confused with his master 〔D〕 .
三、最高级
1. 最高级用于三者以上比较,形容词的结构形式是“定冠词+形容词最高级+名词+表示范围的短语或从句”(如all, of all, of the tree, in the world, that has ever taken place等)
12) The more 〔A〕 fearsome of all the 〔B〕 animals in 〔C〕 the Western 〔D〕 Hemisphere is the grizzly bear.
13) Of all economic 〔A〕 problems, inflation continues to be 〔B〕 a 〔C〕 most significant in its daily impact on 〔D〕 people and business.
14) , the most familiar to general public is the criminal jurisdiction.
〔A〕 All the activities
〔B〕 The activities
〔C〕 Of all the activities
〔D〕 It is the activities
2. 副词的最高级与形容词最高级的区别在于最高级可以不用定冠词the
副词是一种用来修饰动词,形容词,全句的词,说明时间,地点,程度,方式等概念的词。
分为.地点副词.方式副词.程度副词.疑问副词.连接副词。
副词连用顺序:程度副词+方式副词+地点副词+时间副词。
介词是一种用来表示词与词, 词与句之间的关系的词。在句中不能单独作句子成分。介词后面一般有名词代词或相当于名词的其他词类,短语或从句作它的宾语。介词和它的宾语构成介词词组,在句中作状语,表语,补语或介词宾语。并且在定语从句“介词+whom/which”的结构中,不能用that 代替whom/which。She is a good student from whom we should learn.