介词和介词短语

1、 介词介词英语中称为“preposition”是由“前缀pre-（在前部）+position（位置）”构成的，所以又叫前置词。一般放在名词、代词或动名词的前面。介词是虚词，主要用来表示人、物、事件等与其他人、物、事件之间的关系,如空间位置、时间先后、因果关系、方式方法等。介词与其宾语构成介词短语。可作介词宾语的主要有名词、代词、动名词（或动名词短语）、名词性从句等。分类特点例词简单介词即一个介词about, across, after, against, among, around, at, below, beyond, during, in, on等等。合成介词由两个介词构成合成词into, onto, throughout, upon, within短语介词由短语构成according to, because of, instead of, up to, due to, owing to, thanks to等等。双重介词由两个介词搭配而成from among, from behind, from under, till after, in between等等。分词介词由现在分词转

2、化而来considering(就而论), including，regarding，concerning等。兼类介词由形容词直接转化而来like, unlike, near, next, opposite等等。介词不能独立在句中做成份，介词后必须与名词、代词、或动名词构成介词短语在句中充当一个成分，表示人、物、事件等与其它人、物、事件等之间的关系。介词短语的功能例 句作定语They didnt find the solution to the problem.作状语We have breakfast at seven.（表时间）They were late for the meeting because of the heavy rain.（表原因）What do you mean by doing such a thing?（表方法）Nothing in the world could live without air or water.（表条件）作表语When I paid a visit to you yesterday, you were not at home.作宾语补足语I

3、found the old building in a bad condition.介词是英语中最活跃的词类之一，使用频率相当高，其用法跟冠词一样复杂。但根据近年来高考命题的情况来看，考生需要掌握以下内容。1.表示相同或相似概念的介词（短语）的区别表示的概念介词（短语）区 别例 子时间inonatat在一个时间点上；in在一段的时间之内；on在具体日子。at 8 oclock, at noonin the 1990s, in Januaryon Monday, on a warm morningsincefromsince 指从过去到现在的一段时间，和完成时连用；from指从时间的某一点开始。We have not seen each other since 1995.I hope to do morning exercises from today.in,afterin指在一段时间之后，也可以指一段时间之内=within；after表示某一具体时间点之后或用在过去时的一段时间中。Well be back in three days.After seven the rain began

4、 to fall.What shall we do after graduation?in the endat the end ofby the end ofin the end作“最后”、“终于”解，单独作句子成分，后不接介词of；at the end of 表示“在末梢”，“到尽头”，既可指时间，也可以指地上或物体。不可单独使用；by the end of 作“在结束时”，“到末为止”解，只能指时间。不可单独使用。In the end they reached a place of safety.At the end of the road stands a beautiful garden.They decided to have an English evening at the end of this week.By the end of last month he had finished the novel.位置betweenamong一般说来，between表示两者之间，among用于三者或三者以上的中间。You are to sit between your fath

5、er and me.He is always happy among his classmates.注意：但有时说的虽然是三个以上的人或东西，强调的是两两相互间接关系时、在谈到一些事物或一组事物，而把它们视为分居两边时以及在谈事物间的差别时，就用between。Agreements were made between the different countries.The little valley lies between high mountains.They dont know the difference between wheat, rice and coin.inontoin表示在某范围内；on指与什么毗邻；to指在某环境范围之外。Changchun is in the northeast of China.Mongolia is on the north of China.Japan is to the east of China.oninon只表示在某物的表面上，而用in表示占去某物一部分。There is a book on the piece of paper. T

6、here is an interesting article in thenewspaper. He dug a hole in the wall.inintoin通常表示位置（静态）；into表示动向，不表示目的地或位置。We walked in the park.We walked into the park.throughacrossthrough表示从内部通过，与in 有关；across则表示从一端至另一端在表面上的通过，与on有关。Water flows through the pipe.The old man walked across the street.in the corner on the corner at the cornerin the corner 表示在角落里，in指角的内面；on the corner表示“在角上”，on指的不是内面，也不是外面，而含内外兼有之意；at the corner指“在拐角处”，at指的是拐角外附近的外面。The lamp stands in the corner of the room.I met with him at t

7、he street corner.He sat on the corner of the table.除了besidesexceptbutexcept forbesides指“除了还有，再加上”；except指“除了，减去什么”，不能放在句首。but 与except意思近似，表示“除了外”经常用在no, all, nobody, anywhere, everything等和其他疑问词后面。except for表示“如无就，只是”表明理由细节。All went out besides me. All went out except me.I never saw him reading anything but the newspaper.His diary is good except for a few spelling mistakes.表示的概念构成例 子动作（表进行概念、表被动的关系）at+名词at dinner/table在吃饭 at work在工作 at war交战 at cards 在玩牌 at work 在办公 at play 在玩耍 at rest在休息 school在

8、上学 at press正在排印at church在做礼拜beyond+名词beyondbelief难以置信 beyondcontrol不听管教。 beyondcompare无可比拟 beyonddescription难以形容beyondexpression无法表达 beyondsuspicion无可怀疑in+名词或in+名词+of+名词in the army在当兵 in need of需要 in action在运转in progress在进行 in operation在运行中 inuse开始使用 insight看得见 instore贮藏着incourseofconstruction正在兴建当中。 in(good)repair维修良好的incourseofshipment.定的货正在运输途中。 inchargeof负责 inthechargeof由负责 inpossessionof拥有 inthepossessionof被拥有on+名词on business办事/出差 on holiday/vacation/leave在休假on watch值班 on duty值勤/日。on guard在值勤 on strike在罢工on sale出售 on loan借贷on the move 在移动，搬迁，离开 on the march在行军on the air在广播 onfire在燃烧。ontrial在试用 onshow/display/ exhibition在展出under+名词under control在控制之中 under discussion在讨论underdevelopment在发展中 under observation在观察中under test在被测试

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