介词是什么.初中常见介词有哪些.who.they这些算介词么

6个回答

  • 不算.

    介词的主要用法:

    介词是一种虚词,不能独立使用.介词之后一般有名词或代词(宾格)或相当于名词的其他词类、短语或从句作它的宾语,即构成介词短语.有些介词是由两个以上的词构成的短语介词,如:out of(从…中出来), because of(因为), away from(距离…), on top of(在…顶上), ever since(自从…), next to(在…隔壁), according to(根据…), in front of(在…前方)等.

    2、介词的分类表: (见下表)

    地点(位置、范围)介词:above在…前, about在…附近, across在…对面, after在…后面, against倚着..., along在…近旁, among在…中间, around在…周围, round在….周围, at在…处, before在...前, behind在...后, below低于..., beside在...旁边, between在...之间, by在...旁, down在...下面, from来自..., in在...里面, inside在...里面, near靠近..., of在...之中, on在...上面, out of在...之外, outside在.外面, over在.上方, under在...下方, up在...上面, on top of在...顶部, in front of在...前, close to靠近..., in the middle of在...的中间, at the end of在...的末端,等等.

    方向(目标趋向)介词:across横越..., against对抗..., along沿着..., around绕着..., round环绕..., at朝着..., behind向…后面, etween…and…从…到...,by路过/通过..., down向…下, for向..., from从/离..., in进入..., into进入..., inside到...里面, near接近..., off脱离/除..., on向...上, out of向...外, outside向.外, over跨过..., past经过/超过..., through穿过..., to向/朝..., towards朝着..., on to到...上面, onto到...上面, up向...上, away from远离...

    时间介词:about大约..., after在…以后, at在… (时刻), before在…以前, by到…为止, during在…期间, for有…(之久), from从…(时)起, in在(上/下午);在(多久)以后, on在(某日), past过了…(时), since自从…(至今), through 贯穿…(期间), till直到…时, until直到…时, to到(下一时刻), ever since从那时起至今,at the beginning of在...开始时 ,at the end of在...末 , in the middle of在...当中 ,at the time of在...时

    方式介词:as作为/当作..., by用/由/乘坐/被..., in用…(语言), like与…一样, on骑(车)/徒(步),通过(收音机/电视机), over通过(收音机), through通过..., with用(材料),用(手/脚/耳/眼), without没有…

    涉及介词: about关于..., except除了…, besides除了…还... for对于/就…而言, in在…(方面), of…的,有关..., on关于/有关..., to对…而言, towards针对..., with就…而言

    其它介词:

    【目的介词】 for为了..., from防止…, to为了…

    【原因介词】 for因为..., with由于…, because of因为...

    【比较介词】 as与…一样,like象…一样,than比...,to与…相比, unlike与…不同

    【伴随/状态介词】 against和…一起(比赛),at在(上班/休息/上学/家,etc.),in穿着…(衣服/颜色),into变成...,on在(值日), with与…一起,有/带着/长着..., without没有/无/不与…一起

    3、介词短语的句法作用:

    介词短语相当于一个形容词或副词,可用作状语、定语和表语.如:The man came .(状)(那个人走下楼来)/The woman is from the countryside.(定)(头上戴花的妇女来自乡下)/The teacher is now with the pupils.(表)(老师现在和学生在一起)

    4、介词短语在句子中的位置:

    介词短语做状语时,如果表示时间/地点,可以放在句首或句尾,如果表示方向/方式/伴随/涉及/原因/目的/比较,一般放在句尾; 介词短语作表语时放在连系动词之后;介词短语作定语时,只能放在被修饰的名词之后.如:He wanted to find a good job in Shanghai the next year.(状语)(他想来年在上海找份好工作)/ They searched the room for the thief.(他们在房间里搜索小偷) / The letters are for you.(表语)(信是给你的)/ Have you seen a cat with a black head and four white legs?(定语)(你看见一只黑头白腿的猫了吗?)

    5、重要注释:

    ⑴ this / that / these / those / last / next / a / every / each等词构成的时间短语,前面不用任何介词.如:Every year travellers from abroad come to visit Pingyao.(每年都有国外的游客来游览平窑镇)/ He had a bad cold that week.(那个星期他患重感冒)

    ⑵ for有时用来引出动词不定式的逻辑主语,常翻译成“对于…而言”.如:It’s too hard for me to finish the work in only one hour.(让我在区区一个小时内完成这项工作太难了)/ The house is big enough for 10 men to live in.(房子够大的可以容10个人住)

    ⑶ of有时用来表示后面的人物正好是前面的表语的逻辑主语.如:It’s very nice/kind of you to do so.(你这么做真是太好了)

    ⑷ 介词有时会与它的宾语分离,而且宾语前置.

    ①x09当宾语是疑问词时.Who are you talking about?(你们在谈论谁?)

    ②x09宾语在从句中当连接词时.He has a younger brother who he must take good care of.(他有 一个需要他照顾的小弟.) / Do you know who our teacher is talking with over there?(你知道我们的老师在那边和什么人谈话吗?)

    ③x09动词不定式作定语且该动词为不及物动词,后面有介词.I finally found a chair to sit on.(我 最终找到了一张椅子坐.)

    (5) 记住一些固定词组:arrive at/in(到达…),on foot(步行),not…at all(根本不),to the north of(在…以北),in the east of(在…的东部),in the night(在夜间),at night(在晚上),be afraid of(害怕…),be full of(充满/ 装满….),be filled with(充满/ 装满….),be good/bad for(对…有益/有害),be made of(由…做成),be made from(由…制造),play with(玩耍……),look out of(朝…外面看),at the end of(在…末梢/结束时),by the end of(不迟于…/到…末为止),with the help of或with one’s help(在…的帮助下),look after(照料…),look for(寻找…),on a bike(=by bike)骑车, help sb. with(帮某人做…),get on (well) with(与某人相处[融洽]),等等.

    6、某些介词的用法辨析:

    ⑴ 时间或地点介词in、on、at的用法区别:表示时间时, in表示在一段时间里(在将来时句子中则表示在一段时间之后), on表示在具体的某一天或者某天的上下午等, at表示在某个时刻或者瞬间; 表示地点时, in表示在某个范围之内, on表示在某个平面上或与一个面相接触,at则表示在某个具体的场所或地点.如:He was born on the morning of May 10th.(他出生于五月十日的早晨)/ I usually get up at 7:00 in the morning.(我通常在早上的七点钟起床) / His glasses are right on his nose.(他的眼镜就架在他的鼻子上)/ He is at the cinema at the moment.(此刻他正在电影院)

    ⑵ after与in表示时间的用法区别:“after+(具体时刻/从句)”表示“在…时刻之后”常用于一般时态;“in+(一段时间)”表示“在(多久)之后”,常用于将来时态.如:He said that he would be here after 6:00.(他说他六点钟之后会来这儿)/ My father is coming back from England in about a month.(我父亲大约一个月以后从英国回来)

    ⑶ since与for表示时间的用法区别:“since+(具体时刻/that-从句)”表示“自从…起一直到现在”,“for +(一段斶间)”表示“总共有…之久”,都常用于完成时态;如:Uncle Li has worked in this factory since 1970.(李叔叔自从1970年起就在这家工厂工作了)/ Uncle Li has worked in this factory for over 30 years. (李叔叔在这家工厂已经工作了30多年)

    ⑷ by、in与with表示方式的用法区别:都可以表示“工具、手段”,但是by主要表示“乘坐”某个交通工具或“以……方式”,在被动句中可以表示动作的执行者;in表示“使用”某种语言/文字,with表示“使用”某个具体的工具、手段.如:We see with our eyes and walk with our feet.(我们用眼睛看东西,用双脚走路)/ Please write that article(文章) in English.(请你用英语写那篇文章)/ Let’s go to the zoo by taxi.(我们打的去动物园吧.)/ It was written by Lao She.(那是老舍写的)

    ⑸ about与on的用法区别:都可以表示“有关…”,但是about的意义比较广,而on主要表示“有关…(专题/课程)”.如:Tom is going to give a talk on the history of America.(汤姆要作一个美国历史的报告)/ They are very excited talking about the coming field trip.(他们兴致勃勃地谈论着即将来到的野外旅游)

    ⑹ through与across、over的用法区别: through指“穿过…(门洞/人群/树林)”; across和over可以指“跨越…(街道/河流)”,可互换,但是表示“翻过…”时只能用over. 如:Just then a rat (鼠)ran across the road.(就在那时一只老鼠跑过路面)/ There is a bridge across/over the river.(河上有座桥)/ They climbed over the mountain and arrived there ahead of time.(他们翻过大山提前到达了那里)/ The visitors went through a big gate into another park.(参观者们穿过一个大门来到另一个公园)

    (7)as与like的区别:两个词都表示“像……”,但是as译为“作为……”,表示的是职业、职务、作用等事实,而like译为“像……一样”,表示外表,不是事实.如:Let me speak to you as a father.(我以父亲的身份和你讲话.)(说话者是听者的父亲) / Let me speak to you like a father.(让我像一位父亲一样和你讲话)(说话者不是听者的父亲)

    (8)at the end of、by the end of、to the end、in the end的用法区别:at the end of…既可以表示时间也可以表示地点,译为“在…末;在…尽头”,常与过去时连用;by the end of…只能表示时间,译为“在…前;到…为止”,常用于过去完成时; in the end与at last基本等义,表示“终于、最后”,通常用于过去时;to the end译为“到…的终点为止”,前面往往有表示运动或连续性的动词.如:By the end of last term we had learned 16 units of Book III.(到上学期期末我们已经学习了第三册16个单元)/ At the end of the road you can find a big white house with brown windows.(在路的尽头你能找到一幢有棕色窗户的白房子)/ They left for Beijing at the end of last week.(上周末他们动身去了北京)/ In the end he succeeded in the final exams.(他最终在期末考试中考及格了)/ We should go on with the work to the end.(我们应该把工作干到底)/ Follow this road to the end and you will see a post office.(沿这条路走到底就能看见一家邮电局)

    (9)for a moment、for the moment、in a moment、at the moment的区别:for a moment“一会儿、片刻”(=for a while),常与持续性动词连用;for the moment“暂时、目前”,常用于现在时;in a moment“一会儿、立即、马上”(=soon; in a few minutes),一般用于将来时;at the moment“此刻,眼下”(=now),用于现在进行时.如:Please wait for a moment.(请稍等)/ Let’s leave things as they are for the moment.(暂时就维持现状吧!) / I’ll come back in a moment.(我过会儿回来)/ I am very busy at the moment.(眼下我很忙)

    (10)but的问题:用介词but引出另一个动词时,要注意:如果前面有do,后面就用原形动词,前面没有do时,后面的动词要加to.如:I could do nothing but wait.(我什么也做不了只能等) / They had no choice(选择) but to fight.(他们没有选择只有战斗)

    (11)in front of 与in the front of: in front of“在…的前面”, 与in the front of“在…的前部”.如:A car was parking in front of the hall.(大厅跟前停着一辆汽车)/ In the front of the hall stood a big desk.(大厅前部立着一个大讲台)

    (12)except与besides的区别:except“除了”,表示排除掉某人物,即不包含;而besides“除了”则表示包含,即“不仅……又……”.如:Everyone went to the Palace Museum except Tom.(除了Tom,大家都去了故宫博物院)(Tom没有去故宫)/ Besides Chinese he also studied many other subjects.(除了汉语之外,他还学其他许多功课)(“汉语”也是他学的功课之一)