动词及物与不及物通常有以下几种情况：a．主要用作及物动词.及物动词后面必须跟宾语.可以用于："主＋谓＋宾"；"主＋谓＋双宾"；"主＋谓＋宾＋宾补"结构.如：He reached Paris the day before yesterday.Please hand me the book over there.They asked me to go fishing with them.类似的还有：buy,catch,invent,found,like,observe,offer,prevent,promise,raise,find,forget,receive,regard,see,say,seat,supply,select,suppose,show,make,take,tell.b．主要用作不及物的动词.不及物动词后面不跟宾语.只能用与："主＋谓"结构.This is the room where I once lived.类似的还有：agree,go,work,listen,look,come,die,belong,fall,exist,rise,arrive,sit,sail,hurry,fail,succeed.c．既可以用作及物又可以用作不及物的动词,其意义不变.如begin 都是作"开始"讲.everybody ,our game begins.let us begin our game.类似的还有：start,answer,sing,close,consider,insist,read,learn,prepare,pay,hurt,improve.d．既可以用作及物又可以用作不及物的动词,其意义完全不同.这类动词作不及物动词是一个意义；而作及物动词时却是另一个意义.如lift作不及物动词时是指烟雾的"消散".we saw the mountain when the clouds lifted.作及物动词时是"升高；举起".He lifted his glass and drank.类似的还有：beat vi.跳动 vt.敲、打; grow vi.生长 vt.种植 play vi.玩耍 vt.打（牌、球）,演奏 smell vi.发出（气味） vt.嗅 ring vi.（电话、铃）响vt.打电话 speak vi.讲话 vt.说（语言） hang vi.悬挂 vt.绞死 operate vi.动手术 vt.操作 及物动词不需要介词 在英语错误中,"及物动词＋介词＋宾语"（transitive verb+preposition+object）,是常见的一种.所谓及物动词,就是谓语动词（predicative verb）,不必通过介词引荐宾语.相反的,不及物动词（intransitive verb）是不带宾语的.有许多动词,虽然性质是及物的,但不一定要有宾语,如下列的①a和②a便是这种情形：①a.We study every day.b.Do you study English every day.②a.Please write clearly next time.b.Can you write your composition now?如果本质上就是不及物动词,就不会有宾语；若要宾语,就要借介词之助,一起连用才行,如③b和④b;③a和④a是错的； *③a.The children are listening the music.b.The children are listening to the music.*④a.She is laughing the crippled man.b.She is laughing at the crippled man.反之,及物动词不必靠介词,就可以带宾语,如上述的①b和②b ,又如⑤和⑥：⑤ John is giving a book to me.⑥ Who will answer this question?如果无意中把介词加上,就错了,如：*⑦ Who will answer to this question?下列这句从房地产广告中看到的句子,也犯了同样的错："We have many buyers awaiting for available units here." "Awaiting"是个及物动词,后面的介词"for"是多余的,要去掉；不然把"awaiting"改为"waiting for"也行.许多人习惯上喜欢把介词加到及物动词后面,然后才带出宾语.最常见的是"emphasize/stress on/upon"和"discuss about",如：⑧ Singaporeans seem to have emphasized on material gains.⑨ In our education system,we stress upon examination results.⑩ World leaders spent a lot of time discussing about worsening economic problems.显然的,这三句里的介词"on/upon"和"about"是多余的,不必要的.下面是些类似的错误：● The young must obey to their elders.● Do not approach to that odd-looking man.● The audience attacked on the rude speaker.● Nothing can escape from his parents' eyes.● Do you hope to serve for your nation?● When did Susan marry with Paul?介词"to,on,from,for,with"都要去掉才对.为什么会有这些错误呢?主因是分不清楚及物动词和不及物动词的性质.其次,就是对同一个动词及其名词的句型有些混淆.解决之道有二.第一,要把"及物动词＋宾语"和"不及物动词＋介词＋宾语"划分清楚,如：I did not answer him./ I did not reply to him.He reached Londan yesterday./ He arrived in London yesterday.第二,把及物动词转化为名词,然后加上适当的介词和宾语,如：Don't approach such a person.Is oral practice a good approach to language teaching?