[误] Three days after he died.

　　[正] After three days he died.

　　[正] Three days later he died.

　　[析] after 与 later都可以用来表达一段时间之后，但它们所处的位置不同，after 在时间词前，而later在时间词后。

　　[误] She hid herself after the tree.

　　[正] She hid herself behind the tree.

　　[析] after多用来表达某动作之后，所以有的语法书中称它为动态介词，如：I run after him. After finishing my homework， I went to see a film. 而behind则多用于静态事物之后。

　　[误] There is a beautiful bird on the tree.

　　[正] There is a beautiful bird in the tree.

　　[析] 树上长出的果实，树叶要用on， 而其他外来的人、物体均要用in the tree.

　　[误] Shanghai is on the east of China.

　　[正] Shanghai is in the east of China.

　　[析] 在表达地理位置时有3个介词：in， on， to. in表示在某范围之内; on表示与某地区接壤;to则表示不相接。如：Japan is to the east of China.

　　[误] I arrived at New York on July 2nd.

　　[正] I arrived in New York on July 2nd.

　　[析] at用来表达较小的地方，而in用来表达较大的地方。at常用于at the school gate， at home， at a bus stop， at the station， at the cinema， at a small village.

　　[误] He lived in No. 3 Beijing Road.

　　[正] He lived at No. 3 Beijing Road.

　　[析] 在门牌号码前要用at， 并要注意它的惯用法：at the end of the street， at the foot of the mountain， at the top of the page.

　　[误] There is a colour TV set at the corner of the hall.

　　[正] There is a colour TV set in the corner of the hall.

　　[析] 在屋内的角落应用in，而墙的外角用at，如：There is a tree at the corner of the street.

　　[误] This weekend I’ll stay in Uncle Wang’s.

　　[正] This weekend I’ll stay at Uncle Wang’s.

　　[析] 要注意英文的特殊表达法，如：at a tailor’s shop (裁缝店)=at a tailor’s， at the doctor’s (去看病) at the bookseller’s (在书店) at uncle Wang’s (在王叔叔家)

　　[误] Do you know there is some good news on today’s newspaper?

　　[正] Do you know there is some good news in today’s newspaper?

　　[析] 在报纸上的新闻要用in， 而在具体某一版上，或某一页上则要用on.

　　[误] The school will begin on September 1st.

　　[正] School will begin on September 1st.

　　[析]这里的school应看作不可数名词泛指学校的课程，即开学之意。要注意，有些活动场所当表达正在从事该种活动时不要加冠词，如：at table (吃饭)， When I came to Tom’s home， they were at table. 还有： at desk (学习)，at work (工作) at school (上学)， in hospital (住医院) at church 作礼拜如加上定冠词则另有他意，如：at the school 即在学校工作或办事，in the hospital 即在医院工作或去看望病人。

　　[误] In my way to the station， I bought a newspaper to kill time.

　　[正] On my way to the station， I bought a newspaper to kill time.

　　[析]译文为：在去车站的路上我买了份报纸，为的是消磨时光“在……的路上”应用on one‘s way…。而 in the way 有挡道之意，如：Please move the chair it is in the way.

　　[误] Look， the door is open， Maybe someone broke into.

　　[正] Look， the door is open， Maybe someone broke in.

　　[正] Look， the door is open， Maybe someone broke into the office.

　　[析] in是表达一个静止状态，在与break连用时其后不加介词宾语，而into则是动态介词，与break连用时要加介词宾语。