（1）at,on at 表示某一时刻,on 表示某一天或日期,如:at 7:14,on Saturday morning on the night of May2 一天内各段时间表达,选用正确的介词,请比较：in the morning on a winter / snow / cold / morning at night on the night ofMarch 7 th in the evening on Fridayevening 4）for 表示延续一段时间.I’ll study in the U.S for two years I’ve waited for Bingo for half an hour.5) in+时间段,表示从现在起往后推算一段时间 after +时间段,表示过去某时间往后推算一段时间,如：He’ll come back in two days.但点钟用after( after three o’clock) He left on July 2 and returned after three days.二、表示事物之间位置的介词 （1）at,in 当事物被视作一点,不强调其空间常用介词at,而表示空间内部用介词in,如：We’ll meet at the supermarket 我们在超市见面 I had to stay in the supermarket as it was raining hard 因为下大雨,我只好呆在超市里 *动词arrive 后接at ,表示较小的地方,如:车站、村庄等.后接in 表示较大地方,如:城市,地区等 （2）in,to in 表示事物在区域范围内的位置,to 表示事物对区域范围之外另一事物的位置,如：Shanghai is in the east of China.上海在中国东部 Japan lies to the east of China.日本位于中国东面.in front of 表示在前面,一般不在范围内,in thefront of 表示在前面.在同一范围内.（3）after,behind after 指顺序先后 ,behind 指位置在某事物之后,相对于in front of 而言,如：He entered the classroom after the teacher He hid himself behind the door 他在门后.（4）on ,in on 表示“在某事物表面上”.如将事物看作空间,表示在其内部,用介词in.There is a modern paintingon the wall .There is a modern painting on the wall .（3）for ,to for表示“为了.” To 表示动作对象,“对,向.”如:He would do anything for hismotherland.Did you mentionthis to my father?你对我父亲提起过这件事吗?for 表示“就某情况而说 ”,to 表示一“对某对象而言”如：It’s quite warm today for February.就二月的天气,今天够暖和的.What he told you just now was not new to me 他刚才对你所说的话对我并不新鲜 for 表示“目的,用途”.与go,come 动词连用,6）介词和名词动词等有不少固定搭配和习惯用法：toone’s surprise / joy,in charge of ,instead of,in bed (hospital),introuble,in a hurry,in surprise,with a smile,with one voice,according to,at once,on time,in time,in all,at home,(school,work),at last,at least,in the end,by the way,for example,at thesame time,at the same speed,on one’s way (to),in the sun,on the football team,in line,with the help of,in red / green… put on,look for,look after,run after,send for,enter for,pay for,show…around,listen to,arrive in / at,get to,agree with,succeed in,think of (about),wait for,….
