1、 年月周前要用in，日子前面卻不行。 遇到幾號要用on，上午下午又是in。 要說某日上下午，用on換in才能行。 午夜黃昏須用at，黎明用它也不錯。 at也用在明分前，說“差”可要用上to。 說“過”只可使用past，多說多練牢牢記。 【知識梳理】一、介詞(prep.)含義： 表示它后面的名詞或代詞與其他句子成分的關系。介詞分類：時間介詞；方位介詞；方式介詞介詞短語：介詞+名詞; 動詞+介詞；be +形容詞+介詞 二、表示方位的介詞： 1.in, to, on（1）in表示在某一地區之內的某方位（屬于該范圍）； fujian is in the southeast of china.（2）to

2、表示在某一地區之外的某方位（不屬于該范圍）； japan is to the east of china（3）on表示與某地的毗鄰關系 korea is on the east of china. 2.over,above和on（1）over 指在.正上方，表垂直在上。 there is a bridge over the river.（2）above 指在上方，屬于斜上方。 raise your arms above your head（3）on指在上面，表兩物體接觸。 there is a plate on the table.3.at,in和on的用法區別（1）at 表示較小的地方。 a

3、t the bus stop, at home（2） in 表示較大的地方。 in china, in the world（3） on 表示在一個平面上。 on the table4.(1) in front of在.之前（范圍外）。 there are some trees in front of the classroom (2) in the front of表示“在.的前部”（范圍內） our teacher usually sits in the front of the classroom. (3)before所表示的位置關系和in front of 通用，表示“在.前”，“在.面

4、前”5.below,under （1）below表示“在下方或位置低于.”，不一定有垂直在下之意；(2) under表示“在.正下方”。 there are many bikes under the tree. the coat reaches below the knees.【例1】the boat is passing_ the bridge. a. through   b. below   c. under   d. across 【例2】two planes are flying_ the city. a. through&#

5、160;  b. over ,   c. on ,   d, below 【例3】we can see a river running to the east_ the hill. a. under   b. below   c. over   d. on 【例4】do you see the kite _ the building. a. over   b. cross   c. on   d. above 【例5】is t

6、he street too narrow for the bus to go _? a. through   b. across   c. on   d. in 【例6】a mother camel was walking _ her son _ the desert. a. without; along   b. with; through c. next to; pass   d. beside; through 【例7】 the river runs_ the city. a. acros

7、s   b. through   c. over   d. from 【例8】it took us over an hour to walk_ this street. a. from   b. through   c. over   d. across 【例9】-when will mr. black come to beijing? - _ september 5th. a. on b. to c. at d. in【例10】 _ the night before chr

8、istmas day, parents fill their childrens stockings with small presents. a. of b. at c. to d. on【例11】there are some birds singing_ the trees.   a  in       b. on       c. at

9、60;       d. from 【例12】there are so many apples_ that tree. a. in    b, on       c. at     d. from 【例13】 the u

10、nited states is _ the south of canada and _ the east of japan.   a to; in   b. on; to   c. in; beside   d. at; on 【例14】 _ res

11、earch _ the universe scientists have put a lot of information _ computers.   a. with; over; at   b. on; at; to  c. in; about; into   d. for;

12、 with; through 【例15】when a piece of ice is taken _ a warm room, it gets smaller and smaller until _ the end it  disappears completely.       

13、;    a. in; in   b. out of; at   c. into; in   d. to; by  【課堂練習】：1. we traveled overnight to paris and arrived _ 5 oclock _ the morning.    a. on; in  b. at; in 

14、; c. at; on  d. in; on2. jack has studied chinese in this school _ the year of 2000.    a. since  b. in  c. on  d. by3. hong kong is _ the south of china, and macao is _ the west of hong kong.    a. in; to  b. to; to  c. to; in  d. in;

15、 in4. japan lies _ the east of china.    a. to  b. in  c. about  d. at5. i wont believe that the five-year-old boy can read five thousand words _ i have tested him myself.    a. after  b. when  c. if  d. until6. the book was so interesting

16、that he had read it for three hours _ he realized it.    a. when  b. until  c. after  d. before7. look the map china the wall, please. a after, of, in b at, of, in c after, in, on d at, of, on 8. - please remember to come to my birthday party. - i see. i'll come sat

17、urday evening. a in b at c on d for9. they will have a maths test two days a for b at c in d after10. my brother joined the army a 1989， march b in march， 1989 c march， 1989 d 1989， in march 11.it's good manners to wait  line       

18、; a in       b on       c at        d with 【課后作業】1.we had our breakfast a quarter seven a /， to b in， to c at， to d on， to2. it's good manners to wait line a in b on c at d with3. ho