介词-prep.

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介词（Preposition）：用来表示它后面的名词、代词、短语或从句与其他句子成分的关系。

一、常见介词

1. The bird isinthe cage；

2. He put his handsinsidehis pockets.

3. Sara is divingintothe river;

4. They are waitingoutsidethe bank;

5. There is a small tablebesidemy bed;

6. Tom is gettingoutof the car;

7. The mug isonthe table;

8. The vase ison top ofthe bookshelf;

9. Austin isatthe bus stop;

10. Sam goes to schoolbybike;

11. Ruby is sittingnext toWendy;

12. Her home isnearour school.

13. Linda is goingtoLondon;

14. The letter isfromChicago;

15. Cici is walkingtowardsthe sun;

16. Katerine is runningaway fromthe fire;

17. There is a bridgeoverthe river;

18. The repairman isunderthe car;

19. The plane isabovethe clouds;

20. The temperature isbelowzero;

21. The car isin front ofthe bus;

22. The man isin the front ofthe bus;

23. The little boy isbehindthe bus;

24. The students are goingupthe stairs;

25. The teacher will comedownstairs soon;

26. The girl is runningacrossthe road;

27. The cars are goingthroughthe tunnel;

28. Alice is walkingalongthe street alone;

29. The car is goingpastthe house;

30. The house isamongthe trees;

31. The hospital isbetweenthe schoolandthe bookshop;

32. Austin is standingoppositeBlair;

33. They are runningaroundthe track.

二、介词的用法

1. in、on、at+时间。

a, in+年\季节\月份\一星期或更长时间\一天的一部分，如：

in 1988, in winter, in July, in this week,

in the summer holiday, in the morning;

b, on+一天，如：

on Monday, on July 27,

on Tuesday morning, on Chistmas Day;

c, at+具体时间\就餐时间\二天或三天，如：

at three o'clock, at lunch time, at Christmas

2. in、on、at+地点。

a, in+房间\城镇\国家，如：

in the kitchen, in the town,

in Shenzhen, in America;

b, on+楼层\路，如：

on the second floor, on the road;

c, at+旅途中的地点\住宅\地址\社交场合，如：

This train stops at Wuhan;

Don't worry, your son is at Tim's house now;

She lives at No. 30 Shuiwan Road.

They had a wonderful time at the party.

3. for, since, ago, before的用法。

a, for和since常用于现在完成时，for表示持续了多久，since表示从何时开始，如：

I have been waiting for twenty minutes;

Maria has been living here since last year.

b, ago常用于过去时，表示现在之前的一段时间，如：

I passed my driving test 5 years ago;

c, before常用于过去完成时，如：

Vicky finally received a reply to the letter she had written weeks before.

4. during、while、by、until、as、like的用法。

a, during还是while？during后是短语，while后是句子，如：

I often read during a meal;

I often read while I'm eating;

It happened during the night;

It happened while they were sleeping;

b, by还是until？ (till是非正式的用法)，如：

I'm very busy this week, I have to finish this report by thursday;

I'm very busy this week, I won't have any time until thursday;

I slept till ten o'clock;

c, as还是like？as表示工作或功能，like表示相似的情况，(as if用于从句之前), 如：

she works as a fashion model;

she dresses like a fashion model;

Jhon looks really awful, he looks as if he's been up all night.

三、复杂介词

1. 常见双词介词，如：

according to 按照；regardless of 不顾；

because of 因为； but for 要不是；

up to 直到；except for 除了；

2. 常见三词介词，如：

in addition to 除……以外

by means of 利用

in comparison with 与……相比

in point of 就……而言

3. 常见四词介词，如：

on the part of 在……方面

for the sake of 看在……的面子上

under the support of 在……的支持下

in the process of 在……的进程中