时间:2022-08-30 12:22:20
众所周知,我们可以用“be + V-ing”来表示正在进行的动作,但介词也具有这样的功能。本文就介绍一些常见的具有表示进行功能的介词。
一般情况下,介词表示“进行”意义时,多与动词的同源名词搭配。
1. at表示“处于……状态”。
含at的常见短语有: at work 在工作、在上班; at play在玩耍; at lunch在吃午饭; at rest在休息中。例如:
Tom is at work. 汤姆正在工作。
Li lei is at play. 李磊正在玩。
2. in表示状态或状况
含in的常见短语有: in pursuit在追赶、在追踪、在追求; in motion (= moving) 在运动。例如:
The ship is in motion. 船正在行驶中。
The line is in use. 电话占线。
3. on用于说明活动或状况
含on的常见短语有: on duty 在值班; on show/exhibition在展览中; on fire在燃烧中; on strike 正在罢工; on sale 在销售; on holiday在度假。例如:
We are on holiday. 我们正在度假。
The books are on sale. 书正在销售。
The workers are on strike. 工人们在罢工。
The pictures are on show. 画正在展览。
4. under在……过程中
含under的常见短语有: under discussion在讨论中; under construction正在建设中; under repair 正在修理; under investigation 正在调查; under way 正在进行中; under attack遭抨击、受到攻击。例如:
Preparations are well under way for a week of special events in May. 五月份特别活动周的准备工作正在顺利展开。
The program is still under discussion. 这个计划正在讨论中。
The case is under investigation. 这个案子正在调查中。
【专项练习】
1. The pictures are___________.
A. in show B. under show C. on show D. showing
2. Now Iraq and America aren’t___________.
A. at war B. fought C. on war D. in war
3. The road is ___________.
A. building B. at construction
C. on construction D. under construction
4. Look, they are___________.
A. in play B. under play C. at play D. for play
5. Listen! The plan is___________.
A. at discussion B. on discussion
C. under discussion D. above discussion
6. Don’t talk when you are___________.
A. in table B. for table C. with tabled D. at table
7. The building is___________ .
A. on fire B. in fire C. at fire D. under fire
8. ―What are you doing?
―Oh, I am___________.
A. in holiday B. on holiday
C. at holiday D. under holiday
9. Help! We are___________by a dog.
A. on attack B. in attack C. under attack D. at attack
10. A tiger is coming and the zebra is___________.
A. at danger B. on danger C. in danger D. for danger
介词专项练习答案
Key:1. C 2. A 3. D 4. C 5. C 6. D 7. A 8. B9. C10. C