眾所周知,我們可以用“be + V-ing”來表示正在進行的動作,但介詞也具有這樣的功能。本文就介紹一些常見的具有表示進行功能的介詞。
一般情況下,介詞表示“進行”意義時,多與動詞的同源名詞搭配。
1. at表示“處于……狀態”。
含at的常見短語有: at work 在工作、在上班; at play在玩耍; at lunch在吃午飯; at rest在休息中。例如:
Tom is at work. 湯姆正在工作。
Li lei is at play. 李磊正在玩。
2. in表示狀態或狀況
含in的常見短語有: in pursuit在追趕、在追蹤、在追求; in motion (= moving) 在運動。例如:
The ship is in motion. 船正在行駛中。
The line is in use. 電話占線。
3. on用于說明活動或狀況
含on的常見短語有: on duty 在值班; on show/exhibition在展覽中; on fire在燃燒中; on strike 正在罷工; on sale 在銷售; on holiday在度假。例如:
We are on holiday. 我們正在度假。
The books are on sale. 書正在銷售。
The workers are on strike. 工人們在罷工。
The pictures are on show. 畫正在展覽。
4. under在……過程中
含under的常見短語有: under discussion在討論中; under construction正在建設中; under repair 正在修理; under investigation 正在調查; under way 正在進行中; under attack遭抨擊、受到攻擊。例如:
Preparations are well under way for a week of special events in May. 五月份特別活動周的準備工作正在順利展開。
The program is still under discussion. 這個計劃正在討論中。
The case is under investigation. 這個案子正在調查中。
【專項練習】
1. The pictures are___________.
A. in show B. under show C. on showD. 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
介詞專項練習答案
Key:1. C 2. A 3. D 4. C 5. C 6. D 7. A 8. B9. C10. C