PUBLISHED : Wednesday, 19 December, 2007, 12:00am
UPDATED : Wednesday, 19 December, 2007, 12:00am

Word Power

Match the following words with their meanings on the right.

1 compelled

2 mandatory

3 incentives

4 persuade

5 efficiency

a. forced

b. cause somebody to do something by arguing or reasoning with him

c. the state of being able to work well without wasting time or energy

d. things that encourage somebody to do something

e. compulsory or required by law

Fill in the blanks with the words you have learned.

6 He can finish the task in one day. His __________ is well-known among his colleagues and friends.

7 I really want him to join our gathering. How can we ____________________ him to join us?

8 In the face of public outcry, the striking workers were ____________________ to resume their work.

9 The government has offered many ____________________ to local companies to adopt green practices.

10 Attendance is ____________________ at all meetings. You'll have to cancel your doctor's appointment.


1 What do you do to conserve energy?


1 How could poor air quality affect Hong Kong's economy?

2 Should the government introduce legislation to improve air quality?

3 How does poor air quality affect our health?

Web links


Clear the Air, a voluntary group that pushes for improved air quality


government site on the air pollution index (API)


Greenpeace site on air pollution


1. a; 2. e; 3. d; 4. b. 5. c; 6. efficiency; 7. persuade; 8. compelled; 9. incentives; 10. mandatory