词汇选项：
1.These are the motives for doing it.
A reasons
B excuses
C answers
D replies
2.The river widens considerably as it begins to turn west.
A extends
B stretches
C broadens
D bends
3.Many economists have given in to the fatal lure of mathematics.
A error
B puzzle
C attraction
D contradiction
4.With immense relief I stopped running.
A no
B little
C scarce
D enormous
5.A great deal has been done to，remedy the situation.
A maintain
B improve
C preserve
D protect
6.John is collaborating with Mary in writing an article.
A cooperating
B marrying
C combining
D arguing
7.He will consolidate his power.
A strengthen
B win
C abandon
D unite
8.Many scientists have been probing psychological problems.
A solving
B exploring
C settling
D handling
9.Hearing problems may be alleviated by changes in diet and exercise habits.
A removed
B cured
C treated
D lessened
10.The conclusion can be deduced from the premises.
A gone
B derived
C done
D come
11.The food is insufficient for three people.
A scarce
B short
C marginal
D inadequate
12.Most of the butterflies perish in the first frosts of autumn
A die
B disappear
C migrate
D vanish
13.But ultimately he gave in.
A undoubtedly
B certainly
C finally
D necessarily
14.It is a complicated problem.
A strange
B complex
C difficult
D unusual
15.In Britain and many other countries appraisal is now a tool of management.
A evaluation
B production
C efficiency
D publicity
【参考答案】
1. A 2. C 3. C 4. D 5. B
6. A 7. A 8. B 9. D 10. B
11. D 12. A 13. C 14. B 15. A