ch he failed to obtain 10 years ago.
26. Plants will emit an increased amount of heat when they are _______
A) sprayed with pesticides B) facing an infrared scanner
C) in poor physical condition D) exposed to excessive sun rays
27. In order to apply pesticide spraying precisely, we can use infrared scanning to
_______.
A) estimate the damage to the crops
B) measure the size of the affected area
C) draw a color-coded map
D) locate the problem area
28. Farmers can save a considerable amount of pesticide by _______.
A) resorting to spot-spraying B) consulting infrared scanning experts
C) transforming poisoned rain D) detecting crop problems at an early stage
29. The application of infrared scanning technology to agriculture met with some
difficulties _______.
A) the lack of official support B) its high cost
C) the lack of financial D) its failure to help increase production
30. Infrared scanning technology may be brought back into operation because of _______.
A) the desire of farmers to improve the quality of their produce.
B) growing concern about the excessive use of pesticides on crops
C) the forceful promotion by the Department of Agriculture
D) full support from agricultural experts
Part III Vocabulary and Structure (20 minutes)
Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
31. The medicine is on sale everywhere. You can get it at _______ chemist's.
A) each B) some C) certain D) any
32. You cannot be _______ careful when you drive a car.
A) very B) so C) too D) enough
33. In general, the amount that a student spends for housing should be held to one-
fifth of the total for living expenses.
A) acceptable B) advisable C) available D) applicable
34. Every man in this country has the right to live where he wants to, _______the
color of his skin.
A) with the exception of B) in the light of
C) by virtue of D) regardless of
35. Housewives who do not go out to work often feel they are not working to their full
_______.
A) capacity B) strength C) length D) possibility
36. I hate people who _______ the end of film that you haven't seen before.
A) reveal B) rewrite C) revise D) reverse
37. He's watching TV? He's _______ to be cleaning his room.
A) known B) supposed C) regarded D) considered
38. The old couple decided to ________ a boy and a girl though they had three children
of their own.
A) adapt B) bring C) receive D) adopt
39. The government is trying to do something to _______ better understanding between
the two countries.
A) raise B) promote C) heighten D) increase
40. The newspaper did not mention the _______ of the damage caused by the fire.
A) range B) level C) extent D) quantity
41. The soldier was of running away when the enemy attacked.
A) scolded B) charged C) accused D) punished
42. Had he worked harder, he _______ the exams.
A) must have got through B) would have got through
C) would get through D) could get through
43. Only under special circumstances _______ to take make?up tests.
A) are freshmen permitted B) freshmen are permitted
C) permitted are freshmen D) are permitted freshmen
44. I had just started back for the house to change my clothes _______ I heard voices.
A) as B) when C) after D) while
45. It seems oil _______ from this pipe for some time. We'll have to take the machine
apart to put it rignt.
A) had leaked B) is leaking C) leaked D) has been leaking
46. When he arrived, he found _______ the aged and the sick at home.
A) none but B) none other than C)nothing but D) no other than
47. The pressure _______ causes Americans to be energetic, but it also puts them under
a constant emotional strain.
A) to compete B) competing C) to be competed D) haveing competed
48. Your hair wants _______. You'd better have it done tomorrow.
A) cut B) to cut C) cutting D) being cut
49. As teachers we should concern ourselves with what is said, not what we think _____.
A) ought to be said B)must say C) have to be said D) need to say
50. Once environmental damage _______, it takes many years for the system to recover.
A) has done B) is to do C) does D) is done
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