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Part ⅢVocabulary and Structure(20 minutes)
Directions: There are 30 incomplete sentences it: this part. For each sentence there are four choices marked A), B), C) and D). Choose cite ONE answer that best completes the sentence. Then mark the Corresponding letter on the Answer Sheet with a single line through the centre.
41. The beam that is ________by a laser differs in several ways from the light that comes out of a flashlight.
A) emitted C) motivated
B) transported D) translated
42. We booked rooms at the hotel ________we should find no vacancies on our arrival.
A) whenever C) since
B) if D) lest
43. Modern forms of transportation and communication have done much to ________the isolation of life in Alaska.
A) break through C) break into
B) break down D) break out
44. We know through painful experience that freedom is never by the oppressor; it must be ________by the oppressed.
A) demanded C) required
B) commanded D) requested
45. Color and sex are not relevant ________whether a person is suitable for the job.
A) on C) to
B) for D) with
46. ________the enormous flow of food from the entire globe, these countries have for many years not felt any population
pressure.
A)Thanks to C) In line with
B) By means