Part Ⅲ Cloze (15 minutes 10%)

　　Directions: In this part there is a passage with 20 blanks in it. For each blank there are four choices marked A, B, C and D. You are required to choose the one that best fills into the passage and mark the corresponding letter on the Answer Sheet with a single line through the center.

　　A growing world population and the discoveries of science may alter this pattern of ____41____ in the future. As men slowly learn to master diseases, control floods, prevent famines, and stop wars, ____42____ people die every year; and ____43____ the population of the world is ____44____ increasing.

　　When numbers rise the extra mouths must be ____45____. New lands must be brought under ____46____, or land already farmed made to ____47____ larger crops. In some areas the ____48____ land is largely so ____49____ cultivated that it will be ____50____ to make it provide more food. In some areas the population is so ____51____ that the land is parceled out in units too tiny to allow for much ____52____ in farming methods. ____53____ a lager part of this farming population drown off into industrial occupations, the land might be farmed much more productively by modern methods.

　　There is now a race for science, technology, and industry to keep the output of food rising ____54____ than the number of people to be fed. New strains of crops are being developed which will thrive in ____55____ climates; there are now farms ____56____ the Arctic Circle in Siberia and North America; dams ____57____ the waters of great rivers to ____58____ water for the fields in all seasons; industrial chemistry provides fertilizers to ____59____ particular soils. Every year some new means is ____60____ to increase or to protect the food of the world.

　　41. A. contribution B.destruction C. construction D. distribution

　　42. A. fewer B. much C. many D. little

　　43. A. first and foremost B. on the contrary

　　C. in consequence D. to begin with

　　44. A. variably B. hardly C. steadily D. evenly

　　45. A. deposited B. fed C. fulfilled D. disposed

　　46. A. generation B. cultivation C. starvation D. evaluation

　　47. A. manufacture B. conceive C. generate D. yield

　　48. A. accessible B. acceptable C. assessable D. achievable

　　49. A. attentively B. extensively C. intensively D. tentatively

　　50. A. natural B. easy C. difficult D. inherent

　　51. A. tense B. strained C. stressed D. dense

　　52. A. development B. movement C. refinement D. improvement

　　53. A. Were B. Are C. Is D. Was

　　54. A. more B. less C. quicker D. slower

　　55. A. unchangeable B. unfavorable C. unimaginable D. unalienable

　　56. A. beyond B. except C. besides D. from

　　57. A. hold off B. hold on C. hold back D. hold to

　　58. A. affirm B. convince C. secure D. ensure

　　59. A. suit B. adapt C. correspond D. conform

　　60. A. calculated B. projected C. devised D. plotted