Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B, C and D. You should choose the ONE that best fits into the passage and mark the corresponding letter on the Answer Sheet.
Trees are useful to man 41 three very important ways: they provide him 42 wood and other produces; they help to check soil erosion and they help to 43 drought and floods.
44, in many parts of the world, man has not realized that the 45 of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large 46, only to find that 47 them he has lost the best friend he had.
Two 48 years ago a rich and powerful country cut down its trees to build warships 49 to gain itself an empire. It gained the empire, but without its trees, its soil became hard and poor. When the empire 50 to pieces, the home country found itself faced by floods and starvation.
51 a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this, the villager wants wood to cook his food 52, and he can earn money by making charcoal or selling wood to the townsman. He is usually too lazy or too 53 to plant and look after new trees. So, 54 the government has a good system of control, or can educate the people, the forests will slowly disappear.
This does not only mean that the villagers’ sons and grandsons have 55 trees. The results are even more serious, for where there are trees their roots break the soil up allowing the rain to sink in and also bind the soil, thus preventing 56 washed away onthe 57 surface, causing floods and carrying away 58 it the rich topsoil, in which crops grow so well. When all the topsoil is 59, nothing remains 60 worthless desert.
41. A. withB. atC. inD. through
42. A. ofB. forC. withD. as
43. A. preventB. stopC. forbidD. deny
44. A. GenerallyB. fortunatelyC. UnfortunatelyD. Probably
45. A. treesB. usesC. productsD. third
46. A. numbersB. membersC. amountsD. accounts
47. A. withB. forC. withoutD. to
48. A. thousandB. thousandsC. thousand ofD. thousands of
49. A. whereB. which areC. with whichD. which they are