Television first appeared some fifty years ago in the 1950s. Since then, it (41) ________ one of the most popular sources of entertainment for (42) ________ the old and the young. Television can actually satisfy almost all kinds of taste. It (43) ________ cartoons for children, world news, music and many other programs. If someone is interested in (44) ________, for example, he can just choose the right sports channel. There he (45) ________ enjoy a broadcast of an international football match (46) ________ it is actually happening. Television is also a very (47) ________ way for companies to advertise their products.
It is not too hard for us to see (48) ________ there is a TV set in almost every home today. And, engineers are developing (49) ________ TV which allows communication between (50) ________ and producers.
41. A. is B. was C. has been D. will be
42. A. between B. both C. only D. most
43. A. offers B. performs C. gives D. shows
44. A. games B. channels C. entertaiment D. sports
45. A. must B. can C. should D. ought to
46. A. while B. during C. before D. then
47. A. cheap B. helpful C. useful D. economic
48. A. who B. where C. why D. when
49. A. interact B. interactive C. interacted D. interaction
50. A. buyers B. farmers C. teachers D. viewers
II. Read the following passage and fill in each numbered blank with one suitable word. (10 points)
The world's oceans are so vast that they can deal with the present levels of pollution. However, little (51) ________ known about the long-term effects (52) ________ such slow poisoning. The most serious (53) ________ of modern time is that man is destroying the earth's natural resources and transforming huge areas into wasteland. As (54) ________ result, it is becoming very difficult to grow enough to feed the world's rapidly increasing (55) ________. A way of protecting all the wildlife on the earth must also (56) ________ found as many species are in (57) ________of disappearing completely from the face of the earth. The dangers, however, are not only limited to the land and the (58) ________. The smoke in the atmosphere, for example, is increasing so (59) ________ that the amount of sunlight has been reduced in many cities. Man's whole environment is (60) ________ changed in a serious way.
III. Read the following passage and choose the correct answer A, B, C or D. (10 points)
One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a wide range of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pour into the lake every day. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.
Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.
61. According to the writer, one environmental problem in the world today is ________ .
A. acid rain B. industrial pollution
C. safe water shortage D. population explosion
62. Many sources of water are not drinkable because of _______ .