【正文】 ys the AIDS virus can be passed, which of the following statements is wrong? A. An AIDS mother can pass on the virus to her unborn child.B. The AIDS virus can be passed on through infected blood.C. The AIDS virus can be passed on by shaking hands and sharing belongings.D. The AIDS virus is passed sexually. 73. The expression a pregnant woman (Para. 3) means____ . A. a woman who has an unborn child in the bodyB. a woman who is taking drugC. a woman who has the AIDS virusD. an unmarried mother 74. The fifth paragraph is mainly about____ . A. the results of an AIDS infectionB. the possible symptoms of an AIDS infectionC. how the AIDS virus is spreadD. the diseases AIDS patients easily have 75. When the AIDS virus attacks our defense system____ . A. it starts to destroy our white blood cellsB. we begin to feel tiredC. it means we will die very soonD. our white blood cells can control it　 參考答案：7175DCABAPASSAGE TWO(每題2分,共5題)The pollution of Hong Kong39。s beaches by oil from a damaged tanker last year recalls a similar incident which took place in Britain in 1967 when the Torrey Canyon, a huge oil tanker, split in two and caused disaster in coastal areas. Shoals of fishes were killed, sea birds hopelessly fouled with oil and coastal holiday resorts put out of business for several weeks. As a result of this particular incident scientists are being restless at the thought of Britain39。s inability to cope with national disasters on a large scale. The reason for their concern is that technology is rapidly outstripping(超越)man39。s ability to control it. Oil tankers, for instance, have been allowed to get bigger and bigger without sufficient thought being given to emergency braking and manoeuvring arrangement. Collisions at sea continue, but little effect has been made to develop safety devices as effective as those used for aircraft.Scientists were outspoken in expressing their concern during a recent meeting of the British Association. Unanimous approval was voiced when the leading speaker urged that a permanent national rescue services should be established, equipped for any emergency and ready to move off immediately.Of all the possible disasters mentioned, the one promoting most discussion was a major release of radioactivity from a nuclear power station. One does not need a particularly vivid imagination to visualize the other possibilities discussed. What would be the effect of a jumbojet crashing on a large chemical plant handling destroying liquids? Could the tapping of natural gas lead to any form of collapse? Suppose a lorry full of a highly poisonous chemical crashed unseen into a large reservoir? Dams can burst, abnormal conditions can lead to massive electrical blackouts.An intensive study of such possibilities could at least reduce the effects of future disasters. For example, it would mean that a number of technical alternatives (such as the choice between detergent or chalk for dispersing oil) could be examined and tested in advance so that specially trained expert would know exactly what action was needed in a given emergency.　 76. The main idea of the second paragraph is that ____. :A. safety precautions in aircraft are not as effective as those used on shipsB. modern oil tankers can stop or turn easily in spite of their sizeC. there are now fewer collisions at sea because of modern safety devicesD. oil tankers are so big that special devices are needed 77. The idea of a permanent national rescue service was weled by ____ of those present at the meeting of the British Association.:A. all B. the most outspoken C. some D. most 78. In the fourth paragraph the writer states that ____ .:A. on one occasion radioactivity escaped from a nuclear power stationB. an areoplane carrying destroying liquids might crash into chemical plantC. a lorry once crashed into a reservoirD. a terrible accident could happen in a nuclear power station 79. The main idea of the final paragraph is that ____. :A. in an emergency all the technical alternations should be studiedB. experts should be specially trained to determine the exact difference between detergent and chalkC. we ought to decide what measures to take before a disaster occursD. technical experts should be examined and tested to see whether they are capable of selecting the right course of action in a future emergency 80. Of the following suggested titles the one most accurately summing up the passage is ____ . :A. The Dangers of Modern TechnologyB. The Problem of Oil PollutionC. Some Interesting AccidentsD. A Meeting of the British Association參考答案：7680 DADCA窗體底端