examined and tested in advance so that specially trained expert would know exactly what action was needed in a given emergency. 26. 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 27. The idea of a permanent national rescue service was welcomed by of those present at the meeting of the British Association. A)all B)the most outspoken C)some D)most 28. 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) lorry once crashed into a reservoir D)a terrible accident could happen in a nuclear power station 29. 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 veen detergent and chal 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 30 Of the following suggested titles the one most accurately summing up the passage Is A)The Dangers of Modern Technology B)The Problem of Oil Pollution C)Some Interesting Accidents D)A Meeting of the British Association Passage 3 Questions 31 to 35 are based on the following passage Each for its own reason, the study of residential mo bil ity has been a concern of three disciplines: sociology, economics, and geography. For the economist, residential shifts provide a means for studying the housing and land markets Geographers study mobility to understand the spatial distributions of population types. For the sociologist, interest in residential mobility has two sources: one stemming from the study of human ecology and the other from a concern with the peculiar qualities of urban life. Of course there are clearly overlapping concerns and it is often difficult to discern the disciplinary origins of a researcher by sole examining the kinds of questions he or she raises about mobilityexamined and tested in advance so that specially trained expert would know exactly what action was needed in a given emergency. 26.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 27.The idea of a permanent national rescue service was welcomed by ___ of those present at the meeting of the British Association. A) all B) the most outspoken C) some D) most 28.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 29.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 30.Of the following suggested titles the one most accurately summing up the passage is ___. A) The Dangers of Modern Technology B) The Problem of Oil Pollution C) Some Interesting Accidents D) A Meeting of the British Association Passage 3 Questions 31 to 35 are based on the following passage. Each for its own reason, the study of residential mobility has been a concern of three disciplines: sociology, economics, and geography. For the economist, residential shifts provide a means for studying the housing and land markets. Geographers study mobility to understand the spatial distributions of population types. For the sociologist, interest in residential mobility has two sources: one stemming from the study of human ecology and the other, from a concern with the peculiar qualities of urban life. “Of course, there are clearly overlapping concerns and it is often difficult to discern the disciplinary origins of a researcher by sole examining the kinds of questions he or she raises about mobility