実を結ぶ英文法　発展問題編

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69直説法と仮定法7STEP ■■■123　読解：文法ポイントを意識しながら読み解こう-13分50目安時間次の英文を読んで，あとの設問に答えなさい。 Among the greatest discoveries of science not a few have been made by accident. Setting out to reach a certain goal, the investigator chances in his way upon a law, or an element, that had no place in his purpose. e discovery is a by-product of his activity. In a similar way, some of the most valuable resources of industry are by-products. ⑴Not many years ago the gas companies would gratefully give coal-tar free to anyone who would take it away. Now it is sold at a prot to farmers, to dyers, to sweetmeat-makers*, to manufacturers of scent and soap. Setting aside such accidents as the pearl, which is more precious than the oyster, human work of all kinds might be found to furnish comparable instances. When Swi wrote the travels of Gulliver, nothing can have been further from his mind than the amusement of little boys and girls. e pleasure that some ten generations of children have taken in his book is a by-product; but ⑵it has enriched the world far more than the savage satire that was all he intended. Sir Walter Raleigh sailed the ocean for the glory of God and of his country; and, if legend speaks true, he found tobacco and the potato. ⑶It would be an interesting and beneficial work to study the history of by-products through all forms of human activity, and to record the innumerable instances in which the accident has been more serviceable to mankind than the purpose. The value of by-products strikes with peculiar force on the mind of one who contemplates an ancient and deserted building. England is dotted with ruined castles. ey were built in times of universal enmity* and hatred, when lordship* warred against 5101520

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