第23题: [单项选择]His failure was ______his not listening to others’’ advice. A. contributed to B. attributed to C. devoted to D. dedicated to 参考答案:B 答案解析:contribute贡献；attribute把……归因于：devote奉献，献身：dedicate奉献，致力。本题是指失败被归因于……，应选B。译文：他的失败应归因于他不听别人的建议。
第33题: [单项选择]The relationship between exposure to ______ has not yet been determined. A. ozone and fall in lung function B. ozone and lung diseases such as asthma C. nitrogen dioxide and worse lung function D. smog and chronic bronchitis and emphysema 参考答案:D 答案解析:判断依据是来自原文中的一句话“It is suspected that long-term exposure to smog may result in chronic bronchitis(支气管炎
