大意题例题1 •.Which of the following is the most appropriate title for the passage? •.A. The Communal Life of Bees. •.B. The Structure of the Bees. •.C. The Organization of Insect Colonies. •.D. The Life of Social Insects. •.Topic sentence (1st sentence): •.Honeybees cannot live alone. 大意题例题2 •.This passage is primarily concerned with •. A. the greenhouse effect •. B. the burning of fossil fuels •. C. the potential effect of air pollution •. D. the likelihood of a new ice age •.Topic sentences: It was once thought that air pollution affected only the area immediately around large cities with factories and/or heavy automobile traffic. Today, we know that although these are the areas with the worst air pollution, the problem is literally worldwide 大意题例题3 •.The best title for the passage is __________. •.A. The 1992 Los Angeles Riots •.B. The Impact of Media on Current Events •.C. The 1989 San Francisco Earthquake and the 1992 Los Angeles Riots •.D. How Media Cover Events •.Topic sentence: The media can impact current events. 大意题例题4 •.The best title for the passage is __________. •.A. The Nature of Science and Scientists •.B. Biology and the Scientific Age •.C. Hypotheses and Theories •.D. On Distinguishing Fact from Fiction •.Topic sentence: The word science is heard so often in modern times that almost everybody has some notion of its meaning. •.Concluding sentence: The host of scientists dedicating their lives to pure science are not apologetic （抱歉）about ignoring the practical side of their discoveries. they know from experience that most knowledge is eventually applied.