高效课堂宝典训练九年级英语沪教版
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( )4. What is the main idea of this passage?
A. To introduce Deng Jiaxian's educational background.
B. To tell the story of how Deng Jiaxian got radiation sickness.
C. To show Deng Jiaxian's contributions to China's nuclear development and his selfless spirit.
D. To describe Deng Jiaxian's life in the United States.
答案：C
解析：主旨题需概括文章核心内容。选项A仅提及教育背景，片面；B只讲辐射病故事，非主要；D描述美国生活，未体现核心贡献。结合常识及选项逻辑，Deng Jiaxian作为核科学家，文章核心应是其对中国核发展的贡献及无私精神，C符合。
( )5. Which of the following statements best describes Deng Jiaxian?
A. He was a person who only cared about his own achievements.
B. He was a selfless scientist who dedicated his life to China's nuclear cause and always put his colleagues and the country first.
C. He was a scientist who gave up easily when facing difficulties.
D. He was a person who preferred working alone rather than collaborating with others.
答案：B
解析：推断人物特征题。A“只关心个人成就”与无私精神相悖；C“轻易放弃”、D“喜欢独自工作”均不符合科学家坚毅合作的形象。B“无私奉献于中国核事业，将同事和国家放在首位”符合对Deng Jiaxian的正面描述及常识，为最佳选项。
