高效課堂寶典訓練九年級英語滬教版
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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：主旨題需概括文章核心內容。選項A僅提及教育背景，片面；B只講輻射病故事，非主要；D描述美國生活，未體現核心貢獻。結合常識及選項邏輯，Deng Jiaxian作為核科學家，文章核心應是其對中國核發展的貢獻及無私精神，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：推斷人物特征題。A“只關心個人成就”與無私精神相悖；C“輕易放棄”、D“喜歡獨自工作”均不符合科學家堅毅合作的形象。B“無私奉獻于中國核事業，將同事和國家放在首位”符合對Deng Jiaxian的正面描述及常識，為最佳選項。
