四、阅读短文，回答问题
In February 1950，mathematician（数学家）Hua Luogeng wrote an open letter to all Chinese students studying in the US while he was returning to China. The letter moved many people and showed the strong patriotism（爱国精神）of many overseas Chinese scientists who
were looking forward to returning to their homeland.
The documentary Return tells the stories of many scientists who decided to come back to China in the 1950s. “It not only shows their historical backgrounds but also their feelings and a deep sense of patriotism,” said Li Zheng, who directed the documentary.
Return shares many unknown stories of these scientists. In Hua’s case, many people don’t know how important his work was in the early development of computer science in China. In March, 1950, Hua left his job at Princeton University’s Institute for Advanced Study and returned to China. At a time when few people knew about computers, Hua already understood their potential（潜能）for scientific development. The next year, he became the director of the Institute of Mathematics at the Chinese Academy of Sciences（中国科学院数学研究所）and set up China’s first computer research team. Li said Hua’s story moved him. “Hua was more than just a mathematician. He had big ideas and was very brave, especially for his time.”
Talking about the influence of Return on young people, Li said, “I hope teenagers will learn more about history from this documentary and be encouraged by the spirit of these scientists. Today’s young people live in a well-off society, but we must never forget the contributions of those who came before us.”
1. Who was Hua Luogeng’s open letter for?
2. What is the documentary Return mainly about?
3. When did Hua set up China’s first computer research team?
4. What do you think about Hua Luogeng?
解析：
【分析】
做这类英语阅读理解题，需先明确每个问题的关键词，再带着关键词回到原文定位对应段落，提取关键信息即可得出答案。比如第1题找“open letter”的接收对象，第2题找“documentary Return”的内容，第3题找“set up China’s first computer research team”的时间，第4题结合原文对华罗庚的评价总结。
【解析】
1. 根据原文第一段第一句“In February 1950，mathematician Hua Luogeng wrote an open letter to all Chinese students studying in the US”，可直接提取公开信的对象；
2. 根据原文第二段第一句“The documentary Return tells the stories of many scientists who decided to come back to China in the 1950s”，可直接提取纪录片Return的主要内容；
3. 根据原文第三段，华罗庚1950年3月回国，“The next year, he became the director... and set up China’s first computer research team”，1950年的下一年是1951年，由此确定时间；
4. 原文提到华罗庚是伟大的数学家，兼具爱国精神、远见与勇气，结合要求总结评价。
【答案】
1. All Chinese students studying in the US.
2. The stories of many scientists who decided to come back to China in the 1950s.
3. In 1951.
4. He is a great man.
【知识点】
英语阅读理解，细节理解，主旨大意
【点评】
本题为英语阅读理解题，主要考查学生快速定位原文信息的能力，题目围绕原文细节设置，难度适中，学生通过仔细阅读原文即可找到对应答案。
【难度系数】
0.6
