49．C'此处表示他把妻子周围的石头都挖开了。surrounding 在此处作形容词，意为“周围的，周边的”。

　　50．C'最后，妻子的呼吸慢慢恢复了正常。steady“均匀的，平稳的”，符合语境。

　　第三部分：阅读理解(共20小题；每小题2分；满分40分)

　　阅读短文，并从短文后所给的A、B、C、D四个选项中选出符合短文内容的最佳选项。

　　A

　　Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first person to win it twice.However, few people know that she was also the mother of a Nobel Prize winner.

　　Born in September, 1897, Irene Curie was the first of the Curies' two daughters.Along with nine other children whose parents were also famous scholars, Irene studied in their own school, and her mother was one of the teachers.She finished her high school education at the College of Sévigné in Paris.

　　Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and physics.When World War Ⅰ began, Irene went to help her mother, who was using X­ray facilities (设备) to help save the lives of wounded soldiers.Irene continued the work by developing X­ray facilities in military hospitals in France and Belgium.Her services were recognised in the form of a Military Medal by the French government.

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