1. What did Robert buy with his saved money at his young age?

2. Where did Jane Keller work?

3. How were Robert's subjects in Bethel College?

4. What do you think of Robert Green?

5. 将文中画线部分翻译成中文。

【解析】：1. 题目问Robert年轻时用攒的钱买了什么。短文第二段提到“From time to time， he bought old books with his saved money and read them all.”，所以答案是Old books.
2. 题目问Jane Keller在哪里工作。第二段提到“But one person， Jane Keller did know him. She worked in a library.”，所以答案是In a library.
3. 题目问Robert在Bethel College的科目怎么样。第三段提到“He got an A in every subject.”，所以答案是He got an A in every subject.
4. 题目问对Robert Green的看法。从短文可知他31岁上大学，努力学习，后来获得博士学位，是个勤奋、有毅力的人，所以答案可以是He is hard - working and persistent.（答案合理即可）
5. 画线部分“To his teachers' surprise， he finished college in three years.”，“To one's surprise”是“令某人惊讶的是”，“finished college”是“完成大学学业”，“in three years”是“在三年内”，所以翻译为“令他的老师们惊讶的是，他三年内就完成了大学学业。”
【答案】：1. Old books.
2. In a library.
3. He got an A in every subject.
4. He is hard - working and persistent.（答案不唯一，合理即可）
5. 令他的老师们惊讶的是，他三年内就完成了大学学业。