关键句型二：表示"喜欢做某事"的句型（以“当他还是个小孩子时，他就喜欢上了游泳”为例）
1. He became interested in swimming when he was a little boy.
2. He was fond of swimming when he was a little boy.
3. He liked/ loved swimming very much when he was a little boy.
4. He developed an interest in swimming when he was a little boy.
5. He developed a strong passion for swimming when he was very young.
【passion n. 激情；热情】
关键句型三：表示"认真学习"的句型（以本题“他在学校学习很刻苦”为例）
1. He studied hard at school.
2. He worked hard at school.
3. He devoted himself to his studies.
4. He gave his studies everything he had.
5. He put himself into his study when he was at school.
6. He put his heart into his schoolwork when he was at school.