He likes swimming in the lake, but doesn't like fishing by the river 或he prefers swimming in the lake to fishing by the river 或He likes swimming in the lake instead of / rather than fishing by the river instead of doing sth. = rather than doing sth.
补充: He【prefers】【to】 swim in the lake, but he【doesn't】like【going】 fishing in the river. He likes swimming in the lake, but he doesn't like fishing by/near the river. 祝你学习进步,更上一层楼!请记得采纳,谢谢!(*^__^*)