rather 常用于表达偏好、程度或委婉语气,常见结构包括 “rather than” 和 “would rather”。
I prefer tea rather than coffee.
She decided to walk rather than drive.
I’d rather stay home tonight.
instead 表示“代替”或“作为替代”,常单独使用或与 “of” 搭配(即 “instead of”),强调替换关系。
He didn’t go to the party. He stayed home instead.
She drank water instead of soda.
We’ll take the bus instead.