instead of 和rather than 有什么区别

rather than
conj. 宁可...也不愿(与其...倒不如,而不是)

Examples:
I think I'll have a cold drink rather than coffee.
我想喝冷饮, 不想喝咖啡.
It is a telex rather than a letter.
与其说它是一封信，不如说它是一封电传。

instead of 代替,而不是...

Examples:
Let's play cards instead of watching television.
咱们玩纸牌吧, 别看电视了.
The economy is shrinking instead of growing.
经济正在萎缩而不是在增长中。

rather than 是连词,表否定后边的,"而不是....."
instead of 是副词, 意思跟rather than差不多, 都表示否定后面的部分,只是在句子中的位置有些区别。

rather than
conj. 宁可...也不愿(与其...倒不如,而不是)

Examples:
I think I'll have a cold drink rather than coffee.
我想喝冷饮, 不想喝咖啡.
It is a telex rather than a letter.
与其说它是一封信，不如说它是一封电传。

instead of 代替,而不是...