为什么都用for这个介词?Winehouse received six nominations for next month's Grammy Awards,including record and song of the year for "Rehab" and best album for "Back to Black."

问题描述:

为什么都用for这个介词?
Winehouse received six nominations for next month's Grammy Awards,including record and song of the year for "Rehab" and best album for "Back to Black."

第一个是:为.做准备而用的.
第二个和第三个同一个意思:用来给.