instead是副词,一般放在句首或句末。而instead of 是介词短语,表示“代替”时, 含有“对比”的意思,其后常跟名词、代词或v-ing形式。如:
Jack didn’t study law. Instead, he decided to become an actor.
杰克没有学法律,而是决定作一名演员。
If you can’t go to the meeting, I can go instead.
如果你不去开会, 我可以(代替你)去。
Could I have tuna instead of ham?
我能否要金枪鱼而不是火腿?
Miss Wang is ill. I’ll teach you instead of her.
王老师病了,我代替她给你们上课。
We walked down the stairs instead of taking the elevator.
我们走着下楼梯而没有乘电梯。