来源：学大教育 时间：2013-10-31 16:41:46
(1) My uncle gave me a gift on my birthday．
由词组Give sb. sth. 得出被动sb. be given sth.
→ I was given a gift by my uncle on my birthday．
因此，由词组Give sth to sb. 得出被动sth. be given to sb.
→ A gift was given to me by my uncle on my birthday.
如：bring, give, hand, lend, offer, pass, pay, promise, sell, show, take, teach, tell 等。
① The cup with mixture was shown to the class.
② My bike was lent to her.
如：build, buy, cook, cut, choose, do, fetch, find, fix, get, keep, make, order, paint, play, sing 等。
① Mother made me a new skirt. (A new skirt was made for me. )
② The meat was cooked for us.
③ Some country music was played for us.
(1) The manager found the cook smoking in the kitchen.
→The cook was found smoking by the manager in the kitchen by the manager
(2) She told us to follow her instructions.
→We were told to follow her instructions by her.
(3) We often hear him play the guitar.
→He is often heard to play the guitar.
总结：带复合宾语(宾语+ 宾补)的动词改为被动语态时，一般把主动结构中的宾语改为主语，而宾语补足语保留在谓语动词后面；在see, watch, hear, notice, listen to, look at, make等动词后作宾语补足语的动词不定式都不带 to，但改成被动语态后都带to，这时不定式为主语补足语，也就是说不定式作主语补足语不存在省略to 的问题。