○2 英语中有些动词用主动语态表示被动语态。The cloth washes well ./ This kind of bags sells well. / The shoes wear long. / The knife cuts well . / The pen writes smoothly . / This coat lasts long .

　　○3 在英语中有时"be + V-ed"结构并不是被动语态，而是系表结构。The mountains were covered with snow .

　　○4 在"主语+谓语+宾语+宾语补足语"的结构中，要补留宾语补足语。We found the door broken. / The door was found broken.

　　○5 宾语补足语为省to的不定式，变为被动语态后，要还原to。He made me laugh. / I was made to laugh .

　　○6 如果短语动词是及物动词时，可以用被动语态，但不能遗漏所含的介词或副词。The nurse looked after the baby ./ The baby was looked after by the nurse . / We must make up for the lessons we missed. / The lessons we missed must be made up for .

　　○7 下列情况不能用被动语态：

　　A. 不及物动词： The accident happened on a busy road yesterday .

　　B. 连系动词： The girl looks like her sister .

　　C. 宾语为反身代词：He always dresses himself neatly .

　　D. 宾语为相互代词：The students often help each other .

　　E. 同源宾语：At that time, they lived a happy life .

　　F. 表示状态的及物动词：I have a new car. / The book cost me 30 yuan .