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(5)want，require, need后面的动名词用主动形式表示被动含义。 Your coat needs washing.你的上衣需要洗洗了。 (6)be worth doing用主动形式表示被动含义。 This book is well worth reading.这本书很值得一读。 (7)在“be＋形容词＋ to do”中，不定式的逻辑宾语是句子的主语，用主动代被动。 This kind of water isn’t fit to drink.这种水不适合饮用。 The girl isn’t easy to get along with.这女孩不容易相处。 ★(1)be to blame(受谴责)，be to rent(出租)也用主动形式表被动。 (2)被动形式表示主动意义的几种情况。 be seated坐着； be hidden躲藏； be lost迷路； be drunk喝醉； be dressed穿着 (3)被动语态与系表结构的区别。 此处的系表结构指“连系动词＋用作表语的过去分词”结构，它与被动语态的形式完全一样。要注意它们的区别： 被动语态强调动作；系表结构表示主语的特点或状态。 The book was sold by a certain bookstore.(被动语态) The book is well sold.(系表结构) 4.使用被动语态时应注意的几个问题 (1)主动变为被动时双宾语的变化。 My friend gave me an interesting book on my birthday. An interesting book was given to me (by my friend) on my birthday. I was given an interesting book (by my friend) on my birthday. (2)主动变为被动时，宾语成主语；(作补语的)不定式前需加to(位置不变)。 The boss made him work all day long. He was made to work all day long (by the boss). (3)短语动词变被动语态时，勿要掉“尾巴”。 | 
