1. 被动语态的构成 be + vt pp, 其中助动词be体现时态的变化,动词的过去分词表示被动。
2. 不能用于被动语态的及物动词:hold (容纳), become (成为), last (持续), fit (合适), own (拥有), cost (花费), wish (希望,祝愿), meet (遇见)
3. 不能用于被动语态的及物动词短语:agree with, arrive at/ in, shake hands with, succeed in, suffer from, happen to, take part in, belong to, consist of 等。
4. 不及物动词无被动语态,容易弄错的有:appear, die, disappear, end, fail, fall, happen, lie, remain, sit等。