1. 不及物的动词或者词组无被动语态，常见有如下词汇：appear, die disappear, end (vi. 结束), fail, happen, last, lie, remain, sit, spread, stand, break out, come true, fall asleep, keep silence, lose heart, take place等等。同时，周童瑜提请您特别注意：不能用于被动语态的及物动词或动词短语：fit, have, wish, cost, watch,agree with, arrive at / in, shake hands with, succeed in, suffer from, happen to, take part in, walk into, belong to happen, belong to, suit, fit(适合), have, let, join, fall, last（延长）,cost（花费）
3. 感官动词或使役动词使用省略to的动词不定式，主动语态中不带to ，但变为被动语态时，须加上to 如：make/see sb do sth→sb+ be +made/seen to do sth等等，周童瑜提醒您记忆其他此类词汇：feel, hear, help, listen to, look at, observe, notice, watch
4. 如果是接双宾语的动词改为被动语态时，直接宾语(物)作主语，那么动词后要用介词，这个介词是由与其搭配的动词决定。如：He bought me a book.→A book was bought for me.
5. 一些动词短语用于被动语态时，动词短语应当看作一个整体，而不能丢掉其中的介词或副词。如：Zhou tongyu listens to the radio every day. →The radio is listened to by Zhou tongyu every day.
6 let 的用法：1）当let后只有一个单音节动词，变被动语态时，可用不带to 的不定式。They let the thief go→ The thief was let go. 2） 若let 后宾补较长时，let通常不用被动语态，而用allow或permit代替。The teacher let me go home to have dinner. →I was allowed / permitted to go home to have dinner.
8 主动语态中的宾语是从句，变成被动时使用形式替代词it.如：We know that Britain is an island country.——It's known that Britain is an island country.
9 be+done 可以是被动语态，也可以是系表结构形式。被动语态中，done可以带by短语，而系表结构中done相当于adj. 不带 by短语。如：The question is settled. (系表结构) Such questions are settled by us. (被动语态)。许多verbs(broken, interested, shut, worried), 既可以用做adj.也可以在被动语态结构中做过去分词。句中如果有by，通常是被动语态。如： The glass was broken by Jack. (表动作) The glass is broken. (表状态)。
【再传】：It is said that…据说It is reported that… 据报道 It is believed that…大家相信It is hoped that…大家希望 It is well known that… 众所周知 It is thought that…大家认为 It is suggested that…据建议 It is taken granted that…被视为当然It has been decided that… 大家决定 It must be remember that…务必记住的是It is generally accepted that…人们公认的是It is universally known that…全球共知的是
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主动语态就像是“男人”，被动语态则像是“女人”，研究男人让人头疼，因为男人“要哭的时候都不哭”，城府太深。女人虽然“三十六计”，但女人却是伟大的情绪动物，所以研究女人，研究被动语态真的不算太难。“察言观色”，将“被动语态”这个女人研究地十分透彻。请看“被动语态”女人的招数：