Odie的英语课 975 Grammar | Passive sentences 2

被动句格式be + 动词过去分词I was told by Sarah [被动，一般过去时]Your zodiac sign is decided by your birth year. [被动，一般现在时]被动句和（相同句子的）主动句的时态一样，比如都是一般现在时、一般过去时、现在进行时、现在完成时，等等。Edward Barnes designed these houses in the 1880s. [主动]爱德华·巴恩斯在19世纪80年代设计了这些房子。* 这句话的重点是主语Edward Barnes爱德华·巴恩斯，即谁设计的房子。These houses were designed in the 1880s. [被动，没有作用者]这些房子是在19世纪80年代设计的。These houses were designed in the 1880s by Edward Barnes. [被动 + by + 作用者]这些房子是由爱德华·巴恩斯于19世纪80年代设计的。* 这两句话的重点是主语these houses，即动作所作用的人或物。press 动词，按，压，推，挤（press the button 按这个按钮），榨（果汁），挤名词，出版社publish 动词，出版，发表，公布Cambridge University Press published this book. [主动]剑桥大学出版社出版了这本书。This book was published by Cambridge University Press. [被动]这本书由剑桥大学出版社出版。