caused by和be cause by的区别

无be cause by这种用法，应为be caused by.

caused by为过去分词（属于非谓语动词），不可用于句中做谓语，只可做后置定语。

be caused by为谓语动词，直接用于句中做谓语。

例：Lung cancer can be caused by **oking.

Lung cancer caused by **oking is a deadly disease.

caused by 与result from 有何如别?

(be) caused by（由）......引起的（被动语态）

result from 产生于…， 由…引起（主动语态）

caused by是短语么？介词by在这里是什么用法呀？顺便分析一下这句话的语法哦

用于被动语态的句子中,表示动作的执行者,意为“被;由”。

He was praised by the teacher.他受到了老师的表扬。

the book was written by Lu Xun.这本书是鲁迅写的。

表示方式、方法、手段等,后常接无冠词的名词或动名词,意为“通过;靠;用”。

Don't judge a person by appearances. 勿以貌取人。

He made a living by teaching.他以教书为生。

表示时间,意为“到……时(为止”或“不迟于……”。

He ought to be here by now.他现在应该在这儿了。

By the time he was ten, he had learnt about 1,000 English words.到十岁时,他已学了约一千个英语单词。

表示(增减)程度,尺寸数量等,意为“至……的程度”。

the bullet missed me by two inches.那子弹以两英寸之差未击中我。

the rope needs to be longer by two feet.这绳子需要再长两英尺。