这里的useful for.... 是做了定语吗?

来源:百度知道 编辑:UC知道 时间:2024/07/07 00:53:52
The discovery of the antibiotic penicillin in 1928 has not produced antibiotics useful for the treatment of infectious diseases until 1940.

作动词produce的补语。produce antibiotics useful for:使抗生素用于……

对的,这里是过去分词做后置定语,修饰名词antibiotics,表示被动,被应用于。。。

是的,做的是antibiotics的定语。可以理解为The discovery of the antibiotic penicillin in 1928 has not produced antibiotics(that is) useful for the treatment of infectious diseases until 1940.省略了(that be )