According to the new law, people found putting up “harmful” advertisements on the streets will

1、问题解答：这是动词的过去分词作后置定语，可以改为定语从句：According to the new law, people (who is) found putting up “harmful” advertisements on the streets will be punished strictly.

2、成分分析：According to the new law, 状语；people主语；who is found putting up “harmful” advertisements on the streets 定语从句；

will be punished strictly谓语。

3、句子翻译：根据新规，那些被发现在街道上张贴“有害”广告的人将会受到严惩。