指出下列句子中词类活用的情况并解释。
1.今行而无信,则秦未可亲也
_______________,义为_______________
2.乃遂收盛樊於期之首,函封之
_______________,义为_______________
3.顷之未发,太子迟之
_______________,义为_______________
4.皆白衣冠以送之
_______________,义为_______________
5.又前而为歌曰
_______________,义为_______________
6.乃朝服,设九宾
_______________,义为_______________
7.群臣怪之
_______________,义为_______________
8.箕踞以骂曰
_______________,义为_______________
9.使使以闻大王
_______________,义为_______________