himself是代词。
Her brother shuthimselfup among books .
她的哥哥把自己埋在书堆里。
Wasn't he afraid to go there byhimself?
他不怕独自一人到那里去吗?
I would like to talk to the managerhimself.
我要和经理本人谈一谈。
He would destroyhimselfalong with the plane .
他将和飞机同归于尽。
It seems that he is not quitehimselftoday .
他今天好像不怎么舒服。
himself是物主代词,他自己。