rarely是副词,意思是“很少地”“极少地”,在句中用作状语修饰谓语动词,起强调作用,用于句首时须采用倒装语序。

She rarely went anywhere except to her office.她除了去办公室以外,很少去别的地方。
Rarely did I meet Mr. Eldon.我很少遇到埃尔登先生。
I rarely make spelling mistakes in my composition.我很少在作文中犯拼写错误。
He rarely, if ever, goes out.他很少外出。

［同义词］   ever, hardly, not often, seldom
［反义词］   always, continually, frequently, often