help的形容词和副词是什么？

help的形容词是helpful；副词是：helpfully；
helpful：adj、有用的;有益的;有帮助的;愿意帮忙的。
helpfully：adv、有益地；有用地。

She was very helpful when my mother was ill ─ I'll allow you that、

我母亲生病时她帮了很大的、忙——我同意你说的这一点。

He can be very helpful, but only when it suits him、

有时候他非常肯帮忙，不过那得他觉得合适。

The receptionist was less than helpful、

那接待员一点忙都不帮。

The staff will helpfully attend to your needs

工作人员会帮忙满足您的需求。

He gave his name and then helpfully spelt it

他说出自己的名字，然后又热心地将它拼了出来。