（2）有些形容词变为副词， 可在字尾加ly， 也可以不加， 不过在字义上不同。
（A） easy “安适地”； easily “容易地”：
Stand easy！
Hes not easily satisfied.
（B） clear （ = completely “完全地”； clearly“显然地”；）
The bullet went clear through the door.
The thieves got clearly away.
（C） high “高”； highly “很；非常”；
The birds are flying high.
He was highly praised for his work.
（D） Slow 和 slowly当副词时同义， 但 slow比 slowly语气强。
I told the driver to go slow(er)。
Drive slowly round these bends in the road.
（E） hard “辛苦地”； hardly “几乎不”；
He works hard. (= He is a hard worker.)
He hardly does anything nowadays. (= He does very little nowadays.)
（F） just “刚才；仅”； justly “公正地”；
Ive just seen him.
He was justly punished.
（G） late “迟”； lately （= recently）“最近地”；
He went to bed late.
I havent seen Mr. Green lately.
（H） Pretty （= fairly， moderately）“十分，颇”； prettily （= in a pretty way， attractively）“漂亮地”；
The situation seems pretty hopeless.
She was prettily dressed.