Late
arriving, happening or done after the expected, arranged or usual time 晚到的，迟到的，迟来的
1. Im sorry Im late.
对不起，我迟到了。
2. Hurry up, or you will be late for work.
快点，否则你上班会迟到的。
3. Its very rare for him to be so late.
他很少迟到。
As an adverb, it means after the usual or expected time late用作副词，表示晚、迟的意思。
1. They arrived too late.
他们来得太晚了。
2. I will come back late tonight.
今晚我会晚点回来。
3. I stayed up too late last night.
昨晚我睡得很迟。
Early
As an adverb, it means before the usual or expected time 提早，提前
1. Could you come back home early this evening?
今天晚上你能早点回家吗?
2. I hope to get away early in the morning.
我希望一早就动身离开。
3. I consider it a good habit to get up early.
我认为早起是一个好习惯。
arriving, or done before the usual, expected or planned time 早的，早到的，提早的，提前的
1. Youre so early today!
你今天来得这么早啊!
2. Lets make an early start tomorrow.
我们明天早点开始吧。
3. Shes an early riser.
她习惯于早起。
【注意】
1. late和early是一组反义词，既可以用作形容词，也可以用作副词。
2. lately只能用作副词，意为最近。