get to , reach ，arrive 三者区别

get to
到达, 抵达
Have we got to the zoo yet?
我们到动物园了吗?
开始
Now let's get to the real work.
现在我们来办正事吧。
抓住; 接触, 和…取得联系
We must try to get to the essence of things.
我们必须想法抓住事物的本质。
弄清…底细
We must get to the bottom of the matter.
我们必须弄清这件事的内情。

reach
到达
They reached Paris by plane on March 8.
他们于三月八日乘坐飞机到达巴黎。
联络
The news reached every part of the world.
消息传到世界各地。
vt. & vi.
伸出手臂; 延伸
I can't reach so high.
我够不到这么高。
n.
伸手可及的距离
One would need a long reach to be able to touch the ceiling.
必须把手伸得很长才能够到天花板。
(江河的)河段
We often divide a river into three parts, that is the upper, middle and lower reaches.
我们经常把一条河分成三部分:上游、中游和下游。

arrive
vi.
到达, 来
He arrived punctually at four o'clock.
他准时在四点钟到达。
发生
Jenny is a young writer who has no