1.communicate的基本意思是“传达”“表达”,指把信息、知识、性能等传达给有关各方使用，引申可表示“交际”“交流”“交通”或“相连”“相通”。
2.communicate可用作不及物动词,也可用作及物动词，用作及物动词时可接名词或代词作宾语。
3.communicate接介词to可以表示“传送给…”,接with可以表示“与…联系”或“与…相通”。

communicate to(v.+prep.)
▲communicate sth to sb/sth
1.传达给…; 向…表达 make sb know
He asked me to communicate his wishes to you.他让我向你转达他对你的祝愿。
You have a duty as a scientist to communicate your discovery to the world.作为一位科学家,你有责任把你的发现公布于众。
He communicates his despair to me.他向我表达他的绝望心情。
2.传染,传送 sent sth to sb
He communicated the disease to the rest of his family.他把病传给了家里其他人。
The stove communicated its heat to the room.炉火的热散发到了屋里。

communicate with(v.+prep.)
▲communicate with sb/sth
1.与…联系,与…交往 speak to; send a message to
It's necessary that young and old people should communicate more with each other.年轻人和老年人有必要保持更多的联系。
I immediately communicated with the police.我立即与警察联系。
I communicate with him regularly by letter.我与他定期通信。
We can communicate with people in most parts of the world by telephone.我们可以用电话与世界上大多数地区的人通讯。
2.与…相通 be connected with
Her bedroom communicates with the bathroom.她的卧室和浴室相通。
My garden communicates with his by means of a gate.我的花园与他的花园有个门相通。
The dining-room communicates with the kitchen.饭厅与厨房相通。
The lake communicates with the sea by means of a canal.这个湖通过运河和大海相连。

用作不及物动词
▲S+～(+A)
She and I don't communicate any more.我和她不再通信了。
Galen and I have communicated.盖伦和我已经联系上了。
用作及物动词
▲S+～+n./pron.
She reluctantly communicated the facts.她不愿把真实情况讲出来。
You don't communicate your ideas well in this essay.你在这篇短文中没有很好地表达自己的想法。
I don't think the teacher communicates his ideas clearly.我认为老师没有把自己的想法表达清楚。

communicate, impart
这组词都可表示“传达,传送”。其区别是:communicate强调传达的结果; impart则强调传达的过程。