know/nəʊ/ (knew/njuː/, known/nəʊn/ )

vt

1. 不用进行式 知道，明白

• I want to know what happened. 我想知道发生了什么。

• He tidied up the house knowing that his wife was coming back. 知道妻子要回来，他把房子收拾了一下。

2. 掌握；习知；认识到

• He knows how to fix a car. 他会修理汽车。

• He knows some Spanish. 他会一点西班牙语。

3. 经历，体验

• He is too young to know grief and agony. 他太年轻了，没有经历过悲伤与痛苦。

• She learned that they had known both grief and happiness. 她得知悲伤和欢乐的滋味他们都尝过。

4. 确知，确信

• I know my key is somewhere in this drawer. 我确信我的钥匙在这个抽屉里。

• I know for certain(或for sure) that he hasn't paid for the car. 我确知他的车还没付账呢。

5. 熟悉，对(人、地方等)了如指掌

• I know him well. 我对他了如指掌。

• The old man has been here for several decades and he knows the area inside out. 那位老人在这里住了几十年，他熟悉这里的每一寸土地。

6. 辨别；理解；认出

• know right from wrong 辨明是非

• I could hardly know an old friend of mine since she looked very different after years. 我差点认不出一个老朋友，因为多年之后她的变化太大了。

vi 不用进行式 知道，懂得，了解，明白

• As we all know, she is a good teacher. 我们都知道，她是个好老师。

词组all one knows 竭尽全力的

• He tried all he knew to control his temper. 他尽力控制自己的脾气。

• Everyone should try all he knows to restrain his anger. 每个人都要尽力控制自己的火气。

before one knows where one is 还未弄清怎么回事就…，转眼间 don't you know [用作插入语] 你也知道不是吗 for all sb. knows 见all³ I knew it. 我早就知道(事情会这样) I know (what) 我有主意了 know a man by his company 从其交友判断其为人 know all the answers 见answer¹ know apart 辨别，区别

• The two girls are twins and so much alike that only their mother knows them apart. 这两个女孩是双胞胎，长得极为相似，只有她们的母亲才能把她俩区别开来。

know a thing or two 见thing know best 对…最有权威

• “I want to get up.”“But the doctor said you were to stay in bed; and surely he knows best.” “我要起床。”“可是医生说你应该卧床休息，当然是医生最了解情况。”

know better

1. 有头脑(而不至于…)，明事理

• You should know better than to trouble others. 你应当明智点，不要去麻烦别人。

2. 更了解，更知道

know by 凭…辨认出；依据…而知道

• I'd know you anywhere by your laugh. 无论走到哪里，我都能凭你的笑声认出你来。

know of 知道，听说

• I know of this but I don't know much. 我只听说过这件事，但知道的不多。

know one's own mind 见mind know one's stuff 见stuff¹ know sth. backwards 见backwards know sb.(或sth.) like the back (或palm) of one's hand 对…了如指掌

• Mr. Johnson obviously knows the street like the back of his hand. 显然约翰逊先生非常熟悉这条街。

know what's what 熟悉情况，懂行 let know 告诉，通知

• At least let us know where to go before we leave. 走之前至少让我们知道去哪儿。

not know sb. from Adam 见Adam not want to know 不想知道，不感兴趣 not that I know of 据我所知不是如此

• “Has anyone called us while we've been out?” “Not that I know of. ”“我们外出时有人打电话找我们吗？”“据我所知没有。”

you never know 很难说