Knock on 和Knock at 有什么区别 Knock on 和Knock at 有什么区别
Knock on \u548cKnock at \u6709\u4ec0\u4e48\u533a\u522bKnock on \u548cKnock at \u533a\u522b\uff1a
\u4e00\u3001\u542b\u4e49\u4e0d\u540c
1\u3001Knock on
\u91ca\u4e49\uff1a\u6572\u51fb\uff0c\u7ed3\u675f\u3002
\u4f8b\u53e5\uff1aPlease do not enter before knocking on the door.
\u8fdb\u6765\u524d\u8bf7\u5148\u6572\u95e8\u3002
2\u3001Knock on
\u91ca\u4e49\uff1a\u6572\uff0c\u649e
\u4f8b\u53e5\uff1aDid you hear the knocks at the door?
\u4f60\u542c\u5230\u6572\u95e8\u58f0\u4e86\u5417?
\u4e8c\u3001\u7528\u6cd5\u4e0d\u540c
1\u3001Knock on
\u7528\u6cd5\uff1a\u540e\u9762\u53ef\u4ee5\u8ddf\u5176\u4ed6\u7269\u54c1\u3002
2\u3001knock at
\u7528\u6cd5\uff1a\u53ea\u7528\u4e8e\u8868\u793a\u6572\u95e8\u3002
\u4e09\u3001knock at\u672c\u8eab\u5c31\u662f\u4e2a\u56fa\u5b9a\u7684\u8bcd\u7ec4\u5f62\u5f0f,\u5728\u8868\u793a\u4e3a\u6572\u95e8\u6216\u8005\u5176\u5b83\u90fd\u53ef\u4ee5\u7528\u3002
\u800cknock\u3000on\u5e76\u4e0d\u662f\u8bcd\u7ec4\u5f62\u5f0f,on\u53ea\u662f\u4fee\u9970\u540e\u9762\u8ddf\u7684\u540d\u8bcd\u7684\u4ecb\u8bcd\u7f62\u4e86\u3002
\u6269\u5c55\u8d44\u6599\uff1a
Knock\u91ca\u4e49\uff1a
\u4e00\u3001\u4e0d\u53ca\u7269\u52a8\u8bcd vi.
1.\u76f8\u649e,\u78b0\u51fb
\u4f8b\u53e5\uff1aHis legs knocked against the chair.
\u4ed6\u7684\u4e24\u6761\u817f\u649e\u5230\u4e86\u6905\u5b50\u3002
2.\u6572,\u51fb,\u6253
\u4f8b\u53e5\uff1aHe knocked at the door and entered.
\u4ed6\u6572\u4e86\u6572\u95e8\u4fbf\u8d70\u8fdb\u53bb\u4e86\u3002
\u4e8c\u3001\u53ca\u7269\u52a8\u8bcdvt.
1\u3001\u6572,\u51fb,\u6253
The falling bottle knocked him on the head.
\u8dcc\u843d\u7684\u74f6\u5b50\u7838\u5728\u4ed6\u7684\u5934\u4e0a\u3002
2\u3001\u51fb(\u649e)\u6210...
The blow knocked her senseless.
\u90a3\u4e00\u51fb\u628a\u5979\u6253\u660f\u4e86\u3002
\u4e09\u3001\u540d\u8bcd n.
1\u3001\u6572;\u51fb,\u6253
When I fell I got a terrible knock on the head.
\u6211\u6454\u5012\u65f6\u5934\u649e\u5f97\u5f88\u5389\u5bb3\u3002
2\u3001\u4e0d\u5e78;\u632b\u6298;\u8270\u82e6
We have to take certain knocks in life.
\u6211\u4eec\u5728\u4e00\u751f\u4e2d\u603b\u5f97\u906d\u53d7\u67d0\u4e9b\u632b\u6298\u3002
Knock on \u548cKnock at \u533a\u522b\uff1a
\u4e00\u3001\u542b\u4e49\u4e0d\u540c
1\u3001Knock on
\u91ca\u4e49\uff1a\u6572\u51fb\uff0c\u7ed3\u675f\u3002
\u4f8b\u53e5\uff1aPlease do not enter before knocking on the door.
\u8fdb\u6765\u524d\u8bf7\u5148\u6572\u95e8\u3002
2\u3001Knock on
\u91ca\u4e49\uff1a\u6572\uff0c\u649e
\u4f8b\u53e5\uff1aDid you hear the knocks at the door?
\u4f60\u542c\u5230\u6572\u95e8\u58f0\u4e86\u5417?
\u4e8c\u3001\u7528\u6cd5\u4e0d\u540c
1\u3001Knock on
\u7528\u6cd5\uff1a\u540e\u9762\u53ef\u4ee5\u8ddf\u5176\u4ed6\u7269\u54c1\u3002
2\u3001knock at
\u7528\u6cd5\uff1a\u53ea\u7528\u4e8e\u8868\u793a\u6572\u95e8\u3002
\u4e09\u3001knock at\u672c\u8eab\u5c31\u662f\u4e2a\u56fa\u5b9a\u7684\u8bcd\u7ec4\u5f62\u5f0f,\u5728\u8868\u793a\u4e3a\u6572\u95e8\u6216\u8005\u5176\u5b83\u90fd\u53ef\u4ee5\u7528\u3002
\u800cknock\u3000on\u5e76\u4e0d\u662f\u8bcd\u7ec4\u5f62\u5f0f,on\u53ea\u662f\u4fee\u9970\u540e\u9762\u8ddf\u7684\u540d\u8bcd\u7684\u4ecb\u8bcd\u7f62\u4e86\u3002
\u6269\u5c55\u8d44\u6599\uff1a
Knock\u91ca\u4e49\uff1a
\u4e00\u3001\u4e0d\u53ca\u7269\u52a8\u8bcd vi.
1.\u76f8\u649e,\u78b0\u51fb
\u4f8b\u53e5\uff1aHis legs knocked against the chair.
\u4ed6\u7684\u4e24\u6761\u817f\u649e\u5230\u4e86\u6905\u5b50\u3002
2.\u6572,\u51fb,\u6253
\u4f8b\u53e5\uff1aHe knocked at the door and entered.
\u4ed6\u6572\u4e86\u6572\u95e8\u4fbf\u8d70\u8fdb\u53bb\u4e86\u3002
\u4e8c\u3001\u53ca\u7269\u52a8\u8bcdvt.
1\u3001\u6572,\u51fb,\u6253
The falling bottle knocked him on the head.
\u8dcc\u843d\u7684\u74f6\u5b50\u7838\u5728\u4ed6\u7684\u5934\u4e0a\u3002
2\u3001\u51fb(\u649e)\u6210...
The blow knocked her senseless.
\u90a3\u4e00\u51fb\u628a\u5979\u6253\u660f\u4e86\u3002
\u4e09\u3001\u540d\u8bcd n.
1\u3001\u6572;\u51fb,\u6253
When I fell I got a terrible knock on the head.
\u6211\u6454\u5012\u65f6\u5934\u649e\u5f97\u5f88\u5389\u5bb3\u3002
2\u3001\u4e0d\u5e78;\u632b\u6298;\u8270\u82e6
We have to take certain knocks in life.
\u6211\u4eec\u5728\u4e00\u751f\u4e2d\u603b\u5f97\u906d\u53d7\u67d0\u4e9b\u632b\u6298\u3002
Knock on 强调 “在大面积处用力敲击”，Knock at 强调“在一点上轻轻地叩击”，二者可互换，不过前者属于非正式用法。
【例如】
Hearing the heavy knock on the door, he sprang out of bed. 他听到了“砰——”的敲门声便突然从床上跳了出来
There was an insistent knock on my door. 我听到一阵急促的敲门声.
Knock at my window at eight o'clock and I'll be ready. 八点钟敲我的窗户，我会准备好的。
There was a light knock at the door. 有人在轻轻地敲门。
另外，knock on 还可以表示 “告一段落”，如：
Let's knock on for another half an hour. 我们再干半小时 吧.
Knock on:
敲（门、窗等）
例句与用法:
1.He accidentally knocked on (the pass from Jones).
他非故意犯规,用手向前击了（从琼斯传来的）球.
2.Jim sat up when he heard the knock on his bedroom door.
吉姆听到敲寝室门的声音时便坐了起来.
3.Please do not enter before knocking on the door.
进来前请先敲门.
Knock at:
vt.敲
例句与用法:
1.There was a furious knock at the door.
有人在猛烈地敲门.
2.Did I hear a knock at the door?
是有人敲门吗?
3.Did you hear the knocks at the door?
你听到敲门声了吗?
没什么大区别
都有敲打的意思 ，KNOCK ON 是动词语境，有使增加；不停地工作的意思，而
Knock at只有单独的名词语境，打， 捶， 敲；挝，大概会是这样。
扩展阅读：knock off ones feet ... pick up sticks ... knock sth on ... knock you down ... knock sb down ... knock the door ... delay no more ... knockknocktrickortreat ... ask sb for sth ...
