单词详解 

1. n.

短促的敲打（声） ( the sound of knocking (as on a door or in an engine or bearing) )

When I heard the knock, I stopped writing. 当听到敲门声，我就停下来不写了。

2. v.

A. 敲 ，击，打 (deliver a sharp blow or push)

Please remember to knock before entering. 记得进来前先敲门。

B. 批评，数落，非难 (find fault with; express criticism of; point out real or perceived flaws)

The newspapers are too fond of knocking that famous film actor.

报纸专爱挖苦那个著名的电影演员。

相关词组

1. knock against 撞击

In the darkness I knocked against something. 在黑暗中我撞上了一样东西。

2. knock at / on the door 敲门

She heard someone knock at the door. 她听见有人敲门了。

3. knock down 撞倒，击倒，降价

The shopkeeper would not knock down the price. 店主就是不原意降价。

4. knock into   撞上，撞倒，钉进，灌输

Who can help me knock it into the wood? 谁能帮助我把它砸入这块木头里吗？

5. knock off  敲掉，打掉，削价，减价，停止工作，下班　

What time do they knock off for supper? 他们什么时候中断工作吃晚饭？　

6. knock out of 从……中敲出来，淘汰

Their team gets knock out of the cup in the first round.

他们队在锦标赛的第一轮比赛中就被淘汰了。　　　

7. knock over 弄翻，撞翻，打倒，使心烦意乱，使不知所措，完成，干完

The doctors tried their best to knock over difficulties. 医生们尽最大努力克服困难。

相关单词

过去式：knocked

过去分词：knocked

现在分词：knocking

第三人称单数：knocks

相关链接

  词义辨析：pat, tap, knock

pat, tap, knock

这些动词均有“敲，击”之意。

knock: 指用拳头或其它器械猛敲或猛打；也指用手轻敲某物。

tap: 多指慢慢地连续地轻击或轻拍。

pat: 指用手轻拍以示同情、赞同或爱抚。

词语详解

1. knock: 指用拳头或其它器械猛敲或猛打；也指用手轻敲某物。

If you pay a visit to a Chinese family, you should knock at the door first.

如果你拜访一个中国家庭，你就应该先敲门。

2. tap : 多指慢慢地连续地轻击或轻拍。

She never taps for secrets. 她从来不打听秘密。

3. pat: 指用手轻拍以示同情、赞同或爱抚。

She patted him on the shoulder gently. 她轻轻的拍了拍他的肩膀