1.pat的意思是“轻拍”,即以爱抚的态度轻轻地触摸以表示友善,还可指通过拍打等手段使某物形成一定的形状,即“拍成,拍至”。
2.pat多用作及物动词,后接名词或代词作宾语。有时还可接由“adj.”充当补足语的复合宾语。
3.pat的过去式和过去分词均为patted。

pat down(v.+adv.)
轻轻地拍平 make (sth) lie flat by hitting it gently
▲pat sth⇔down
She patted down unruly wisps of hair.她用手把翘起的头发轻轻拍平。
The cook patted down some lumps in the pastry.厨师在馅饼上轻轻地拍进几块糖。
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pat on(v.+prep.)
轻拍 touch (usually sb or an animal) lightly and quickly on (usually a part of the body)
▲pat sb/sth on sth
He patted the boy on his head.他轻轻地拍了拍这个男孩的头。
It's safe to pat the dog on its back but not on its nose.拍狗的脊背可以,但可别拍它的鼻子。
◇ 用于be ～ed结构
Most children dislike being patted on the head.大部分儿童不喜欢别人拍自己的头。
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pat on the back(v.+prep.+n.)
鼓励或赞扬… show pride in the ability or action of; encourage or praise sb or oneself
▲pat sb/oneself on the back
When he won the first place in the high jump, everyone patted him on the back and congratulated him.他获得跳高第一名时,大家向他表示赞扬和祝贺。
All the members of the team gathered round him, patting him on the back.所有队员都围在他的四周对他表示称赞。
Her performance wasn't so wonderful— I don't know why she has to pat herself on the back.她的演出并不十分完美——我不懂她为何沾沾自喜。

用作及物动词
▲S+～+n./pron.
He patted my curly head.他轻拍我卷发的头。
The children wanted to pat the bunny.孩子们都想拍拍那只小兔子。
He patted the dog.他拍了拍狗。
He patted her cheeks.他轻轻拍打她的双颊。
His foot is patting the ground.他的一只脚轻轻地拍打着地。
Dr. Hansen leaned forward and patted Enid's hand comfortingly.汉森医生身子前倾,安慰地拍了拍伊尼德的手。
She patted a place next to her for me to sit down.她用手拍了拍旁边的地方叫我坐下。
She patted her hair to be sure that it was neat.她轻拍头发使之整齐。
用作宾补动词
▲S+～+n./pron.+adj.
He patted his face dry with a towel.他用手巾轻轻把脸拍干。

a pat on the back
鼓励,赞扬show pride in the ability or action of
She deserves a pat on the back for all the hard work she's done.她辛勤努力值得赞扬。

With a reassuring pat on her arm, he left.他鼓励地拍了拍她的手臂就离开了。
Could you hear the pat?你能听到轻轻的拍击声吗?
Give me a pat of butter.给我一块儿黄油。

pat用作形容词时,无比较等级。

用作定语
▲～+n.
 A pat tale aroused a big laugh.一个贴切适时的故事引起一阵大笑。
用作表语
▲S+be+～
Her answer was too pat.她的回答很恰当。
The ending of the story was too pat.故事的结尾巧得令人感到牵强。
▲S+be+～+to-v
His explanation was too pat to be convin-cing.他的解释像事先准备好的,不能令人信服。

pat还可用作副词,意为“立即”。例如:
The answer came pat.答案脱口而出。

［同义词］ n.  stroke