1.rip用作名词的意思是“裂口”,转化为动词则表示“撕裂”“扯下”,指用力把一物沿一条线或接缝、接头等接合部位撕开或把某物从某处扯下来。
2.rip用作及物动词时,接名词、代词作宾语,偶尔也可接以形容词充当补足语的复合宾语。可用于被动结构。用作不及物动词时,常与副词across, apart, away, down, off, out, up或介词in, into, to等连用。
3.rip的过去式和过去分词均为ripped。

rip across(v.+adv.)
把…撕成两半 tear sth in two parts
▲rip sth ⇔across
Without a word he ripped the letter across.他一句话也不说,把信撕成两半。
He ripped the cheque across and sent it back.他把支票撕成两半退了回去。

rip apart(v.+adv.)
撕裂,弄乱 separate; divide sth with violence; cause disorder in sth as when searching
▲rip sth apart
A bomb ripped apart the train in which they had been travelling.一颗炸弹把他们乘坐的火车给炸断了。
The thieves ripped the house apart but could find nothing.窃贼把房子翻了个乱七八糟,但一无所获。
◇ 用于be ～ed结构
The electric wiring in the house will all need to be replaced, and I dare say the house will be ripped apart in the process.屋里的电线全部需要更换,我想在此过程中屋里将会被搞得凌乱不堪。
In this film, a family is ripped apart by a young mother's death.在这部影片中,年轻母亲的去世使全家人陷入极度的悲伤。

rip away(v.+adv.)
弄掉 remove sth with a violent movement
▲rip sth⇔away
He ripped away the faded hangings from a wall.他扯下墙上褪色的帘布。
Last night's high wind has ripped all the leaves away from the trees.昨夜的狂风把树上的叶子刮掉了。

rip down(v.+adv.)
扯下 remove; pull down; lower sth with a violent movement
▲rip sth  down
◇ 用于be ～ed结构
 The photographs had been ripped down by him.贴在高处的照片被他给撕下来了。

rip into(v.+prep.)
咬破; 攻击 enter or cut sth with a violent movement; attack sb/sth so as to destroy sth
▲rip into sth
See those lions ripping into the bodies of the animals that they've killed.看,那些狮子正在撕扯着被它们咬死的动物的尸体。
Bullets from his wing guns ripped into the fuselage of the bomber.从他的机翼里射出的子弹击穿了那架轰炸机的机身。

rip off(v.+adv.)
扯掉; 敲竹杠; 偷 remove sth violently from the top or front of sth; charge sb too much; steal
▲rip sth⇔off
They ripped off his medals.他们扯掉了他佩戴的奖章。
The local shopkeepers were all trying to rip off the tourists.当地的店主们都试图敲旅游者的竹杠。
Someone ripped off my bicycle.有人偷了我的自行车。
◇ 用于be ～ed结构
I'm firmly convinced that we in the northwest are truly be ripped off.我确信我们这些住在西北部的人要挨宰。
He tried to sell me some jewellery, but I thought it had been ripped off so I wouldn't buy it.他向我推销珠宝,可我想那是偷来的,所以不愿买。

rip out(v.+adv.)
弄掉 remove sth with a violent movement
▲rip sth ⇔out
The criminals have ripped the telephone wires out, so we can't call the police.罪犯扯掉了电话线,因此我们无法报警。
A single blow ripped out two of his opponent's teeth.他一拳就打掉了对手两颗牙齿。

rip up(v.+adv.)
撕坏 break or completely disregard (an agreement)
▲rip sth⇔up
She ripped the letter up angrily.她生气地撕毁了信。
The dog has ripped this morning's newspaper up again!那条狗又把今天早晨的报纸给撕坏了。
He can't be trusted, he's been known to rip up a contract as soon as it's signed.这个人靠不住,谁都知道他曾签过一份合同,墨迹未干,他就撕毁了。

用作不及物动词
▲S+～(+A)
Her blouse ripped.她的短上衣撕破了。
The canvas bag had ripped because I had not thought of reinforcing it.帆布袋裂开了,因为我没有想到把它加固一下。
They'll be dancing all night—we'd better just go to bed and let things rip!他们会跳通宵的,我们还是去睡吧,随他们玩去!
用作及物动词
▲S+～+n./pron.
The nail ripped a hole in her dress.她的套裙被钉子钩了一个洞。
She ripped the phone from his hand.她从他的手中夺过电话话筒。
◇ 用于be ～ed结构
The cover of the book was ripped.书的封面被撕掉了。
用作宾补动词
▲S+～+n./pron.+adj.
He ripped the envelope open.他把信封撕开。
◇ 用于be ～ed结构
The soldier was ripped free again.那个战士又重新获得了自由。

rip, tear
参见tear条。

rip还可用作名词,意思是“裂口,裂缝”。