1.jump用作及物动词时,意为“使…跳跃,使…惊起”,着重从地面、其他表面或地点跳起,可指往高处跳,也可指往低处跳,还可指跳过什么; 强调的是猛然跳起或跳跃的动作,其后接名词、代词或反身代词作宾语,可用于被动结构。
2.jump也可用作不及物动词,意为“跳,跃”,通常不与表示延续的时间状语连用,也不用于进行体,除非表示的是重复的动作。
3.jump还可以作“暴涨”解,一般指数量突然迅猛地增长,用作不及物动词。

jump at(v.+prep.)
急于接受 accept an offer, invitation, opportunity, etc. eagerly and without hesitation
▲jump at sth
When someone suggested a bath in the cool stream, we all jumped at the idea.有人建议到清凉的溪水里去洗个澡,大家都欣然接受了这个主意。
To my surprise, he jumped at the offer, though it did not seem very attractive to me.使我惊奇的是,他很乐意接受这个提议,尽管在我看来并不十分可取。
Many person would have jumped at such an opportunity as this.许多人都会迫不及待地抓住这样的机会。
Everyone was surprised when Jim didn't jump at his father's offer of a partnership.对于吉姆不急于接受他父亲让他合伙干事的提议,大家都感到惊奇。
She jumped at the chance to meet the famous author.她欣然接受了去会见那位名作家的机会。

jump into(v.+prep.)
▲jump into sth
1.跳入 enter sth with a springing movement
The man jumped into a taxi.那个人跳上一辆出租车。
He jumped into the water to bring back the child.他跳入水中去救那个孩子。
2.急于做某事; 急速行动 be eager to do sth; act urgently
They jumped into the discussion right away.他们马上踊跃投入了讨论。

jump off(v.+adv.)
▲jump off
1.跳下 leave a place with a springing movement
He jumped off before the train had not quite stopped moving.火车还没有完全停稳,他就跳了下来。
2.开始行动; 发起进攻 start; advance
〔说明〕 jump off作此解时通常不用于进行体。
The bugle sounded and the assault jumped off.军号一响,突袭便开始了。
The marchers jumped off at the crack of dawn.行军队伍在破晓时出发了。
The project jumped off to a good start.工程很顺利地开始了。

jump on(v.+prep.)
1.跳上… stand on top of sth quickly
▲jump on sth
The boy jumped on a moving truck.那男孩跳上一辆正在行驶的卡车。
It was necessary to jump on the ice coated mounds of brush several times before they could flush.你得在这些被冰覆盖的树丛跳上好几下,才能把鸟群惊飞。
2.尖锐而激动地批评,斥责 criticize sth/sb sharply and excitedly
▲jump on sb/sth
The teacher jumped on the inattentive pupil in class.老师责备那个在课堂上不注意听讲的学生。
I'm afraid the teacher will jump on me if I am late.如果我迟到了,恐怕老师会骂我。
Her driving instructor jumped on every little mistake, which made her very nervous.她的驾驶教练对她的每个细小的错误都严加指责,这使她非常紧张。
◇ 用于be ～ed结构
Alfred was jumped on by his father for coming back late.阿尔弗莱德由于回家晚而被父亲狠狠地说了一顿。
▲jump on sb for sth/v-ing
If the boss is in one of his bad moods, he'll jump on you for the slightest thing.碰上老板情绪不好的时候,他会为了一丁点小事对你大骂一通。
The teacher jumped on him for handing in untidy homework.由于作业潦草,老师严厉地批评了他。
3.袭击 make a sudden attack on
▲jump on sb
The dog jumped on the stranger.狗突然向那个陌生人猛扑过去。

jump out of(v.+adv.+prep.)
突然离开; 跳离 leave a place suddenly, with a springing movement
〔说明〕 jump out of通常不用于进行体。
▲jump out of sth
He jumped out of bed as soon as he was called.一听到有人叫他,他立即跳下床去。

jump over(v.+prep.)
(使)跳过 (cause to) pass over sth by jumping
▲jump over sth
Can you jump over the fence?你能跳过那个栅栏吗?
The wall is high; you can't jump over it.这堵墙太高,你跳不过去。
The stream is so wide that you couldn't jump over it.这条小溪太宽,你可能跃不过去。
I often jump over a line or two in rapid reading.我快速阅读时常常跳越过一两行字。
▲jump oneself/sth over sth
The thief jumped himself over a fence and escaped.贼纵身跃过篱笆逃走了。
He jumped the horse over the fence.他纵马跃过栅栏。

jump to(v.+prep.)
猛增到 increase rapidly up to
〔说明〕 jump to通常不用于进行体。
▲jump to sth
The price of the color TV has jumped to five thousand yuan.彩电的价格已突升到5000元。
The membership of these associations jumped to two million.这些协会的会员人数猛增到两百万人。

jump to it
赶快; 快 be quick
Jump to it, men, we must get all the tents packed in an hour!快点,弟兄们,我们得在一个钟头之内把帐篷收起来。
You'll have to jump to it if you want to catch the train.如果你想赶上火车，就得快点。

jump together(v.+adv.)
与…一致〔相称〕 accord with
▲jump together
Great wits will jump together.智者所见略同。
His tastes and his means do not jump together.他的爱好与他的收入不相称。

jump up(v.+adv.)
〔说明〕 jump up通常不用于进行体。
▲jump up
1.突然站起 rise from one's seat suddenly
He jumped up out of his chair.突然,他从椅子上一跃而起。
She jumped up from her chair and left the room.她从椅子上跳起来,离开了房间。
2.大幅上涨 increase rapidly
All the stock prices jumped up in Tokyo last month.上月东京各种股票价格都大幅度上涨。

用作不及物动词
▲S+～(+A)
She jumped when she heard the news.她听到那消息时,跳了起来。
He waited until the last minute before jumping on the train.直到最后一分钟,他才跳上火车。
My heart jumped as I heard the news.听到这消息时,我的心咚咚直跳。
Last week, the price of food jumped.上星期,食品价格暴涨。
Gold prices on Western markets jumped.西方市场上的黄金价格暴涨。
The price of oil jumped sharply in 1973.石油的价格在1973年暴涨。
The number of students in universities has jumped.大学学生的数量已大幅度增加。
用作及物动词
▲S+～+n./pron.
The stream was so broad that nobody could jump it.小溪太宽了,没人能跳得过去。
He jumped quite a few chapters in the book.他把这本书的好几章都跳过没看。
She jumped the fourth grade in primary school.她跳过了小学四年级。
◇ 用于be ～ed结构
Birds were jumped by a stone and flew over the house.小鸟被一块石头惊起，掠过房子飞走了。
▲S+～+n./pron.+to-v
The man jumped the rail to run after a red car.那人跃过栏杆，去追一辆红车。
I always jump introduction to read books.我看书时常常略去绪论。

jump, bound, hop, leap, skip, spring
这组词都可以表示“跳”。其区别是:jump表示从地面或其他平面上跳起或跳下,也可指从一点跳过另一点,即垂直方向,是最普通用词。bound多用以表示“跳着往前运动”,即水平方向,强调跳动的连续性。例如:
A herd of antelope bound gracefully across the plain.一群羚羊优雅地跳过了平地。
leap则强调腾空跳起或跳至某地点,即从一点越过相当距离跳到另一点,暗示动作优美、轻捷,含有“连跑带跳”的意思。例如:
She leaped lightly to the opposite bank of the stream.她轻盈地跳到小溪的对岸去了。
spring指突然而迅速地从某处跳起,强调跳得轻、快或突然,给人一种弹性感。例如:
He sprang to his feet.他突然一跃而起。skip指轻快地跳,两脚相互交叉地跳。例如:
The children skipped down the street to the sweet shop.孩子们蹦蹦跳跳地上街买糖去了。
hop用于人时,指单足跳; 用于动物时,指所有的足一齐跳。例如:
The wounded soldier hopped across the street.受伤的士兵跳过了大街。

1.火车还没有完全停稳,他就跳了下来。
［误］  He jumped off from the train before it had quite stopped moving.
［正］  He jumped off the train before it had quite stopped moving.
［析］  说“跳离…”是jump off, off在这里是介词,其后接宾语,不需再接from。
2.听到这个消息,我们高兴得跳起来。
［误］  We jumped with joy at the news.
［正］  We jumped for joy at the news.
［析］  “高兴得跳起来”是jump for joy, for在这里表示原因,不可换为with。

1.jump作名词解是“跳,跃”的意思,可指一种抽象的行为,也可指具体的一次动作,是可数名词,其前可加不定冠词或数量词修饰。
2.jump引申可作“猛长,激增”解,一般指物品的数额、价格或价值在一个较短的时间内相对于以前大幅度地提高,用作可数名词。

all of a jump
在心情紧张中; 心惊胆战地 in a state of being nervous
What's the matter with you—all of a jump!你怎么啦?——这么心神不安!

at a full jump
全速地,迅速地 at full speed
The irate animal made for us, coming at a full jump.那头发怒的动物以最快的速度向我们冲来。

at one jump
一下子,立即 at once
He came to the conclusion at one jump.他一下子就得出了结论。

be for the high jump
一定要受到处罚,一定要被责骂 sure to be punished or scolded
If you mess about with my computer again, you'll be for the high jump.如果你再来乱动我的计算机,就有你好看的。

from the jump
从一开始 from the beginning
I found the task difficult from the jump.一开始,我就发现这任务很艰巨。

get〔have〕 the jump on
抢在…之前行动,对…占优先地位 get an advantage by standing quicker than
While all our plans were still in the blueprint stage, our competitors got the jump on us by announcing their new model.我们的全部设计还在蓝图阶段,我们的对手已抢在我们之前预告了他们的新式样了。

on (the) jump
1.突然地; 匆忙地 suddenly and quickly
We heard them coming and coming on jump, too.我们听出,他们已经快到了——而且来势极猛。
2.坐立不安,神经紧张 be upset
That elderly gentleman was exceedingly on the jump, as nervous as a man well could be.那位老先生坐立不安,紧张得不得了。

The jump was a very difficult one.这种跳跃是个非常难的动作。
One jump and you'll be over the fence.跳一下，你就可以跃过栅栏。
He made 135 jumps in half a minute.他在半分钟内跳了135下。
The dog cleared the stream with one jump.这只狗一跃就跳过了小溪。
There were five jumps in the race.这项比赛要求跳五次。
There has been a jump in the price of food.食品价格暴涨。
In May there was a considerable jump in sales.5月，销售额猛涨许多。
Prices went up with a jump.物价猛涨。

［同义词］ v. bound, hop, leap, skip, spring