aim,purpose,goal 有什么区别这三个词有什么区别,详细说说.

仔细耐心看完,绝对就明白了.
aim:[ eim ]
n.目标,对准
v.对准目标,打算
词形变化:
动词过去式:aimed 过去分词:aimed 现在分词:aiming 第三人称单数:aims
例句与用法:
1.He aims to be a successful writer.
他的目标是成为一个成功的作家.
2.What is your aim in life?
你的生活目标是什么?
3.My remarks were not aimed at you.
我的话不是针对你的.
4.I aimed at the target but hit the wall.
我瞄准了目标射击,但却打在了墙上.
名词aim:
1.an anticipated outcome that is intended or that guides your planned actions
同义词：purpose,intent,intention,design
2.the goal intended to be attained (and which is believed to be attainable)
同义词：object,objective,target
3.the action of directing something at an object
4.the direction or path along which something moves or along which it lies
同义词：bearing,heading
动词aim:
1.aim or direct at; as of blows,weapons,or objects such as photographic equipment
同义词：take,train,take aim,direct
2.propose or intend
同义词：purpose,purport,propose
3.move into a desired direction of discourse
同义词：drive,get
4.specifically design a product,event,or activity for a certain public
同义词：calculate,direct
5.intend (something) to move towards a certain goal
同义词：target,place,direct,point
6.direct (a remark) toward an intended goal
7.have an ambitious plan or a lofty goal
同义词：draw a bead on,aspire,shoot for
goal:[ gəul ]
n.目标,终点
n.球门;得分
例句与用法:
1.You'd better set a goal before you start the drill.
练习开始前,你最好设定一个目标.
2.He has achieved his goal.
他已经实现了他的目标.
3.That last goal was a beauty.
最后进去的那个球真漂亮.
4.If we lose sight of the goal,we cease to be *s.
如果忘记了这个目标,我们就不再是*员了.
5.It's in we've got a goal!
球进了－－我们射门得分!
6.He kicked a penalty goal in the football match.
在这场足球赛中,他主罚,踢进了一个球.
7.That's the twentieth goal he's kicked this season.
这是他本赛季踢进的第二十个球.
名词goal:
1.the state of affairs that a plan is intended to achieve and that (when achieved) terminates behavior intended to achieve it
同义词：end
2.a successful attempt at scoring
3.game equipment consisting of the place toward which players of a game try to advance a ball or puck in order to score points
4.the place designated as the end (as of a race or journey)
同义词：finish,destination
purpose:[ 'pə:pəs ]
n.目的,意图
词形变化:
动词过去式:purposed 过去分词:purposed 现在分词:purposing 第三人称单数:purposes
例句与用法:
1.Did you come to London for the purpose of seeing your family,or for business purposes?
你到伦敦来的目的是为了要看望家人还是为了公事?
2.She seems to do these things on purpose.
她似乎是有意地做这些事.
3.He purposed to visit South America.
他计划去南美.
名词purpose:
1.an anticipated outcome that is intended or that guides your planned actions
同义词：intent,intention,aim,design
2.what something is used for
同义词：function,role,use
3.the quality of being determined to do or achieve something
同义词：determination
动词purpose:
1.propose or intend
同义词：aim,purport,propose
2.reach a decision
同义词：resolve