强调做某事的明确目标或动机，突出“怀着某个目的去行动”的状态。
它是介词短语，因此后面不能接动词原形，需接名词、动名词（-ing形式）或名词性结构，在句中作目的状语，修饰谓语动词。
直接说明具体目的（名词需是抽象或具体的“目的对象”）。
例：
They organized the festival with the purpose of charity (为了慈善).
The new law was passed with the purpose of safety (为了安全).
最常见的用法，通过“动作”具体说明目的（动名词是“为了实现目的而做的事”）。
例：
She took the cooking class with the purpose of mastering Chinese cuisine (为了掌握中国菜).
The company invested in AI with the purpose of improving efficiency (为了提高效率).
He went to the gym with the purpose of losing weight (为了减肥).
可通过定语从句或形容词进一步限定目的的细节。
例：
We launched the campaign with the purpose of raising funds that will support homeless children (为了筹集支持流浪儿童的资金).
She started the blog with the purpose of sharing stories that inspire others (为了分享激励他人的故事).
with the main purpose of：以……为主要目的
例：The app was developed with the main purpose of helping users learn languages (主要目的是帮助用户学语言).
with the sole purpose of：以……为唯一目的
例：He did the job with the sole purpose of earning money (唯一目的是赚钱).
with the primary purpose of：以……为首要目的
例：The workshop was held with the primary purpose of training new employees (首要目的是培训新员工).
避免错误：不能接动词原形！
❌ 错误：I came here with the purpose of see you.
✅ 正确：I came here with the purpose of seeing you.（我来这儿是为了见你。）
正式性：属于正式用语，常用于书面语（论文、报告、官方文件），口语中更常用“to/in order to”（如：She took the class to improve English）。
with the purpose of vs for the purpose of：
两者含义几乎一致，可互换，但for更强调“为了达成某个目的”（直接指向结果），with更强调“带着目的去行动”（强调状态）。
例：
For the purpose of this study, we defined success as...（为了这项研究，我们将成功定义为……）
He went to the library with the purpose of borrowing books.（他去图书馆是为了借书。）
"with the purpose of" 是表达“目的”的正式短语，核心是用名词/动名词说明“为什么做某事”，关键要注意后面接“名词/动名词”，不能接动词原形。通过例句反复练习，就能熟练掌握啦！