【soasto和inorderto的区别】“so as to” 和 “in order to” 都是英语中用来表达目的的结构,常用于句子中说明某个动作是为了达到某种目的。虽然它们在意义上非常接近,但在使用上有一些细微差别。下面将从语法结构、语气、使用习惯等方面进行总结,并通过表格对比两者的异同。
一、语法结构
- so as to:通常用于主句之后,后面接动词原形,表示“为了……”。它强调的是动作的目的性。
- 例句:I studied hard so as to pass the exam.
- in order to:同样用于表示目的,结构上也是“in order to + 动词原形”,但更常用于正式或书面语中,语气更正式一些。
- 例句:I studied hard in order to pass the exam.
二、语气与用法差异
1. so as to 更加口语化,常用于非正式场合,有时可以省略“so as”,直接用“to”来表达目的,但此时需注意句子的完整性。
- 例句:He left early so as not to be late.(更口语)
- 也可以简化为:He left early not to be late.(但需注意时态和逻辑)
2. in order to 更加正式,常用于书面语或正式场合,语气更为严谨。
- 例句:She worked overtime in order to finish the project on time.
三、是否可省略
- so as to 后面不能省略“to”,否则句子会不完整。
- ❌ 错误:I studied so as pass the exam.
- ✅ 正确:I studied so as to pass the exam.
- in order to 同样不能省略“to”,否则句子不完整。
- ❌ 错误:I studied in order finish the exam.
- ✅ 正确:I studied in order to finish the exam.
四、是否能跟从句
- so as to 可以引导一个完整的不定式结构,但不能直接跟从句。
- ✅ I ran quickly so as to catch the bus.
- ❌ I ran quickly so as that I could catch the bus.(错误)
- in order to 同样不能直接跟从句,必须用“that”引导从句。
- ✅ I ran quickly in order to catch the bus.
- ✅ I ran quickly in order that I could catch the bus.(较正式)
五、常见搭配
- so as to 常见于口语表达,如:
- I did it so as not to upset you.
- She called me so as to get some advice.
- in order to 多用于书面或正式表达,如:
- The company launched a new product in order to increase sales.
- He took the job in order to gain experience.
六、总结对比表
| 特征 | so as to | in order to |
| 用途 | 表示目的,多用于口语 | 表示目的,多用于正式或书面语 |
| 结构 | so as to + 动词原形 | in order to + 动词原形 |
| 是否可省略 | 不能省略“to” | 不能省略“to” |
| 能否接从句 | 不能直接接从句 | 可以接从句(需加“that”) |
| 语气 | 更口语化 | 更正式 |
| 使用频率 | 较低 | 较高 |
七、小结
虽然“so as to”和“in order to”都表示“为了……”,但在使用上,“in order to”更正式、更常用,而“so as to”则偏向口语,且在某些情况下不能直接替代。了解它们的区别有助于我们在不同语境中选择合适的表达方式,使语言更加自然和准确。


