都市透视龙眼全文免:帮我分析一下句子

so as to adv.使得, 以致 如此...以致于
so As to 这(那)样...以致
so as to+动词原形，即do，用infinitive 动词不定式（to do 形式）来引导目的状语从句，表示so as to 前面发生的动作目的是什么，为了什么
so that 也是引导目的状语从句的一种，但是that后面是跟一个完整的句子
他们两个是可以互换的
比如
Mail your package early so as to ensure its timely arrival.
＝mail your package early so that it will timely arrive
早点寄出你的包裹以便保证它能及时寄到

I stopped so that you could catch up.
=i stopped so as to let you catch up
我停下来以便你能赶上

不是目的状语从句，而是目的状语。“以便，为的是”。相当于to do 和 in order to do 。状语从句是so that 和 in order that 加 从句。
You must study hard so as to get the certificate.
＝You must study hard to get the certificate。
＝You must study hard in order to get the certificate.
＝You must study hard so that you can get the certificate.
＝You must study hard in order that you can get the certificate.
意思是你必须努力学习以便拿到证实。

You must study hard so as to get the certificate.

so as to get the certificate.是目的壮语 表示为了。。。
这句话的意思是 你必须好好学习 为了拿到一个证书
so as to adv.使得, 以致 如此...以致于
这里同样可以用to 或者in order to
to 这个词本身就有一种朝向性 一种目的性很强的感觉

要知道句子中的东东在句子里是什么成份 主要是弄明白句子的意思 ~~

^_^

so as to 接目的
整句意思是 study hard so that I can get the certificate

目的状语从句

so as -->> 所以可以
。。。可以加强语气吧...
这句本来可以省略so as to 的
you much study hard to get the certificate