To，In order to，So as to，So that，In order that表目的

jakke

To，In order to，So as to，So that，In order that表目的

（1）带to的不定式及in order to和so as to可以用来表示目的：

  I went to live in France to/in order to/so as to learn French.

（2）not to可以用来表示取舍：

  I went to France not to study French, but to study chemics.

（3）so as not to/in order not to可以用于表示“以防”：

  I shut the door quietly, so as not to/in order not to wake the bady.

（4）在bring，buy，need，take，use，want等动词后经常用宾语加to不定式，用来表示宾语的目的。

  I need a spoon to eat this ice cream with.

（5）连词so that，in order that可以引导目的状语从句。目的状语从句必须具备一个特征, 在动词前面一定要出现情态动词，当主句用一般现在时、现在完成时或一般将来时的时候，so that和in order that后面可以跟may，can或will；当主句用一般过去时、过去进行时或过去完成时的时候，so that和in order that后面可以跟should，could，might或would。

  I’ve arrived early so that/ in order that I may/ can /will get the tickets.

I arrivd early so that/in order that I might not miss anything.

（7）当前后主语不一致时，不定式前面加for +名词/代词比that结构更简洁，不定式的逻辑主语for sb. to do sth.

He was barking for someone to let him out.

=He was barking so that someone would let him out.