The retired man donated most of his savings to the school damaged by the earthquake in yushu,_______the students to return to their classrooms.答案是天enabling我想选to neable我想用不定式表目的,请问为什么不可以?是不是听说

The retired man donated most of his savings to the school damaged by the earthquake in yushu,_______the students to return to their classrooms.答案是天enabling我想选to neable我想用不定式表目的,请问为什么不可以?是不是听说
The retired man donated most of his savings to the school damaged by the earthquake in yushu,_______the students to return to their classrooms.
答案是天enabling
我想选to neable
我想用不定式表目的,请问为什么不可以?
是不是听说不定式表目的不能放逗号后面的?我不太清楚

The retired man donated most of his savings to the school damaged by the earthquake in yushu,_______the students to return to their classrooms.答案是天enabling我想选to neable我想用不定式表目的,请问为什么不可以?是不是听说
一、非谓语动词作状语的区别：
1.不定式：目的和结果状语,
2.分词：时间、原因、条件和伴随方式状语
二、不定式短语作状语可以放在句首,短语后需要用逗号；也可以放在句尾,但是前面不能加逗号.如：
前置：To enable the students to return to their classrooms,the retired man donated most of his savings to the school damaged by the earthquake in yushu.
后置：The retired man donated most of his savings to the school damaged by the earthquake in yushu to enable the students to return to their classrooms.
目的状语的意思是：为了能使那里的学生重返教室,那位退休老人把自己大多数积蓄捐赠给了玉树被地震破坏了的学校.
三、后置的分词短语一般用作伴随方式状语,如果状语部分较长,前面用逗号与句子的主体部分分开,如：
The retired man donated most of his savings to the school damaged by the earthquake in yushu,enableing the students to return to their classrooms.
意思是：那位退休老人把自己大多数积蓄捐赠给玉树被地震破坏了的学校,（以此方式）使得那里的学生能够重返教室.

逗号后不跟动词不定式，动词不定式表目的或结果（出乎意料或事与愿违的）。现在分词表主动、进行、表伴随、表结果（自然而成）

enabling在分词表原因，相当于原因状语从句，若用To enable 表目的，一般放在句首，我是这样理解的！呵呵

enabling

因为这里有逗号，所以后句应该是整个句子的一个成分。
而不定式表目的是不能放在逗号后面的。
所以这里选择用现在分词作状语。

因为逗号把整个句子分成两个分句，而to enable如果要用在这句话中的话，则要把后面的分句提前，改成：To enable the students to return to their classrooms，the retired man donated most of his savings to the school damaged by the earthquake in yushu.

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因为逗号把整个句子分成两个分句，而to enable如果要用在这句话中的话，则要把后面的分句提前，改成：To enable the students to return to their classrooms，the retired man donated most of his savings to the school damaged by the earthquake in yushu.
enabling在分词表原因，相当于原因状语从句，若用To enable 表目的。

如果不提前也行，可以改成：The retired man donated most of his savings to the school damaged by the earthquake in yushu to enable the students return to their classrooms.因为原句在students之后有个to，相当于是把enable提前了，所以不能用to enable

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