513　不定式经常用作状语，表示目的、结果、程度等

1　用作目的状语。

He has gone to Shanghai to look for a job. 他去上海找工作了。

She studied hard to pass the exam. 她刻苦学习，以便能通过考试。

2　用作程度状语。

This book is easy to read . 这本书容易读。

The work is difficult to do . 这项工作难做。

3　用作结果状语。

The girl is too young to look after herself. 这个女孩太小，不能照顾自己。

The tree is too tall for him to climb . 这棵树太高，他爬不上去。