PPT预览
不定式作定语和状语 不定式由“to＋动词原形”构成，有时to可以省略,其否定形式是"not to do”。不定式没有人称和数的变化,但有时态、语态的变化。不定式不能作谓语，但可以作主语、宾语、状语、表语、定语和补语。本单元主要讲述不定式作定语和状语的用法。
[观察例句] 1. I trained for a long time to fly airplane as a fighter pilot. 2. As we all know，an astronaut needs to be healthy and calm inorder to work in space. 3. First of all，you must be intelligent enough to get a relatedcollege degree.
