6. 带疑问词的不定式短语
不定式前可以加某些疑问代词，如who、what、which，或疑问副词，如when、where、how、why等，构成一种特殊的不定式短语，可在句子中作主语、宾语、表语或状语等。
How to improve English is often discussed among the students。
We haven’t decided when to visit the place。
The most difficult thing in learning English is how to speak the language well。
You haven’t answered my question where to get these books。
7. 某些动词后的不定式作宾语补足语时，不定式不带to，这些动词是feel， have， hear， let， make， notice， see， watch等。
Suddenly I felt the atmosphere in the room become tense。
I often hear them sing this song。
这篇2014年英语六级语法复习：不定式语法精析就为大家介绍到这里了，希望大家可以将以上内容背下来，预祝大家顺利过级!
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