1.不及物动词与状语连用,用以表示主语的品质和状态.
常见动词是：cut,sell,read,write,fill,cook,lock,wash,drive,keep等.
This knife cuts well.这把刀好切.
These books sell well.这些书好卖.
The pen writes smoothly.这支笔写起来流畅.
Meat won’t keep long in such hot weather.肉在这样热的天气里放不长久.
The cloth washes well.这种布好洗.
2.一些连系动词的主动式＋形容词.常见动look,smell,taste,sound,feel,prove,turn out等.
The apples taste good.
The flower smells wonderful.
The news proved/turned out true
Cotton feels soft.
3.不定式在某些形容词之后,且与主语有动宾关系.
常见形容词有：hard,defficult,easy,heavy,fit,good,comfortable,convenient,impossible等.
The problem is easy to do.
The question is difficult to answer.
The box is heavy to carry.
The project is impossible to complete in a year.