此類形容詞有easy，hard，difficult，cheap，expensive，fit，nice，good，funny，exciting，light，heavy，dangerous，comfortable，delicious等。若所用動詞是不及物動詞時要加相應的介詞。
例如：
The fish is delicious to eat．
The ground is too hard to dig.
The chair is comfortable to sit on．
The girl isn’t easy to get along with．
This kind of water isn’t fit to drink.
9．不定式作後置定語，與所修飾的詞有動賓關係，又與句中其它名詞或代詞有主謂關係，這時不定式用主動形式表被動意義。這種用法同樣適用於with的複合結構中。若不定式為不及物動詞時，其後應加相應的介詞。
例如：
Do you have anything to say？
He is a pleasant person to work with.
With so much work to do，Mary cannot but stay at home．
With so many problems to settle，I can’t go to the cinema with you tonight．
10．特殊結構：make sb．heard／understood……（使別人能聽見／理解……自己）等。
例如：
Explain it clearly and make yourself understood．
He raised his voice so that he could make himself heard．
鞏固練習
一、單項選擇
1．This novel_______very well．
A．sells B．is sold C．will be sold D．has been sold
2．This kind of ballpen which_______smoothly is quite popular with students.
A. is written B. writing C. written D. writes
3．The teacher really didn’t know who_______for putting the papers out of order．
A. to be blamed B. was to blanle C. was blamed D. was blaming
4．To learn English well，we should find opportunities to hear Enlish_______as much as we can.
A. speak B. speaking C. spoken D．to speak
5. I like getting up very early in summer．The morning air is so good_______.