It is useless/ no use/ no good/a waste of time +doing sth.

(3) 动名词作主语时的逻辑主语：动名词作主语时可以有自己的______主语，"逻辑主语+动名词"叫做动名词的复合结构。动名词作主语时，逻辑主语的常见形式：1. 逻辑主语有生命时：名词所有格、形容词性物主代词2. 逻辑主语无生命时：名词普通格 3.逻辑主语是数词、指示代词、不定代词时：普通格。例：His leaving is a great loss. Yesterday being Sunday postponed the match.

学习活动二：用所给词的适当形式填空

1. (1) It is not good _____(say) such ugly words to him.

　(2)______ (work) in these conditions is not a pleasure but a suffer.

2. Listening to loud music at rock concerts ______ caused hearing loss in some teenagers. A. is B. are C. has D. have

问题二：非谓语动词作定语

1. 不定式作定语

（1） 作定语的不定式如果是不及物动词，或者不定式所修饰的名词或代词是不定式动作的地点、工具等，不定式后面须有相应的介词。

Eg. The Browns have a comfortable house to live in.

（2） 作定语的不定式所修饰的名词或代词是不定式动作的承受者时，不定式既可以用_______语态，也可以用______语态，但其含义有所不同。

Eg. Have you got anything to send? Have you got anything to be sent?

（3） 用不定式作定语的几种情况：1. 不定式表将来 2. 用来修饰被序数词、最高级或no, all, any等限定的中心词。 3. 用来修饰的词是抽象名词时用不定式，常见的有ability, chance, idea, fact, excuse, promise, answer, reply attempt, belief, way, reason, moment, time等。

学习活动一：单句改错

1. The surgeon has several patients to operate.___________

2. I'm free now. Have you something to do?_____________

3. There is no room storing the furniture in the house.__________

4. He is the last man doing things against his will._____________

2. 分词作定语

（1） 现在分词作定语：现在分词作定语时，与所修饰词之间是______关系。单个分词作定语一般放在所修饰的名词______，分词短语作定语放在所修饰的名词______。

现在分词的一般式（doing）作定语，表示______ ______的动作，现在分词一般式的被动