中考动名词
2011年中考英语语法精品总复习
动名词
动名词是非限定动词的一种形式，由动词原形+ing构成。它既有动词的特征，又有名词的特征，故称。动名词也有时态和语态的变化，如表所示（以及物动词write 为例），不及物动词没有语态的变化。
1. 动名词作主语、宾语和表语 1）作主语。例如：
Fighting broke out between the South and the North. 南方与北方开战了。 2）作宾语
a. 有些动词可以用动名词作宾语。例如：
调小一点，好吗
The squirrel was lucky that it just missed being caught. 这松鼠幸运得很，刚逃避了被逮住的厄运。
b. 有些结构后面可以用动名词作宾语或其他成分。例如： 用心 爱心 专心
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Her job is washing, cleaning and taking care of the children. 她的工作是洗刷、清扫和照顾孩子。
比较：She is washing, cleaning and taking care of the children. 4）作定语，一般表示所修饰名词事物的用途。例如：
a writing desk=a desk for writing 写字台 a swimming pool=a pool swimming 游泳池
有些动名词作定语，与所修饰的名词关系比较复杂。例如：
boiling point=a temperature point at which something begins to boil 沸点 a walking tractor=a tractor which a driver can operate while he or she is walking behind it 手扶拖拉机
2. worth 的用法
worth, worthy, worthwhile都是形容词，意为" 值得" 。
1) worth： be worth + n. 当名词为金钱时，表示"…… 值得……"
常见的有It ’s worth while to do./ It ’s worth （someone’s）while doing
be worth doing sth. "……某事值得被做"
The question is not worth discussing again and again. 这问题不值得反复讨论。 2) worthy：be worthy of +n. 当名词为抽象名词时表示"……值得……" be worthy to be done "某事值得被做"
The question is not worthy to be discussed again and again. 3) worthwhile： be worthwhile to do sth "值得做某事"
It is worthwhile to ask him to join the club.值得邀请他加入俱乐部。
典型例题
It is not ____ to discuss the question again and again. A. worth B. worthy C. worthwhile D. worth while
用心 爱心 专心
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答案C. 由worth 的用法可知，此句只适合词组be worthwhile to do sth.。选C 。 用心 爱心 专心 - 3 -