1）作主语
Fighting broke out between the South and the North.
南方与北方开战了。
2）作宾语
a. 动词后加动名词doing作宾语 V+ doing sth
admit 承认 appreciate 感激，赞赏 avoid 避免
complete 完成 consider 认为 delay 耽误 deny 否认 detest 讨厌 endure 忍受 enjoy 喜欢 escape 逃脱 prevent阻止 fancy 想象 finish 完成 imagine 想象 mind 介意 miss 想念 postpone 推迟 practise 训练 recall 回忆 resent 讨厌 resist 抵抗 resume 继续 risk 冒险 suggest 建议 face 面对 include 包括 stand 忍受 understand 理解 forgive 宽恕 keep 继续
举例：
（1）Would you mind turning down your radio a little，please？
（2）The squirrel was lucky that it just missed being caught.
b.词组后接doing
admit to prefer…to be used to
lead to devote oneself to object to
stick to busy look forward to（to为介词）
no good， no use， It is worth…， as well as，
can not help， It is no use /good be tired of
be fond of be capable of be afraid of
be proud of think of / about hold off
put off keep on insist on count on / upon
set about be successful in good at take up
give up burst out prevent … from…
3）作表语
Her job is washing，cleaning and taking care of the children.
2 worth 的用法
worth，worthy，worth-while都为adj.意为"值得". worth：be worth + n.当名词为金钱时，表示"…… 值得……"
be worth doing sth."……某事值得被做"
The question is not worth discussing again and again. 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 againand again. worth-while：be worth-while to do sth"值得做某事"
worth while：It is worth while doing sth
It is worth while ** to do sth.
典型例题
It is not ____ to discuss the question again and again.
A.worth B.worthy C.worth-while D.worth while
答案C. 由worth的用法可知，此句只适合词组be worth-while to do sth.。因此选C.
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