1、动名词作主语、宾语和表语在句子中充当除谓语以外的句子成分的动词形式叫做非谓语动词。非谓语动词分为三种形式:不定式，动名词，和分词(分词包括现在分词和过去分词)。不定式时态语态 主动 被动 一般式 to do to be done完成式 to have done to have been done动名词时态语态 主动 被动 一般式 doing being done完成式 having done having been done分词时态语态 主动 被动 一般式 doing being done完成式 having done having been done 否定形式： not +不定式， not
2、+ 动名词， not + 现在分词作主语Fighting broke out between the South and the North.南方与北方开战了。作宾语 动词后加动名词 doing 作宾语 V. + doing sthadmit 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 pr
3、actise 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：Would you mind turning down your radio a little, please? The squirrel was lucky that it just missed being caught. 词组后接 doing admit to preferto be used to lead to devote
4、oneself to object to stick to be busy look forward to to 为介词）no good, no use, Its worth, as well as, cant help, Its 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 u
5、pgive up burst out prevent from 作表语Her job is washing，cleaning and taking care of the children.worth 的用法worth，worthy，worth-while 都为 adj. 意为“值得“。1. 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.2. worthy：be worthy of +n. 当名词为抽象名词时
6、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.3. worth-while： be worth-while to do sth “值得做某事“worth while： It is worth while doing sthIt is worth while sb to do sth.典型例题It is not _ to discuss the question again and again.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。
