什么是现在分词和过去分词答:现在分词(Present Participle,又称-ing形式、现在进行式) ,是分词的一种,分词又分为现在分词和过去分词,它们都是非限定动词,即在句子里面不能单独充当谓语,但能充当其它的一些成分(定语,表语,补语和状语),并且它们具有动词的性质,所以又是类动词的一种。一般式:doing; 一般被动式:being done; 完成式:havingdone...
写出下列动词的第三人称单数形式、现在分词和过去式答:1 fights, fighting, fought 2 sounds, sounding, sounded 3 rings, rang, rang 4 wants, wanted, wanted 5 helps, helped, helped 6 eats, ate, eaten 7 sees, saw, saw 8 affords, afforded, afforded 9 sells, sold, sold 10 finds, found, found 11 thinks, thought, thought 12 ...