名词性从句及不定式、动名词作主语时,谓语动词一般用单数形式。【例如】To finish the work in advance is what he wants.Smoking cigarettes is dangerous to your healthWhat seems easy in theory is difficult in practice.What caused the accident is a complete mystery.但是,what引导名词从句作主语时,其表语是复数形式时,系动词也可以是复数形式。【例如】What we badly need here are qualified teachers.
dance这个词相信大家都知道,是“跳舞、舞蹈”的意思。但是dance的过去式是什么?可能有不少同学会不太清楚。其实很简单,dance这个词属于规则变化,以-e结尾的动词,其过去式和过去分词就直接在词尾加-d就可以了。所以,dance的过去式和过去分词都是danced。例句:We put the music on, and danced the Charleston.我们放起音乐,一块跳起了查尔斯顿舞。Tom danced with a beautiful girl.汤姆和一个漂亮妞跳舞了。</p 产品:澳博培训供货总量:不限产品价格:议定包装规格:不限物流说明:货运及物流交货说明:按订单