英语主谓宾表定状补成分精简讲解1 主语:主语(subject) 是一个句子的主题( theme), 是句子所述说的主体。它的位置一般在一句之首。可用作主语的有单词、短语、从句乃至句子。 1 名词作主语。 A tree has fallen across the road. (倒下横在) Little streams feed big rivers. ( 小河流入大江。) 2 代词用作主语。 Youre not far wrong. (你差不多对了)。 He told a joke but it fell flat. (他说了个笑话,但没有引人发笑) 3 数词用作主语。 Three is enough. 三个就够了。 Four from seven leaves three. 7减4余3。 4名词化的形容词用作主语。 The idle are forced to work. 懒汉被迫劳动。 Old and young marched side by side. 老少并肩而行