atoms and molecules并列名詞作復(fù)合主語 always 狀語were much（程度修飾的狀語） more比較結(jié)構(gòu)的狀語 likely to emit light spontaneously狀語.
were likely to emit復(fù)合結(jié)構(gòu)作狀語 light作賓語那謂語呢？我不懂得地方是were likely to emit light的謂語和賓語是怎么劃分的？尤其的這里的謂語是有什么成分做的？were likely to emit前面的就是謂語呀，這種叫復(fù)合謂語，核心詞是動詞emit，而 light就是emit的賓語