【正确答案】：
THE SONGS OF INNOCENCE (1809) IS A LOVELY VOLUME OF POEMS, PRESENTING A HAPPY AND INNOCENT WORLD, THOUGH NOT WITHOUT ITS EVILS AND SUFFERINGS.
HIS SONGS OF EXPERIENCE (1794) PAINTS A DIFFERENT WORLD, A WORLD OF MISERY, POVERTY, DISEASE, WAR AND REPRESSION WITH A MELANCHOLY TONE.
CHILDHOOD IS CENTRAL TO BLAKE'S CONCERN IN THE SONGS OF INNOCENCE AND SONGS OF EXPERIENCE.
【题目解析】：《天真之歌》(1809)是一部可爱的诗集，描绘了一个快乐而天真的世界，但也有它的罪恶和痛苦。他的《经验之歌》(1794)以忧郁的口吻描绘了一个不同的世界，一个充满苦难、贫穷、疾病、战争和压迫的世界。在《天真之歌》和《经验之歌》中，童年是布莱克关注的中心。