名词前面加什么时候加the比如说Oncetheemotionshavebeenaroused--asenseofthebeautiful,theexcitementofthenewandunknown,afeelingofsympathy,pity,admirationorlove--thenwewishforknowledgeabouttheobjectofouremotiona

　　名词前面加什么时候加the

　　比如说Oncetheemotionshavebeenaroused--asenseofthebeautiful,theexcitementofthenewandunknown,afeelingofsympathy,pity,admirationorlove--thenwewishforknowledgeabouttheobjectofouremotionalresponse.

　　疑问1,为什么emotions前面加the而sympathy,paty,admiration,love前面不加the?

　　疑问2,thenwewishforknowledge而不是theknowledge

　　疑问3,asenseofthebeautiful对么?beautiful不是名词么?为什么前面加the

　　请高手不吝赐教啊···感激万分···