we need a lot of energy to work and live.此句中energy 是不是可数名词,要不要加s.

问题描述:

we need a lot of energy to work and live.此句中energy 是不是可数名词,要不要加s.

energy为能量,不可数名词,a lot of 既可以加可数名词复数,也可以加不可数名词(some也是.)