阅读下面的材料,按要求作文。 我们的生活是多变的,你看:有时懒惰,有时勤奋;有时懊恼,有时快活;有时消极颓唐,有时积极进取;有时畏惧胆怯,有时勇敢无畏……有时表现为情绪,有时表现为行为:有时是刹那间的闪现,有时是长时间的绵延……有时是放任的,有时是自律的;有时是不知不觉的,有时是费尽心力的……它极像是一 Read the material below and write the composition as required. Our life is changeable. You see: sometimes lazy, sometimes diligent; sometimes upset, sometimes happy; sometimes negative, sometimes aggressive; sometimes fearful and timid, sometimes brave and fearless... sometimes expressed as emotion, sometimes as behavior: Sometimes it’s an instant flash, sometimes it’s a long period of time... Sometimes it’s laissez-faire, sometimes self-discipline; Sometimes it’s unknowing, sometimes it’s hard... It’s like a