7.____________ vi.不见；消失→appear vi.出现(反义词) 8.____________ adj.绝种的；消亡了的→extinction n.灭绝；绝种 9.____________ n.毁坏→destroy v.破坏 10.____________ adj.变化莫测的→predictable adj.可以预测的→predict v.预测→prediction n.预测 11.____________ adj.正面的；积极的→negative adj.反面的；消极的(反义词) 12.____________ n.运气；命运；财富→fortunate adj.幸运的→fortunately adv.幸运地

disappear

extinct

destruction

unpredictable

positive

fortune