一剪寒梅love
你的这道题应该选keep up 解释为:作为一个中学三年级的学生,在失败面前保持清醒的头脑是很重要的.四个词组的解释如下:keep up 1. (使)不停止Rain kept up all day.雨下了一整天2. 保持He kept up a correspondence with Tom.他和汤姆保持通信联系。keep on1. 继续He kept on talking.他讲个不停。2. 继续雇用He kept Bob on as a manager.他继续留用鲍勃当经理。3. 继续拥有She'll keep the apartment on through the summer.整个夏天她将继续租用那间公寓。keep out1. (使)不进入Warm clothing helps to keep out the cold.保暖的衣服可以御寒。keep off 1. (使)不接近;挡开He drew the curtain to keep the sun off.他拉上窗帘遮住阳光。