［误］ The temperature of that room is higher than this room.
［正］ The temperature of that room is higher than that of this room.
［析］ 比较级用于两句话之间时，比较的部分不可省略掉，但为了避免重复，一般都要用that代替前面的单数名词，而用those代替前面的复数名词，如：The books in that box are bigger than those in this box。
［误］ He is no more here. Maybe he is at home.
［正］ He is no longer here. Maybe he is at home.
［析］ no more在现代英语中多译为："从此再也不会了"，如：His voice is no more here. 他已经去世了，他的声音不可能再出现了。而用no longer 表达目前的状态。要注意下面几组句子的实际含意：　This room is no cleaner than that one.即两间屋子都不干净。(两者都不干净) This room is not cleaner than that one,即这屋子不如那间干净。(前者不如后者干净。即一间干净，一间不干净。)