because　习惯上不与　so　连用.汉语习惯上说“因为…所以…”,但英语习惯上却不能将　so与because　连用：因为下雨,所以我们呆在家里误：Because　it　was　raining,　so　we　stayed　at　home．正：Because　it　was　raining,　we　stayed　at　home．　正：It　was　raining,　so　we　stayed　at　home．