Question

18．因为大雨，Tony上学迟到了．（ because of ）Because of the heavy rain，Tony was late for school．．

Answer 1

分析 Because of the heavy rain，Tony was late for school．

解答 答案：Because of the heavy rain，Tony was late for school．这里是说过去的事情用一般过去时，因为大雨，用because of后加上名词the heavy rain，故Because of the heavy rain，做某事迟到了用be late for，后加名词代词或动名词，这里加上school名词，主语Tony三单，故was，故答案是Because of the heavy rain，Tony was late for school．

点评 because是连词，其后接原因状语从句或回答以why开头的问句； 
而because of是复合介词，其后接名词、代词或动名词，或者what引导的名词性从句．
如 
Because he is ill，he is absent today．
He is not at school  because of his illness．