It was because of the rain that we put off the sports meet (强调原因状语) (3)It was because she was ill that they didn’t ask her to do the job. (强调原因状语从句) 3)如果被强调的代词是原句的主语,代词用主格I, we, he, she...,如果是宾语,则用宾格代词me...