6、.不能帮忙做.... cant/couldn'thelpdoing情不自禁做.... cann'thelpbutdosth.不得不做... 2、can’t help to do sth与can’t help doing sth例题解析 Heknowsnothingaboutit,sohecan’thelp_________anyofyourwork. A.doingB.todoC.beingdoingD.tobedone 【分析】此题答案应选B。比较以下结构: can’thelptodosth=不能帮助做某事 can’thelpdoingsth=禁不住做某事,情不自禁地做