She had little to eat,__did_ __she___?
little 本身有否定意味
參考：
（1）當陳述部分有never,seldom,hardly,few,little,barely,scarcely,nothing,none,rarely 等否定意義的詞匯時,后面的反意疑問句則為肯定形式：
There are few apples in the basket,are there?
He can hardly swim,can he?
They seldom come late,do they?
（2）當陳述部分含有否定意思的詞是unhappy,dislike,unfriendly等含有否定詞綴的派生詞,也就是有un-前綴、-less后綴等含有詞綴而意思否定的詞,當做肯定句處理,疑問部分要用否定形式.如：　　He looks unhappy,doesn'the?他看上去不高興,不是嗎?
The girl dislikes history,doesn'tshe?這女孩不喜歡歷史,不是嗎?
有l(wèi)ess,fewer等詞視為肯定詞,疑問部分用否定形式.
如：　There will be less pollution,won't there?為什么用“did”？