陳述部分肯定式+疑問(wèn)部分否定式
當(dāng)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時(shí),疑問(wèn)部分要用否定形式.如：
He looks unhappy,doesn't he?他看上去不高興,不是嗎?
The girl dislikes history,doesn't she?這女孩不喜歡歷史,不是嗎?
當(dāng)主句的主語(yǔ)為第二、三人稱時(shí),其后的簡(jiǎn)短問(wèn)句則應(yīng)與主句相一致（此時(shí),否定只看主句,與從句無(wú)關(guān)...）.例如：
Your sister supposes she needs no help,doesn't she?
You thought they could have completed the project,didn't you?
They don't believe she's an engineer,do they?
She doesn't expect that we are coming so soon,does she?
但如果主句的時(shí)態(tài)是過(guò)去時(shí)等等,疑問(wèn)句應(yīng)和主句的人稱時(shí)態(tài)保持一致.