Question

17．He often does sports after school．（變一般疑問(wèn)句）Does he often do sports after school？．

Answer 1

分析 放學(xué)后他經(jīng)常做運(yùn)動(dòng)．
放學(xué)后他經(jīng)常做運(yùn)動(dòng)嗎？

解答 答案：Does he often do sports after school？句中的does是實(shí)意動(dòng)詞do"做"的三單形式，一般疑問(wèn)句借助于助動(dòng)詞do或者does，主語(yǔ)是he三單，故does，后加動(dòng)詞原形do，故答案是Does he often do sports after school？

點(diǎn)評(píng) 一、含有be動(dòng)詞（am/is/are/was/were）動(dòng)詞的一般疑問(wèn)句，通常把be動(dòng)詞調(diào)到句首． 
二、含有情態(tài)動(dòng)詞（can/may/must/could）的一般疑問(wèn)句，把情態(tài)動(dòng)詞調(diào)到句首．
三、句子里沒(méi)有be動(dòng)詞、助動(dòng)詞、情態(tài)動(dòng)詞等，就需要加助動(dòng)詞do，does，、did（過(guò)去式）來(lái)構(gòu)成疑問(wèn)句，加上這些助動(dòng)詞后，句子中謂語(yǔ)動(dòng)詞必須用原形．  
其句型為：Do/Does/did+主語(yǔ)+動(dòng)詞原形+其它？