Question

9．你能猜猜我叔叔買(mǎi)這個(gè)機(jī)器人多久了？
Can you guess how long my uncle has had the robot？．

Answer 1

分析 Can you guess how long my uncle has had the robot？

解答 答案：Can you guess how long my uncle has had the robot？這里需要用賓語(yǔ)從句來(lái)表達(dá)，主句是你能猜猜，用含有情態(tài)動(dòng)詞can的一般現(xiàn)在時(shí)，是一般疑問(wèn)句將can放句首，主語(yǔ)you，后加動(dòng)詞原形guess猜，故Can you guess．后面是賓語(yǔ)從句，時(shí)態(tài)不受限制，買(mǎi)buy這個(gè)動(dòng)作發(fā)生在過(guò)去，持續(xù)了一段時(shí)間，用現(xiàn)在完成時(shí)have/has+過(guò)去分詞，多久用疑問(wèn)詞how long，后加陳述句語(yǔ)序，主語(yǔ)my uncle，故has，buy是短暫性動(dòng)詞，不能與how long連用，換成have，have的過(guò)去式had，這個(gè)機(jī)器人the robot，故答案是Can you guess how long my uncle has had the robot？

點(diǎn)評(píng) 賓語(yǔ)從句的三要素：引導(dǎo)詞，時(shí)態(tài)和語(yǔ)序，要牢記．