Question

11．他們已經(jīng)學(xué)了5年英語(yǔ)了．
Five yearshas passed since they beganto learn English．

Answer 1

分析 has passed，to learn．

解答 答案：has passed，to learn．句中since表示自從，引導(dǎo)的是時(shí)間狀語(yǔ)從句，開(kāi)始做某事用begin to do sth，學(xué)習(xí)learn，故to learn．主句是說(shuō)五年已經(jīng)過(guò)去了，用現(xiàn)在完成時(shí)have/has+過(guò)去分詞，時(shí)間過(guò)去用pass，主語(yǔ)是時(shí)間five years謂語(yǔ)動(dòng)詞用單數(shù)has，故答案是has passed，to learn．

點(diǎn)評(píng) since作連詞，指"時(shí)間"，表示"自…以來(lái)"．Since引導(dǎo)時(shí)間狀語(yǔ)從句，表示主句的動(dòng)作，從過(guò)去的某一點(diǎn)時(shí)間持續(xù)到現(xiàn)在，從名時(shí)態(tài)常用一般過(guò)去時(shí)，主句的時(shí)態(tài)一般用現(xiàn)在完成時(shí)．如：He has not written to me since he graduated from high school．自從他中學(xué)畢業(yè)以來(lái)，一直沒(méi)有寫(xiě)信給我．