Question

2．他的同齡人已搬回城市好幾年了，而他仍堅(jiān)守那片保護(hù)區(qū)．
Peopleof his age have been back to the city for years，but he kept protecting the reserve．

Answer 1

分析 of his age have been back．

解答 答案：of his age have been back．
表示同齡人用of one's age作為定語修飾people，這里是of his age（他的同齡人），結(jié)合句意可知回來這個(gè)動(dòng)作be back發(fā)生在過去，持續(xù)了一段時(shí)間，故用現(xiàn)在完成時(shí)have/has+過去分詞，be的過去分詞been，主語people復(fù)數(shù)，故have，故答案是of his age have been back．

點(diǎn)評(píng) 現(xiàn)在完成時(shí)表示過去已經(jīng)開始，持續(xù)到現(xiàn)在還可能繼續(xù)下去的動(dòng)作或狀態(tài)，可以和表示過去的某一時(shí)刻延續(xù)到現(xiàn)在（包括"現(xiàn)在"在內(nèi)）的一段時(shí)間的狀語連用．如：these days，by the end of…，（到…為止） since （自從…以來），for+一段時(shí)間，so far （到目前為止）．