有關(guān)動(dòng)詞原形的使用問題
新東方網(wǎng)絡(luò)課堂實(shí)在令我失望,老師錄音里說的句子總是跟他們講義里寫的不一樣,下面的句子又是如此,弄的我搞不清楚究竟他說的是對(duì)的,還是寫的是對(duì)的,求明白的朋友幫我指出來
例句：
Schools need to/should educated their students to refrain themselves from chatting no-line,since the main task of them is to focus on academic study
本句里need to或者should后面的動(dòng)詞不應(yīng)該用動(dòng)詞原形么?為什么educate要加個(gè)d?變成educated?是不是老師寫錯(cuò)了?我記得need to和should后面都應(yīng)該是接動(dòng)詞原形的,應(yīng)該是用educate才對(duì)吧?