5、morehelp.你不应该帮助他那么多。十、“need+have+done”表示本来需要做某事而没有做。“needn‘t+have+done”则表示“本来不需要做某事而做了”。Ineedn‘thaveboughtsomuchwine—onlyfivepeoplecame.我本来没有必要买这么多酒,只来了五个人。Heneedhavehurriedtothestation.Inthatcase,hewouldn'thavemissedthetrain.他本来需要快点去车站,那样的话,他就不会误了火车。高考题1.Theweather turned out to befineyesterday.