PeriodFourGrammar—Didn’tneedtodoandneedn’thavedone感知以下课文原句,完成方框下的小题1.Webroughtsomefoodtothepartybuttherewastoomuch,soweneedn’thavebroughtany
2.MyfriendspokegoodMandarinsoIdidn’tneedtotranslatethespeechforhim
3.Theofficehadalreadyopenedwhenwearrivedsowedidn’tneedtowaitoutsideinthestreet
4.Igottothepartyat6p.m
buttherewasnoonethere,soIneedn’thavearrivedsoearly
5.Itoldthehostallaboutmyhometownandthenhetoldmehehadbeenthere
Ineedn’thavetoldhimanything
1.句2和句3中didn’tneedtodo表示“没必要,实际上也没有做某事”;2.句1、句4和句5中needn’thavedone则表示“虽然没有必要,但实际上已经做了某事”
need既可用作实义动词,也可用作情态动词
一、用作实义动词need用作实义动词时,和其他普通的实义动词一样,有时态、人称和数的变化,其否定式和疑问式要借助于助动词do/does/did
常用搭配Weneedtosetoffatonce
我们需要马上出发
Theflowersneed花需要浇水了
Doesyourfatherneedanyhelp
你爸爸需要帮助吗
Theydon’tneedtowaterflowersanymore
他们不必再浇花了
二、用作情态动词1.用作情态动词,后接动词原形,常用于否定句和疑