need可以作为实意动词，是及物动词，后加动词不定式to do或名词。否定形式常考与情态动词的区别，要区分开，实意动词否定形式是don't need to do不需要去做某事need也是情态动词。后直接加动词原型。否定形式为needn't，needn't do sth不必做某事一般情况下肯定的都用实意动词（need to do sth需要做某事）一般用Must提问的否定回答是No,……needn't.或还有一个用法，sth needto be done = sth need doing 某物需要被……例如Flowers need to be watered.= Flowers need watering....
need[nid; ni:d]《源自古英语“穷困,必需”的意思》名词1 (U) [又作 a ~]a. 必需,需要,要求 [for,of]There was no [not much] ~ for haste.完全没有 [不太有] 必要慌张; 不 [不太] 需要匆忙 [急促]There is a great ~ of money...
