need /ni:d/ I. vt. 1. 需要 （跟名词/代词、不定式、v-ing或不定式的被动形式以及复合结构）： They are certain to need help.他们当然需要帮助。He didn’t need to set off so early.他不需要这么早出发。The house needs repairing.(=The house needs to be repaired.) 这座房子需要修理。I need you to work for me. 我需要你为我干活。I need my coat mended.我的衣服需要补。 2.缺少，欠缺：This soup needs salt.这汤缺盐。 ‖II.aux. v.必须(用于否定句和疑问句) — Must he come? — No, he needn’t.“他必须来吗?” “不，他不必来”。You needn’t have gone there yesterday. 昨天你本不必去那儿的。Why need you go today? 你为何必须今天去? — Need we come? — Yes, you must. (No, you needn’t.) “我们必须来吗?” “是的，你必须来。”(不，你不必来)。［考句］ You needn’t have done all those calculations! We have a computer to do that thing.你已经做了全部计算，而这是没有必要的，这类计算我们有计算机来做。（[注] needn’t have done“不必做”；can not have done “不可能做”；shouldn’t have done“本不应该做”；must have done“一定做了某事”，其否定式是can’t have done，不用must not have done ）‖III. n. 1.［u］必需，需要：There is no need for him to come. 不需要他来。I have no need of your advice. 我不需要你的建议。We find that there is still a need for further discussion.我们觉得还有进一步讨论的必要。I felt the need to do something. 我觉得需要做点事了。2.［c］需要的东西；需求(常用 pl.): What are your needs?你需要什么? in need of 需要: We are in great need of money. 我们急需钱用。