摘要: Some people don’t have money to buy the things they need .有些人没有钱来买他们所需要 need 的用法 知识拓展 need可以作行为动词.情态动词和名词,具体用法如下: ① 用作行为动词.意思为“需要 “必须 . a. need + 名词.如: ◆ I need another piece of bread . 我还需要块面包. b. need +动词不定式.如: ◆ You need to close all the windows before you leave. 在你离开之前需要把所有的窗子关上. c. need + sb + to do sth. 如: ◆ We need someone to help me move the box. 我们需要个人来帮助我搬这个箱子. d. need doing sth.= need to be done 如: ◆ Your bike is broken . It needs repairing .你的自行车坏了.需要修理. ② 用作情态动词.多用于疑问句和否定句.如: ◆ Need he do his homework right now ? 他必须马上做家庭作业吗? ◆ You needn’t worry about your lesson . 你不必为你的功课担心. ③ 用作不可数名词.意思为“需要.必要 .如: ◆ It’s no need to see him. 没有必要去看他. ④ 用作可数名词.意思为“需要的东西.需求 .如: ◆ Man needs a lot of fresh water for their needs .人类需要许多淡水满足他们的需求.

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