need的用法

need的用法

“need”的用法如下：1.need用作情态动词，后面接动词原形，通常用在否定句和疑问句中。It's only eight o'clock, need you get up so early?There needn't be any arguments about this question.2.回答need引起的问句时，肯定回答用must，否定回答用needn't或don't have to。Need we take our shoes at the door. Yes. You must./No.you needn't.3.need用f作实义动词时，有时态、人称和数的变化。4.need to do和need doing。need to do:l need to do my homework.need doing=need to be done:My homework needs doing.5.needn't have done与didn't need to do。needn't have done表示过去本不必做但实际上却做了某事。We needn't have hurried because the train left late anyway.didn't need to do表示过去不必做而实际上也没做某事。l didn't need to get up early this morning.so l stayed in bed until 9 am.

need的用法

need作为动词，有两种理解，一是做情态动词，二是做行为动词。\x0d\x0a1）need作为情态动词时，一般不用于肯定句，只用于否定句/疑问句。\x0d\x0a其后直接加动词原形，没有时态/人称的变化。\x0d\x0a其否定句为在need后面直接加not，或使用缩写needn't.\x0d\x0a如：I needn't work hard.\x0d\x0a其疑问句必须把情态动词need提前，回答也一般借助于need.\x0d\x0a如：Need I help you?\x0d\x0a2）need作为行为动词时，可用于各种句子，有过去式needed和三单形式needs.\x0d\x0a其否定句必须借助于助动词don't/doesn't/didn't等变化。\x0d\x0a如：I don't need to work hard.\x0d\x0a其疑问句也必须借助于助动词do/does/did等变化。\x0d\x0a如：What do you need me to do?\x0d\x0a其结构一般有：\x0d\x0aneed sb/sth 如：I need you. I need your help.\x0d\x0aneed to do sth 如：I need to work harder.\x0d\x0aneed sb to do sth 如：I need you to help me.\x0d\x0aneed doing = need to be done 如：My watch needs repairing. = My watch needs to be repaired

need的用法

“need”是一个动词，表示需要或需要做某事。以下是几种常见的用法：后接名词或代词作宾语，表示需要某物或某人做某事。例如，“我需要一杯水。”、“他需要一些帮助。”后接动词的不定式形式，表示需要做某事。例如，“我需要写一篇论文。”、“他需要学习更多的知识。”后接动名词或名词性从句作宾语，表示需要某种行为或状态。例如，“他需要不停地工作来维持生计。”、“她需要知道真相才能安心。”用于疑问句中，表示询问是否需要某物或某人做某事。例如，“你需要帮忙吗？”、“他需要我们的支持吗？”需要注意的是，“need”本身已经表示了一种必要性，因此在使用时不需要再加上“必须”、“一定要”等强调语气的词语。