need作为不同词性的各种用法.求详解.

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need作为不同词性的各种用法.求详解.

need作为不同词性的各种用法.求详解.
need作为不同词性的各种用法.求详解.

need作为不同词性的各种用法.求详解.
需要”need 的用法
一、作情态动词
1.need作情态动词无人称或数的变化,后接动词原形,多用于否定句和疑问句中.如:You needn't worry.你不必担心.
2.由need引出的一般疑问句,肯定回答常用must或have to;否定答语常用needn't.如:
—3.由must引出的一般疑问句,肯定回答用must,否定答语用needn't或don't have to.如:
二、作行为动词
need 作为行为动词有人称和数的变化,后面可接名词、代词、动名词及带to 的动词不定式;可用于肯定句、疑问句和否定句中
作情态动词一、need表示“需要”或“必须”,通常用于否定句,疑问句,条件句.例如:1.You needn't do it again.你不需要重复做了.2.He needn't worry about it.这件事他无需担心.3.Need he do this homework first?他需要先做这些作业吗?4.Need they fill in the form?他们需要填表吗?二、在否定句中,可以用need的否定形式+不定式完成体.例如:1.We needn't have worried.其实我们不必担心.2.You needn't have mentioned it.你本来不必提起这件事.3.You needn't have said that when he asked.当他问的时候,你其实不必要说.三、needn't后的不定式间或也能用进行式或被动语态.例如:1.He needn't be standing in the rain.他不必要站在雨中.2.We needn't be waiting in this place.我们不必要在这儿等.3.The hedges needn't be trimmed this week.本周树蓠不必要整修.四、其一般疑问句的答语,肯定用must,否定用needn't.Need I go with her?我需要和她一起去吗?Yes,you must.是的,你需要去.No,you needn't.不,你不必去.作实义动词主+need +to do 主+need +doing =sth+need +to be done(都是实义动词,注意其否定为主+don‘t/doesn't+need +to be done或主+needn’t +be done例如:The room needs cleaning = The room needs to be cleaned.房间需要打扫了.另外,“need”作实义动词时后还可以直接跟名词.请看下面的例子:It is a question that needs very careful consideration.这是一个需要慎重考虑的问题很简单的方法区别情态动词与实义动词:当need为情态动词时,意思是“必要”,否定为"needn't",后面大多接动词原形,表示动作;当need为实义动词时,意思是“需要”,否定为"don't need",后面大多跟名词

楼主您好,Need to do sth , need sth , need sb to do sth我初一学过,谢谢,请采纳

作情态动词一、need表示“需要”或“必须”,通常用于否定句,疑问句,条件句。例如:1.You needn't do it again.你不需要重复做了。2.He needn't worry about it.这件事他无需担心。3.Need he do this homework first?他需要先做这些作业吗? 4.Need they fill in the form?他们需要填表吗? 二、在...

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作情态动词一、need表示“需要”或“必须”,通常用于否定句,疑问句,条件句。例如:1.You needn't do it again.你不需要重复做了。2.He needn't worry about it.这件事他无需担心。3.Need he do this homework first?他需要先做这些作业吗? 4.Need they fill in the form?他们需要填表吗? 二、在否定句中,可以用need的否定形式+不定式完成体。例如:1.We needn't have worried.其实我们不必担心。2.You needn't have mentioned it.你本来不必提起这件事。3.You needn't have said that when he asked.当他问的时候,你其实不必要说。三、needn't后的不定式间或也能用进行式或被动语态。例如:1.He needn't be standing in the rain.他不必要站在雨中。2.We needn't be waiting in this place.我们不必要在这儿等。3.The hedges needn't be trimmed this week.本周树蓠不必要整修。四、其一般疑问句的答语,肯定用must,否定用needn't。Need I go with her? 我需要和她一起去吗?Yes,you must. 是的,你需要去。No,you needn't. 不,你不必去。作实义动词主+need +to do 主+need +doing =sth+need +to be done(都是实义动词,注意其否定为主+don‘t/doesn't+need +to be done或主+needn’t +be done例如:The room needs cleaning = The room needs to be cleaned. 房间需要打扫了。另外,“need”作实义动词时后还可以直接跟名词。请看下面的例子:It is a question that needs very careful consideration.这是一个需要慎重考虑的问题很简单的方法区别情态动词与实义动词:当need为情态动词时,意思是“必要”,否定为"needn't",后面大多接动词原形,表示动作;当need为实义动词时,意思是“需要”,否定为"don't need",后面大多跟名词。词汇搭配~+名词need clothes 需要衣服 need education 需要受教育 need food 需要食物 need help 需要帮助 need money 需要钱 need rice 需要大米 need water 需要水 ~+副词need critically 极为重要地需要 need desperately 不顾一切地需要 need directly 直接地需要 need economically 经济上地需要 need genuinely 真正地需要 need horribly 惊人地需要 need imperatively 紧急地需要 need sorely 非常需要 need spiritually 精神上需要 need urgently 强烈地需要 ~+介词need for 为…而需要 need in 在…需要 词语辨析need,want这组词都有“需要,要求”的意思。其区别是:need表示因缺少而需要某物或需要做某事,尤其强调这种需要的迫切性; want表示从一般需要的意向到强烈、迫切的要求以及各种程度不同的愿望。编辑本段作名词双解释义U 1. 需要,需求 the condition in which sth necessary desirable,or very useful is missing,wanted U 2. 责任,必要 necessary duty,what must be done P 3. 需要的东西 sth one wants or must have U 4. 贫穷; 困窘 the state of not having enough food or money 基本要点⒈need用作名词作“需要,需求”解时,其后常接介词for或of短语作其定语,当表示“责任,必要”时,其后常接动词不定式。⒉need的复数形式needs可以表示多种需要。词汇搭配动词+~create need 创造需求 fill one's needs 满足自己的需要 fit〔meet〕 the needs 适合〔适应〕需要 have need to 必须,需要 have no need of 不需要 minister to sb's needs 满足某人的需要 形容词+~basic need 基本需要 daily〔everyday〕 needs 日常必需品 feminine needs 妇女必需品 great need 急需 material needs 物质需求 personal〔spiritual〕 need 个人〔精神〕需求 pressing〔universal〕 need 迫切〔普遍〕的需要 psychological〔physical〕 need 心理〔身体〕上的需求 short-term need 短期需要 unfulfilled need 未满足的需求 名词+~emergency needs 紧急需求 talent needs 人才的需要 介词+~according to the need 根据需要 at need 紧急时 below needs 不能满足需要 in need 迫切需要

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need 1. 情态动词,need+动词原形。
2. 实意动词 need to do 必须做某事
need doing 某事需要被做,表被动