need的具体用法我们老师和我们说don't need to do sth.,但我还是搞不清楚,求具体的need做情态动词和实义动词的用法和怎么区别!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 17:17:33
![need的具体用法我们老师和我们说don't need to do sth.,但我还是搞不清楚,求具体的need做情态动词和实义动词的用法和怎么区别!](/uploads/image/z/5802702-6-2.jpg?t=need%E7%9A%84%E5%85%B7%E4%BD%93%E7%94%A8%E6%B3%95%E6%88%91%E4%BB%AC%E8%80%81%E5%B8%88%E5%92%8C%E6%88%91%E4%BB%AC%E8%AF%B4don%27t+need+to+do+sth.%2C%E4%BD%86%E6%88%91%E8%BF%98%E6%98%AF%E6%90%9E%E4%B8%8D%E6%B8%85%E6%A5%9A%2C%E6%B1%82%E5%85%B7%E4%BD%93%E7%9A%84need%E5%81%9A%E6%83%85%E6%80%81%E5%8A%A8%E8%AF%8D%E5%92%8C%E5%AE%9E%E4%B9%89%E5%8A%A8%E8%AF%8D%E7%9A%84%E7%94%A8%E6%B3%95%E5%92%8C%E6%80%8E%E4%B9%88%E5%8C%BA%E5%88%AB%21)
need的具体用法我们老师和我们说don't need to do sth.,但我还是搞不清楚,求具体的need做情态动词和实义动词的用法和怎么区别!
need的具体用法
我们老师和我们说don't need to do sth.,但我还是搞不清楚,求具体的need做情态动词和实义动词的用法和怎么区别!
need的具体用法我们老师和我们说don't need to do sth.,但我还是搞不清楚,求具体的need做情态动词和实义动词的用法和怎么区别!
“need”作为实义动词时,通常用法是
人+need +to do 物+need +doing 物+need +to 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",后面大多接动名词,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.
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:
—Need I answer the question? 我需要回答那个问题吗?
—Yes, you must. /Yes, you have to.是的,你必须回答./是的,你得回答./No, you needn't.不,不必了.
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:
—Must I do the work now? 我必须现在干这个活吗?
—Yes, you must /have to.是的,你必须做./No, you needn't /don't have to. 不,你现在不必做.