need作为情态动词和实义动词(行为动词)在意思、用法上有什么区别

问题描述:

need作为情态动词和实义动词(行为动词)在意思、用法上有什么区别
我需要上学吗 如何翻译:
是 Do I need to go to school?
还是Need I go to school?

need 作情态动词用时,常用于疑问句、否定句.
1.You needn’t come so early.2.---- Need I finish the work today?
---- Yes,you must./ No,you needn’t.