在英语里什么是助动词、情态动词、be动词、实义动词（最好是自己理解的，简单好懂得）？怎么分别助动词、
顾名思义，助动词就是帮助动词的词，例如，DO you need some coffe?其中need就是动词而do就是助动词，常见的动词有be, have, do, shall, will, should, would 。而情态动词就是情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。 情态动词有四类：
①只做情态动词：must,can(could),may(might),ought to
②可做情态动词又可做实义动词：need,dare
③可做情态动词又可做助动词：shall(should),will(would)
④具有情态动词特征：have(had) to,used to
实在太多了，你可以参考 http://baike.baidu.com/view/190314.htm
然后根据意思自己用你最行的方式记忆，这种东西多看就多练！
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