助动词是什么?助动词有些什么?
助动词是什么?助动词有些什么?
什么是助动词?
1)协助主要动词构成谓语动词词组的词叫助动词(Auxiliary Verb).被协助的动词称作主要动词(Main Verb).
助动词自身没有词义,不可单独使用,例如:
He doesn't like English.他不喜欢英语.
(doesn't是助动词,无词义;like是主要动词,有词义)
2) 助动词协助主要动词完成以下功用,可以用来:
a.表示时态,例如:
He is singing.他在唱歌.
He has got married.他已结婚.
b.表示语态,例如:
He was sent to England.他被派往英国.
c.构成疑问句,例如:
Do you like college life?你喜欢大学生活吗?
Did you study English before you came here?你来这儿之前学过英语吗?
d.与否定副词not合用,构成否定句,例如:
I don't like him.我不喜欢他.
e.加强语气,例如:
Do come to the party tomorrow evening.明天晚上一定来参加晚会.
He did know that.他的确知道那件事.
最常用的助动词有:be,have,do,shall,will,should,would
半助动词
功能介绍 在功能上介乎主动词和助动词之间的一类结构,称为半助动词.常见的半助动词有be about to,be due to,be going to,be likely to,be meant to,be obliged to,be supposed to,be willing to,have to,seem to,be unable to,be unwilling to等.
情态助动词
情态助动词 1.情态助动词包括will(would),shall(should),can(could),may(might),must,need,dare,ought to,used to,had better后接原形不定词.2.情态助动词不受主词的人称和数的限制.3.两个情态助动词不能连用.中文:他将能够及时完成此事.(误)He will can finish it i.
基本助动词
基本助动词 基本助动词只有三个:be,do,have,他们没有词汇意义,只有语法作用,如协助构成进行体,完成体,被动态,否定句,疑问句等.例如 He is giving a lecture.他在作报告He has made a plan.他已经订了计划The small animals are kept in the cages.小动物都关在笼子里.He doesn't smoke.