英语动词,介词,助动词=======之间的联系
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英语动词,介词,助动词=======之间的联系
英语动词,介词,助动词=======之间的联系
英语动词,介词,助动词=======之间的联系
二、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.
3) 最常用的助动词有:be,have,do,shall,will,should,would.
四、1)介词后面的关系词不能省略.
2)that前不能有介词.
3) 某些在从句中充当时间,地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换.
This is the house in which I lived two years ago.
This is the house where I lived two years ago.
Do you remember the day on which you joined our club?
Do you remember the day when you joined our club?