题目内容
5.Can I have something to drink?I'mthirsty now.分析 我能喝一点东西吗?我现在渴了.
解答 答案:thirsty.结合上文的句意是说我能喝一点东西吗?故也就是渴了,句中I'm是I am的缩写,am在这里作为系动词,后加形容词构成系表结构,形容词thirsty渴的,故答案是thirsty.
点评 通常所说be既包括系动词be也包括助动词be
系动词后接名词、形容词、介词短语、(少数)副词及非谓语动词或从句作表语.(你现在记住名、形、介、副就行了)
I'm a student./I'm tall./I'm in Class One.
助动词是用来构成否定句疑问句或时态的,不能独立做谓语,只能和后面的实义动词一起使用.
I am talking.am用来构成进行时,叫助动词.
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