has是have的第三人称单数形式。
have作动词有“持有;占有;由……组成;显示出,带有(性质、特征)”的意思,作助动词与过去分词连用构成完成时。另外have的现在分词是having,过去式是had,过去分词是had。
have的基本用法
一、have作实意动词
1.表示“有”的意思。
I have an English book.
He has two ping-pong bats.
2.have和一些其他名词连用,表示:
(1)一种活动。
They’re going to have a volleyball match.(举行比赛)
Are we going to have a meeting this week?(开会)
We are going to have a talk this afternoon.(谈话)
(2)患病。
I have got a headache.
I have a bad cold.
(3)发生的情况。
I’ve had so many falls that I’m black and blue all over.
(4)生育。
The queen ant may have tens of thousands of babies in one summer.
3.和一个与动词同形的名词连用,表示一个动作(have+a+与动词同形的名词)。
Are you going to have a swim.
I have a long talk with the teacher.
4.have on sth.或have sth.on表示“穿着”、“戴着”(=to be wearing)。
I noticed he had on bedroom slippers.
At the ball,Mary had a diamond necklace on.
5.表示“吃”、“喝”。
I wanted to have a cup of tea and some eggs.
Does she have lunch at home?