have既是助动词也是动词。作动词时有“有;持有;占有;由……组成;显示出,带有(性质、特征)”的意思。作助动词时与过去分词连用构成完成时。
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have助动词用法 1、(加过去分词,构成完成时态)已经;曾经 have/has done现在完成时; had done过去完成时;will have done将来完成时;would have done过去将来完成时;have/has been doing现在完成进行; had been doing过去完成进行。
They haven't finished the job yet.
他们尚未完成该项工作。
2、(用于虚拟语气,表示与过去事实相反的假设)(假如那时)……的话
She might have come if she hadn't been so busy.
当时若不是那么忙,她是可能来的。
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have动词用法 1、有,拥有 This coat has no pockets.
这件衣服没有口袋。
注意:have “有,拥有”,其疑问和否定形式有两种,如:
Do you have a brother? No, I don’t have a brother.
2、怀有,持有 Many people have doubts about the new project.
许多人对这项新工程有怀疑。
3、体验;经验;患
We had a wonderful time on the beach.
我们在海滩上玩得好极了。
4、拿;得到,取得
We gave him a present, but he wouldn't have it.
我们给他一件礼物,但他不肯接受。
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