【摘要】：2013四级考试进入了最后的冲刺阶段，语法的知识点是难点和重点，以下是威廉希尔app 特为考生们整理了助动词have的用法，希望能给广大考生们在复习中作出一点贡献。预祝考生们通过考试!
助动词have以及它的变体has, had等的主要用法如下：
1. have +过去分词，构成完成时态。如：
He has left for Japan. 他已去了日本。
We’ve just done the washing-up. 我们刚洗完碗碟。
Poor Jim has just had an accident. 可怜的吉姆刚出了个事故。
I have had this car for three years. 这辆汽车我已用了3年了。
By the end of last month, they had finished the work. 上月未他们就已经完成了工作。
2. have + been +现在分词，构成完成进行时。如：
I have been studying English for 8 years. 我学英语已达八年了。
The children have been having a lot of run. 孩子们一直玩得很开心。
We had been doing business with each other for years before we quarreled. 在吵翻之前，我们多年来在业务上一直来往。
By this time next year, we will have been doing business with each other for 20 years. 到明年这时候，我们的业务住来就满20年了。
I woke up—I had been having a bad dream. 我醒了，我做了个噩梦。
3. have+been +过去分词，构成完成式被动语态。如：
English has been taught in China for many years. 中国教英语已经多年。
I have been made redundant, so I’m going abroad. 我被定成了超编人员，所以我打算出国。
Thousands of pounds have been spent on the new hospital. 这家新医院花费了数千英镑。
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