"Have"是英语中常用的动词,其用法包括"have + V-ed"表示完成时,"have + V-en"表示被动完成时,"have + V-ing"表示进行时,"have to"表示必须,以及"have got"表示所有。通过理解和练习这些用法,可以提高英语表达能力。
Have + V-ed
这种形式的have被称为“完成时”,表示过去某个时间点已经完成的动作。例如:
- I have finished my homework.(我已经完成了作业。)
- She has eaten breakfast.(她已经吃了早餐。)
Have + V-en
这种形式的have被称为“被动完成时”,表示过去某个时间点已经被完成的动作。例如:
- The book has been read by him.(这本书已经被他读了。)
- The cake has been eaten by them.(这个蛋糕已经被他们吃了。)
Have + V-ing
这种形式的have被称为“进行时”,表示正在进行的动作。例如:
- I have been studying for two hours.(我已经学习了两个小时了。)
- She has been watching TV all day.(她整天都在看电视。)
Have to
Have to表示“必须”,后面加动词原形。例如:
- I have to go to work.(我必须去上班。)
- We have to finish this project by tomorrow.(我们必须在明天前完成这个项目。)
Have got
Have got表示“有”,意思与have相同。例如:
- I have got a new phone.(我有一部新手机。)
- She has got two brothers.(她有两个兄弟。)