1. 助动词have的形式
I have lived here all my life.
我一辈子都住在这里。
I have lost my key.
我的钥匙丢了。
The rain has already stopped.
雨已经停了。
When I arrived, Jane had just left.
我到达时，简刚刚离开。
2. 助动词have的疑问句
Have you been waiting long?
你等了很久吗？
Have you had your supper yet?
你吃晚饭了吗？
Has he phoned you yet?
他给你打电话了吗？
Had Jane left when you arrived?
你到达时简离开了吗？
3. 助动词have的否定句
I haven't seen you for ages.
我好多年没见到你了。
He hasn't cleaned his room for months.
他有好几个月没打扫他的房间了。
She still hasn't finished her work.
她的工作还没做完。
She found she hadn't finished her homework.
她发现她还没有做完作业。
4. had better的用法
You had better stay at home.
你最好待在家里。
You had better do a little hard thinking.
你最好仔细想一下。
You had better ask about your neighbor.
你最好打听一下邻居的情况
You had better learn one unit every day.
你最好每天学一个单元。