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（We don’t know where Mr Li lives now.）
Mr Li has lived in Shanghai since 1990. 李先生自1990年就住在上海。
（We know that Mr Li still lives in Shanghai now.）
现在完成时标志
for & since
1) Eddie has lived with Millie since 2001.
Eddie has lived with Millie since 4 years ago.
Eddie has lived with Millie since he was born.
since + 过去的时间或动作 （ 词、词组或句子）
2) Eddie has lived with Millie for four years.
for + 时间段
3) 对以上句子划线部分提问:
How long has Eddie lived with Millie?
练习：
1. We have learned English ______ Grade 3 in primary school.
2. We have learned English ______ 5 years.
3. He hasn’t felt well ________ last night. Has he seen the doctor?
4. I have read this story book _______ 3 days ago.
5. It has snowed ______ two days.
6. We have cleaned the room _____ half an hour.
7. We have studied at this school 2003.
8. We haven’t seen each other ______ a long time.
9. His father has been in the Party ______ 10 years ago.
10. The film has been on ______ 20 minutes.
11. Mr Green has worked here ______ he came to China.
12. His grandparents have been dead ______ several years.
13. It’s five years _______ we met last time.
2. already, (not) yet, before, never, ever, just
区别：
1）already意思是“已经”