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--Oh, he ____ ____ to Beijing. （他到北京去了。）
Brainstorm：
你能说出现在完成时常见的标志词吗？
Review
already yet ever never just
I have called you，but you weren’t in.
I have been there before.
It has reached 1.37 billion.
Have you found him ?
Have you been to the cinema nearby?
Self-check （预习检测）
街区
游客
数以百万的
美术家，艺术家
工业，行业
化学
学期
事实上
What took place in New York?
1b Listen to 1a and tick what was mentioned about New York.
In the past
terrible traffic
dirty streets
unfriendly people
dangerous to live
less shopping centers
Nowadays
beautiful parks
clean and fresh air