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现在完成时常与时间副词already, never, ever, just, before, yet等连用。
探究点一 Grammar Focus
Have you ever been to a science museum?
Yes, I’ve been to a science museum./
No, I’ve never been to a science museum.
Have you ever visited the space museum?
Yes, I have. I went there last year./ No, I
haven’t.
I've been to the art museum many times.
Me, too. And I've also visited the nature museum.
I've never been to a water park.
Me neither.
比较：He has been to Beijing.
他曾去过北京。
（人已回来，可能在这儿）
He has gone to Beijing.
他已经去北京了。
（人已走，不在这儿）
have / has been (to) 表示“曾经到过某地”，说话时此人不在那里，已经回来。侧重指经历。
have / has gone (to) 表示某人“已经去某地了”，说话时此人可能在路上或已到那里，反正不在这里。
I. Have gone to ,have been to 填空
1. My parents _______ Nanchang. You can find them there.
2. The boys _______ Japan lots of times.
3. Has your sister gone to the bookstore? (作肯定回答)
_______, she _______.
4. I have been to the theme park three times. (对划线部分提问)
_____ ______ times have you been to the theme park?
Quiz
4a
Put the correct forms of the verbs in the blanks.