1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
Yes, I have./No, I haven’t./No, never.
zoo
Have you ever been to …?
Yes, I have. / No, I haven’t. /No, never.
space museum
Have you ever been to …?
Yes, I have. / No, I haven’t. /No, never.
water park
Have you ever been to …?
Yes, I have. / No, I haven’t. /No, never.
Amusement
park
Have you ever been to …?
Yes, I have. / No, I haven’t. /No, never.
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.
Grammar Focus
现在完成时 （Present perfect tense）定义：
表示过去发生或已经完成的某一动作对现在造成的影响或结果。
构成：1、现在完成时的肯定句式是“have (has)＋过去分词”。
注意：该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。
2、现在完成时的否定句式是 “haven’t（hasn’t）＋过去分词”。