⑴介绍：1.I have seen the film .I don’t want to see it again.2.I have never visited the⑴介绍：1.Ihave seen the film .I don’t want to see it again.2.I have never visited the USA.3.Have you answered all the questions?4.Have you ever been t
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⑴介绍：1.I have seen the film .I don’t want to see it again.2.I have never visited the⑴介绍：1.Ihave seen the film .I don’t want to see it again.2.I have never visited the USA.3.Have you answered all the questions?4.Have you ever been t
⑴介绍：1.I have seen the film .I don’t want to see it again.2.I have never visited the
⑴介绍：1.I
have seen the film .I don’t want to see it again.
2.I have never visited the USA.
3.Have you answered all the questions?
4.Have you ever been to the Great Wall?
⑵归纳：请仔细观察以上例句,回答下列问题：
1和2表示何意思?
3和4表示何意思?
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以上4个句子的结构是怎样的?
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⑴介绍：1.I have seen the film .I don’t want to see it again.2.I have never visited the⑴介绍：1.Ihave seen the film .I don’t want to see it again.2.I have never visited the USA.3.Have you answered all the questions?4.Have you ever been t
1我看过这部电影了但我再也不想看第二遍 have +过去分词 现在完成时 做过某事
2我从没去过美国 have+否定词+过去分词 现在完成时的否定
3你答完所有问题了吗?
4你曾经去过长城吗?
3、4是现在完成时的疑问句
综上 上边四个句子考察现在完成时
1，我曾经看过这部电影，不不想再去看了。
2，我从来没有去过美国。
3，你回答过这所有的问题了吗？
4，你曾经去过长城吗？
以上句子用的是现在完成时。