⑴介紹：1.I have seen the film .I don’t want to see it again.2.I have never visited the
⑴介紹：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歸納：請仔細觀察以上例句,回答下列問題：
1和2表示何意思?
3和4表示何意思?
___________________________________________________________________
以上4個句子的結(jié)構(gòu)是怎樣的?
___________________________________________________________________