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
外研2003课标版《Grammar》优质课PPT课件下载
If I were a bird, I would fly into the sky.
（虚拟条件句）
(真实条件句）
If he had hurried ,he could have caught the train.
If I were to go abroad ,I would go to America.
If I won the lottery
now, I would buy an expensive car.
现在事实相反
过去事实相反
将来事实相反
时 间
If 条件句
主 句
过去
现在
将来
一、If条件句：
时 间
If 条件句
主 句
过去
had done
would
should +have done
could