人教版六年级英语下册《Then and now》PPT下载(第4课时)，共19页。Warming upCould you tell us about your change?知识讲解I read a book. It was really interesting.Could you tell me the story?Cavemen often ate raw meat. They didn't cook their food.Now there are many things to help you cook.In 2050, there will be house robots. They will cook, clean and wash the dishes.There were many trees, and there were many clean rivers.Now, there are more and more buildings.We should help the earth now, so birds will have homes and the forests will be healthy and green again.课堂小结Cavemen often ate raw meat. They didn't cook their food.穴居人经常吃生肉。他们不做饭。We should help the earth now, so birds will have homes and the forests will be healthy and green again.我们现在应该帮助地球，这样鸟类将有家，森林将再次健康和绿色。Before humans lived on the earth, whales already lived in the sea.在人类生活在地球上之前，鲸鱼已经生活在海里了。If we change now, whales and humans will have a bright future.如果我们现在改变，鲸鱼和人类将有一个光明的未来。... ... ...关键词：Then and now PPT课件免费下载，.PPT格式； 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。