句型1：the ＋比较级，the ＋比较级The more one has，the more one wants. 越有越贪。
句型2：... as ＋adj./ adv.＋as ...…not as(so) ＋adj. / adv. ＋as ...Do you think that art is as important as music？你认为艺术和音乐一样重要吗？Last Sunday the weather was not so wet as it is today. 上个星期天的天气不如今天的天气潮湿。
句型3：more/ less ＋adj.＋than...I think art is less important than music. 我认为艺术不如音乐重要。
句型4：stop…from doing sth.The Great Green Wall will stop the wind from blowing the earth away. 绿色长城将阻挡风吹走土壤。
句型5：both ... and ...Both you and I are students. 我和你都是学生。
句型6：either ... or...Either you or he is wrong . 不是你错就是他错。
句型7：neither ... nor ...Neither he nor I am a student. 我和他都不是学生。
