UNIT 4 JOURNEY ACROSSA VAST LAND 课前基础自查——上承课前，下启课堂 Ⅰ.单句语法练 1.A number of high buildings 　　　　(arise) where there was nothing a year ago but ruins.  2.To our regret, priceless 　　　　(antique) were destroyed in the fire.  3.　　　　(idiom) are one of the h...