3、gnore/neglect/overlook2.cheat/fool3.calm/quiet/silent/still4.join/joinin/takepartin/attend词形变化1.ignorevt.忽视ignorancen.无知ignorantadj.无知的2.duskn.黄昏;傍晚duskyadj.昏暗的;黑暗的3.addv. 添加;增加addition n. 加,附加additionaladj. 添加的;附加的重点单词1.upsetadj.心烦意乱的,不安的;不适的vt.(upset,upset)2.concern