Unit3,Life in the future,jet,guide,实物识词,tablet,capsule,stewardess,mask,carriage,belt,switch,timetable,mud,desert,typist,typewriter,button,dustbin,receiver,impression n. 印象；感想；印记 constant adj. 时常发生的； previous adj. 在前的；早先的 guide n. 指导；向导；导游 vt. 指引；指导 surroundings n. 周围的事物；环境 surrounding adj. 周围的 lack vi. as a result, they hated attending my class. I felt upset. One day，an English sentence made a strong _ (impress) on me, which was “Never frown(皱眉), because you never know who is falling in love with your smile”. Those words inspired me in _ instant. With smiles, I am now _(optimism) about my job and my life. It guides me _ a completely new life.,up,The,was impressed,surroundings,was surrounded,constantly,gone,for,impression,an,optimistic,to,Thank you for your attention !,