Unit 3
Life in the future
关键单词
aspect
impression
impress
1．________ n．方面；层面
impressive
        2．_____________ n ．印象；感想；印记→_________ vt.给某人深刻印象→____________ adj.给人深刻印象        3．__________ adj.时常发生；连续不停→_________
adv.不停地
constant
constantly
previous
4．________ adj.在前；早先
uncertain
5．________ adj.不确切；无把握→________ adj.确切
；有把握→________ n．确切；有把握
certain
certainty
6．_______ n.指导；向导；导游
vt.指导；指导→_________
n．指导；指南
guide
guidance
surroundings
7．______________ n．周围事物；环境→______________
adj.周围→___________ vt.围绕
surrounding ...