必修5 unit 3 Life in the future
1．(2012·山东高考)My first______of him was that he was a kind and thoughtful young man.
A．expression B．attention
C．satisfaction D．impression
解析：首先了解四个选项的意思。A项表示“表情；表达；词语”；B项表示“注意(力)；专心；关注”；C项表示“满意，满足”；D项表示“印象”。由题干中的关键信息he was a kind and thoughtful young man可推知这是“我”对他的“印象”。句意：他给我的第一印象就是，他是一个和善且关心别人的年轻人。
答案：D
2．(2011·山东高考)They are broadening the bridge to ______ the flow of traffic.
A．put off B．speed up
C．turn on D．work out
解析：考查动词词组辨析。句意：他们在加宽桥面，用以加快交通速度。put off推迟，暂缓；speed up加快速度；turn on打开， 呈现；work out解决，锻炼，设计出。
答案：B
3．(2011·陕西高考)Some insects ______ the colour of their surroundings to protect themselves.
A．take in B．take off
C．take on D．take out
