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unit one  social issues
  section ¢¡  listening & speaking
  section ¢¢  passage one
    let's marry to keep the love going
  section ¢¢  passage two
    becoming a mortgage slave or not
  section ¢£  grammar
    infinitive £¨²»¶¨Ê½£©
  section ¢¤  writing
    invitation card/letter £¨Çë¼í£©
  section ¢¥  enjoy yourselves
unit two  life experience
  section ¢¡  listening & speaking
  section ¢¢  passage one
    the art of living
  section ¢¢  passage two
    7 ways to find out what you really want in life
  section ¢£  grammar
    participle £¨·Ö´Ê£©
  section ¢¤  writing
    business card £¨ÃûƬ£©
  section ¢¥  enjoy yourselves
    funny pictures
unit three  environment
  section ¢¡  listening & speaking
  section ¢¢  passage one
    healthy lifestyle helping to protect the environment
    context clues to word meaning
  section ¢¢  passage two
    protection of the environment
  section ¢£  grammar
    gerund £¨¶¯Ãû´Ê£©
  section ¢¤  writing
    note for leaving £¨Çë¼ÙÌõ£©
  section ¢¥  enjoy yourselves a joke
unit four  transportation
  section ¢¡  listening & speaking
  section ¢¢  passage one
    the impact of high-speed rail on civil aviation"
  section ¢¢  passage two
    children say they prefer daddy to drive
  section ¢£  grammar
    noun clauses £¨Ãû´ÊÐԴӾ䣩
  section ¢¤  writing
    poster £¨º£±¨£©
  section ¢¥  enjoy yourselves
    the origin of hot dogs
unit five  science & technology
  section ¢¡  listening & speaking
  section ¢¢  passage one
    wash.u.scientists discover mind-reading
  section ¢¢  passage two
    exploring 3d technology: from cinema to home
  section ¢£  grammar
    attributive clause £¨¶¨Óï´Ó¾ä£©
  section ¢¤  writing
    certificates £¨Ö¤Ã÷£©
  section ¢¥  enjoy yourselves
    chinese term
unit six  history
  section ¢¡  listening & speaking
  section ¢¢  passage one
    150th anniversary of the u.s.civil war
  section ¢¢  passage two
    american history lessons
  section ¢£  grammar
    adverbial clause £¨×´Óï´Ó¾ä£©
  section ¢¤  writing
    advertisement £¨¹ã¸æ£©
  section ¢¥  enjoy yourselves
       lines in the film of "the spy next door".
unit seven  literature
  section ¢¡  listening & speaking
  section ¢¢  passage one
    three days to see
  section ¢¢  passage two
    about reading books
  section ¢£  grammar
    inversion £¨µ¹×°£©
  section ¢¤  writing
    business letter £¨ÉÌÎñÐź¯£©
  section ¢¥  enjoy yourselves
    a poem
unit eight  news
  section ¢¡  listening & speaking
  section ¢¢  passage one
    meet disney characters in shanghai
  section ¢¢  passage two
    migrants to be quiz