首字母填空
　　Earth and Nature(1~15)
　　People and Life(16~30)
　　Food and Health(31~45)
　　Cities and Traffic(46~60)
　　Sports and Recreation(61~75)
　　Cultures and Customs(76~90)
　　Relationships and Communication(91~105)
　　Knowledge and Learning (106~120)
　　Science and Scientists(121~135)
　　Changes and Development(136~150)
选词填空
　　Earth and Nature(151~165)
　　People and Life(166~180)
　　Food and Health(181~195)
　　Cities and Traffic(196~210)
　　Sports and Recreation(211~225)
　　Cultures and Customs(226~240)
　　Relationships and Communication(241~255)
　　Knowledge and Learning(256~270)
　　Science and Development(271~285)
　　Different Fields(286~300)