1．Senior citizens and people with disabilities will be able to go anywhere in the world ________ hightech cameras ______________to their head.
通过系在头上的高科技照相机，行动不便的老年人和身体有残疾的人就能周游世界。
答案：using；attached
2．________________ what young people think about the future of urban life，a teacher at a university in Texas in the United States asked his students to think how they would run a city of 50,000 people in the year 2025.
为了了解年轻人对未来城市生活的想法，美国得克萨斯州的一所大学的一位老师让他的学生们思考他们将如何管理一个在2025年拥有五万人口的城市。
