Ⅰ.教材活用——根据课文内容完成下面的短文
It is difficult to predict 1.______ the city will look like in the future.2._________ (recent) a teacher conducted a poll to find out 3______ his students would run a city of 50,000 people in 2025.4._____ are some of the ideas：
用户名
密 码
忘记密码 新用户注册
