问题补充：
任务型阅读
The 30th Olympic host city, London is opening its arms to the world. It is the capital city of the UK .It has the history of 2000 years. Today London is a big city with 7 million people. They are from all parts of the world. Their ways of life are not the same but harmonious(和谐的).Their favorite food is pie and mashed potatoes.
London
The capital 【小题1】of the UK
The 30th Olympic host city
The history of London
【小题2】years
The population (人口) of London
【小题3】million
The ways of life
【小题4】but harmonious
The favorite food
【小题5】and mashed potatoes
city
答案：
(答案→)city
解析：
本文主要介绍的是第30届奥运会主办城市伦敦的一些基本情况。
1.city 从It is the capital city of the UK也可知道是首都。
2.2000 从It has the history of 2000 years知道它有2000年历史。
3.7 从with 7 million people知道伦敦人中是700万。
4.not the same/ different 根据Their ways of life are not the same but harmonious(和谐的)可知生活方面不相同，也就是不同。
5.pie 根据Their favorite food is pie and mashed potatoes可知他们最喜欢的食物是馅饼和土豆。
