TASK 1
是比较3个国家65岁以上人口的百分比，并预测到2040年持续上升。是3条曲线。描述关键词是FLUCTUATION。

Task2:
some information in films ,books and on the internet has bad influence on young people and even on society.some think suchinformation should be controlled.
give you opnion on both sides of view ,use your own experience and examples