请根据下面两幅图画用英语写一篇短文，描述自己家乡的变化，并谈谈自己的看法。
注意：
1．词数：100左右；
2．可以适当发挥，以使短文连贯；
3．开头已为你写好，不计入总词数。
This summer, I went to my hometown and found it changed a lot．
In the past, __________________________________________________________________
_______________________________________________________________________________
This summer, I went to my hometown and found it changed a lot．
In the past, my hometown was a very beautiful one．A river running through our village used to be very clean with many fish in it．Tall and straight trees, beautiful flowers and green grass could be seen everywhere．People lived a poor but simple life．
Nowadays, however, with the development of modern society, people are living a “happy” life．Many tall buildings are found on both sides of the river, but the river has been badly polluted．More boats can be seen on the river, but there are few fish swimming in it．The living environment is becoming worse and worse!
I think it’s time that we should take action and do something to protect our living environment．