The life in the past was different from we have now.Thanks to the rapid development of the science ,we can surf the Internet freely nowadays.Besides,the diversity of our food is rich compared with the past when we didn't have much food to eat .In addition,there were not many TVs to watch in our families ,but now every family has a TV.
The cities didn't have so many cars in the past,and now the cities are filled with all kinds of cars.But it causes much pollution to our fresh air for us to breath.We can get ill more easily than before and we should protect our environment.
In a word,we benefit a lot than before and we are leading a happier life.
太不容易啦.