6、There is no doubt that we have benefited a lot from the internet in our everyday life．We can read news，keep in touch with our relatives，make friends，or play games to relax ourselves on the internet．

But every coin has two sides．The internet also has a bad effect on netizens，especially on us teenagers．Once we open a page on the internet，such things as violence, eroticism, cheating，etc．will appear unexpectedly before our eyes．On one hand，they seriously pollute our heart and soul；on the other hand，children will become confused or addicted to it and gradually lose interest in their study．

The government has realized the serious problems and is taking measures to purify the internet environment．Some web sites that disobey the rules are made public and even closed up．I'm sure we will have a better net environment quite soon.

二、选择题