亲爱的同学们，以下是根据19年考研英语作文题目原创的最佳答案：
Dear friends,
As we all know, the Internet has brought about significant changes in our lives. It has become an integral part of our daily routine, influencing almost every aspect of our existence. In this essay, I will discuss the positive and negative impacts of the Internet on our lives.
On the one hand, the Internet has greatly facilitated our lives. We can now access a vast amount of information in a matter of seconds, which has revolutionized the way we learn and work. For instance, online courses have made it possible for people to acquire new skills and knowledge without leaving their homes. Moreover, the Internet has made communication more convenient and efficient. We can now stay in touch with our loved ones no matter where they are in the world.
On the other hand, the Internet has also brought about some negative consequences. One of the most significant drawbacks is the excessive use of electronic devices, which can lead to physical and mental health issues. Additionally, the Internet has become a breeding ground for cyberbullying and misinformation, which can have detrimental effects on individuals and society as a whole.
In conclusion, while the Internet has undoubtedly brought about numerous benefits, it is crucial that we use it responsibly and be aware of its potential drawbacks. Only by doing so can we fully harness the advantages of the Internet while minimizing its negative impacts.
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