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作者词汇量积累不错，能较准确地使用学术词汇，单词拼写要仔细；作者句法知识扎实，但文中从句数量稍显不足；行文稍显不流畅，应增加文中衔接词的使用。
The invention of cellphone and internet undoubtedly is the most significant event in the modern era. People benefit considerably from their merits. But meanwhile there are still some potential demerits concealed in the usage of cellphone and internet. Firstly, as the tools of communication, cellphone and internet could be taken advantage by the evil ones. The economic crimes such as frauds are frequently reported by the mass media. And the policemen have to continually warn the public to take good care of their passwords and communication lists in cellphones or on internet. Keep an eye on the strangers contanting you by cellphone or internet. Secondly, with the development of video games, the amount of addictors of such games has increased dramatically in recent years, especially for teenagers. As the platform of such harmful and inducing games, cellphone and internet has played a critical role as conspiracy. Last but not the least is the security concern. There are so many traffic accidents or similar tragedies caused by using cellphone or internet during driving or walking. Not to mension this, there are also some medical dangers caused by these devices, such as radiation. The alleged medical statistics show that there are definite relations between cancer and the overuse of cellphone and computer. So, as far as I am concerned, the usage of cellphone and internet is a thourd with double edges, just like a coin with two sides. We should take best advantages of these communication tools, and try to eradicate the side-effects of them. Not only the government and authority should enhance the surveillance but also the public should increase the awareness of the disadvantage of these modern devices.
