Computer is used so widely that nearly all the fields in which we live have been deeply concerned about. Somehow,computer is no longer patent of professional computer engineers. More and more common people even pupils can use computers in their daily life.
Since computers are eonviont, there is a new challenge to primary school teachers: pupils can use computer or scientific calculator in the class of grammar and mathematics instead of doing those coalitions by their own brains. By this children can work out problems quickly but what they have learned is just typing skill not mathematics skill, so I think computer should be banned is class.
In other aspects, computer affects people's daily life and do harm to people. There are many people lost themselves in Internet and the worse, they commit crimes by Internet.
Nearly all the people, from pupils to the old, can get the harm from computer more or less. For this reason, computer should be banned from people's lives.
计算机已被广泛地应用，以致于人们生活的所有领域都与它密切相关．在某种程度上，计算机已不再是专业计算机工程师的专利了．越来越多的普通人甚至小学生也能在日常生活中使用计算机了．
既然计算机如此方便易用，小学老师们就面临了一个新的.挑战，那就是学生们可以在语法和数学课用计算机和计算器代替自己的脑子计算．这样孩子们可以很快地解决问题。但是他们学到的只是打字技巧而不是数学技巧，因此，我认为在课堂上应禁止使用计算机．
在更多的方面，计算机影响着人们的日常生活并产生一些不利因素．有许多人在网络中迷失了自己，甚至更糟的是利用网络犯罪．
从孩子到老人，几乎所有的人都会或多或少地受到计算机的危害．从这一点看，在人们的日常生活中应禁止使用计算机．
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