范文三 190 words
         The society has hundreds and thousands of fake commodities. They are almost everywhere. They are in daily life, hospital, supermarkets, and so on.
        Why do we have these fake commodities? This question has not only attracted the interests from the scientists but also from the general public. Generally three reasons have been given to explain this phenomenon. First of all, fake commodities are usually profitable. They are lower in cost and of course, in quality, but are high in price. Secondly, the society often finds it hard to help consumers to tell fake ones from the genuine goods. Third, legal restrictions against fake commodities are not work at all or work with lower efficiency.
        
         Fake commodities do harm to the human life. They can damage the life or ruin one’s happiness, depending on what kind of fake commodities consumers have bought. They can also damage the society as a whole if the fake commodities are not restricted by governments or other agencies. Fake medicines are a typical example. Today, even in the field of academic, fake papers are not uncommon. All these fake commodities exert negative impacts on human civilization.
        
         范文四 ： 258 words
         Fake commodities seem to flood into each corner of daily life. Worse they even stream into academic institutions evidenced by the fact that some professors plagiarize papers. We have fake clothes with brand name. We have fake medicines which are openly sold in hospitals. We also have some fake computers and TV sets. In one word, fake commodities are almost everywhere.
        
         Then we naturally ask: Why do fake commodities flow into the supermarkets? The flood is so overwhelming that both the sociologists and the general public have to dig the root reasons. On the basis of scientific research and survey, scholars discover that among the diverse array of contributing factors, the major one is that the society in which the fake commodities are flooding is usually short of an effective legal system to control or guide the markets. Another reason, similarly vital, states that the social and economic order is maintained by, to a considerable extent, ethic and moral. But the moral and value system becomes fragile when subject to a market characterized and dominated by the cold cash. Economic models have been put forward to provide theories to account fro why fake commodities can negative influence a society to such an extent. Of courses many other reasons also play their roles.