参考答案

参考范文：

    The bar chart given above reflects the sales changes of online shopping in domestic market over the period from 2006 to 2015. The turnover of e-shopping saw a substantial gain from 24.3 billion in 2006 to 2012.3 billion in 2014. Surprisingly, it is predicted that the figure will continue to soar dramatically to 2551 billion in 2015.

    At least two fundamental factors could contribute to this phenomenon. Firstly, it is convenient for consumers to buy goods over the Internet, for online stores are usually available 24 hours a day, and many consumers have Internet access both at work and at home. Secondly, commodity information is available to consumers. Online retailers will describe products with text, photos, and supplemental information, such as instructions and safety procedures. Some provide advice and help consumers decide which product to buy. 

    Consumers have benefited a lot from e-commerce, but online trading is by no means without its limitations. Hence, we should pay attention to fraud and security concerns. Only in this way can we maximize the merits and minimize the demerits of online purchasing.