Passage One Questions 21 to 25 are based on the following passage. Shopping has become a very secret and mysterious affair. Conspicuous consumption does not look good during a recession, which explains why so many of us are embracinge-commerce. Online shopping on these shores is projected to grow from sales of 8.9bn to around 21.3bn by the end next year. Often people proclaim they’ve embraced e-commerce because it’s “green”. This is understandable. If many shopping bags in a recession look bad, bricks and mortar retail — huge out-of-townshopping centres, retail emporia (大百货店) that insist on leaving their doors open even in winter and grocery stores full of the most inefficient freezers — look terrible during an ecological emergency. Should we buy the idea that e-commerce is any better? Several studies have tried to answer this with cold, hard data. A 2000 study on Webvan, a US online grocer that does not exist anymore, concluded that a wider adoption of ecommerce would not give us environmental gains, while a 2002 study of US book retailing found no greater energy savings selling online. But the study that all e-retailers are talking about is a new one from Carnegie Mellon University, which has found that shopping online via Buy.corn’s e-commerce model for electronic products uses 35 per cent less energy consumption and CO2 emissions than a traditional bricks-and-mortar model. This is largely because it avoids the usual retail distribution model and, of course, the impact of consumers driving to a store. And, from the shopper’s perspective,online buying often allows you to avoid the ephemera (便宜的日常小用品) of retail, like the 100m coat hangers that end up in landfill each year, or lengthened cash register receipts. But both models are flawed, because online or on the high street, retailers are dependent on a hydrocarbon-fuelled delivery system. Trucks deliver 4.8m tons of freight each day in the UK, which works out at about 80kg per person. To make matters worse,after a truck drops off the goods it often returns empty to the storehouse. A 2002 study of 20,000 haulage trips found that only 2.4% of return journey legs found suitable backloads. This journey represents a large part of the impact of what we buy. Online shoppingmay prove marginally greener in terms of energy saving, but we shouldn’t forgetprogressive traditional retail. Places such as Ludlow in Shropshire, a tradetown based on ethical trading ideas, where the independent high street has beenhard earned. It brings consumers face to face with products with a justbackground, shortened supply chain and with values. This is a wiser and widerretail experience; anything else could leave you feeling short changed. Q : According to the first paragraph, people are embracing e-commerce during a recession becausethey prefer _______ shopping.