I’d like to look at a vital aspect of e-commerce, and that is the nature of the product or service. There are certain products and services that are very suitable for selling online, and others that simply don’t work.
Suitable products generally have a high value-to-weight ratio.【Q23】 Items such as CDs and DVDs are obvious examples. Books, although heavier and so more expensive to post, still have a high enough value-to-weight ratio, as the success of Amazon, which started off selling only books, shows. Laptop computers are another good product for selling online.
Products which are potentially embarrassing to buy also do well in the virtual environment. Some of the most profitable e-commerce companies are those selling sex-related products or services. For a similar reason, online gambling is highly popular.
Products which are usually considered unsuitable for selling online include those that have a taste or smell component.【Q24】Food, especially fresh food, falls into this category, along with perfume. Clothes and other items that need to be tried on such as diamond rings and gold necklaces are generally not suited to virtual retailing, and, of course, items with a low value-to-weight ratio.
There are exceptions, though. Online grocery shopping has really taken off, with most major supermarkets offering the service. The inconvenience of not being able to see the food you are buying is outweighed by the time saved and convenience of having the goods delivered. Typical users of online supermarkets include the elderly, people who work long hours【Q25】and those without their own transport.
23 What is important to the success of an online store?
A) The guaranteed quality of its goods.
B) The huge volume of its annual sales.
C) The service it provides to its customers.
D) The high value-to-weight ratio of its goods.
24. What products are unsuitable for selling online?
A) Those having a taste or smell component.
B) Products potentially embarrassing to buy.
C) Those that require very careful handling.
D) Services involving a personal element.
25. Who are more likely to buy groceries online?
A) Those who live in the virtual world.
B) Those who have to work long hours.
C) Those who are used to online transactions.
D) Those who don’t mind paying a little more.
這是Johan Rockstrom的演講，主題是“Let the environment guide our development”?？返諞瘓渚腿萌司押蛻釧跡?ldquo;We live on a human-dominated planet, putting unprecedented pressure on the system on earth.” 地球面臨?；?，挑戰與機會并存。簡要介紹地球發展史之后，視頻部分的重點是講人類出現后地球遭受的四重壓榨（quadruple squeeze）。聽的過程中，注意幾個反復出現關鍵詞“planet/ phase/crisis/pressure/squeeze”，以及表邏輯思路的but/because/so/first/second/third等詞，就容易抓住講座要點。