如电子书籍是否能取代传统书籍，就可从电子书籍客观利弊来分析是否可替换
考题：TV，internet and radio are very popular nowadays. Some people say that they will replace books and written words as the main source of information. To what extent do you agree or disagree?
Argue for
优势：
1. the fastest and most effective way of obtaining information
2.we can get information on TV and in the Internet instead of buying newspapers and going to libraries, which saves time and money.
3. informative/ have super capacities to save information. On the contrary, the capacities of books are limited
ARGUE against
劣势：
1. people can not use the electronic media without equipment such as computers and TV sets; however, books are portable.
2. books and written words having more than 3000 years history are more mature than electronic media
3. no good for protecting the copyrights.
4, People often criticize TV for showing too much sex and violence
