When we go on the Internet，we usually need a web address that ends with a suffix （后缀） such as．com，．net，．org，etc．Did you know that since 1984 only 22 suffixes have been used on the World Wide Web？Now more such suffixes are going to be available．Government bodies，cities，companies，or even a single person will be able to get any suffix they want as long as they'd like to pay $185，000 for it．
A generic top level domain （gTLD） is the suffix on the right of the domain name （域名）．Extensions now include．net，．org，．biz，．name，．tv，etc．，as well as country level domains such as．us for the US，．in for India，and so on．They were designed to show different kinds of website：．biz for business use，．org for non-profit （非营利性的） organizations，etc．
Think of the web address like the name of a person．In the case of www．baidu．com，the suffix"．com"is similar to the last name of a person-of which there are only 22 choices now．The prefix"baidu"is like the first name of a person-which can be taken according to availability．These changes will let you choose not only the first name but also a last name for your website．
As you can see，DNS （Domain Name System） is very important for directing the traffic for business over the Internet．Having the right domain name is important for building brands （品牌） and competing better in the marketplace．The new rules could mean more chances for e-business．
However，gTLDs can mean more costs for companies．Besides protecting their brand，companies may have to deal with cyber squatting（域名抢注）-this is when people have some domain names recorded formally with the purpose of selling them at a higher price．



Which of the following is TRUE of domain names？ ______

A. They are becoming less and less important．
B. Users won't need to pay for these names．
C. There will be more gTLDs for people to choose from．
D. Suffixes like．com and．net have a history of 50 years．

In the last paragraph，the author expresses his ______ ．

A. worry
B. doubt
C. excitement
D. politeness

The purpose of the text is to ______ ．

A. explain what a gTLD is
B. talk about new changes to gTLDs
C. introduce the history of the Internet
D. show how to deal with cyber squatting．