单选题 Getting a new PC is one thing. Keeping it running smoothly is quite another. While a personal computer should continue to perform well for years, users know that system unsteadiness (不稳定性) does exist. Yet you can reduce it to the smallest amount by following the tips below.
First, put in as little software (软件) as possible. You'll have fewer software-related problems and a system that is easier to manage.
Second, you should ensure (确保) that you have as much memory (RAM) in your PC as you need. If you run Windows 98, your computer should have at least 128 megabytes (MB) of RAM and more. You can also get by with 128 MB of RAM if you use Windows NT or Windows 2000, but these operating systems will run much more smoothly if you have 256 MB of RAM or more.
Third, make sure you buy good hardware (硬件). No-name products may be cheaper and sometimes just as good as name-brand products, but name-brand products usually become well-known because Windows will more often support the hardware that you buy. If you are starting out with computers, it's also a good idea to buy ready- made systems from major manufactures (制造商). They are likely to have been tested thoroughly with your operating system, and you will generally experience fewer problems.
Fourth, do prepare for disaster. No matter how well your system runs when you get it, the day will come when it will need to be replaced. Hopefully (但愿), you will replace it because technology has become out-dated, but you may need to replace it also because the hard drive crashes (毁坏) or you begin experiencing problems that no one can figure out. That's why it's important to copy your important information regularly. Whether you use a tape backup device or a CD-ROM drive, it's important to make a regular backup plan and stick to it.

单选题 If you want to use Windows 2000, but your computer only has 64 MB, what will you have to do?

单选题 Which of the following statements is NOT true?

单选题 How many pieces of advice does the writer give us?

【正确答案】 D

【答案解析】[解析] 本题可以从文中两个地方得到线索。第一段最后一句话“You can reduce it to the smallest amount by follwing the tips below”是承上启下的作用，告诉读者接下来要介绍的儿点建议。另外，由最后一段第一个词“Fourth”可知文中共提及四点建议。因此选项[D]为正确答案。

单选题 It can be inferred from the last paragraph that ______.

【正确答案】 C

【答案解析】[解析] 这是一道推理判断题。由第五段“No matter how well your system runs when you get it，the day will come when it will need to be replaced”“你买的时候无论系统运行得多么好，总有一天它将需要替换”。而选项 [C]的意思是“你早晚都得更新电脑系统”，故[C]为正确答案。

单选题 What is the main purpose of this passage?

【正确答案】 A

【答案解析】[解析] 主旨题。本文中有一句最关键的话，也就是本文的主旨句，它出现在第一段，即“Yet you can reduce it to the smallest amount by following the tips below”。句中的it指的是上一句提到的system unsteadiness。所以，本文的写作意图就是“对如何减小电脑系统的不稳定性”提出一些建议。故答案是[A]。