题目内容：

Windows8, apart from Windows95, is the biggest surprise and the only version of Microsoft’s operating system that has been changed from the core（核心）when compared to its former one.

However, a recent study has shown that under 20% of business owners would be willing to upgrade to the new version of Windows. The reason for this remains to be discussed and debated, and we will try to throw light on this research by providing you with some of the most common advantages and disadvantages of Windows8.

Generally speaking, there are a great number of plus sides related to upgrading from Windows7 to Windows8.

Speed—This is the biggest advantage to mention. Boot time has been reported to be up to nine times shorter than that with Windows7.

New passwords—Instead of typing your passwords, Windows8 will let you use gestures on your favorite photos to enter your password. This is not only practical but also extremely cool!

Windows8 experience—Apart from computers, Windows8 will be used on all devices, including smart phones, tablet PCs and so on. Also, owing to the fact that it has been specifically designed with touch screen users in mind, Windows8, besides using keyboard and mouse, will offer a whole new user experience.

However, there are still some disadvantages.

The first one that has to be mentioned is that there is no Start Menu from Windows. Yes, there is no Start button in the lower left corner, and this might be a real puzzle of many Windows users. Also, many users have had a problem to get used to the new interface introduced by Windows8. The biggest problem that is worth noticing is that Windows8 was originally designed for touch screen users, and this may have a bad effect on desktop users who have gotten used to doing everything with the help of their keyboard and mouse.

1.What does “plus sides” in Paragraph 3 probably refer to?

A. Math symbols.   B. Strengths.

C. New rules.       D. Messages.

2.According to the text the greatest advantage of Windows8 is its ______.

A. complex passwords     B. high speed

C. unique experience     D. new interface

3.From the text we can learn that Windows8 ______.

A. no longer requires a password

B. was upgraded from windows95

C. will be popular with desktop users

D. can be used on more than computers

4.Many Windows8 users face the problem that ______.

A. Start Menu is hidden in the lower left corner

B. they have to use fingerprints instead of button

C. keyboard and mouse can’t be used any longer

D. they don’t get accustomed to the new interface