1 . 阅读下面的短文，掌握其大意，从方框中选择适当的词或词组填空。

meeting, digital identities, concerns, a risk, a selection of, in a positive light, creativity, experiment with

Avatars are    1    that you use to represent yourself online. You can choose an avatar from    2    ready-made images, or create your own images. Although avatars haven’t been around for long, they are widely used.

Avatars let you express yourself and give you room for    3    . People usually make their avatars look better than they do in real life. They also    4    things like different hairstyles—which says a lot about what they want to look like. But the use of avatars has also caused a few    5    . Some users worry that they are spending too much time in virtual worlds that they are becoming afraid of    6    people in the real world. The use of several avatars can also be    7    , as people can use avatars to cheat others online. However, many people see avatars    8     They look forward to a time when their avatar will act like a real person and travel around bigger, more exciting virtual worlds.

2 . Directions: Complete the following sentences by using the proper form of the words or expressions given in the frame. Each one can only be used once.

Why your Password May Not Be As Safe As It Seems?   Does “qaz2ws” strike you as a nice safe password? What about “adgjmptw”? An analysis has found them to be among the passwords that are most     1     used, which of course means they are not secure at all.

When ten million passwords were leaked on to the internet，they appeared to     2    that attempts by internet security experts to make us improve our password strength had been successful, even if, in the specific case of the leaked passwords, they are also completely pointless.

While many of the passwords were still single words, such as “password”，there was also a clear attempt by many to make them harder to    3    . The problem was that people seemed to do so in the same way.

“Users are becoming slightly more     4    what makes a password strong,” explained WP Engine, an internet company that performed the analysis. “For instance, adding a number or two at the end of a text phrase. That makes it better, right?”

But     5    no. They found that almost half a million passwords did this and in 20 percent of those all people did was put the number “1” at the end.

Perhaps this is why some companies are now trying to move gradually beyond passwords. Yahoo! is giving users the option to     6     their mobile phone with an account, having a single use passwords texted to it each time they want to log on.

Although the serviced is voluntary, Dylan Casey an executive at Yahoo!，said that it was “the first step to    7    passwords”. He said it was a(n)    8    that it was increasingly hard for people to remember all the passwords they had. “I don’t think we, as an industry, have done a good enough job of putting ourselves in the shoes of the people using our products,” he said.

It would certainly be a more sensible strategy than same people’s improving upon “password” by using “password” or，“tran5p053d numb3r5 for 133tr3r5”.

“We are, for the most part，predictably    9    when it comes to choosing passwords, despite a decade of warnings from password strength checkers during sign-ups” said WP Engine. “We love taking a(n)     10    , and so do password crackers.