Now more and more people buy and sell things on the Internet. They buy and sell goods to make money. So hackers(黑客) around the world are interested in this.

Hackers are often young people who love computers greatly. They use computers to get on the Internet, looking for ways to go into computer systems run by banks, homes and all kinds of offices. If they go into a computer system, they will find other people's credit cards and try to steal the numbers. With the numbers they can take the money out of the bank.

Hackers often break into your computer system, but it's difficult to find them. So it is also difficult for you to find the hacker who is taking your money out of the bank. Hackers can get the money from a bank with the credit card number they have got from your computer.

Scientists always ask people who have computers to pay attention to hackers. They also tell people how to fight the hackers. The answer is to choose a clever password(密码) and change it often and not to show your credit card out to anybody. If you are not careful, it's just like keeping the bank door wide open.

1.The underlined word “this” refers to .

A.helping others on the Internet B.buying and selling things on the Internet

C.saving money on the Internet D.giving money to others

2.Which is NOT true about hackers?

A.They are often young people. B.They look for ways to go into computer systems.

C.They love computers greatly. D.They steal money from other's computers.

3.It's to find the hackers who break into your computer system.

A.easy B.nice C.hard D.wrong

4.Which of the following is NOT about protecting the credit card?

A.Choosing a clever password. B.Changing the password often.

C.Putting your money into the bank. D.Don't show your credit card out to anybody.

5.What can we learn from the passage?

A.Be careful to use our credit cards. B.We shouldn't use computers often.

C.Don't show your credit card out to anybody. D.We must catch the hackers.

Du Yijun, a 21-year-old Fudan University student, was one of the 36 people who died in the crush on New Year's Eve on the Bund(外滩) in shanghai.

On the night of December31, 2014, a holiday celebration turned into a terrible tragedy. “Overcrowding(过度拥挤) and the failure of the police to contro1 the crowds were the main reasons it happened,” the authorities(官方) said.

For the last three years, light shows on the Bund have been successfully held for New Year's Eve celebrations, but this year the light show was canceled and there were fewer police on hand. But the crowds came anyway. About 300,000 people were on the Bund by 8:30 that evening and more kept arriving until people suddenly became noisy and angry around 11:30. Some people fell on the stairs and were stepped heavily on and died.

In shanghai,the authorities have reacted(作出反应) to the Bund tragedy by canceling big events. But this isn't really necessary. Better planning and better crowd control can make sure the celebrations are safe.

However, if you’re going to a place where there will be a big crowd, you should take notice of where the exits(出口)are, and if there are too many people, move away from the center of the crowd. And most importantly, if the crowd seems too big and makes you feel uncomfortable, Just leave. No celebration is worth losing your life over.

1.The underlined word“crush” in the passage probably means“__________” in Chinese.

A.美丽的景色 B.成功的活动 C.拥挤的人群

2.How many people died in the Bund tragedy in Shanghai on Dec. 3l, 2014?

A.21 B.36 C.300,000

3.What caused the tragedy to happen according to the authorities?

A.Overcrowding and the failure of the police to contro1 the crowds.

B.Unsafe exits and small squares to hold enough people.

C.Bad weather and dark lights to guide people to leave.

4.What can we learn from the passage?

A.The celebrations could go successfully if well organized.

B.It’s necessary to cancel all the events to avoid accidents.

C.Not all celebntions were worth losing one’s life.

5.The passage mainly tells us about .

A.the failure of the police to protect people

B.a tragedy happening on the Bund and its 1esson

C.some successful light shows held in shanghai

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