内容正文:
Passage 1(原创)
work call or anyone check
just excite by make bank
In recent years, a kind of digital money, called “Bitcoin”, has been getting more and more attention. Many people are 1 about the way the money works.
Bitcoin is a computer-based currency that doesn't involve (涉及) 2 or governments at all. Instead, it uses a huge network of users connected 3 the Internet to keep track of (跟踪) all the Bitcoin that was ever 4 and how it has been exchanged.
Instead of being stored in 5 one place (like a bank's computers), this information is stored in a huge computer file that's usually 6 the “blockchain” (区块链).
Using Bitcoin, people can pay 7 else, anywhere around the world, with no banks 8 governments involved. And because everyone has the same blockchain that is constantly (不断) 9 and fixed, it's almost impossible to trick the system. So no one can pretend to send money, but really keep it.
Bitcoin has changed the way people think about money and how it 10 . It has used the power of the Internet and the computer to create a clever payment system that solves some important problems.
1. excited 2. banks
3. by 4. made
5. just 6. called
7. anyone 8. or
9. checked 10. works
Passage 2(原创)
tell when they close computer
hard plan big pay special
Thousands of businesses around the world were hit by a ransomware (勒索软件) attack on Friday. The attack is believed to be the 1 ransomware attack ever.
In a ransomware attack, hackers (黑客) use 2 software to get computer files. The attackers promise to unlock the files if they are 3 money. The hackers ask for different amounts of money depending on the companies. Some businesses are asked for about $50,000. Others are 4 to pay as much as 5 million.
The attack began 5 hackers broke into the computer systems of a company called Kaseya. Kaseya sells software to help businesses keep their 6 safe. From Kaseya's systems, the ha