DoYouKnowBigData(数据)?Manyofushavehadthesame“pleasantsur...

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Do You Know Big Data ( 数据)?

Many of us have had the same “pleasant surprise”. After you mark a song as a favourite on a music app (程序), it suggests songs of the same kind to listen to. In fact, this seemingly magic, mind-reading power depends on data.

Data is no longer only about numbers, But information about almost every part of our lives: where we go, what we do, and our likes and dislikes. Together it is called Big Data.

Big Data makes life more convenient. The smart traffic system in Los Angeles is a good example. It collects real-time traffic data and controls 4,500 traffic lights in the system. If an accident happens, the system will change the lights near there to allow cars to pass quickly.

Big Data can also bring in money. UK’s Tesco encourages its customers to have Clubcards. According to the data collected through Clubcards, Tesco knows their shopping habits and then suggests products on its website. The related app on a mobile phone even guides customers around supermarkets to find what they want and makes suggestions for what they may like.

However, this information-collecting process raises serious questions about how we protect our privacy (隐私). Big business companies like Tesco and governments can collect our private information and use it against our wishes. The laws should be able to protect people’s rights in the Big Data age.

And Big Data shouldn’t be confused with big ideas. Big Data requires you to have data first. That means the data is about what has happened in the past, not what you can imagine happening in the future. What if Albert Einstein lived today and not 100 years ago? What would Big Data say about the theory of relativity (相

对论)? No experiment data could support his idea at the time—that’s why we call it a breakthrough. Another example is school. Big Data can lead to school improvement. But great ideas can inspire teaching and learning in classrooms. That’s what matters.

Though there are side effects, the benefits of Big Data are so big that there’s no going back. We just make the best use of it.

1. After you mark country songs as favourites, the app suggests ________ to you.

A. country music B. rock music C. pop music D. electronic music

2. What are Paragraphs 3 and 4 mainly about?

A. The surprise of Big Data. B. The information of Big Data.

C. The benefits of Big Data. D. The side effects of Big Data.

3. The writer talks about the theory of relativity to ________.

A. introduce the disadvantages of using Big Data

B. stress that big ideas are different from Big Data

C. show that Albert Einstein was a great scientist

D. suggest that schools should depend on big ideas

4. From the passage, we can learn that Big Data ________.