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Many of us have had the same "pleasant surprise".After you mark a song as a favorite on a music app(程序),it suggests songs of the same kind to listen to (1)    

   Big data(数据)is a lot of sets of information that are put together so they can be used by a computer program.It can have different kinds of information from many sources(来源),such as information that comes from schools,social media sites,companies,and governments. (2)    Another set can have what they like,where they go to school,and how much time they spend on the computer.

   (3)    The government uses it to understand how many people travel on buses or trains.The information is then used to make bus or train systems better.Companies use big data,too.It helps them understand who buys their products.For example,one company uses weather data to see when people eat the most ice﹣cream.

   Big data can be used for good reasons.Some hospitals use big data to predict if a baby who is born too early will get sick.The hospital can then take extra steps to take care of that baby so he or she does not get sick. (4)    It can be used to predict which kinds of people are likely to break the law or hurt others,even if they have not done anything wrong.

   (5)    It is because the computer programs used to look at big data and understand it are written by people.People think a certain way.Because they think a certain way,they build a model of those ideas.These ideas are then used to look at the data.Sometimes,these ideas are helpful for people or businesses.Other times,bad ideas can cause problems for certain groups of people.

A.

Big data can be used in many ways.

B.

Why do we use big data for bad things?

C.

Big data can also be used for bad reasons.

D.

How can big data be used for good and bad things?

E.

One set of data can have people's names and addresses.

F.

In fact,this magic,mind﹣reading power depends on data.

科目 英语   题型 阅读理解   难度 中等
知识点: 科普知识类阅读 任务型阅读
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相关试题

Writing a good story is no easy task.What’s the secret? Mo Yan, a Nobel Prize winner in literature, believes his success comes from a large amount of reading.
Mo was born into a farming family in a village in Shandong Province.He grew up listening to folk (民间的)stories about gods, spirits and foxes.Those stories later became the inspiration (灵感) for Mo’s writing.
Mo left school at the age of 12 and started to work in the fields.Although he was tired after his daily hard work, Mo was always hungry for books.However, there were very few in the village.He read his elder brother’s textbooks and even dictionaries.He helped others with farm work in exchange for books.
After Mo left his hometown and joined the army in 1976, he began to read widely, including works by Lu Xun and many other famous writers.
He studied from these writers but did not copy them.Instead, he developed his own style.“I grew up in an environment filled with folk culture.It enters my novels whenever I pick up a pen.This has affected, even decided, my style,” Mo told a group of reporters in his hometown shortly after he won the award in 2012. As the first Chinese citizen to win a Nobel Prize in literature, the organization spoke highly of his works.They described his writing as a mixture of fantasy and reality, combining historical and social perspectives (看法).

Mo Yan, the first Nobel Prize winner in literature
The process of Mo Yan’s growth
He was born in a village and his parents are both
After leaving school at the age of 12, although he couldfind any books to read, he never gave up.
In the army, he read works such as Luxun’s and other famous writers’ tohis own style.
In, he won the Nobel Prize for literature.
The features of Mo Yan’s works
Folk stories Mo Yan plenty of inspiration no matter when he writes.
His writing is a of fantasy and reality
Theof MoYan’s success
The environment of folk culture matters a lot to his success.
is Mo Yan’s secret to be a great success.

Food waste has become a big problem in China.According to Xinhua News Agency, the food waste by Chinese people equates to about 50 million tons of grain every year or 10 percent of the country’s total annual grain production.This food could feed another 200 million people.
Qi Haoran, a Junion9 student was quite busy over the past winter holiday, and not just with homework.Qi, together with 10 other classmates made a volunteer group to call on people to join the Clean Your Plate Campaign(“光盘行动).
The 11 students went to many restaurants and told people the importance of saving food.“Excuse me, do you know that 950 million people around the world still haven’t got enough to eat.Please don’t waste food.” They would say this kind of thing hundreds of times every day.
The Clean Your Plant Campaign began on the Internet in January.It calls on people to reduce food waste.
Chinese people are well known for being hospitable(好客的)and generous.Many even feel that they lose face if their guests have eaten all the food.
Luckily, the campaign has got the support of many people.More than 750 restaurants in Beijing have begun to offer smaller dishes and encourage their guests to take leftovers(剩饭剩菜)home.In a restaurant in Xinjiang, the owner give the guests who have eaten all that they ordered a sticker.People can enjoy a free meal when they have 10 stickers.
To reduce food waste is a big task, and it needs time.It’s important that everyone does their bit ,just like Qi.Did you finish your meals today?

The Clean Your Plate Campaign calls on people to________.

A.do voluntary work
B.work part time in restaurants
C.cut down on food waste
D.wash your plates after dinner

From the passage, we leant that _______

A.wasting food isn’t a serious problem in China at present
B.Chinese people waste the most food in the world
C.Chinese people want to show off that they are rich
D.many Chinese people are afraid of losing face at the table.

What did the restaurant in Xinjiang do to support the campaign?

A.The owner would have dinner with those who had eaten up their food.
B.It offered a free meal to the guests who had finished all their food ten times.
C.It gave stickers to the guests who ordered small dishes.
D.It encouraged customers to take leftovers home.

Where can we probably read this passage?

A.In a newspaper. B.In a traffic report.
C.On a health website. D.In a story book.

C
Kindergartens(幼儿园)may teach you very important things you need to know.Dancy, a 5-year-old boy, saved his father’s life with the skills he learned.
The boy’s father became seriously ill on the way home from a father-son shopping.He couldn’t speak and could hardly move, but he tried hard to stop the car safely.At that point, Dancy used his father’s phone to call his mother for help.The 5-year-old boy tried his best to give her useful information and he was able to tell where they were.Just as he had learned in the kindergarten, Dancy read the letters he saw on a nearby store sign: “F,U,R,N,I,T,U,R,E.” But that wasn’t enough for his mother to find them.Then he added that they were near a bridge.Finally, his mother understood he was talking about a store called Furniture 22 on New Jersey’s Route22.The mother called 911 and the father was saved in time.
“He just thought his dad needed help,” Dancy’s mother told the reporter.She also pointed out that her husband was a hero, too.“ It is surprising for him to get off the highway ( 高速路 ) and get himself and his child to safety even when he was so sick,” she said.
Shine, head of the kindergarten, felt proud of his pupil.“ Dancy’s spelling skills helped him seize the moment,” he said.“And that’s the real value (价值) of education.”
When the father became seriously ill, he and his son were ________.

A.on the highway B.at home
C.in a shopping center D.in a hospital

Dancy called ________for help when his father couldn’t speak.

A.his mother B.911
C.Shine D.the reporter

The Chinese meaning of the word “seize” in this passage is probably“________”.

A.成功 B.抓住 C.救援 D.失去

Which of the following is TRUE according to the passage?

A.Dancy drove his father home
B.The reporter was really a hero.
C.Shine sent Dancy’s father to hospital
D.Dancy saved his father with his spelling skills.


Canadian school buses are called “the safest school buses in the world”.All the school buses,which are in deep yellow,have the same style.School bus drivers have to receive strict training before getting driver’s licenses.
When a school bus runs through the city and carries children to a stop, the driver will turn on the red light and then show the sign “Stop”.At this time,all the vehicles(车辆)following the school bus must stop as if they met a red light.After all the children get on or off,the school bus will drive away.Then other vehicles can go on.

Many people will think of cartoons as soon as they talk about Japanese school buses.For a long time,cartoon pictures on school buses have already been popular and become models of Japanese school buses.When children see pink Hello Kitty or blue Doraemon, no one will refuse to go to school any more.
On Japanese school buses,there’s always a headman caring for kids.If something happens suddenly,the headman will tell parents about it as soon as possible.

The color of Canadian school buses is

A.red B.yellow C.pink D.blue

From the passage, we know that.

A.Canadian school buses must have a headman
B.Canadian school buses should follow other vehicles
C.Japanese school buses may look cute
D.Japanese school bus drivers can get licenses easily

The passage is written mainly to________.

A.introduce school buses in Canada and Japan
B.suggest schools choosing better school buses
C.welcome students to Canada and Japan
D.ask students to obey traffic rules

This will offer you some information about our school library.You can use this guide to help your kids use our library.
Service hours:3:00 pm—5:30 pm on school days;8:30 am—11:00 am on weekends
On school days, your kids may borrow or return books during opening hours only when his classroom teacher allows him to.At the weekend, our library is open to both you and your kids.
Borrowing
Each student can borrow one or two books at a time: More books can be borrowed only for class reading activities and school research.
Returning:
Books borrowed from the library can be kept for 15 school days.The books must be returned before the due (到期的)date or the kid can not borrow other books.
Damaged(受损的) or Lost Books
When a book is returned in a damaged condition, the kid will have to pay three dollars for the damage.Full price must be paid if a book is lost.We encourage students to carry their library books in plastic bags to protect them from rainy weather.
Please call us at 3362—1323 for more information.
Students can borrow more than two books at a time__________.

A.for sending exams
B.to do school research
C.for after-school activities
D.to read together with their parents

________must be paid when a student loses the book he borrows.

A.Three dollars
B.Half the price of the book
C.Full price of the book
D.Twice the price of the book

The students are advised to _________to prevent rain.

A.carry their library books in plastic bags
B.cover their library books with raincoats
C.put their library books into their pocket
D.keep their library books in their classroom

This library guide is for_______.

A.teachers from Wildwood
B.workers in Wildwood School Library
C.visitors to Wildwood School
D.parents of the Wildwood School students

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