题目内容：

    Big data (数据) is a lot of sets of information that are put together so they can be used by a computer program. The computer program looks for different kinds of answers or patterns in the data. Big data can have different kinds of information from many sources, such as information that comes from schools, social media sites, companies and governments.

Big data can be used in many ways. The government uses it to understand how many people travel on buses or trains. This information is then used to make bus or train systems better. Some schools use big data to understand which children may need extra help in class. The teacher can then give certain students more help or support so those students can succeed in school. 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. Big data can also be used for bad reasons can be used to predict which kinds of people probably break the law or hurt others, even if they have not done anything wrong

How can big data be used for good and bad thing? It is because the computer programs which are used to look at big data and understand it are written by people. People think a certain way and build a model of the 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.

An 1.to Big Data
The meaning of big data	It is many sets of information that are put together so they can be used by a computer program. And it can have different kinds of information from many sources.
Usages of big data	●The government uses it to do researches on how many people use 2.like buses or trains to improve bus or train systems. ●Some teachers use it to know who may need extra help in class so that they can help or support the students more in school. ●Companies use big data to understand their 3.habits.
Reasons for using big data	●On the one hand, hospitals use it to make 4. about the health conditions of babies who are born too early. And the hospitals can take better care of them. ●On the other hand, it can be used to predict which kinds of people probably break the law or hurt others, even if they have not done anything wrong.
Conclusion	Big data has been widely used nowadays. It can be helpful, but sometimes, It can also cause problems. That 5. the ideas of the people who write the computer programs.