Do you feel nervous when you sit a math exam? For most, math can be difficult but new research suggests that it can also cause us physical pain.

Scientists came to this conclusion with an in-depth experiment. They began by finding out how much participants (参与者) fear math. Those participants were asked a series of questions such as how they feel when they receive a math textbook or when they walk into a math lesson.

According to their answers, participants were divided into groups. One group was made up of people who were very afraid of math and participants in the other group were more comfortable with this subject.
　 Both groups were then given either math tasks or word tasks. When a math task was going to come next, a yellow circle would appear but when a word task was soon to come, a blue square would be shown.

Using a brain-scan (扫描) machine, scientists noticed that whenever from Group One saw a yellow circle, their brain would respond（反应）in a way similar to when their body is feeling pain. For example, if they burnt their hand on a hot stove. But they reacted less strongly when they knew that they would be faced with a word task.

However, scientists saw no strong brain response from people in the second group.

“When you are really thinking about it (math problems), your mind is racing and you are worrying about all the things that could go wrong,” explained Ian Lyons from University of Chicago, US, leader of the study. “The more worried people were about the math, the more they activated brain regions that we know are often caught when people experience pain or detect a threat（威胁）.”

More interestingly, the brain activity disappeared when participants actually started dealing with the math tasks. “This means that it’s not that math itself hurts, instead, the anticipation of math is painful.” Lyons said.

According to the study, scientists suggested that things could be done to help students worry less and move past their fear of math, which might mean they perform better in tests.

57.　 What have scientists recently discovered about how people react to math?

A.Most people find it difficult to work out math problem.

B.The fear of math can cause physical pain.

C.They have found out just how much people fear math.

D.They have found out what makes people fear math.

58.The underlined word “anticipation” is closest in meaning to _______.

A.expectation　 　B. understanding　 C. experience　　 D. participation

59.Which of the following statement about the experiment is true?

A. When people are worried, more parts of their brains are activated.

B. Both groups responded the same in the experiment’s word tasks.

C. People might get better results in math exams if they are less worried about it.

D. When participants saw a yellow circle, they felt the same as they got their hands burned.

Recent research from the Pew Internet Project suggests that 90% of Americans aged from 12 to 17 use the Internet, and 51% of those teens use social networks. However, there are many possibleproblems with social networking sites and the teenagers who use them.

Apart from the social advantages, social networking sites can be used to record school research, develop artistic talents and experiment with other forms of subject creation. They provide a way to communicatewith others who share the same interests and to get helpful advice on ongoing projects.
Along with these advantages come some dangers. For example, most social networking sites are open to all, especially MySpace, which is the most popular social network among teens in America. It means that they could be put in unpleasant and frightening situations.
A greater danger is that teens may become objects of the people with secret purposes. The secrecy of some social networking sites makes it easy for dangerous people to find young teens and invite them into dangerous conversations. It’s easy for them to pretend as teens and draw children into dangerous real-world communication as well. Then further hurt might be on its way.
Another danger is identity stealing, which can happen when teens share too much information about their names, dates of birth and locations.
Therefore, it’s very important to make sure teens are safe when they use social networks.
Many of the same rules that work for online chat work for these sites:
※Don’t use your real name.
※ Don’t give out personal information to people you don’t know. A last name and a town
are enough for a bad guy to find where you are.
※ Don’t believe that people are who they say to be.
※ Immediately end any communication that makes you uncomfortable and report it to a
parent.
Only if you are sure of your safety, can you enjoy the fun brought by social networking. Besides, trying to deal with all problems on your own can lead to terrible results. Remember, asking your parents or school officials for help doesn’t mean you are unable to do anything but wiser than many others.                                             
【小题1】How many dangers of using social networks are mentioned in the passage?

A．2.

B．3.

C．4.

D．5.

【小题2】The writer takes MySpace as an example to show that ________.

A．students could be put into unreal situations on the Internet

B．teenagers are facing unknown dangers on the social networks

C．Internet provides more social websites to American teenagers

D．social networks are very popular among teenagers in America

【小题3】We can infer from the passage that ________.

A．the dangers are similar when chatting online and surfing social networks

B．more than half American teenagers aged from 12 to 17 use social networks

C．teens who ask for help are wiser when meeting problems on social networks

D．there are more disadvantages than advantages for teens to use social networks

Recent research from the Pew Internet Project suggests that 90% of Americans aged from 12 to 17 use the Internet, and 51% of those teens use social networks. However, there are many possible problems with social networking sites and the teenagers who use them.
Apart from the social advantages, social networking sites can be used to record school research, develop artistic talents and experiment with other forms of subject creation. They provide a way to communicate with others who share the same interests and to get helpful advice on ongoing projects.
Along with these advantages come some dangers. For example, most social networking sites are open to all, especially MySpace, which is the most popular social network among teens in America. It means that they could be put in unpleasant and frightening situations.
A greater danger is that teens may become objects of the people with secret purposes. The secrecy of some social networking sites makes it easy for dangerous people to find young teens and invite them into dangerous conversations. It’s easy for them to pretend as teens and draw children into dangerous real-world communication as well. Then further hurt might be on its way.
Another danger is identity stealing, which can happen when teens share too much information about their names, dates of birth and locations.
Therefore, it’s very important to make sure teens are safe when they use social networks.
Many of the same rules that work for online chat work for these sites:
※ Don’t use your real name.
※ Don’t give out personal information to people you don’t know. A last name and a town are enough for a bad guy to find where you are.
※ Don’t believe that people are who they say to be.
※ Immediately end any communication that makes you uncomfortable and report it to a parent.
Only if you are sure of your safety, can you enjoy the fun brought by social networking. Besides, trying to deal with all problems on your own can lead to terrible results. Remember, asking your parents or school officials for help doesn’t mean you are unable to do anything but wiser than many others.                                             
【小题1】How many dangers of using social networks are mentioned in the passage?

A．2.

B．3.

C．4.

D．5.

【小题2】The writer takes MySpace as an example to show that ________.

A．students could be put into unreal situations on the Internet

B．teenagers are facing unknown dangers on the social networks

C．Internet provides more social websites to American teenagers

D．social networks are very popular among teenagers in America

【小题3】We can infer from the passage that ________.

A．the dangers are similar when chatting online and surfing social networks

B．more than half American teenagers aged from 12 to 17 use social networks

C．teens who ask for help are wiser when meeting problems on social networks

D．there are more disadvantages than advantages for teens to use social networks

Recent research from the Pew Internet Project suggests that 90% of Americans aged from 12 to 17 use the Internet, and 51% of those teens use social networks. However, there are many possible problems with social networking sites and the teenagers who use them.

Apart from the social advantages, social networking sites can be used to record school research, develop artistic talents and experiment with other forms of subject creation. They provide a way to communicate with others who share the same interests and to get helpful advice on ongoing projects.
Along with these advantages come some dangers. For example, most social networking sites are open to all, especially MySpace, which is the most popular social network among teens in America. It means that they could be put in unpleasant and frightening situations.
A greater danger is that teens may become objects of the people with secret purposes. The secrecy of some social networking sites makes it easy for dangerous people to find young teens and invite them into dangerous conversations. It’s easy for them to pretend as teens and draw children into dangerous real-world communication as well. Then further hurt might be on its way.
Another danger is identity stealing, which can happen when teens share too much information about their names, dates of birth and locations.
Therefore, it’s very important to make sure teens are safe when they use social networks.
Many of the same rules that work for online chat work for these sites:
※Don’t use your real name.
※ Don’t give out personal information to people you don’t know. A last name and a town
are enough for a bad guy to find where you are.
※ Don’t believe that people are who they say to be.
※ Immediately end any communication that makes you uncomfortable and report it to a
parent.
Only if you are sure of your safety, can you enjoy the fun brought by social networking. Besides, trying to deal with all problems on your own can lead to terrible results. Remember, asking your parents or school officials for help doesn’t mean you are unable to do anything but wiser than many others.                                             
【小题1】How many dangers of using social networks are mentioned in the passage?

A．2.

B．3.

C．4.

D．5.

【小题2】The writer takes MySpace as an example to show that ________.

A．students could be put into unreal situations on the Internet

B．teenagers are facing unknown dangers on the social networks

C．Internet provides more social websites to American teenagers

D．social networks are very popular among teenagers in America

【小题3】We can infer from the passage that ________.

A．the dangers are similar when chatting online and surfing social networks

B．more than half American teenagers aged from 12 to 17 use social networks

C．teens who ask for help are wiser when meeting problems on social networks

D．there are more disadvantages than advantages for teens to use social networks

Recent research from the Pew Internet Project suggests that 90% of Americans aged from 12 to 17 use the Internet, and 51% of those teens use social networks. However, there are many possible problems with social networking sites and the teenagers who use them.
Apart from the social advantages, social networking sites can be used to record school research, develop artistic talents and experiment with other forms of subject creation. They provide a way to communicate with others who share the same interests and to get helpful advice on ongoing projects.
Along with these advantages come some dangers. For example, most social networking sites are open to all, especially MySpace, which is the most popular social network among teens in America. It means that they could be put in unpleasant and frightening situations.
A greater danger is that teens may become objects of the people with secret purposes. The secrecy of some social networking sites makes it easy for dangerous people to find young teens and invite them into dangerous conversations. It’s easy for them to pretend as teens and draw children into dangerous real-world communication as well. Then further hurt might be on its way.
Another danger is identity stealing, which can happen when teens share too much information about their names, dates of birth and locations.
Therefore, it’s very important to make sure teens are safe when they use social networks.
Many of the same rules that work for online chat work for these sites:
※ Don’t use your real name.
※ Don’t give out personal information to people you don’t know. A last name and a town are enough for a bad guy to find where you are.
※ Don’t believe that people are who they say to be.
※ Immediately end any communication that makes you uncomfortable and report it to a parent.
Only if you are sure of your safety, can you enjoy the fun brought by social networking. Besides, trying to deal with all problems on your own can lead to terrible results. Remember, asking your parents or school officials for help doesn’t mean you are unable to do anything but wiser than many others.                                             
【小题1】How many dangers of using social networks are mentioned in the passage?

A．2.

B．3.

C．4.

D．5.

【小题2】The writer takes MySpace as an example to show that ________.

A．students could be put into unreal situations on the Internet

B．teenagers are facing unknown dangers on the social networks

C．Internet provides more social websites to American teenagers

D．social networks are very popular among teenagers in America

【小题3】We can infer from the passage that ________.

A．the dangers are similar when chatting online and surfing social networks

B．more than half American teenagers aged from 12 to 17 use social networks

C．teens who ask for help are wiser when meeting problems on social networks

D．there are more disadvantages than advantages for teens to use social networks