A new study has found that your device of choice may influence how you make moral decisions when using  it. Researchers have discovered that people who choose a smartphone over a PC are more likely to make reasonable decisions when met with a moral dilemma on their phone.
         Researchers found 1,010 people and gave them a well-known moral dilemma known as “ the Trolley Problem”, where the person was forced to make a choice to save the life of one or a large group of people. Participants are told that an out of control trolley is speeding towards a group of five people that are tied to the tracks – leaving them unable to move out of the way. Here they have a lever that can be pulled to divert the trolley to another set of tracks. However, on the other tracks is another person. If they pull the lever, the five people will be saved, but the one will die. But if they do not pull the lever, the five people strapped to the tracks will be killed.What will you do?
         Another case, which is said to be more personal, has the participants standing on a foot bridge next to a large man. If the participants push the man off the bridge, the train can be stopped,thus saving the five and killing the one.
         The team found that participants in the large man dilemma were more likely to sacrifice the man and save five people when using a smartphone (33.5%) than when using a PC (22.3%). As a result, the study suggests that even under conditions of time pressure, people using a smartphone could make the clever decision-making. “This could be due to the increased time pressure often present with smartphones and also the increased psychological distance which can occur when we use such devices compared to PCs.” the researchers found.

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1.What is the best title of the passage?

A The right way to make the best moral decisions.

B The device you choose influences your decisions.

C The influence of a moral dilemma on their phone.

D A well-known moral dilemma can be well solved.

解析：选B。B 文章标题题。根据第一段主题段可知，文章讲述的是用智能手机的人会做出更加理智的选择，智能设备影响人们做出决定更符合。故选B。

2.Why do the researchers choose “the Trolley Problem”?

A Because the participants will face tough moral choices.

B Because they want to save the life of a large group of people.

C Because the participants are unable to move out of the way.

D Because they know the direction can be changed very often.

解析：选A。A 细节理解题。根据第二段第一句moral dilemma和where the person was forced to make a choice to save the life of one or a large group of people可知要让那些测试者面临道德抉择的困难。故选A。

3.In another case,if the participants pushed the man off the bridge,________.

A five persons will be trapped by the tracks

B one person will be killed

C a large group of people will be killed

D the five persons will save the man

解析：选B。B 细节理解题。根据第三段第二句的If the participants pushed the man off the bridge, the train can be stopped,thus saving the five and killing the one.可知如果参与者把这个人推下桥，火车就会停下来，从而救了五个人，但这个人会死，故选B。

4.What may make less PC users choose to sacrifice the man?

A The reduced psychological distance.

B The increased time pressure.

C The increased psychological distance.

D The improved modern technology.

解析：选A。A 推理判断题。根据最后一段最后一句This could be due to the increased time pressure often present with smartphones and also the increased psychological distance which can occur when we use such devices compared to PCs可知相比于PC使用者，智能手机使用者会体验到the increased psychological distance，可推知PC使用者的心理距离会减少。故选A。