Music makes life better in many ways.The fact that music can make a difficult task more tolerable may be why students often choose to listen to it while doing their homework.But is listening to music the smart choice for students who want to optimize their learning？A new study suggests that for some students，listening to music is a wise strategy，but for others，it isn't.The effect of music on cognitive（認(rèn)知的） functioning appears to depend partly on your personality — specifically，on your need for external stimulation.
   Researchers not only assessed listeners' personality but also changed the difficulty of the task and the complexity of the music.Participants first completed a personality test used to determine the need for external stimulation.They then engaged in an easy cognitive task （searching for the letter A in lists of words） and a more challenging one （remembering word pairs）.Participants finished both tasks under one of two sound conditions： （1）no music， （2）with music.
   The data suggest that for those with a high need of external stimulation，on the simple task of finding A's，such subjects' scores for the music condition were significantly worse than those for the silent cjye.aiditijye.ai.On the complex task of learning word pairs，their performance was worse whenever music was played.For those with a low need of external stimulation，however，on the simple task of findings A's，such participants' scores for the music condition were dramatically better than those for the silent cjye.aiditijye.ai.On the complex task of learning word pairs，the participants showed a small but reliable benefit when listening to music.
   According to the study，there are substantial individual differences in the impact of music on cognitive function，resulting in personalized recommendations regarding its presence in the classroom.Students who are easily bored and who seek out stimulation should be cautious of adding music to the mix.On the other hand，students with a low need for stimulation may benefit significantly from the presence of music.
   With the right personality，the right music and the right task，the presence of music may significantly improve cognitive functioning.Given the benefits of music，subscription to Spotify just might pay for itself.

（1）What can we learn about the study in paragraph 2？

D

D

A．It only involved the participants' response to music.
B．The difficulty of the two tasks decreased in the experiment.
C．Participants completed two tasks when composing songs.
D．Participants were grouped by their need for external stimulation.
（2）What can we infer from the results shown in paragraphs 3-4？

A

A

A．The complexity of tasks might reduce the benefit of music.
B．Students should listen to music when performing complex tasks.
C．Students with less external stimulation perform badly with music.
D．The presence of music suits students seeking for external stimulation.
（3）What might the underlined word "Spotify" be？

B

B

A．A psychology journal.
B．A music platform.
C．A travel guide.
D．A personality test.
（4）What could be the best title for the article？

C

C

A．Why is music essential in your study？
B．Is music beneficial to your personality？
C．Does music boost your cognitive performance？
D．How can music affect your external stimulation？