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19.Are you a social media addict?Are you always checking your smartphone to see how many‘likes'you've received for your latest post?Maybe you feel comforted by the notification sound that someone has sent you a message?Don't worry,you're not alone.We check our phones all average of 150times a day,and around 30%of the total time spent online is dedicated to social media.
Some experts now fear this habit could be damaging our mental health.This is something particularly affecting young adults,according to a study from the University of Pittsburgh.It found the more they used social media,the more likely they are to be depressed.The study found that exposure to"highly idealised life of peers on social media causes feelings of envy".Some of us certainly feel sad when we're ignored on social media sites,or when we see someone else having a better time than us.But depression is a more serious condition,which has been getting significantly worse over the last 5-6years.You can get so hooked that it takes you away from your real relationships.Other research by Glasgow University found that those with higher levels of emotional investment in social media,and who use it at night,were more likely to feel depressed and anxious.
Despite these warning signs,why do some of us continue to keep clicking?Well,I suppose we all want to be liked and we don't want to miss out on a conversation that's taking place online.But we need to know when to switch off our virtual online world and connect with the real world instead.

29.According to the passage,what might be damaging our mental health?D
A.Using  smartphones  too frequently   
B.Getting too many'likes'.
C.Longing for more messages.
D.Being addicted to social media.
30.According to the research,people may feel depressed becauseA.
A.they thought others are living a better life
B.they believe they have no real-life friends
C.they are ignorant about social media.
D.they desire to be part of the real world
31.The underlined word"hooked"is closest in meaning toC.
A.depressed      
B.relaxed    
C.addicted
D.embarrassed.

分析 本文是一篇科教类阅读.文章主要介绍了沉迷于社交媒体会危害我们的心理健康.

解答 29-31  DAC
29.D.细节理解题.根据"This is something particularly affecting young adults,according to a study from the University of Pittsburgh.It found the more they used social media,the more likely they are to be depressed."可知沉迷于社交媒体会危害我们的心理健康.故选D.
30.A.推理判断题.根据"The study found that exposure to"highly idealised life of peers on social media causes feelings of envy".Some of us certainly feel sad when we're ignored on social media sites,or when we see someone else having a better time than us."可知人们觉得沮丧是因为他们认为其他人过着更好的生活.故选A.
31.C.词义猜测题.A.depressed  沮丧;    B.relaxed 放松;   C.addicted沉溺于;D.embarrassed 尴尬;根据"But depression is a more serious condition,which has been getting significantly worse over the last 5-6years.You can get so hooked that it takes you away from your real relationships."可知"hooked"意为"沉溺于".故选C.

点评 本文是一篇科教类阅读.此类题型主要考查学生的细节理解和推理判断能力.细节理解题是针对文中某个细节、某句话或某部分具体内容设置问题,所以在做细节理解题时要结合原文和提干有针对性的找出相关语句进行仔细分析,再结合选项选出正确答案.在做推理判断题时不要以个人的主观想象代替文章的事实,要联系上下文根据文章事实进行合乎逻辑的推理判断.

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