The Economist_1
正文摘录
Life Online
A growing body of research demonstrates that in young people psychiatric illnesses are linked with heavy consumption of social media. According to a survey in 2017, young Britons reported that social networks gave them scope for self-expression and community-building. But(前句铺垫，转折) they also said that the platforms exacerbated anxiety, depression, sleep-deprivation, bullying, body image and “FOMO” (“fear of missing out”). An experiment in 2014 concluded that Facebook triggers the same impulsive part of the brain as gambling and substance abuse. //
// It is difficult to prove that obsessing over likes and comments causes mental illness, rather than the other way around. But one survey tracked 5,208 Americans between 2013 and 2015, finding that an increase in Facebook activity was associated with a future decrease in mental health. Happiness rates are highestfor FaceTime (91%), a video-calling app, and phone calls (84%). When it comes to social networking, actual conversations are hard to beat.
词汇，词组
A body of
表示“很多、大量”，除了a lot of..., a large amount of...等词，我们还可以说a body of...，比如a body of evidence 大量证据，a body of information 大量信息
此外，还有很多"a+n.+of"的结构都可以表示“多”的意思.
a slew of：
A slew of competitors, promoting comfort and inclusivity, have taken thatmessage to heart.
许多提倡舒适和包容的竞争对手已将这一点牢记于心。
a host of：
A dearth of competition among firms helps explain wage inequality and a host of other ills.
企业间缺乏竞争是导致工资不平等和其他诸多问题的原因。
在新闻中，body 还有一个重要的意思为 a group of people who work or act together, often for an official purpose, or who are connected in some other way（团体；社团；群体），比如
a regulatory body 监管机构，an advisory body 咨询机构。
demonstrate /ˈdemənstreɪt/ v.
to show sth. clearly by giving proof or evidence
heavy consumption of social media
= heavy use of social media.
scope /skəʊp/ 单数名词
The scope of an activity, topic, or piece of work is the whole area which it deals with or includes.
micro(scope) 显微镜 scope还有...镜的意思；拓展一下，还有仔细看、查明的意思
scope是“范围”的意思，这里可以理解成做某事的“机会、余地”，我们找工作的时候，要先考虑平台，再考虑工资等其他因素，因为平台不好，再努力也很难得到升职的机会，我们可以说：
The job offers very little scope for promotion.
这份工作很难有提拔的机会。
文中give sb. scope for sth.则表示“给某人机会做某事”，scope可以于写作中替换opportunity。
exacerbate /ɪɡˈzæsəbeɪt/ v.
exacerbate sth(formal) to make sth. worse, especially a disease or problem
eg. Environmental pollution exacerbated human's health problems.
exacerbate可以用aggravate替换，含义及用法完全一致。
make one's woes worse，给某人雪上加霜，火上浇油。
主要词woe表示“问题、困境”的意思，而且常用复数，外刊中常用woes来替换problems，如financial woes
“恶化”补充一个表达be worse off: People in rural areas are even worse off.(OPP:better off)
sleep-deprivation
deprivation来自其动词形式deprive，表示“剥夺，使失去”，deprive
A of B，使A失去B，比如，平时工作忙，难以和朋友欢聚，可以说：
The busy work deprives me of the pleasure of meeting my friends.
我们也可以用deprive的形容词形式deprived来表示“贫穷的”意思，替换常用的poor，
比如，a deprived area 贫困地区，sb. comes from a deprived background 某人出身贫寒。
miss out
“FOMO” (“fear of missing out”)
miss out : to fail to use an opportunity to enjoy sth good 错失（美好事物）
impulsive
If you describe someone as impulsive, you mean that they do things suddenly without thinking about them carefully first. 易冲动的
substance abuse
also known as drug abuse,了解即可
obsess v.
obsess sb.to completely fill your mind so that you cannot think of anything else, in a way that is not normal
the other way around
是一个很地道的用法，表示“in the opposite position, direction, or order”，前面常加否定词，比如 rather than, not等，表示“而不是相反的情况”。
To succeed, edtech(教育技术, Educational technology) must be at the service of teaching, notthe
other way around.(ps: not the other way around = not at the service of learning.)
教育技术要成功，必须要服务于教学，而不是学习。（言外之意是，教育技术要辅助老师教学，而不是学生学习。因为一旦学生接触了技术，很难抵挡诱惑。）
全文中，“研究表明...”的“表明”的表示：
demonstrate；
according to；
conclude；
prove；
find；
还有report, say，虽然在文中的主语是人，但也可以表示“（研究）表明”。
