Tom is a well-known blogger who often writes blog posts on his blog. He likes to use search engines to find information he needs. He also likes to watch movies streaming online. When chatting with others, he uses different identities and avatars. He has access to free Wi-Fi, which is very convenient for him to d    1     software from the network. His database and file are u    2     once a week. Surfing the Internet has indeed brought him great b    3    . It seems that the computer keeps him c    4     all day. Once he went to a conference held in his province. He didn’t bring any cash with him plus he lost his i    5     card. So he paid online.

汤姆是一位著名的博主，经常在博客上写博文。他喜欢使用搜索引擎来查找他需要的信息。他还喜欢观看在线电影。与他人聊天时，他使用不同的身份和头像。他使用免费的Wi-Fi，这对他从网络上下载软件非常方便。他的数据库和文件每周都要更新一次。网上冲浪的确给他带来了很大的好处。电脑似乎整天都在陪伴着他。有一次，他去参加一个在他的省里举行的会议。他身上没带任何现金, 而且又丢了身份证。所以他就在网上付款。

American teens are seen as “in a state of     1     disaster”. A report released last week paints a deeply disturbing     2     of the mental health of high students.

    3     more than 17, 000 teens conducted in a survey in 2021, 42 percent said they experienced the     4     of sadness or hopelessness. The issue is     5     more widespread than in a     6     survey in 2011, and girls are dramatically worse. A     7     of girls — 57 percent — reported persistent despair,     8     with 29 percent of boys.

Nearly 1     9     3 girls seriously considered suicide (up from 19 percent in 2011), and 13 percent say they attempted it in the     10    . “What caused this?” The CDC offered     11     definitive answers, but consider     12     has happened over the past decade. “Instagram was released in late 2010. TikTok in 2016.” Soon     13    , 90 percent of teen girls reported using social     14     every day. These apps, create more “social comparison, social pressure, and     15     peer interactions,” with teens measuring their self-worth — or lack of it — in likes and followers. Then in 2020 Covid-19     16     the picture.

    17     its root causes, this epidemic of hopelessness should     18     considered “a national crisis”. Did the reopening of schools and social spaces this year help     19     teens’ suffering? The CDC survey comes out only every other year, so we’ll have to wait to     20     out.