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第15练　阅读理解＋写作

Ⅰ.阅读理解

A

Facebook remains the most used social media site among American teens from 13 to 17，according to the latest study from the New Research Center.And，surprisingly，boys visit the site more often than girls.

Aided hugely by smart－phones and other mobile devices，71 percent of teens surveyed said they use Facebook，with the same percentage saying they use more than one social network of seven options they were asked about.Half the teens said they also use Instagram and 4 in 10 said they used Snapchat.

Among 22 per cent of teens who use just one site，66 per cent use Facebook，13 percent use Google Plus，13 percent are Instagram users and 3 percent use Snapchat.Facebook was the site they used most frequently，at 41 percent，followed by Instagram at 20 percent and Snapchat at 11 percent.Boys are more likely than girls to report they visit Facebook most often—at 45 percent versus 36 percent of girls.

Teens from households with earnings of less than $50，000 are more likely to use Facebook the most—49 percent compared with 37 percent of teens from households with earnings of $50，000 or more.

As far as how much time is spent on social media，24 percent of teens overall go online “almost constantly，” the study said，with 56 per cent saying they go online several times a day and 12 per cent reporting once－a－day use.

Among other sites the 1，060 teens were asked about are Twitter，Vine and Tumblr.33 percent said they use Twitter and Google Plus，while 24 percent said they use Vine and 14 percent said Tumblr.6 percent said they use Twitter most often.

【语篇解读】　一项研究显示，使用Facebook进行通讯交流的青少年依然占据大多数，其中男生又多于女生。

1．According to the new study，we can learn that ________．

A．most teens generally go online several times a day

B．71 percent of teens go online almost constantly

C．using social media brought children more risks than benefits

D．girls tend to visit Facebook more frequently than boys

答案　A　[细节理解题。根据倒数第二段最后一句中的“the study said，with 56 percent saying they go online several times a day”可知，研究表明，大部分青少年一天上几次网。]

2．Which has the fewest users among teens who use just one site?

A．Facebook. B．Google Plus.

C．Snapchat. D．Instagram.

答案　C　[推理判断题。根据第三段第一句可知，在使用一个网站上网的青少年中，只有3%的人使用Snapchat，相比其他三个，占比例数最小。]

3．How does the author develop the passage?

A．By following time order.

B．By following space order.

C．By providing examples.

D．By listing numbers.

答案　D　[推理判断题。通读全文可知，本文在介绍研究结果时列举了大量数据。作者用数据贯穿全文，采用的是列数据的写作方式。]

4．Which of the following can be the best title for the passage?

A．Social media are teens’ greatest expense

B．Facebook is still teens’ most－used website