【题目】The Internet has become part of teenage life. A new report on 3,375 students aged from 10 to 18 in seven Chinese cities found that 38 percent of them believe they use the Internet often. While most of them get useful information and use the Internet to help in their studies, ...
4.C.主旨大意题.根据第一段A new study by the British government has discovered the mental well-being of the country's teenage girls has worsened.(英国政府的一项新研究发现,英国少女的心理健康状况有所恶化.)是全文的主题句,结合全文内容,可知这篇文章主要讲了社交媒体对女孩的影响,故选C....