例:Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains in information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.
文章大意:本文主要介绍了使用媒体对孩子的大脑的影响。A、B段提出主题:使用媒体对孩子的大脑会造成影响。C-E段通过各种研究说明使用媒体对大脑有什么影响。F、G段分别介绍了两种观点。最后两段说明了作者的观点以及他如何解决这一问题。
46. According to a 2009 study, people who did a lot of media multitasking made more fault on the test.
解析:定位于C段第2句:But a 2009 study found that when extraneous information was presented, participants who did a lot of media multitasking performed worse on a test than those who dont do much media multitasking.
47. In order to help his son get more sleep, the author forbids his son to use electronic devices after 9:30 p.m.
解析:定位于I段第2、3句:Ive set some rules that are designed to aid his social and cognitive development: no Facebook during school, and no electronic devices after 9:30 p.m. The latter prohibition is designed to help him get more sleep, which, according to some studies, is when our brains prune connections among neurons. Preserving and speeding up the ones that matter and flushing out the ones that dont.
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