2016年12月英語六級答案點評：試卷二仔細閱讀2（文都教育版）
Section C passage two
51.[C]
Teenagers’ mental problems are often too conspicuous not to be observed.
解析：答案定位在文章第一段， “Teenagers at risk of depression, anxiety and suicide often wear their troubles like a neon（霓虹燈）sign. Their risky behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.” 在這個段落中指出，青少年經歷在這樣的危險中：抑鬱，焦慮和自殺，且危險愈來愈烈；這些行爲：飲酒過度，吸食毒品，吸菸及逃學曠課，警示着父母及老師。通過文中的“neon（霓虹燈）sign” 到就可以選出正確選項C：
“青少年的心理問題尤爲明顯且讓人易注意到”。
解析：答案定位在文章第三段的第一句“Of course, that may sound like a description of every teenager on the planet”（似乎地球上的所有年輕人都有這些心理問題），其中“a description of every teenager on the planet”直接對應題目中的many hitherto unobserved youngsters，因此就可以選出正確選項D：
“許多之前沒發現的年輕人都有這些心理問題”。53. [B] Their behaviors do not constitute a warning signal.
解析：答案定位在文章第三段最後一句“Because their behaviors are not usually seen as a red flag, these young people have been dubbed the“invisible risk”group by the study’s authors”，其中“as a red flag（危險信號）”直接對應題目中的a warning signal（危險的信號），由此就可以選出正確選項B：
“他們的行爲並未構成一個危險的信號”。54. [A] They are almost as liable to depression as the high-risk group.
解析：答案定位在文章第七段，“The group that scored high on all nine of the risk behaviors was most likely to show symptoms of depression; in all, nearly 15% of this group reported being depressed., compared with just 4% of the low-risk group. But the invisible group wasn’t far behind the high-risk set,with more that 13%of them exhibiting depression.”。通過分析段落中的數據不難得出，具有較高危險行爲的學生羣體的數據近乎15%，而這些 invisible group的數據爲13%，由此可以選出正確選項D：
“這些危險行爲不明顯的學生幾乎與危險行爲明顯的學生一樣多”。55. [B] It provides new early-warning signals for identifying teens in trouble.
解析：答案定位在文章最後一段，“Carli says that one of the most significant things about this study is that it provides new early-warning signs for parents, teachers and mental health-care providers.”，選項B“ It provides new early-warning signals for identifying teens in trouble.”直接對應文中的it provides new early-warning signs for parents, teachers and mental health-care providers， 由此就可以選出正確選項D：
“可以爲鑑別青少年的行爲提供新的早起徵兆”。
