1．Spending time online is normal behavior for teenagers．But too much Internet use by teens-or too little，for that matter-might be related to depression （抑郁），a new study finds．
The findings，reported in the Journal of Pediatrics，do not mean that the Internet is to blame．For one，teens in the study who spent no time online were also at increased risk of depression symptoms （癥狀）．Instead，the researchers say that both heavy Internet use，and non-use，could show that a teenager is having a hard time．
For the study，Dr．Pierre-Andre Michaud and his colleagues at the University of Lausanne，Switzerland，surveyed 7，200individuals ages 16to 20about their Internet use．
Those who were online more than two hours per day were considered"heavy"Internet users，while those online anywhere from several times per week to two hours per day were considered"regular"users．
The teenagers also answered a number of health-related questions，including some standard questions about"depressive tendencies"（抑郁傾向） that show how often a person feels sad or hopeless．Compared with regular Internet users，the study found，kids who were heavy users or non-users were more likely to be depressed or very depressed．
Among boys，heavy users and non-users were both around one-third more likely to have a high depression score，compared to"regular"users．Among girls，heavy Internet users had an 86percent greater chance of depression，while non-users had a 46percent compared to regular users．
Since teenagers typically go online to connect with friends．The researches find that those who are never online may be more socially isolated．
56．Which is TRUE according to the passage？B
A．Teenagers never go online are good students．
B．Teenagers never go online may get depression．
C．Surfing the Internet for teenagers is bad behavior．
D．Internet is the reason of teenager's depression．
57．How long does the writer suggest teens to go online per week？A
A．Less than 14hours．
B．More than 14hours．
C．More than 20hours．
D．Less than 20hours．
58．The purpose of Dr．Michaud and colleagues'study is to knowD．
A．the actual time of teenagers learning online
B．the actual number of teenagers playing online
C．the influence on school study about teenagers online
D．the relationship between Internet use and depression
59．What's the meaning of the word isolated in the last paragraph？C
A．Independent
B．United．
C．Separate
D．Humorous．
分析 本文通過一次調(diào)查證明了，在年輕人中，重度互聯(lián)網(wǎng)使用者和從不使用互聯(lián)網(wǎng)的孩子都有抑郁傾向，從來不使用互聯(lián)網(wǎng)的孩子甚至會被社會孤立．
解答 56．B推理判斷題．根據(jù)文中第二段的原句For one，teens in the study who spent no time online were also at increased risk of depression symptoms （癥狀）．可以得知從來不上網(wǎng)的年輕人有抑郁癥狀的風險也在增加．另外，倒數(shù)第二段中的原文Among boys，heavy users and non-users were both around one-third more likely to have a high depression score，compared to"regular"users．Among girls，heavy Internet users had an 86percent greater chance of depression，while non-users had a 46percent compared to regular users．這個實驗證明了在男生中不上網(wǎng)的年輕人與正常使用互聯(lián)網(wǎng)的人相比有三分之一有抑郁的表現(xiàn)，女生中百分之四十六．故選項B的描述正確．
57．A細節(jié)理解題．根據(jù)文中第四段中的原句while those online anywhere from several times per week to two hours per day were considered"regular"users．可以得知，那些每天上網(wǎng)兩小時的人被稱為"正常使用者"．所以作者建議年輕人每周上網(wǎng)的時間要少于14小時．故選A．
58．D細節(jié)理解題．結(jié)合文中第三四五段的活動，Dr．Michaud 是想通過實驗證明使用互聯(lián)網(wǎng)時間的長短對年輕人的壓力之間的關(guān)系．故D選項描述正確．
59．C詞匯理解題．結(jié)合文中最后一段原句Since teenagers typically go online to connect with friends．The researches find that those who are never online may be more socially isolated．由于年輕人上網(wǎng)是為了與朋友聯(lián)系，所以調(diào)查還發(fā)現(xiàn)那些從來不上網(wǎng)的孩子可能有被社會、社交孤立了．故isolated的意義等同于separate，表示孤立、分開．
點評 閱讀理解題，需要先讀題，理解清楚題目意思，接著帶著問題去文章中尋找、推斷答案．把握好細節(jié)，注意推敲才能保證正確率．
