11．Students who date （约会） in middle school have significantly worse study skills，are four times more likely to drop out of school and report twice as much alcohol and tobacco use than their single classmates，according to new research from the University of Georgia．
"Romantic relationships are a symbol of adolescence（青春期），but very few studies have examined how adolescents are different in the development of these relationships．"said Pamela Orpinas，study author and professor in the College of Public Health．
Orpinas followed a group of 624students over a seven-year period from 6th to 12th grade．Each year，the group of students completed a survey indicating whether they had dated and reported the frequency of different behaviors，including the use of drugs and alcohol．Their teachers completed questionnaires （调查表） about the students'academic efforts．He found some students never or hardly ever reported dating from middle to high school，and these students had the best study skills according to their teachers．Other students dated infrequently in middle school but increased the frequency of dating in high school．
"At all points in time，teachers rated the students who reported the lowest frequency of dating as having the best study skills and the students with the highest dating as having the worst study skills，"according to the journal article．Study skills refer to behaviors that lead to academic success such as doing work for extra credit，being well organized，finishing homework，working hard and reading assigned chapters．
"Dating a classmate may have the same emotional complications of dating a co-worker，"Orpinas said，"When the couple break up，they have to continue to see each other in class and perhaps witness the ex-partner dating someone else．It is reasonable to think this could be linked to depression and divert （转移） attention from studying．"
"Dating should not be considered a ceremony of growth in middle school．"Orpinas concluded．
67．According to the passage，students who date in middle school mayA．
A．have poorer academic performances
B．be more likely to hurt others
C．enjoy better school lives
D．are less likely to use alcohol and tobacco
68．When doing his study，OrpinasB．
A．followed a group of students of 6th and 12th grade
B．found that the students'study skills have connection with their frequency of dating
C．completed questionnaires about the students'academic efforts
D．completed a survey and a report each year
69．What can possibly happen to the school couples after they break up？C
A．They will miss their ex-partners sometimes．
B．They don't want to see each other any longer．
C．Their attention to studying will be affected．
D．They will think it's reasonable to get depressed．
70．Orpinas'attitude towards dating in middle school isB．
A．supportive B．negativeC．indifferentD．positive．
分析 文章介绍了Orpinas做的一项调查，目的是弄清学生的成绩和约会的频率有关．约会的学生成绩一般都不好．分手的两个人会上课不专心．Orpinas 对中学谈恋爱是消极的观点．
解答 ABCB
67 A 细节理解题． 从第一段的句子：Students who date （约会）in middle school have significantly worse study skills，可知约会的学生成绩一般都不好．选A
68 B 细节理解题．从第五段的句子："At all points in time，teachers rated the students who reported the lowest frequency of dating as having the best study skills and the students with the highest dating as having the worst study skills，可知学生的成绩和约会的频率有关．故选B．
69 C 细节理解题．从第六段的句子：when the couple break up．they have to continue to see each other in class and perhaps witness the ex-partner dating someone else．It is reasonable to think this could be linked to depression and divert （转移）attention from studying．"可知分手的两个人会上课不专心．选C
70 B 主旨大议题．从最后一段的句子：4tDating should not be considered a ceremony of growth in middle school，可知Orpinas 对中学谈恋爱是消极的观点．选B
点评 学生需要认真阅读原文，把握文章大意，对文章脉络有整体的了解，能仔细查找文中细节，并能根据文章内容进行合理的推测判断．
