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As part of the study，some 662 high school teenagers completed up to 20 questionnaires about their use of cigarettes to (55) mood．Secondary schools were selected to provide a mix of French and English participants, urban and rural schools, and schools 56 in high, moderate and low socioeconomic neighbourhoods6．
Participants were divided into three (57): never smokers; smokers who did not use cigarettes to self-medicate, improve mood or physical (58); smokers who used cigarettes to self-medicate. Depressive symptoms were measured using a scale that asked how felt too fired to do things: had (59) going to sleep or staying asleep; felt unhappy，sad. or depressed; felt hopeless about the future；felt vexed, antsy or tense; and worried too much about things.
"Smokers who used cigarettes as mood (60) had higher risks of elevated depressive symptoms (61)teens who had never smoked," says co-researcher Jennifer 0'Loughlin，a professor at the University of Montreal Department of Social and Preventive Medicine．"0ur study found that teen smokers who reported emotional benefits from smoking are (62) higher risk of depressive symptoms."
The (63) between depression and smoking exists (64) among teens that use cigarettes to feel better." It's (65) to emphasize that depressive symptom scores8 were higher among teenagers who reported emotional benefits from smoking after they began to smoke," says Dr. Chaiton．
51．A diagnose B increase C examine D treat
52．A financial B material C emotional D political
53．A Whatever B Although C Since D If
54．A road B term C journey D distance
55．A affect B judge C lead D study
56．A located B moved C exposed D mixed
57．A groups B sets C species D versions
58．A beauty B state C world D activity
59．A time B courage C trouble D energy
60．A tellers B improvers C creators D designers
61．A not B than C but D that
62．A at B in C about D without
63．A association B cooperation C difference D agreement
64．A probably B principally C occasionally D scarcely
65．A important B meaningless C illogical D friendly
【答案】
第1 部分：词汇选项
1 A confess 这个动词是"坦白、交代、承认"的意思，admit 也是"承认"的意思，两个词后面都可以跟用 that 引导的宾语从句，在这个句子里可以换用
2 D extract 作动词用是"获得、获取"的意思，在四个选项中只有 obtain 具有这样的意 义，又如: extract help, extract satisfaction, extract information 等。
3 B accelerate 这个动词原意是"加速"，如: The trains have been accelerated. 火车提速 了；The steps to implement the plan are being accelerated. 执行该计划的步伐正在加速。在本句中 accelerate his sale of shares（加速出售他的股票），无疑就是增加出售他的股票的意思，故选 increased。
4 D motive 是"动机" 的意思，the motive for (doing) something即为 "做某事的动机"，reason 是"理由"，the motive for the murder 和 the reason for the murder 是同一意思。
5 C impact 和 influence 是同义词，也解释"影响"，又如: the impact of modern technology on interpersonal relationships 现代技术对人际关系带来的影响。
6 D shine 这个动词通常用于表示"发亮、发光"的意思，如: The sun is shining。但是如 果和皮鞋一起用，那就是"擦皮鞋、把皮鞋擦亮"的意思了。本句的意思是：他的皮鞋擦得一尘不染。polish 具有"把……擦亮、磨光"的意思，clear 和 shoes 一起用的话便是"把鞋子移开"的意思了. wash 则是用水洗，mend 是修补的意思。
7 C exp]ore 是"探索、探险、摸索"的意思。 investigate 除了常用的"调查"这层意思外，也具有"探索"这样的意义。本句的意思是：在会议上我们探索了扩充的可能性。
8 A steady 是"稳定的"意思，a steady decline 则是"稳步下降"，在这个上下文中可以用 continuous 来代替它，即"不断下降"。 sharp decline 则足 "急剧下降"。
9 A remark 这个动词就是 "说"的意思，所以这里就用 saying 来代替它。
10 B framework 就是我们现在常常说的 "框架"，within the existing legal framework指在现有的法律框架内。所谓法律框架实际上就是指法律体系，所以选 system。 limit 是限制，procedure 是程序, status 是地位。
11 D find fault with something/someone 是个固定的表达式，意为"找在、吹毛求疵"，所以和 criticize（批评）基本同义。
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