（一）SmokingCanIncreaseDepressiveSymptomsinTeens根据以下材料，回答问题。Whilesometeenager

共享题干题 （一）Smoking Can Increase Depressive Symptoms in Teens根据以下材料，回答问题。 While some teenagers may use cigarettes to "self-medicate" (自我治疗) against the blues (忧郁), scientists at the University of Toronto and the University of Montreal have found that smoking may actually __________ (51) depressive symptoms in some teens. "This observational study is one of the few to examine the perceived __________ (52) benefits of smoking among teens, " says lead researcher Michael Chaiton, a research associate at the Ontario Tobacco Research Unit of the University of Toronto." __________ (53) cigarettes may appear to have self-medicating effects or to improve mood, in the long __________ (54) we found that teens who started to smoke reported higher depressive symptoms." 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 neighbourhoods. 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 often participants felt too tired to do things; had __________ (59) going to sleep or staying asleep; felt unhappy, sad, or depressed; felt hopeless about the future; felt anxious or tense; and worried too much about things. "Smokers who used cigarettes as mood __________ (60) had higher risks of elevated (提升)depressive symptoms __________ (61) teens who had never smoked, " says co-researcher Jennifer O'Loughlin, a professor at the University of Montreal Department of Social and Preventive Medicine. "Our study found that teen smokers who reported emotional benefits from smoking are __________ (62)higher risk of developing depressive symptoms." The __________ (63) between depression and smoking existsv __________ (64) among teens that use cigarettes to feel better. "It's __________ (65) to emphasize that depressive symptom scores were higher among teenagers who reported emotional benefits from smoking after they began to smoke, "says Dr. Chaiton.1.[不定向选择题]__________A.time B.courage C.trouble D.energy 2.[不定向选择题]__________A.diagnose B.increase C.examine D.treat

1.参考答案：C
参考解析：这里考查的是词汇。题干：入睡或者保持睡眠__________。have与四个选项搭配，只有have trouble doing(做某事有困难)符合题意，故C为正确答案。
2.参考答案：B
参考解析：这里考查的是词汇。题干：虽然有些青少年用吸烟来自我治疗忧虑，但科学家们发现抽烟实际上__________抑郁的症状。此处表达了转折的意味，应该是说抽烟不仅不能缓解忧虑，而是加深了忧虑症状，因此选B。3.[不定向选择题]__________A.affect B.judge C.lead D.study

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