“利人利己”求答案~~Cigarettes may damage more than just children’s lungs. According to researchers, teen smokers are much more likely to become depressed（精神不振的）than their nonsmoking classmates. The findings contradict the wi

“利人利己”求答案~~Cigarettes may damage more than just children’s lungs. According to researchers, teen smokers are much more likely to become depressed（精神不振的）than their nonsmoking classmates. The findings contradict the wi
“利人利己”求答案~~
Cigarettes may damage more than just children’s lungs. According to researchers, teen smokers are much more likely to become depressed（精神不振的）than their nonsmoking classmates. The findings contradict the widely held belief that teens often start smoking to deal with emotional disorders.
In a study published this month in the magazine Pediatrics, researchers tracked a group of young school children’s behavior. “Smoking within 30 days of the start of the study did predict （预言）being depressed a year later”, says Elizabeth Goodman of Children’s Hospital Medical Center in Cincinnati. Teens who smoked were almost four times as likely to be depressed a year later as their nonsmoking classmates. Unexpectedly, the study also shows that nonsmokers who were depressed at the beginning of the study were no more likely to be smokers a year later than their happier classmates.
Though links between depression and smoking remain unclear, the study’s authors say nicotine （尼古丁）and other tobacco byproducts may change brain chemistry. That finding is supported by the fact that anti-depression drugs can be helpful in helping people give up smoking.
The study suggests that teen smoking is a serious mental health problem, the authors say. “Smoking isn’t bad for children just because it gets them sick 50 years later,” says coauthor John Capitman of Brandeis University. “it has a bad effect on them in the near future.”
49. The underlined word “contradict”(Paragraph 1) probably means______
A. point to B. try on C. work out D. disagree with
50. The study suggests that teen smokers are more likely ______.
A. to be depressed B. to defeat depression C. to be sick when they reach old age
D. to give up smoking when they become adults
51. Which of the following is TRUE to the research findings on teen smokers?
A. sick children are not likely to find comfort in smoking.
B. Happier children are not likely to become smokers.
C. Smoking does not help children who suffer from depression.
D. Smoking is not bad for children because it makes them sick in the future.

“利人利己”求答案~~Cigarettes may damage more than just children’s lungs. According to researchers, teen smokers are much more likely to become depressed（精神不振的）than their nonsmoking classmates. The findings contradict the wi
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