题目

 阅读理解Teens who have good, supportive relationships with their teachers enjoy better health as adults, according to a research. "This research suggests that improving students' relationships with teachers could have important, positive and long-lasting effects beyond just academic success," said Jinho Kim, the author of the study. "It could also bring about important health benefits in the long run. "Previous research has suggested that teens' social relationships might be linked to health outcomes in adulthood—perhaps because poor relationships can lead to chronic (长期的) stress which can raise a person's risk of health problems over the lifespan, according to Kim. However, it is not clear whether the link between teen relationships and lifetime health is certainly cause and effect—it could be that other factors, such as different family backgrounds, might contribute to both relationship problems in adolescence (青春期) and poor health in adulthood. Also, most research has focused on teens relationships with their peers, rather than on their relationships with teachers. To explore those questions further, Kim analyzed data on nearly 20,000 participants from the Add Health study, a national study that followed participants for 13 years, from seventh grade into early adulthood. The participants included more than 3, 400 pairs of brothers and sisters. As teens, participants answered questions, such as, "How often have you had trouble getting along with other students?" "How much do you agree that friends care about you?" "How often have you had trouble getting along with your teachers?" and "How much do you agree that teachers care about you?" As adults, participants were asked about their physical and mental health. Researchers also took measures of physical health, such as blood pressure and BMI (体质指数). Kim found that, as expected, participants who had reported better relationships with both their peers and teachers in middle school and high school also reported better physical and mental health in their mid-20s. However, when he controlled for family background by looking at pairs of brothers and sisters, only the link between good teacher relationships and adult health remained significant. The results suggest that teacher relationships are even more important than previously realized and that schools should invest in training teachers on how to build warm and supportive relationships with their students, according to Kim.  （1） According to paragraph 3, we can know that ____.  A . teen relationships with teachers were not studied before. B . family background is the main factor in improving mental health. C . teen relationship is not the only factor that affects the lifetime health. D . relationship problems in adolescence can cause poor health in adulthood. （2） What is paragraph 4 mainly about? A . How the research was done. B . What questions were explored. C . How physical health was measured. D . What kind of participants were studied. （3） According to Kim's findings, we can infer that ____. A . Good adult health depends on teens' good peers and teachers. B . More attention should be paid to students' relationships with teachers. C . The importance of student-teacher relationships was fully realized before. D . More teachers should be trained to build better relationship with each other. （4） Where does this text probably come from? A . A family survey. B . A medical report. C . A term paper. D . A health magazine. 答案： C A B D

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