单选题Upon reaching an appropriate age (usually between 18 and 21 years) , children are encouraged, but not forced, to "leave the nest" and begin an independent life. After children leave home they often find social relationship and financial support outside the family. Parents do not arrange marriages for their children, nor do children usually ask permission of their parents to get married, Romantic love is most often the basis for marriage in the United States; young adults meet their future spouses (配偶) through other friends, at jobs, and in organizations and religious institutions, Although children choose their own spouses, they still hope their parents will approve of their choices. In many families, parents feel that children should make major life decisions by themselves. A parent may try to influence a child to follow a particular profession but the child is free to choose another career. Sometimes children do precisely the opposite of what their" parents wish in order to assert their independence. A son may deliberately decide not to go into his father's business because of a fear that he will lose his autonomy in his father's workplace. This independence from parents is not an indication that parents and children do not love each other. Strong love between parents and children is universal and this is no exception in the American family. Coexisting with such love in the American family are cultural values of self-reliance and independence.

单选题Studies have hinted that breast cancer survivors tend to gain weight after their diagnosis and treatment, but it"s not yet clear why. Because breast cancer rates tend to rise around menopause (更年期), doctors weren"t sure whether the weight gain was part of normal aging and changes in women"s reproductive status, or whether something about cancer made patients more vulnerable to gaining weight. In a new study published in Cancer Epidemiology, Biomarkers & Prevention , researchers compared a group of women who survived breast cancer with a similar group of women who did not have the disease. All women were at higher risk of developing breast cancer because of family history. The scientists found that even after they adjusted for the influence of age, menopause and other factors, those who survived breast cancer did indeed gain more weight— almost four pounds more, on average, within five years of their diagnosis compared to those who didn"t have cancer. Among these women, those who were treated with chemotherapy (化疗) were twice as likely to gain weight—about 11 pounds more, on average—compared to women who were treated with hormone-based therapies (who did not get any heavier with their treatments) and women who didn"t have cancer. While weight has been implicated in possibly playing some role in certain cancers, this study is among the first to tease apart what effect cancer itself, and treatments for cancer, might have on changing metabolism, inflammation, the immune system and other body functions to make weight gain more likely. By following the women for four years, the researchers, led by Dr. Kala Visvanathan, director of clinical cancer genetics and prevention service at the Johns Hopkins Kimmel Cancer Center, compared their weight changes from diagnosis onward. The team is planning to continue to follow the women for a longer period of time to track other patterns in weight. "Obviously treatment for the cancer is a priority," says Visvanathan. "But these findings show that it"s also important to take note of weight changes, especially for women getting chemotherapy. Chemotherapy treatment usually goes for six months or a year, so monitoring weight in that time and taking steps to intervene if weight is clearly increasing is important."

单选题 BQuestions 11 to 18 are based on the conversation you have just heard./B

单选题The atmosphere ______ certain gases mixed together in definite proportion.

单选题Questions 13 to 15 are based on the conversation you have just heard.

单选题 Questions 16 to 18 are based on the passage you have just heard.

单选题A) on C) to B) at D) upon

单选题[此试题无题干]

单选题A) rock C) rainB) ice D) mud

单选题The two cases—a university student stopped by the policeman and a young man applying for a job, reveal that______.

单选题 Questions 9 to 12 are based on the conversation you have just heard.

单选题 Questions 22 to 25 are based on the passage you have just heard．

单选题What does Anita accuse her former school of?

单选题Which of the following point is NOT mentioned as the potential problem of Internet voting?