[填空题]The Canadian study found that illness in the family was a greater cause of absenteeism than ’work to do at home’.

[填空题]The Canadian study found that illness in the family was a greater cause of absenteeism than ’work to do at home’.

[填空题]The Canadian study found that illness in tile family was a greater cause of absenteeism than ’work todo at home’.

[简答题]Another study found that compared with children, adolescents may have a greater stress response in face of ______.

[单项选择]A study found that 70 percent of children surveyed in 1970 had at one time had cavities, whereas only 50 percent of those surveyed in 1985 had ever had cavities. The researchers concluded that the level of dental disease in children had declined between 1970 and 1985.
Which of the following, if true, would most seriously undermine the researchers’ conclusion presented above
A. Cavities are the most common kind of dental disease to which children are subject.
B. The children surveyed came from a broad variety of income backgrounds.
C. The children surveyed were selected from among students of teachers cooperating with the researchers.
D. The accuracy of cavity detection techniques has improved dramatically since 1970.
E. (E) The children surveyed in 1985 were younger on average than those surveyed in 1970.

[简答题]A Harvard study found that kids who smoked pot earlier had difficulty in making ______ when directions changed.

[填空题]

The study found that people who ate the largest amounts of flavonols had a ______ reduced risk of developing pancreatic cancer compared to those who ate the least.

[简答题]One study found women who work with VDTs in early pregnancy are more likely than others to have their pregnancy end unexpectedly. (Passage One)

[单项选择]

A new study found that inner-city kids living in neighborhoods with more green space gained about 18% less weight over a two-year period than kids living amid more concrete and fewer trees. Such (1) tell a powerful story. The obesity epidemic began in the 1980s, and many people (2) it to increased portion sizes and inactivity, but that can’t be everything. Fast foods and TVs have been (3) us for a long time. "Most experts agree that the changes were (4) to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health. That something could be a (5) of the green.
The new research, (6) in the American Journal of Preventive Medicine, isn’t the first to associate greenery with better health, but it does get us closer (7) identifying what works and why. At its most straightforward, a green neighborhood (8) means more place
A. outward
B. apart
C. aside
D. outside