[单项选择]A. Spend more time working on chemistry problems.
B. Talk to an advisor about dropping the course.
C. Work on the assignment with a classmate.
D. Ask the graduate assistance for help.

[填空题]Children today spend more time stare at computer and (1)______
TV screens both at school and at home. Scientific (2)______
studies show an epidemic of myopia (also known as
nearsightedness) has struck children—and it is spreading
faster in many countries. Doctors warn that sitting too close
to a computer, especially fixes your eyes at a computer or (3)______
TV screen from close range, increases the risk of myopia.
The cause of myopia is difficult to explain in simple
terms. While some say sitting near computers and TV
screens is one of the reasons, others say children born to
nearsighted parent/parents are vulnerable. (4)______
Can genes or the environment, or a combination of two (5)______
explain the growing prevalence of myopia across many
countries How can parents understand what causes myopia
and the risks it poses to their children’s eyesight
Children suffering from

[单项选择]（　） seem to spend more time learning English instead of （　）.
A. Chinese... Chinese
B. Chinese... the Chinese
C. The Chinese... the Chinese
D. The Chinese... Chinese

[单项选择]A. Spend more time in the library. B. Write just one paper for all his classes.
C. Drop one of his courses. D. Do his research on closely related topics,

[单项选择]People will spend more time on ______ rather than jobs in the future.
A. games
B. charities
C. TV
D. reading

[单项选择]The more time children spend watching television the poorer they perform academically, according to three studies published on Monday. (47) television viewing has been blamed for increasing rates of childhood obesity (肥胖) and for aggressive behavior, while its (48) on schooling have been inconclusive, researchers said. But studies published on the topic in this month’’ s Archives of Pediatrics (小儿科) & Adolescent Medicine concluded television viewing (49) to have an adverse effect (反作用) on academic pursuits. For (50) , children who had televisions in their bedrooms--and (51) watched more TV--scored lower on standardized tests than those who did not have sets in their rooms. In contrast, the study found having a home computer with (52) to the Internet resulted in comparatively higher test scores. "Consistently, those with a bedroom television but no (53) home computer had, on aver age, the lowest scores and those with home computer but no bedroom television had the