更多"（ ） seem to spend more time learnin"的相关试题:
[单项选择]（） he’s been learning English for no more than a year, he speaks it very well.
A. Assuming
B. Considering
C. Supposing
D. Now that
[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]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.
[单项选择]
The more time scientists spend designing computers the more they marvel at the human brain. Tasks that baffle (难住) the most advanced supercomputer—recognizing a face, reading a handwritten note—are child’s play for the 3-pound organ. Most important, unlike any conventional computer, the brain can learn from its mistakes. Researchers have tried for years to program computers to imitate the brain’s abilities, but without success. Now a growing number of designers believe they have the answer: if a computer is to function more like a person and less like an over-grown calculator, it must be built more like a brain, which distributes information across a vast interconnected web of nerve cells, or neurons.
Conventional computers function by following a chainlike sequence of detailed instructions. Although very fast, their processors can perform only one task at a time. This approach works best in solving problems that can be broken down into simpler log
A. can recognize a face and read a handwritten note
B. can learn from its mistakes
C. weighs only 3 pounds
D. cannot distribute information across an interconnected web of nerve cells
[填空题]Her aims in learning English are to read English with ease and write it with ______ (accurate).
[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
