题目内容
（请给出正确答案）
Researchers have shown that ()can elevate mood, improve creativity and enhance sleep in many but not all people.
grA.fabric
B.fraA.fabric
B.fragrance
C.fragment
D.facility
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更多“Researchers have shown that （)…”相关的问题
A.subjective
B.liable
C.inferior
D.vulnerable
A.show interface brief
B.sho logging current-alarm
C.sho version
D.sho ru
A.Periodic Intra Frequency
B.UE Internal
C.Inter Frequency
D.Intra Frequency SHO
Starrett's daughters—Georgia, 10, and Caroline, 7—attend Vallecito.They are thrilled with their desks.“You feel happier, you're less tired, andyou're more active,” Georgia says.
Some of the desks have wheels and fidget bars.The bars let kidsmove in a way that doesn't disturb the class.Wheels allow the desks to bemoved easily.The desks also adjust to different heights.Kids take breaks bysitting on the floor or on stools.
There is the trend of designing things to make them easy and safe touse.According to Mark Benden, director of the Texas A&M Center, standingworkers are more focused and healthier.He says his research shows that kidsusing standing desks are more engaged and burn more calories (卡路里).InDecember, researchers in New Zealand, Australia, and the United Kingdomreleased similar findings.But not everyone is convinced standing is betterthan sitting.Some parents and teachers worry that kids will get tired and thatstanding for long periods of time may be harmful.And standing desks are moreexpensive.
Benden says both sitting and standing desks can cause problems ifthey are not the proper height.“Our message should not be ‘Sit less, standmore,'” he says, “but ‘Sit less, move more.'”
11.How many classrooms in Vallecito areequipped with standing desks？()
A.3
B.25
C.19
D.22
12.What is Paragraph 3 mainly about？()
A.Why standing desks are used
B.Where standing desks are used
C.How standing desks are used
D.Who use standing desks
13.Mark Benden's research shows that kidsusing standing desks().
A.feel more tired
B.are more focused
C.get better scores
D.tend to eat more
14.The researchers in Australia and the UK(para.4)().
A.would agree with Benden
B.are not fully convinced by Benden
C.partly support Benden's findings
D.find it hard to accept Benden's theory
15.Some parents and teachers worry that usingstanding desks may().
A.disturb the kids in class
B.leave the classroom noisy
C.harm the students' health
D.increase the teachers' workload
Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively in cognitive areas such as attention and memory. This is true regardless of age.
People will be alert and receptive if they are faced with information that gets them to think about things they are interested in. And someone with a history of doing more rather than less will go into old age more cognitively sound than someone who has not had an active mind.
Many experts are so convinced of the benefits of challenging the brain that they are putting the theory to work in their own lives. “The idea is not necessarily to learn to memorize enormous amounts of information,” says James Fozard, associate director of the National Institute on Again. “Most of us don't need that kindof skill. Such specific training is of less interest than being able to maintain mental alertness.” Fozard and others say they challenge their brains with different mental skill, both because they enjoy them and because they are sure that their range of activities will help the way their brains work.
Gene Cohen, acting director of the same institute, suggests that people in their old age should engage in mental and physical activities individually as well as in groups. Cohen says that we are frequently advised to keep physically active as we age, but older people need to keep mentally active as well. Those who do are more likely to maintain their intellectual abilities and to be generally happier and better adjusted. “The point is, you need to do both,” Cohen says. “Intellectual activity actually influences brain-cell health and size.”
6. People who are cognitively healthy are those _______.
A、who can remember large amounts of information
B、who are highly intelligent
C、whose minds are alert and receptive
D、who are good at recognizing different sounds
7. According to Fozards argument people can make their brains work more efficiently by _______.
A、constantly doing memory work
B、taking part in various mental activities
C、going through specific training
D、making frequent adjustments
8. The findings of James and other scientists in their work _________.
A、remain a theory to further proved
B、have been challenged by many other experts
C、have been generally accepted
D、are practiced by the researchers themselves
9. Older people are generally advised to ___________.
A、keep fit by going in for physical activities
B、keep mentally active by challenges through specific training
C、maintain mental alertness through specific training
D、maintain a balance between individual and group activities
10. What is the passage mainly about？
A、How biochemical changes occur in the human brain.
B、Why people should keep active not only physically but also mentally.
C、How intellectual activities influence brain-cell health
D、Why people should receive special mental training as they age.
A、deficit
B、proficiency
C、defend
D、derive
A、Insurability.
B、Social status.
C、Amount of income.
D、All of the above.
A.If he carries on driving like that, he will end up dead
B.Some researchers think most American people would end up to lose under the new tax plan
C.She fled with her family during the war and ended up in a remote village
D.If you do not study for the exam, you will definitely end up with a poor score
