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Electronic Waste
It has been known since ancient times that certain plants regularly open
their leaves in daytime and close them at night. It was assumed which this 【S1】______
periodic change was triggered by the alternating sunlight and darkness. Such
leaves stick to their daily routine even when keeping in constant darkness. 【S2】______
What is circadian rhythm？ Many biological processes follow a 24-hours 【S3】______
schedule. These cycles are called circadian rhythms. These innate rhythms are
governed by sophisticated chemical mechanisms can be described as biological 【S4】______
clocks. Such rhythms are important for humans too! We sleep through most
of the hours of darkness and are awaken through most of the hours of 【S5】______
daylight. Body temperature increases during the day and decreases during the
night. The secretion of various hormones that controls life's processes rises 【S6】______
and falls to a circadian rhythm.
How does this relate to health？ Circadian rhythms are important for
desirable functioning of the processes vital to health. This is most effectively
illustrated and the normal circadian rhythms are disrupted by lack of sleep or 【S7】______
by crossing time miles. It may take days or even hours for all the bodies 【S8】______
circadian rhythms to read just appropriately. The turmoil (混乱) that results
from the readjustment process when time zones are crossed experienced as the 【S9】______
phenomenon of jet lag. This is also experienced by people who do shift work.
Understanding circadian rhythms may be irrelevant to the understanding and 【S10】______
treatment of disease. Therapy can be more effective and toxic effects reduced
when drugs are administered at carefully selected times of the day.
【S1】
更多“Electronic Waste It has been known since ancient times that certain plants regularly opent”相关的问题
第1题
A、three times faster
B、three times faster than
C、three times than
D、three-times fast than
第2题
We learn from the passage that much of California's electronic waste has been ______.
A．collected by non-profit agencies
B．damped into local landfills
C．exported to foreign countries
D．recycled by computer manufacturers
第3题
According to the latest research, electronic interaction through computer is______.
A．highly rewarding
B．a waste of time
C．only informative
D．an escape from social life
第4题
第5题
We learn from the passage that much of California's electronic waste has been______.
A．dumped into local landfills
B．exported to foreign countries
C．collected by non-profit agencies
D．recycled by computer manufacturers
第6题
A．There are too many programs for grown ups on TV.
B．Reading advertisements is a waste of time.
C．Watching TV may hurt children's eyes.
D．Some electronic equipment may cause social problems.
第7题
The two bills stalled in the California Assembly both concern______.
A．the reprocessing of the huge amounts of electronic waste in the state
B．regulations on dumping hazardous substances into landfills
C．the funding of local initiatives to reuse electronic trash
D．the sale of used electronic devices to foreign countries
第8题
According to the latest research, electronic interaction through computer is______.
A．highly rewarding
B．a waste of time
C．only informative
D．an escape from social life
第9题
The two hills stalled in the California Assembly both concern ______.
A．regulations on dumping hazardous substances into landfills
B．the sale of used electronic devices to foreign countries
C．the funding of local initiatives to reuse electronic trash
D．the reprocessing of the huge amounts of electronic waste in the state
第10题
______ is the key to recycle your computer properly.
A．To choose the right program
B．To manage waste responsibly
C．To figure out who's dumping electronic waste
D．To promote responsible recycling and green design in the electronics industry
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