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1021．This trend，which was started by the medical community（醫(yī)學(xué)界）
a method of fighting heart disease，has had some unintended side effects such as overweight and heart disease-the very thing the medical community was trying to fight.發(fā)布：2024/5/23 20:38:36組卷：1引用：2難度：0.71022．寫出劃線短語的漢語意思
The professor's speech was welcomed with a chorus of praise.發(fā)布：2024/5/23 20:38:36組卷：0引用：2難度：0.71023．The car ran into a crowd of middle school students，______to hospital immediately.（ ）
發(fā)布：2024/5/23 20:38:36組卷：5引用：3難度：0.71024．A new device works like a solar panel，except that it doesn't harvest energy from the sun.It absorbs energy from the cold night sky.
A prototype（原型）of the device produced enough electricity at night to power a small light bulb.A bigger version might one day light rooms or charge phones.It could also power electronics in remote or low-resource areas that lack electricity.
The device makes use of the temperature difference between Earth and outer space.It then uses that difference to create electricity.As long as one side of it is cooler than the other，the generator can produce electricity.The cooler side faces the sky and is attached to an aluminum plate.That plate is sealed beneath a transparent cover and surrounded with insulation （隔熱材料） to keep out heat.The bottom of the generator is attached to an exposed aluminum plate.That plate is warmed by the local air.At night，the top plate can get a couple of degrees Celsius cooler than the bottom of the generator.
Researchers tested a 20-centimetre prototype one clear December night in Stanford，California.The generator produced up to about 25 milliwatts of power per square metre of the device.That was enough power to light a small light-emitting diode，or LED bulb.Further improvements might increase its production to at least 500 milliwatts per square metre.To do that，the system might need more insulation around the cool top plate.
The device also could help power remote weather stations or other environmental devices，says Aaswath Raman.He is a material scientist who worked on the device at the University of California，Los Angeles. "This may be useful in polar regions that don't see sunlight for months at a time，" Raman says. "If you have some low-power load and you need to power it through three months of darkness，this might be a way."
（1）What can we know about the new device？
A．It gains energy from the sun.
B．It's been widely used in life.
C．It is cooler than a solar panel.
D．It'll be popular in special areas.
（2）What does the author mainly talk about in Paragraph 3？
A．Application fields of the device.
B．The developing process of the device.
C．The working principle of the device.
D．Significant effects of the device.
（3）How can the device produce more electricity？
A．By putting more insulation around the top plate.
B．By using it in extremely cold and clear nights.
C．By attaching the bottom plate to a warm plate.
D．By covering the top plate with a transparent lid.
（4）What could be a suitable title for the text？
A．A Device Using the Cold Night Sky to Produce Electricity
B．A Device Bringing New Hope for Those in the Cold Night
C．The Difference Between a Solar Panel and a New Device
D．The Temperature Difference Between Earth and Outer Space發(fā)布：2024/5/23 20:38:36組卷：26引用：1難度：0.41025．
n.化學(xué)家；藥劑師；藥房→ chemistry n.化學(xué)；化學(xué)組成；→ chemical adj.化學(xué)的；化學(xué)反應(yīng)的；用化學(xué)方法生成的發(fā)布：2024/5/23 20:38:36組卷：0引用：2難度：0.71026．Let's read the text in c
.發(fā)布：2024/5/23 20:38:36組卷：0引用：0難度：0.91027．寫出畫線短語的漢語意思
I have worked out a new way of doing it.發(fā)布：2024/5/23 20:38:36組卷：1引用：2難度：0.91028．Over the centuries， further trading allowed more exploration of the regions to the west China，
recorded in Du Huan's Record of My Travels in the eighth century.發(fā)布：2024/5/23 20:38:36組卷：2引用：1難度：0.71029．The
（law） claims that the accused was not guilty.發(fā)布：2024/5/23 20:38:36組卷：0引用：1難度：0.61030．the second bomb
第二顆炸彈爆炸了發(fā)布：2024/5/23 20:38:36組卷：0引用：2難度：0.7
