A 90-second animated (动画) video of the Beijing 2022 Winter Olympic Games
Netizens were fascinated by the video’s
The video starts with a girl and a panda going to Beijing
Hangzhou AU Culture and Technology Co. created the work. It is an animation company and
“ We hope to add more
With the International Conference on Food Loss and Waste closed on Saturday in Jinan, Shandong Province, the country has sent a signal to
The current world grain production is about 2.8 billion tons a year. Therefore, the loss of only one percentage
In recent years, China
We cannot end hunger
3 . New methods have allowed researchers and scientists to find a way to reduce heat loss from buildings by about 30%. This new “green” solution is quite literally (确实地) green as it involves fitting a living wall by sticking soil and plants onto the walls, according to a new research.
To see what effects renewing a living wall on an existing building would have on the environment, the scientists decided to test it out on a building at a university in the UK, which was originally built in the 1970s. As a control, part of the building was not fitted with the living wall. Both of the parts of the building were west-facing and the test was conducted over 5 weeks. They found that the part with the living wall lost 31.4% less heat as compared to the side without it. So it took less energy to heat and had environmentally friendly effects.
In the UK, approximately 57% of buildings were built before 1964. They have caused 17% of greenhouse emissions (排放), about 60% of which come from house heating. If people could reduce heat loss from older buildings by 30%, a huge part of greenhouse emissions could be eliminated. While regulations have changed recently to improve the thermal performance (热性能) of new constructions, it is the existing buildings that require the most energy to heat and are a significant contributor to carbon emissions. It is, therefore, essential that people begin to improve the thermal performance of these existing buildings if the UK is to reach its target of net (净) zero carbon emission by 2050, and help to reduce the possibility of fuel poverty.
The new research suggests living walls can also provide significant energy savings to help reduce the carbon footprint of existing buildings. Perfecting these living wall systems, however, is now needed to help increase the environmental benefits.
1. What did the researchers find about the living wall in the test?A.It protected the building very well. |
B.It caused serious waste of some fuels. |
C.It reduced the heat loss of the building. |
D.It made the building look more beautiful. |
A.Repeated. | B.Removed. | C.Defeated. | D.Renewed. |
A.Pulling down the older buildings. |
B.Cutting down the prices of fuels. |
C.Reducing heat loss from the older buildings. |
D.Adding more living walls to new buildings. |
A.Promising. | B.Doubtful. | C.Expensive. | D.Impracticable. |
Students of a Nanjing senior high school brought joy to the elderly and brightened up their day by volunteering at a local nursing home last weekend. The nursing home,
Though it was the first time many of the students
Wang Hong, the programme
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Ladies and gentlemen,
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Thank you very much for your listening.
As a child, Obaida Omar
About 250 guests attended the dinner, the proceeds(收益) of
Children did not create this conflict, but they are its greatest
“We
On the whole, the dinner was a success. The audience was also full of praise.
9 . Marie Van Brittan Brown, an African American nurse living in Jamaica, Queens in the 1960s, was working in shifts, as was her husband, Albert, an electronics technician. When she arrived home late, she sometimes felt afraid. Serious crimes in Queens jumped nearly 32 percent from 1960 to 1965, and police were slow to respond to emergency calls. Marie wanted to feel safer at home.
With the help of her husband, Marie imagined a device that could be attached to the front door. It would offer four small holes, and through these, a video camera on the inside could view visitors of different heights as the host turned the camera up and down. The camera was connected to a television monitor inside. A microphone on the outside of the door and a speaker inside allowed the host to interrogate a visitor, while an alarm could inform police via radio.
Closed-circuit television (CCTV), invented during World War II for military use, was not widespread in the 1960s, and the Browns proposed using the technology to create the first modern home security system. They filed a patent for their device in 1966, citing(提及) Marie as the lead inventor. It was approved three years later. “The equipment is not in production,” The New York Times reported, “but the Browns hope to interest manufacturers and home builders.” That never happened. “The cost of installing(安装) it widely would be pretty high,” says Robert McCrie, an emergency management expert at John Jay College of Criminal Justice in Manhattan.
Marie’s invention, though it didn’t benefit them financially, would earn the Browns a measure of recognition in the technology world: The predecessor(前身) of today’s home security systems, it has been cited(引用) in 35 U.S. patents.
1. What can be learned about Marie?A.She lived in a dangerous neighborhood. | B.She worked as an electronics technician. |
C.She went home with her husband every day. | D.She was afraid of making an emergency call. |
A.Attract. | B.Frighten. | C.Welcome. | D.Question. |
A.It was considered to be a silly invention. | B.It was thought little of by the then police. |
C.It was too expensive to be mass-produced. | D.It was illegal to be used by ordinary people. |
A.They contributed a lot to CCTV. | B.They were generous and responsible. |
C.They helped reduce crime in the 1960s. | D.They were intelligent and worthy of respect. |
10 . When I was young, my understanding of life was simple. This made it easier for me to deal with the world around me. As I grew up, things seemed more
When I try to teach my daughter important
When I was seven or eight, I played at my cousin’s house with his toys. His family was better off, and he had many more toys. There was one in particular that I’d always desired, and I
I hope to help my daughter
A.important | B.embarrassed | C.delicate | D.complex |
A.aim | B.view | C.experience | D.expectation |
A.basics | B.lessons | C.subjects | D.choices |
A.put down | B.cut down | C.break down | D.turn down |
A.passion | B.faith | C.respect | D.desire |
A.try | B.accept | C.compete | D.forgive |
A.cruel | B.worse | C.trapped | D.motivated |
A.runs | B.goes | C.witnesses | D.follows |
A.fetched | B.arranged | C.slipped | D.fitted |
A.doubted | B.promised | C.questioned | D.sensed |
A.lied | B.stolen | C.changed | D.cheated |
A.suffer | B.improve | C.fade | D.spread |
A.gave | B.left | C.pulled | D.handed |
A.admit | B.avoid | C.commit | D.recognize |
A.enemies | B.participants | C.coworkers | D.candidates |