1、2020西城一模AWhat it doesThe self-cleaning door handle is combining with advanced photocatalytic ( 光 催 化 ) and blacklight technology. A light source activates the doors handle coating, telling it to start cleaning. It can minimize the risk of infection by contact and improve the cleanliness of a space.
2、How it worksThe working principle of the product is that a thin advanced photocatalytic coating can effectively decompose bacteria ( 细 菌 ) on the surface of a substance. A consistent UV light sourceinside a transparent glass door handleis required to activate the doors handle coating on the outer su
3、rface for disinfection, so a generator is used to provide electricity to light up a UV LED lamp by the motion of an opening and closing door. Then, the door handle can clean by itself.Design processWe made the first version by using stainless steel. However, it caused the door handle to be heavier.
4、Then, we tried aluminum, which made it light and easy to fix. We also improved the generator output which effectively turned energy from door movement into a light source.How it is differentOur innovative design is simple, effective, and attractive. It has an elegant smooth shape, and its minimalist
5、 appearance stands out in todays world of inventions. Nowadays, people use chemical cleaning materials to clean up public areas but it harms the human body. Our design can be used for a long time and is effective. It can self-clean after each use. In the door lock and door handle market, it is a uni
6、que design because there are no similar products.Future plansIn the future, we will commercialize the product and hope that it can compete on the market with similar products. We are going to connect with public properties, for example, shopping malls, hotels, hospitals and public restrooms, where t
7、he risk of spreading infection is higher.AwardsIn addition to winning the James Dyson Award, it has also received the Gold Award, and in 2016, it was featured in the 44th International Geneva Inventions Exhibition.31. How does the self-cleaning door handle function?A. It controls the door movement a
8、utomatically.B. It minimizes the risk of infection by less contact.C. Chemical cleaning materials are used to clean it up.D. The light source tells the door handle coating to clean itself.32. Compared with the first version of the product, the present one is .A. safer and cheaperB. cleaner and easie
9、rC. less heavy and more effectiveD. more attractive and expensive33. What do we know about the new invention according to the passage?A. It has been widely used in public areas.B. It has received recognition for its innovation.C. It is quite competitive among similar products.D. It will replace trad
10、itional chemical cleaning materials.BThis little South American Magellanic penguin swims 5,000 miles, to a beach in Brazil, every year in order to be reunited with the man who saved its life. It sounds like something out of a fairy tale, but its true!71-year-old retired brick worker Joao, who lives
11、in anisland village just outside Rio de Janeiro, Brazil, found the small Magellanic penguin lying on rocks at his local beach in 2011. The penguin was covered in oil and running out of time fast. Joao rescued the penguin, naming it Din, cleaned the oil off its feathers and fed him a daily diet of fi
12、sh to rebuild its strength. After a week of recovery, Joao attempted to release the penguin back into the wild. However, Din had already formed a family bond with his rescuer and wouldnt leave.“He stayed with me for 11 months and then, just after he changed his coat with new feathers, he disappeared
13、,” Joao recalls. “I love the penguin like its my own child and I believe the penguin loves me,” Joao told Globo TV. “No one else is allowed to touch him. He pecks (啄) them if they do. He lies on my lap, lets me give him showers, and allows me to feed him.”Professor Krajewski, a biologist who intervi
14、ewed the fisherman for Globo TV, told The Independent: “I have never seen anything like this before. I think the penguin believes Joao is part of his family and probably a penguin as well.”However, environmentalists warn that, while hundreds of the Magellanic species are known to naturally migrate (
15、迁徙) thousands of miles north in search of food, there has been a worrying rise in the phenomenon of oceanic creatures washing up on Brazils beaches. Professor David Zee from Rio de Janeiros State University, said the increase is due in part to global climatic changes. Professor Zee added that sea an
16、imals face increased danger from leaked tanker oil.Luckily the ending for Joao and Din has been a happy one, even though it is illegal in Brazil to keep wild animals as pets.Professor Krajewski said: “Professionals who work with animals try to avoid relationships like this occurring so they are able
17、 to reintroduce the animal into the wild. But in this single case the authorities allowed Din to stay with Joao because of his kindness.”34. Every year Din swims a long distance to a beach in Brazil to .A. avoid being killedB. meet his rescuerC. escape from ocean currentsD. find much more fish35. Wh
18、en Din was found in 2011, .A. he was dyingB. he was running on the beachC. he was resting on a rockD. he was cleaning oil off his feathers36. What can we learn about Joao from the passage?A. He is not allowed to keep the penguin as a pet by the authorities.B. He overprotects the penguin by keeping h
19、im away from others.C. His contact with the penguin is encouraged by professionals.D. His kindness wins the penguins trust.37. The story in the passage mainly shows .A. the environmental impact on wildlifeB. the love between humans and wildlifeC. the tendency of wildlife to bond with humansD. the pr
20、otection of threatened wildlife by mankind2020海淀一模AWhat are some of your favourite memories of the University?In preparation for each falfs 50th reunion, members of the milestone class are asked to recall campus memories for an annual Memory Book.Heres a small selection of some memories from the Cla
21、ss of 1969.Phyllis Jo Baunach.I cannot forget the endless hours studying, researching, and learning in the middle of the musty books in the stacks. We did everything by hand! But the joys of ideas coming to life and understanding thorny concepts are priceless.Additionally, I cannot forget the joyful
22、 hours of Co-Kast rehearsals fbr student-written-and- directed plays, and the thrill of audiences5 responses to our efforts. Nor will I ever forget taking voice lessons at the Eastman School of Music. This course gave me confidence to try new musical approaches and to think on my feet.,Paul Boehm. m
23、any sweet and lasting memories一five feet of deep snow, getting stranded on the Thruway, music at Hylie Morriss Alley, and, of course, I met my wife of 48 years, Ellen Blazer Boehm from the Class of 1972, when she was a freshman and I was a senior. As a five-year chemical engineering major, I had one
24、 elective to spare, and Ellen said, How about oceanography?9 So, I enrolled in oceanography with Dr. Taro Takahashi （the famous climate scientist）, which awakened my environmental juices, and changed my professional direction.,Farel Vella McClure.I truly loved my four undergraduate years at the Univ
25、ersity of Rochester. In fact, I loved it so much that I stayed an extra year to get a masters degree! I was very fortunate to have been totally immersed in student life on campus. My memories include campaigning and winning a seat on the student government during my freshman year. Other irfemories i
26、nclude the Susan B. Anthony banquet, and sleeping in the comfy chairs in the library. I was also privileged to be selected as a student representative on the design team for the new Wilson Commons. I. M. Pei, the famous architect who designed the Louvre Pyramid, was the architect for Wilson Commons.
27、 We even visited his offices in New York to see the master9 at work.,31. According to the passage, Paul Boehm .A. married Ellen Blazer in 1972B. disliked his major in universityC. became a famous climate scientist laterD. discovered his interest in environmental science32. What can we learn about Fa
28、rel Vella McClure?A. She was a world-famous designer.B. She was active in school activities.C. She had a hard time getting her masters.D. She once met I. M. Pei at the Louvre Pyramid.33. The three people all talked about .A. their beloved professorsB. their great friendshipC. their learning experien
29、cesD. their beautiful campusBEarly February, I was flying up to Ohio. Well prepared, I had everything in my favour一fuel for five hours, charts in order, my flight plan on my lap, and a beautiful clear sky.I was wrong.I had heard about Alberta Clippers coming out of Canada. I knew all about themhow a
30、n entire air mass was streaming along at over sixty miles an hour.That morning, the Weather Briefer informed me that an Alberta Clipper was going over Chicago about,the time I got to the airport. Chicago was some 400 miles from my destinationnot a factor, or so I thought. That was the first hint I m
31、issed.The controller called and asked if I wanted to adjust my flight plan. I did the check and everything was in the green. So I told him no. Twenty minutes later the controller called again asking whether I wanted to adjust my flight plan. I checked everything. All was fine. I ignored that hint. I
32、 was fooled by the smooth air and limited experience with a rapidly moving air mass that was not changing violently. The Alberta Clipper was clipping along.The first blast of turbulence （气流）struck my plane. I got slammed into the roof, and then slammed sideways hitting the window with such force up
33、my nose that I started bleeding.After a 2-hour flight of 100 miles, I realized fuel was now an issue. So was landing. I called Flight Following. We figured out the airport I could land.The engine stopped. So did my heart. There is no quiet as quietly stunning as this one at such an altitude. I had r
34、un out of fuel in the left tank, and only a little in my right tank. The engine quit for a second time. I declared an emergency. I was told that I might get another few minutes of fuel if I gently banked the airplane. Luckily, it worked. Then, the engine quit for the last time. I was a glider now. I
35、 made a long lazy spiral descent. Down I went. I stopped at the very end of the runway.I made so many mistakes, missed so many clues, and showed my ignorance so much that I beat myself up over and over again in my mind. I learned textbook descriptions of Alberta Clippers and real-life experience wit
36、h one are totally different. I will never forget the sound of that silence.I flew home the next day. Older. Wiser. Humbler. Lucky.34. We can know from the passage that Alberta Clippers .A. can bring snowstormsB. are quick-moving air massesC. are violently changing air pressureD. can lead to a sudden
37、 temperature drop35. What mainly led to the authors missing all the hints?A. His lack of flying experience.B. His poor preparation for the journey.C. His misjudgement about the air mass.D. His overconfidence in his piloting skills.36. Which is the right order of the events?a. I declared an emergency
38、.b. My airplane was running out of fuel.c. I insisted on carrying on my flight plan.d. I was thrown to the roof by the violent air mass.e. I slightly banked my airplane and made a landing.A. dcbeaB. dceba C. cdabe D. cdbae37. The passage describes .A. a rewarding training B. a narrow escapeB. a pain
39、ful exploration D. a serious accident2020朝阳一模AMusic for Life Learning music is important for the educational and personal development of young people!Learning an instrument: how do pupils choose?All our teachers are highly qualified and experienced musicians,and pupils can learn to play a wide range
40、 of instruments, from the keyboard to the drums(鼓). We have open days when new pupils who are unsure which instrument to choose can come to the centre. They are able to speak to teachers about which instrument might be best for them, and they can also see and hear classes in action.Who is responsibl
41、e for buying the instruments?Parents usually have to provide instruments. But parents of beginners are advised not to buy an instrument until they are told that a place is available. They should also find out from the teacher the most suitable type of instrument to get.When and where do lessons take
42、 place?Lessons are available in many schools, usually during the day. If there is no lesson available for a particular instrument in a particular school, other arrangements can be made at one of our music centres for lessons on Saturday afternoons or weekday evenings.How are pupils taught?Pupils can
43、 learn in small groups, in classes or individually, depending on their needs. Small groups of three pupils have lessons that last thirty minutes. Class lessons last forty-five minutes and have at least ten pupils. Individual lessons are offered only to pupils who have some experience.Starting young:
44、 when can pupils begin?Children are never too young to become interested in music. We have special “Musical Youth” classes for children from the age of 3 to 8. These are designed to encourage young children to enjoy music through a variety of activities including singing, musical games, listening an
45、d movement. “Musical Youth” classes take place on Saturday mornings with groups of about 18 children. A parent or other adult must attend each session, and they are encouraged to sit with their children and help them with the activities.31. What can we learn from the passage?A. New pupils can see cl
46、asses on an open day.B. Pupils can learn special instruments on Sundays.C. Parents must accompany pupils during the learning process.D. Teachers at the centre can provide the right instruments for pupils.32. What is the best choice for children with some experience?A. Lessons for groups of ten.B. In
47、dividual lessons.C. Lessons for small groups of three.D. Special “Musical Youth” classes.33. The passage is intended for _.A. teachersB. parentsC. musiciansD. pupilsBNenad Sestan was working in his office one afternoon in 2016, when he heard his lab members whispering with excitement over a microsco
48、pe. He realized something beyond their expectations was happening.The researchers, at Yale School of Medicine in New Haven, Connecticut, had found electrical activity in brains taken from dead pigs. With that shocking result, Sestan realized what had started as a side project to find ways to better preserve brain tissue for research had changed into a discovery that could redefine our understanding of life and death.The excitement soon turned to concern, when the researchers thought they saw widespread, consistent electrical activity
