阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
A team of over 30 Chinese surveyors (勘探员) on Wednesday (Mav6, 2020) left a base camp at Mount Qomolangma for a higher spot on their journey 1. the peak, as they try to accomplish a task to remeasure the2. (high) of the world's highest mountain.
The team, 3. (consist) of professional climbers and surveyors from the Ministry of Natural Resources (MNR), 4. (seize) the current weather window and make an attempt for the summit at the 5. (good) time.
Professional surveyors are better at using the 6. (advance) instruments. 7. , the data they obtain 8. (be) more reliable, 9. (science) and convincing.
Due to the fact 10. the air flow is unstable as well as the windy and low-temperature conditions, surveying-oriented drones (无人机) cannot work at the summit of Mount Qomolangma at present.
阅读下面短文，从短文后各题所给的A，B，C和D四个选项中，选出可以填入空白处的最佳选项。
Shoes can tell you a lot about a person. Winsion ______ believed in this. He could fit people into different classes simply by the shoes on their feet.
One day, Winson was ______ on his regular bench at the train station, watching passers-by. Suddenly he ____ something different. Two bare feet walked past, making a (n) ______ sound on the floor. Their bareness made Winson feel ______ by surprise. He had seen many strange feet, but had never seen such feet without any cover. He ______ what kind of man could completely ______ the basic rules of society, sticking his bare feet out for all to see. "A ______ man who was crazy and bad-tempered perhaps."Winson thought.
Winson turned around on the bench and folded his arms tightly to ______ any possible touch. The man, however, took up the ______ made free by Winson's shrinking (退缩).
"It's a rough day, "the shoe-less man said, putting a plastic bag between them, "I had to ______ my shoes." He looked at his bare feet.
"It's my little girl's ______ ," he explained. "She's seven today. All she wanted was a cake, with her ______ on the top."
Out of curiosity. Winson ______ the bag to see the cake. It was a small white cake with the letters "A-m-e-l-i-a" on the top. "It's pretty, isn't it?" the man said, being aware of Winson's ______ . "I just got it for her at the cost of a pair of shoes, ______ you can see."
His ______ sounded like he was about to cry. Winson ______ his head and met the stranger's eyes. They were kind and beautiful eves, sharply contrasting with his bare and ______ feet.
The man was a great father. Winson was ______ of his bad judgement of the mar simply for his lack of shoes.
1.A.never B.almost C.unwillingly D.firmly
2.A.reading B.sleeping C.seated D.stuck
3.A.expected B.spotted C.achieved D.attempted
4.A.unclear B.unfamiliar C.noisy D.beautiful
5.A.overcome B.covered C.influenced D.inspired
6.A.asked B.knew C.wondered D.proved
7.A.explain B.keep C.change D.ignore
8.A.serious B.generous C.dangerous D.famous
9.A.require B.prevent C.lose D.bear
10.A.space B.time C.challenge D.suggestion
11.A.sell B.repair C.throw out D.find out
12.A.idea B.bag C.birthday D.toy
13.A.age B.name C.motto D.photo
14.A.pushed away B.took out C.looked through D.cleaned up
15.A.sorrow B.interest C.embarrassment D.kindness
16.A.so B.if C.but D.as
17.A.song B.story C.lecture D.voice
18.A.raised B.buried C.hit D.shook
19.A.white B.lovely C.disabled D.dirty
20.A.ashamed B.confident C.fond D.afraid
The past week was by no means an ordinary week, 1..
This Monday, the topic was brought up again by my parents during dinner. 2.. Seeing my hesitant look, Mom patted me on my shoulder and said that I still had enough time to think about it, her smile encouraging me to do more research.
Later that evening, I turned to the Internet for help. 3.. As a science student, law could be a good choice. Business and computer science were also attracting me. No sooner had I noted down the majors one after another than I crossed them all off immediately, because what I wanted was a profession that could make a difference in people’s lives.
4.. The moment “Role Models of Our Time” appeared on the screen, it caught my eye. The news story focused on superheroes-police officers, healthcare workers, deliverymen street cleaners-who guarded us selflessly to ensure our life ran normally. Suddenly, I realized my life's purpose-relieving pain and saving lives. And to pursue this call, I decided to specialize in medical science, just like my role models fighting against Covid-19 in Wuhan.
I jumped excitedly with joy at this idea. 5., saying that they would be so proud to see me in white. Now, determined to become a healthcare worker, whenever I start my schoolwork, I know I am studying for a noble cause.
A.Faced with so many choices, I seemed to be lost
B.Mom and Dad were also happy that I had found the compass for my future life
C.because of Chinese Ambassdor Liu Xiaoming’s exclusive interview on BBC’s Hardtalk
D.for I finally decided on my major
E.It occurred to me that although first discovered in Wuhan, Covid-19 was not originated from Wuhan
F.I had asked myself the same question many times, but still couldn’t make up my mind
G.The inspiration came unexpectedly with the CCTV News yesterday
Most people aren’t good at creative problem solving for two reasons: (1) They are not trained in how to be creative. (2) They don’t understand group strength well enough to harness (驾驭) their power to maximize group creativity.
A key element of creativity is applying existing knowledge to a new problem. The more people getting involved in solving it, the more knowledge there is to work on it. Unfortunately, research shows that the traditional brainstorming methods fail to achieve that goal. When groups get together to exchange ideas, they actually come up with fewer ideas overall than if they each had worked alone.
To fix this problem, you should consider the two stages of group problem-solving: divergence (分散) and convergence (集中). Divergence happens when the group considers as many different potential solutions as possible. Convergence happens when the various proposed solutions are evaluated and reduced to a smaller set of candidate solutions to the current problem.
The essential principle of group creativity is that individuals working alone diverge, whereas group members working together converge. In groups, once a member states a potential solution, that makes others think about the problem similarly. That is why groups working together diverge less than individuals working alone.
Therefore, be aware of when to diverge and when to converge. For example, early in the problem-solving process, have group members work alone to write down statements describing the problem. Then get them back to discuss their descriptions. The group discussion will lead everyone to accept one or a small number of these statements to work on — this is healthy convergence.
When starting to generate solutions, you again want divergence. Have people work alone to start. Then collect people’s initial ideas and send them around to others and allow the divergence to continue as everyone individually builds on the ideas of other members.
Finally, let the group discuss the resulting ideas. This discussion will gradually lead the group to converge on a small number of candidate solutions.
This simple method works effectively, because it respects what individuals and groups do best.
1.According to Para. 4, when a member presents an idea, others tend to_____.
A.think the other way round
B.follow his way of thinking
C.be more confident in their own ideas
D.be less willing to share their own ideas
2.What should group members first do early in the problem-solving process?
A.Discuss the problem.
B.Simplify the problem.
C.Put down group statements together.
D.Write down their individual descriptions.
3.How can each group member make changes to his initial solution?
A.By adding in collected evidence.
B.By reorganizing his own words.
C.By drawing on others’ ideas.
D.By making his statement briefer.
4.What is the author’s purpose in writing the passage?
A.To advocate a way to make group thinking more effective.
B.To demonstrate the difficulty in organizing group thinking.
C.To highlight the differences between divergence and convergence.
D.To show the advantage of group thinking over individual thinking.
This 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 it’s true!
71-year-old retired brick worker Joao, who lives in an island 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 fish 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 wouldn’t leave.
“He stayed with me for 11 months and then, just after he changed his coat with new feathers, he disappeared,” Joao recalls. “I love the penguin like it’s 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 interviewed 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 (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 Brazil’s beaches. Professor David Zee from Rio de Janeiro’s State University, said the increase is due in part to global climatic changes. Professor Zee added that sea animals 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 to reintroduce the animal into the wild. But in this single case the authorities allowed Din to stay with Joao because of his kindness.”
1.Every year Din swims a long distance to a beach in Brazil to ______.
A.avoid being killed B.meet his rescuer
C.escape from ocean currents D.find much more fish
2.When Din was found in 2011 ______.
A.he was dying B.he was running on the beach
C.he was resting on a rock D.he was cleaning oil off his feathers
3.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 him away from others.
C.His contact with the penguin is encouraged by professionals.
D.His kindness wins the penguin’s trust.
4.The story in the passage mainly shows ______.
A.the environmental impact on wildlife
B.the love between humans and wildlife
C.the tendency of wildlife to bond with humans
D.the protection of threatened wildlife by mankind
Mya Le Thai is a scientist studying at the University of California. She recently discovered a process that may result in batteries that last forever. Thai said she had been frustrated that the batteries for her wireless devices degrade(退化). Over time, they fail to charge fully. She decided to do something about that problem.
At first, she and her team thought about inventing a new battery. But as they experimented, Thai discovered something that might permit lithium-ion batteries(锂电池) to last forever. Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge. One of the reasons lithium-ion batteries degrade is their use of nanowires(纳米线) to carry electricity. Nanowires are extremely thin. Nanowires are extremely efficient carriers of electricity, which makes them useful in batteries. But Thai said their thinness also makes them weak. “Nanowires break over time,” she said. “That’s why they lose capacity.”
But, Thai had a theory: The nanowires might last longer if covered with a gel(凝胶). She and the team tested her theory. The team tried many coverings for the wires. PMMA was one of them. The PMMA coated nanowires showed no evidence of damage. The results suggest that batteries could last forever, without losing charging ability. Thai hopes to continue her research to understand why this gel works so well and to see if any other gel could create better results.
Mya Le Thai told VOA she is enjoying the publicity about her discovery. She said she never expected her research to get media coverage. “It’s kind of cool,” she said. “I’m really glad people are showing interest in my work and not just in the work itself, but also in technology and energy.”
1.Why did Mya Le Thai make up her mind to settle the problem about her wireless devices degrade?
A.Because her wireless devices couldn’t work at all.
B.Because she discovered a new kind of battery.
C.Because the batteries for her wireless devices couldn’t last long.
D.Because she wanted to show her new research.
2.What prevents lithium-ion batteries from lasting forever?
A.PMMA. B.Nanowires.
C.Electricity. D.Power.
3.How can the scientist make the nanowires last longer?
A.By using a gel to cover them. B.By cutting them shorter.
C.By making them longer. D.By using a gel to make wire.
4.What kind of person is Mya Le Thai?
A.Generous and wise. B.Honest and wise.
C.Honest and hard-working. D.Modest and creative.
