根据句子意思，用所给单词的适当形式填空。
With the COVID-19 epidemic 1.(hit) China, many of you might want to know more about the virus. The disease 2.(cause) by a newly-found type of coronavirus. Coronaviruses are a large family of 3.(virus). 4.word “corona” comes from Latin and refers to crowns. When people first saw a coronavirus under a microscope, they found that its spikes (刺突) made it look like a crown. That’s 5.the virus family got its name. Some coronaviruses cause disease in humans; 6.（other）spread illness among animals, including camels, cats and bats.
We 7.(find) seven types of coronavirus that can infect humans so far. Four of them are common and cause respiratory (呼吸道的) illnesses 8. mild（轻度的） flu. Rarely, animal coronaviruses can evolve (进化) and then spread among people, such as with Middle East respiratory syndrome (MERS，中东呼吸综合症) and severe acute respiratory syndrome (SARS，严重急性呼吸综合症). Novel coronavirus, 9.was first found in Wuhan, is the 10.(seven) one.
Antarctica(南极洲) is known for being a vast land of ice and snow, a place too cold for most life. Despite (尽管) this, the continent is slowly starting to turn warm. According to the Guardian, the Antarctic has registered (登记) a new high temperature for the first time on record, prompting fears of climate instability(不稳定性) in the world’s iciest place.
On Feb 9, Brazilian researchers at Seymour Island reported a temperature of 20.75℃ on the icy continent of Antarctica. It was almost a full degree higher than the previous record of 19.8℃, taken on Signy Island in January 1982.
This record-breaking reading was taken at a monitoring (监测) station in the northern part of Antarctica. According to Brazilian soil scientist Carlos Schaefer, the temperature was documented during a 20-year-long research project. The focus of this project is to study the effect that climate change has on the permafrost (永久冻土) within the region. Permafrost is soil that stays frozen for at least two years. Although this is a first record high for Antarctica, Schaefer stressed that “We can’t use this to anticipate (预测) climatic changes in the future. It’s simply a signal that something different is happening in that area.”
But in fact, the last high temperature reading was in the 19℃ range. These higher temperatures can cause ice and glaciers (冰川) in Antarctic regions to melt. The Antarctic peninsula (半岛) —the long finger of land(狭长地带) that stretches towards Argentina（阿根廷）—is most dramatically affected. Scientists saw glaciers that have retreated by more than 100 meters in Discovery Bay where the snow melted in little more than a week, leaving dark exposed rock. This melted ice leads to a rise in sea levels that can threaten the safety of coastal areas. It’s believed to be behind an alarming decline of more than 50 percent in chinstrap penguin (帽带企鹅) colonies, which are dependent on sea ice.
Like American writer Ernest Hemingway once said, “The Earth is a fine place and worth fighting for.” We should do everything we can to help save our planet. Otherwise, it may become too hot for us to fix.
1.What did Brazilian researchers report on Feb 9?
A.Signy Island is the warmest region in the Antarctic.
B.Antarctica hit a record high temperature of 20.75℃.
C.The average temperature of Antarctica ranges from 19.8 C to 20.75℃.
D.Antarctica’s new record temperature is a full degree higher than the previous decade.
2.What’s the main purpose of the 20-year-long research project?
A.To predict possible climatic change in the future.
B.To monitor Antarctica’s contributions to world climate change.
C.To explain why the permafrost may cause glaciers to melt.
D.To examine how the permafrost is influenced by climate change.
3.What does the underlined word “retreated” probably mean?
A.Moved backward. B.Increased in size.
C.Covered a certain area D.Stretched in an opposite direction.
4.According to the text, the melted glacier may lead to________.
A.the pollution of ocean water B.the release of various viruses
C.threats to penguin habitats D.disappearances of coastal cities
“Feel bored staying at home? So does the virus. If you stay longer, the virus will be bored to death.” This is how Zhang Wenhong asked people to stay indoors during the outbreak. Zhang is head of the infectious diseases department (感染科) at Huashan Hospital Affiliated with Fudan University in Shanghai. He also works as head of the Shanghai expert team that treats novel coronavirus pneumonia（新冠肺炎）. These days, Zhang has become an internet celebrity (网红) due to his funny and frank way of talking.
He first caught people’s attention in late January, when he asked the members of the Communist Party of China ( 共产党员) in his department to go to the frontline hospitals. His reason was simple: They have “vowed (宣誓) to put people’s interests first.” His straightforward way of speaking quickly won applause across the country. Meanwhile, as a Party member himself, Zhang set an example by checking on pneumonia patients every day. “I do it in person because I need to encourage other colleagues (同事),” he told the media.
Zhang believes in the traditional Chinese idea that “the best doctors prevent the disease (上 医治未病)”. That’s why he tries his best to spread scientific knowledge on how to prevent the epidemic. His sense of humor has made it easier for the knowledge to reach the public. He and his team also update their WeChat account every day with timely analyses of the epidemic to drive away public worries. One of his articles got more than 10 million hits.
But Zhang might not care about his sudden fame. When asked about his feelings after becoming famous, Zhang told the media, “Don’t pay attention to me. Pay attention to Wuhan. I’m not a celebrity. I’m a doctor.”
Zhang Wenhong’s quotes（引述） go viral online
“Everyone is a soldier. You’re not just quarantining (隔离) yourself at home, but combating (战斗) the virus.”
“You are not a doctor, but what you do is more important than what doctors do.”
“When you speak less, your thoughts spring (涌出). Staying indoors will bring you benefits.”
1.What won Zhang Wenhong sudden fame on the internet?
A.His medical skills. B.His way of speaking.
C.His personal stories. D.His special treatments.
2.What do we know about Zhang Wenhong?
A.He is not a CPC member.
B.He put people’s interests first.
C.His straightforward way of speaking offends some people.
D.He encouraged his colleagues to stay away from patients.
3.According to Zhang, the best way to stop the virus is________.
A.to prevent it B.to develop a vaccine
C.to check patients D.to do more research
4.We might describe Zhang Wenhong as_________.
A.a strict person B.an irresponsible man
C.a superstar D.a respectable doctor
The third preparatory（预备的） meeting for the Shenzhen First Session International Hydrogen and Fuel Cell（燃料电池） Leaders Summit was held on November 28 in Shenzhen, Guangdong Province. Nearly 100 experts attended it. The theme of the meeting was “Energy revolution（革命）, hydrogen (氢) changes the world”.
The meeting focused on the use and safety of hydrogen. In the meeting, experts discussed the direction of developing the hydrogen industry in China, the basic research of hydrogen, the development of hydrogen fuel cell technology, the new way to develop hydrogen and fuel cells in Shenzhen and so on.
Hydrogen is secondly energy. And it’s produced by primary energy (一次能源). For example, if we use some energy to produce electricity, then we can use the electricity to produce hydrogen. Hydrogen fuel cells have a few advantages. Firstly, they take only a few minutes to recharge(充电）. Secondly, they aren’t affected by temperature. Thirdly, hydrogen is very safe, safer than gasoline. At present, because of climate change, the world is developing this energy. It doesn’t contain carbon. Many countries have made a plan for hydrogen. Japan, Germany and the US are the leading ones. China has used different policies to encourage the development of hydrogen since 2016. It will become a kind of very important energy like electricity in the future.
Yu Yiping, chairman of the board of directors at Scientific Valley Group, said, “In order to prepare the summit, we’ve done lots of work. We went to other countries, such as Germany, France and the US, to learn experience. We also went to California, the US to learn about the hydrogen production, storage and transportation, and the construction of hydrogen refueling(补给燃料） stations.” Du Zheng, vice director of the Nanshan District Science, Technology and Innovation Bureau, said, “We are pushing forward the development of hydrogen in three ways: the planning of the hydrogen industry, the policy guidance and the building of some basic facilities, such as hydrogen refueling stations.”
1.What does Paragraph 2 mainly show us?
A.Who attended the meeting. B.How long the meeting lasted.
C.The topics discussed in the meeting. D.The decisions made in the meeting.
2.Why is hydrogen secondary energy?
A.Because it is very safe.
B.Because it is clean energy.
C.Because it was developed not long ago.
D.Because it can be made from primary energy.
3.How many advantages of hydrogen fuel cells are mentioned in Paragraph 3?
A.Two. B.Three. C.Four. D.Five.
4.Which of the following is TRUE?
A.Hydrogen has been widely used in people’s life in China.
B.The members of Scientific Valley Group once went to England for study.
C.The development of hydrogen will be pushed in four ways.
D.The Chinese government strongly supports the development of hydrogen.
We all know that zebras have stripes (条纹). However, both animal experts and zebra fans all over the world haven’t known the reason for centuries. But now it appears that some researchers in California may have finally solved the age-old mystery!
In order to find the reason why zebras have stripes, a team of scientists led by Professor Tim Caro set to work. They began by comparing the thickness, location, and the stripes on seven species of zebras that live in various geographic locations. They then examined some factors that may continuously affect zebras, such as their natural enemies, the temperatures of their living places and the small insects around them like flies. To their amazement, the only factor that was linked with the stripes was the annoying flies. The zebras with the most obvious and the largest number of stripes mostly live in areas with more flies.
But that led to another question: why are zebras the only kind of animal smart enough to develop the stripes? After all, there are plenty of other animals like horses and donkeys, which are facing the same trouble. Upon closer examination of the black and white animals, the researchers noticed that unlike the others, zebras have very short coats of hair, making them particularly easy to be bitten (咬) by the flies!
While Tim says that this mystery is finally solved, it has given rise to a new one. Why are these fearless flies that have no fears of attacking animals that are thousands of times bigger, afraid of black and white stripes? If you have any answer, be sure to add it to the comments below. It may help the professor with his new research!
1.What does the underlined phrase in Paragraph 2 mean ________?
A.was connected with B.was different from
C.was similar to D.was harmful to
2.Why are zebras easy to be bitten?
A.They have very short coats of hair. B.They have a special smell.
C.They are very tall and strong. D.They live in dangerous places.
3.What will Tim study next?
A.Why flies like attacking zebras.
B.Why flies don’t attack horses or donkeys.
C.Why flies like attacking bigger animals.
D.Why flies are frightened of black and white stripes.
4.What does the passage mainly talk about?
A.The living habits of zebras. B.How zebras deal with flies.
C.Why zebras have stripes D.People’s comments on zebras.
For the most part of my life, I have lived in a small town in northern Arizona. As I got older, it seemed as if my town got smaller.
All things I could see in the town were bad. It looked ugly, small and was filled with terrible people. I wanted to be in new places with bigger chances and to meet new people. That was exactly what I did. I moved to the city of Phoenix to go to college and worked hard to achieve what I had dreamed of.
For the first year when I was away from home, I wanted to stay away and never go back. When people were taking a trip to my hometown, I would always question “Why would you like to do that? It’s so ugly.” All I had towards my hometown was negative feelings.
However, after being away for about three years, my perspective has completely changed. I have nothing but love for my hometown — its beauty, and the sentimental value (感情价值) that it holds.
After all, it’s where I’m from. Yes, there are bad things, but there are also some good ones: Dad raced the train on the way to school; Mum let us stop for ice cream every Friday after school to celebrate the end of the week; I walked around downtown with friends in high school, thinking we were cool.
It might take being away from something for you to truly appreciate it. It’s true when people say that distance makes the heart grow fonder(温柔的）. Now I visit my hometown every chance I get. Even if I am no longer living there, it will always hold a piece of my heart.
1.The writer probably thought his hometown was________from the first three paragraphs.
A.an attractive place for tourists B.filled with friendly people
C.the best place to live in D.a hateful place
2.What does the underlined word “perspective” in Paragraph 4 probably mean?
A.Dream. B.Opinion. C.Imagination. D.Habit
3.What’s Paragraph 5 mainly about?
A.How the writer missed his parents.
B.The writer’s sweet memories of his hometown.
C.Unhappy things that happened in the writer’s hometown.
D.Why the writer lost touch with his friends.
4.What does the last paragraph show?
A.People shouldn’t love their hometown for long.
B.People should leave their hometown.
C.The writer starts loving and valuing his hometown.
D.The writer won’t go back to his hometown.
