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Something significant is happening to the world population-it is aging. The median(中位数的)age of an American in 19501.(be)30-today it is 41 and is expected2.(increase)to 42 by 2050. For Japan, the3.(number)are more striking-22 in 1950, 46 today and 53 in 2050. In 2015, one in 12 people around the world were over 65；by 2050, it will be one in six.
This aging of the population is driven4.two factors. The first is declining birthrates, which means old generations are large5.(compare)to younger generations, and so, on average, the population becomes6.(old)than before. This is7.(particular)true in the US. The second reason is that people are living longer. A child born in the US today has8.very realistic chance of living beyond 100 and needs to plan accordingly.
People tend to focus on the first factor. However, greater attention should9.(place)on longevity(长寿). It isn't just that people are, on average, living longer. It's also that they are on average healthier10.more productive for longer. Therefore, they can work for longer, consume more and in general be a boost to the economy.
英语语法填空中等难度题
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It is reported that many middle school students are just not getting enough sleep, especially during the school week. The problem seems to get 1. (bad) as they get older. Year 7 students sleep 8.4 hours in a school night, and Year 9 students only 6.9 hours.
It’s also reported that not getting enough sleep can cause 2. ( (problem) in a student’s life. Many students fall 3. (sleep) in school or while doing their homework, so it is not 4. (surprise) that they get lower grades than those who get enough sleep. Scientists suggest nine hours a night for middle school students.
Of the students who feel 5.(happy) and nervous, 73% don’t get enough sleep at night.
Why aren’t students getting enough sleep? Many students have one of the 6. (follow) things, like telephone, television, or computer in their bedrooms. Using them on a school night not 7. (takes their time away from homework, but also makes 8. difficult for them to sleep. As a result, many students can’t sleep before 11 p.m, yet they must get up early 9.(go) to school.
Scientists also suggest students should not do exciting activities for an hour 10. bedtime.
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As schools close and millions of people across the United States work from home, the promise of companionship is prompting(促使) some to take in animals. The1.(decide) to adopt pets flies in the face of some conventional wisdom that discourages adding a new animal 2.a household during a stressful or busy time of the year, such as the holidays. But so far the novel coronavirus3.( create) an almost parental leave-like situation for many people.
"There's no doubt4.animals provide incredible comfort and companionship, especially during times of crisis- and they5.(certain) appreciate the attention- so we encourage people 6.(continue) to adopt animals in need," said Malt Bershadker, president and chief executive of the American Society for the Prevention of Cruelty to Animals.
People are bringing home all kinds of living creatures for companionship during an unprecedented(空前的) time of social isolation(隔离), and they're sharing7.(photo) or social media to provide a break from darker news.
Pets can also entertain younger family members at home- -Kenneth Lynch and Lauren Wakefield bought a blue-and-silver betta fish for their two young children to help develop8.strong sense of responsibility with feeding it and9.( clean) the tank. This will help them "occupy some of their time in a more10. ( health) manner" while they are home from school, Lynch said.
英语语法填空中等难度题查看答案及解析
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American schools begin1. September after a long summer holiday. There 2. (be) two 3. ( term) in a school year. The4. term is from September to January and the second is from February 5. June. Most6. (America) 7. (child) begin to go to school when they are five years old. Most students are seventeen or eighteen years old when they finish high school.
High school students take only four or five 8. (subject) each term. They usually go to9.same classes every day, and they have homework for every class. But they have many interesting10. (activity) after class.
七年级英语阅读单选中等难度题查看答案及解析
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High school is coming with wishes and hopes! Do you want to make any changes in high school? Share your high school resolutions 1.us.
Wang Yeqing
I will learn to play the piano in high school. I 2.(be) not into it until I saw my neighbor playing it on my 3.(twelve)birthday. She was so elegant(优雅的)4.she was playing the piano. I want to be as elegant 5. her.
Zhang Chenxi
I want to get good grades in the coming high school entrance exam. Math is my6.(poor) subject of all. I will spend two more hours 7.(improve)it in the new high school every day.
Huang Wenjie
Kangaroos are my favorite animals. My parents said they8.(plan) a family trip to Australia if I became one of the top ten9.(student)of my grade. So in the high school, I will be working 10.(real)hard because the kangaroos are waiting me on the other side of the world!
九年级英语语法填空中等难度题查看答案及解析
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We decide to give a gift to our school for her birthday before 1. (graduate). We had a heated discussion 2. what gift to give. We think we should do 3. we can to help our school. Some advise 4. (plant) more trees on the coming Tree-Planting Day to make our campus more beautiful, 5. others hold the view 6. we should introduce the history of our school to friends, schoolmates or relatives. Besides, we can show 7. around our school to make her better 8. (know). As far as I am concerned, I'd like to study even 9. (hard) for a better university. In this way, our school will be proud of us and thus we can make an even greater 10. (contribute) to her.
高三英语其他题中等难度题查看答案及解析
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Cambridge Dictionary has declared "upcycling" as 1. Word of the Year 2019. The word refers to the act of making new items out of old or 2.(use) things or waste materials.
3. number of times "upcycling" has been looked up on the Cambridge Dictionary website 4.(rise) by 181% since December of 2011, 5. it was first added to the online dictionary. In the past year alone 6.(search) for the word have doubled.
Wendalyn Nichols, Publishing Manager of Cambridge Dictionary, believes that the word's recent popularity is being caused by people's growing 7.(aware)of climate change and other environmental issues. “8.(stop) the gradual process of climate change, let alone changing it around 9. (absolute), can seem impossible at times. Upcycling is a concrete action a single human being can take 10. (make) a difference," he said.
Many other words on the shortlist for Word of the Year 2019 reflect the same concern with the effects of climate change, including "carbon sink" and "compostable".
高三英语语法填空中等难度题查看答案及解析
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The representatives from six major international film festivals attended a 1. (week) programme. Maria says that the Venice Film Festival is the oldest film festival in the world, 2. is an annual festival that 3. (begin) in 1932. Kathy tells the audience that the Sundance Film Festival deliberately boycotts all Hollywood films and that they don’t foresee ever including 4.. Isabel says Cannes is 5. festival that can make films famous, at which many films 6. (show) to the public for the first time. At Berlin International Film Festival, Hollywood films are 7. the minority, films that are likely to be overlooked at other festivals have a real chance of 8. (become) champions. Mike thinks the Toronto International Film Festival is the 9. (two) largest festival in the world. Xu Li says the Shanghai International Film Festival has a good reputation worldwide and they have 10. (entry) from many different countries.
高二英语语法填空困难题查看答案及解析
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American police 1. (step) up their search for Justin Foster, who went missing last Friday night. He didn’t show 2. for lunch the next day. When the event 3. (occur), Mrs. Forster was worried and told her husband to call the police.
Witnesses said they saw Justin walking towards his home. Justin’s sister, Kelly heard him put on his favorite CD and she also saw a large spaceship 4. (fly) outside. She heard Justin shout.
Mavis Wood said that the aliens once taken her 5. the UFO and they did some research on her. The whole research was frightening just like a terrible dream.
Police found that Justin 6. return home. But they have not found the evidence 7. Justin was taken away by aliens. Detectives Sam Peterson, 8. took charge of the case, said that they were looking into other 9. (possible) too and they would not give up10. they found out what happened.
高一英语语法填空中等难度题查看答案及解析
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The History of Air Conditioners
The first practical cooling system for use in industry 1. (invent) in 1902 by Willis Carrier in New York, the USA. He continued to improve 2. （he) invention and, in 1928, developed the first air conditioner for home use. In 1939, an American car company introduced the first air conditioner for cars, 3. (make) driving more comfortable.
After World War II many American 4. (company) began making air conditioners and, beginning in 1950, many homes in the USA were equipped 5. central air conditioning. Central air conditioning uses a single unit6. （heat) or cool a whole house. With this, people could escape the heat of summer and the cold of winter no matter 7. they were in the house.
In the 1970s, electricity 8. （become) more expensive, so people developed 9.(good) air conditioners to save money. Later, the cooling gas in air conditioners was found to pollute the environment, so engineers have been working to produce air conditioners more friendly to the environment 10. the 1980s.
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Austrian author Peter Handke collected the 2019 Nobel Prize in Literature while the 2018 award, which 1.(postpone)last year, went to Polish author Olga Tokarczuk.
Handke “has established himself as one of the most 2.(influence)writers in Europe after the Second World War”. His works are filled with a strong desire 3.(discover)and make his discoveries come to life by finding new literary expressions for them, the Swedish Academy said. He 4.(write)many novels in the past decades, like Short Letter, Long Farewell, 5. a young Austrian writer travels across the United States in search of his wife. This novel is 6.(general)considered as one of Handke’s typical confusing works.
Tokarczuk became 7. winner of the 2018 award “for a narrative（叙事的）imagination that with encyclopedic（博学的）passion represents the crossing of 8.(boundary)as a form of life”. Her first work came out in 1993, and 9. was believed that her third novel Primeval and Other Times marked her major breakthrough. In 2018, she was awarded the Man Booker International Prize for her novel Flights, 10.(become)the first Polish writer to do so.
高三英语语法填空中等难度题查看答案及解析