The expert says the farm helps reduce Beijing...

The expert says the farm helps reduce Beijing’s __________ on dirty energy that creates the capital’s heavy smog.

A.convenience B.confidence C.reliance D.importance

高二英语单项填空中等难度题查看答案及解析

International experts meeting in Australia say global carbon emissions (排放) can be reduced by more than 50 percent through simple energy saving measures. People at a conference in Australia, which increasingly relies on coal for power, say that reducing power consumption is an affordable way to both cut energy costs and reduce pollution.

While many nations turn to cheap and dirty energy sources, such as coal, to meet their increasing energy needs, analysts in Australia say the best way to meet those needs is to improve energy efficiency.

A range of simple solutions include using energy-efficient homes, household appliances and lighting, and driving electric cars. Encouraging homeowners and office workers to switch off their televisions and computers at the end of the day is also seen as an effective way to save electricity.

Grayson Heffner, from the Paris-based International Energy Agency, says reducing consumption could greatly cut global carbon emissions. He calls efficiency strategies (策略) the “soft giant” of clean energy.

“We forecast that energy efficiency will deliver something like three-quarters of the greenhouse gas emissions reductions over the next 20 years. So in the short term energy efficiency is the main way that we reduce greenhouse gas emissions but oftentimes it is not so importantly stressed in the discussions,” said Heffner.

Energy experts working in China say the government is making significant cuts in power usage.

Wan Xingwang, a Beijing-based representative of the Energy Foundation, a U.S. non-government organization, says the results have been impressive.

“In the past five years China achieved about 19.1 percent of energy reduction of its GDP. That translates to something like more than 600 million tons of coal savings,” said Wan Xingwang.

While most nations have some sort of government-sponsored energy efficiency programs, energy analysts say initiatives (主动性) by individuals and companies can also help cut demand.

Steven Nadel, executive director of the American Council for an Energy Efficient Economy, a non-profit group based in Washington, says other developing nations are recognizing the benefits of cutting power consumption and taking action.

1.To increase their energy supplies, many nations _____________________.

A．turn to new energy                      B．turn to cheap energy

C．develop solar energy                    D．introduce clean energy

2.Which of the following cannot help to reduce energy consumption effectively?

A．Using electronic products in small size.

B．Using more electric cars.

C．Turning off computers after work.

D．Building energy-efficient houses.

3.What can we learn from what Grayson Heffner said?

A．75% of the greenhouse gas emissions can easily be cut in the next 20 years.

B．Ways to reduce greenhouse gas emissions should be discussed.

C．Using clean energy is the strategy to cut global carbon emissions.

D．The key to reducing greenhouse gases in the short term is to improve energy efficiency.

4.According to the last two paragraphs, which of the following statements is true?

A．The programs reducing energy consumption shouldn’t be sponsored by individuals and companies.

B．All nations have government-sponsored energy efficiency programs.

C．It is time that all nations should combine their efforts to save energy.

D．Some developing nations are taking action to cut power consumption.

高二英语阅读理解中等难度题查看答案及解析

When Chinese researchers successfully figured out the genetic structure of the novel coronavirus in January, many people thought a vaccine(疫苗) would soon follow.　 1.　　

First, scientists must work together to understand the structure of the virus and develop potential vaccines to fight against it.　 2.　 After passing animal tasting, clinical trials of the vaccine are then done on humans. Finally the vaccine needs to be approved by officials before it can be made available to the public. All of the steps are necessary to make sure that the new vaccine is safe for people to use.　 3.　 With technological advancements and government funding (资金), the time it takes to develop vaccines can be reduce.

CEPI, an international organization that develops vaccine, for example, is funding programs that focus on making a vaccine for the novel coronavirus. About 35 companies and academic institutions, including the US company Moderna, funded by CEPI, are searching for a COVID-19 vaccine.　 4.　 Once a vaccine is ready, 100 million doses (剂量) could be made within a year, according to Modena’s CEO Stephane Bancel.

5.　 Not only do they help to save individual lives, but they also help the local and even the global community.

A.This is why a vaccine is developed.

B.But that’s a lot easier said than done.

C.However, experts say vaccines are unlikely to be available

D.Once these first vaccines are made, they are tested on animals.

E.Sometimes, this process can take as long as 10 to 15 years to complete.

F.Even though vaccines take a long time to develop, they are very important.

G.A few have begun testing in animals, while Moderna’s attempt has started human trials.

高二英语七选五困难题查看答案及解析

BEIJING changed the office hours of many institutions starting April 12 in the hope of reducing traffic jams during rush hour.

The new policy asked 800,000 employees to replace their former working schedule of 8:30 am to 5:30 pm with the new working hours of 9 am to 6 pm.

This is just one part of the Beijing municipal government’s plan to fight traffic jams. Starting April 1, daytime parking fees in 13 downtown areas were raised to encourage less driving. On April 2, the government announced limitations launched after the Beijing Olympics would be extended until April 2012. These ban Beijing’s 5.8 million drivers from driving one workday each week. The ban is based on the last number of the car license plate.

A multi-billion yuan fund has also been set up to build more underground ring roads in heavily populated areas. Major roads above ground will also be expanded.

According to Beijing’s traffic authorities, key projects include repairing major ring roads and expanding the subway network. The city will also create more taxi stops and bike rental stations, probably under the hundreds of overpasses (天桥) citywide.

Beijing’s fight against traffic jams is a smaller example of what is happening all around China. The central

government is now supporting new ideas that will change the future of Chinese roads.

Bus rapid transit (BRT,快速公交系统) is one such idea. Special bus lanes carry almost as many passengers as a subway system. They cost less and are becoming popular in many big cities. Now Beijing has five BRT lines

Shanghai is dealing with traffic problems by charging higher fees for license plates. The city is also controlling the total number of plates sold. Now, it is considering a plan to charge cars for entering the central business district, as London does.

Meanwhile, there are signs that Chinese are more aware of the serious problem of traffic. For example, there has been a sharp increase in the number of posts looking for carpooling (拼车) partners on major websites.

By the end of March, 2010, China had 192 million cars, according to the Ministry of Public Security.

1.The article is mainly about___________.

A. the fight against traffic jams all around the world

B. the increase of daytime parking fees in 13 downtown areas in Beijing

C. the Beijing municipal government’s measures to reduce traffic jams

D. news ideas that are likely to change the future of Chinese roads

2.According to the new policy, workday office hours in Beijing will be___________.

A. from 8:00 am to 5:00 pm   B. from 9 am to 6 pm

C. from 8:30 am to 5:30 pm   D. from 7:30 am to 4: 30 pm

3.The plans made by the Beijing municipal government to fight traffic jams include all the following except ____________

A. adjustments to office hours                       B. increases in daytime parking fees

C. the extension of the limitations launched after the Beijing Olympics

D. charging higher fees for license plates

4.According to the article, the BRT system ____________.

A. charges high                                         B. provides as fast a service as the subway

C. can carry almost as many passengers as the subway system

D. is more popular than the subway system in Beijing

5.The article tells us that____________.

A. the BRT system will become common China’s rural areas

B. the Chinese government is aiming at changing the future of Chinese roads

C. the Shanghai government has charged cars for entering the central business district

D. here are enough ways to deal with traffic jams in Beijing

高二英语阅读理解中等难度题查看答案及解析

Smart cities promise to bring better lives, faster transport, cleaner air and lower crime, all through the intelligent use of connected technology, said experts, and after huge investment in the field, China is leading the way.

“China’s smart cities market increases about 30 percent year-on-year in 2018, and all the provinces have begun development and construction for smart cities, with more to follow,” said an expert.

“Although most cities have started a smart city project, there is no globally unified thinking on the concept and operation of smart cities,” said Franco.

Alibaba is now involved in dozens of pilot projects across China, with its open AI (人工智能) platform Tianqing for the ET City Brain system officially launched in September. Set up by its cloud computing subsidiary (子公司), the Brain looks to make the city “think” through AI and cloud computing technologies, and help make the best of public services in real time.

Since introducing the technology, Hangzhou’s traffic jam has fallen from the fifth-worst in China in 2016, all the way to 57th place this year. “Now our experiments are mostly for government use, but we truly expect our open AI platform to enter more areas and help citizens live, work and entertain better,” said Hua.

In McKinsey Global Institute recent report Smart cities: Digital solutions for a more livable future, they find cities can use smart technologies to improve some key quality life by 10 to 30 percent — numbers that translate into lives saved, fewer crime incidents, a reduced health burden, and carbon emissions.

1.What can we say about the smart city?

A.Its concept has not been accepted by people.

B.It can be achieved only by lots of investment.

C.The worldwide standard for it has been established.

D.Its progress in China is among the best in the world.

2.What does the underlined part in Paragraph 5 refer to?

A.Traffic jam. B.Traffic flow.

C.AI platform. D.Public services.

3.Hangzhou is mentioned as an example to show that _______.

A.its traffic problem has been settled

B.the city has become more intelligent

C.its public services have greatly improved

D.it has made achievements in smart city construction

4.What is the best title for the text?

A.Smart Cities are on the Way

B.Outline of the Future Smart Cities

C.Hangzhou’s Construction of Smart Cities

D.Alibaba Contributes More to Smart Cities

高二英语阅读选择中等难度题查看答案及解析

Are people happier in nature with blue skies overhead and fresh green grass underfoot? Could noisy streets, crowded with cars and people, make us unhappy?

The possible mental health problems of city living affect a lot of people. The World Health Organization estimates(估计)that 56 percent of the world's population lived in urban areas in 2019. The WHO adds that that amount will increase to 66 percent by 2050. People often move to cities for better jobs and more cultural activities. But are they putting themselves at risk? Maybe. Experts at the American Psychiatry Association say that “natural environments or green spaces” do much good to our mental health.

Many studies have shown that nature can calm us and make us feel happy. Nature, experts say, can also help us learn better. And experiencing nature helps people recover from the mental tiredness that comes from day-to-day work. On the other hand, mental health experts say some research suggests that city living might hurt our mental health. But they cannot say exactly why.

What are the specific aspects of the urban environment which causes some people to develop mental illness? Andrea Mechelli, a doctor at Kings College, London, states, “There have been studies where people were literally taken out of an urban environment into a rural (乡村的) environment and their symptoms would improve. And we also see that the greater the city is, the greater the risk is.” Mechelli say that someone who lives in a city is three times more likely to develop psychological problem than someone living in the country.

Kings College researchers, along with city planners, land and building designers and others wanted to learn more about city living and mental illness. So, they created a smartphone app called Urban Mind. They say they wanted to understand how different parts of the urban environment affect mental wellbeing(健康).

The researchers found that being outdoors, seeing trees, hearing birdsong, seeing the sky, and feeling in contact with nature were associated with higher levels of mental well-being. They also found that these seeming effects of nature were especially strong in those individuals at greater risk of mental health problems. The Urban Mind Project team says it hopes “the results will inform future urban planning and social policy aimed at improving design and health.”

1.Why is the question raised in the first paragraph?

A.To introduce the topic of the text.

B.To show the background of the text.

C.To ask the readers to learn the study.

D.To raise the readers' interest in happiness.

2.What does Mechelli find during his study?

A.People are attracted by the blue skies and green grass.

B.People are more content with their city life.

C.More and more people are interested in taking risks in cities,

D.City people are more likely to develop mental problems than country people.

3.What is expected of the Urban Mind research result?

A.More people will choose to live in the countryside.

B.It will bring more concern about people s mental health.

C.It will contribute to future urban planning and social policies.

D.People will be helped to improve their mental illness.

4.What is the main idea of the text?

A.Urban Mind measures the level of mental wellbeing.

B.City living may be harmful to people’s mental health.

C.Living in the countryside is better than in the city.

D.Different scientists hold different opinions on the effects of city living.

高二英语阅读选择中等难度题查看答案及解析

Move towards nature when feeling down. Miracles do happen if you try. According to studies, walking among trees makes us relaxed. 1. There’s plenty of research showing the link between being in nature and being happy, but most of the research has focused on adults.

2. Explaining the motivation behind the study, researchers note that with environmental issues such as global warming, more studies are focusing on the relationships between humans and nature to find solutions to these problems, and the future of the planet lies in the hands of children and their actions. However, few studies focus on this aspect.

For the study, researchers worked with 206 children between the ages of 5 and 15. To measure how connected they were to nature, the kids were asked how much they enjoy activities like seeing wildflowers and wild animals, hearing sounds of nature and touching animals and plants. 3. They also found that the more concerned children were about the environment and nature, the more likely they were to be happy.

So, exposure to nature is related to active behaviors and happiness of children. What does that mean to adults? As we all know, children usually tend to follow adults’, especially their parents’ behaviors. That’s to say, when adults are outside and appreciate nature, kids learn by example. 4.

Researchers say that children need role models who can gently guide them to nature with excitement and an attitude of a lifelong learner. 5. What’s more important is that they spend time together with children by exploring a fun and safe environment.

A.It’s so adventurous going for a walk around trees.

B.Researchers will study more about the connection between children’s performance and nature.

C.And if parents enjoy being close to nature, so will their children.

D.Parents don’t have to be experts in environmental science or nature studies.

E.They found that the kids connected to nature were more likely to behave properly.

F.In a new study, researchers wanted to see if kids get the same benefits from being outdoors.

G.Even just smelling the trees helps reduce anxiety.

高二英语七选五中等难度题查看答案及解析

The Arctic will soon be free from ice, experts say. The change is bound to take place, but the global warming and climate change are changing the earth’s landscape (地形) rapidly，causing panic worldwide.

Experts say that the Arctic sea ice is melting (融化) quite faster than expected and it can affect not just the region, but Earth in general. A scientist even says that next year, or maybe the year after that, the Arctic will be free of ice.

Peter Wadhams, a scientist, said that the melting trend led to his statement. “Most people expect this year will see a record low in the Arctic’s summer sea-ice cover. Next year or the year after that, I think it will be free of ice in summer and by that I mean the central Arctic will be ice-free,” Peter Wadhams, director of the Scott Polar Institute in Cambridge, said in an interview with the Guardian. “You will be able to cross over the North Pole by ship,” Peter Wadhams added. He strongly believes that although some pieces of ice will remain, the Arctic basin may be free of sea ice in the next two years starting in the summer of 2017.

Wadhams’ study says that melting sea ice will have a great influence on the planet since the sea ice is more capable of reflecting (反射) sunlight compared to water that can only reflect 10% of the sunlight. Once the sea ice melts, the water can only reflect a small amount of sunlight. This means that the Earth will receive and absorb more sunlight, making the planet even hotter.

The year 2016 has already broken records of the hottest temperature ever recorded and the trend doesn’t seem to show any decrease in global warming. “It doesn’t look like the ice is healing and growing back,” Tom Wagner, NASA’s manager for cryosphere (冰冻圈) research said in a statement.

Like Wadhams, scientists and researchers all over the world are lecturing around to educate people to help lighten global warming that has already changed the planet’s landscape.

1.What does the author think of global warming and climate change?

A. Indifferent.        B. Anxious.        C. Unbelievable.        D. Misunderstood.

2.What can we learn from the second paragraph?

A. What experts say has caused worldwide fear and great anxiety.

B. The speed of the Arctic sea ice being melted is beyond expectation.

C. The melting of the Arctic sea ice only has a great effect on this region.

D. It’s impossible that the Arctic will be free from ice in one or two years.

3.Why would the Earth become even hotter if the sea ice melted? Because ________.

A. more water will cover the earth

B. there are more hours of daylight

C. the water will reflect more sunlight

D. more heat would be taken in by the earth

4.What is the passage mainly about?

A. According to some experts, the Arctic may be free from ice soon because of global warming and climate change.

B. The Arctic melting sea ice will affect the planet greatly.

C. The Arctic will be free from ice in two years.

D. Global warming are changing the earth’s landscape quickly.

高二英语阅读理解中等难度题查看答案及解析

If nothing is done to stop rising sea levels, the homes of 200 million people could be underwater by the year 2100. That's according to a study published in the scientific magazine Nature Communications. The global sea level has been rising for more than a century, and more quickly over the last several decades. That's because climate change is melting glaciers (冰川）and ice sheets. Higher sea levels flood coastlines. If steps aren't taken to protect cities and towns, people could be forced to move inland.

One European country is especially vulnerable to flooding: the Netherlands. More than a quarter of the country already sits below sea level. But the Netherlands has developed tactics (策略）for dealing with water. For that reason, many experts believe that even though it's vulnerable to rising seas, the country is well-equipped to deal with them.

In the region that is now the Netherlands, people have been inventing ways to keep out water for at least 900 years. The country is famous for its dikes (堤坝），which are long walls that prevent flooding. But in recent years, experts there have developed new techniques that go far beyond dikes, some of which are high-tech.For example, the Maeslantkering is a massive storm-surge barrier that protects the city of Rotterdam from seawater. It's controlled by a supercomputer. It closes automatically when Rotterdam is threatened by floods.

Other projects look to nature for inspiration.The DakAkker is a farm located on top of an office building in Rotterdam. The building's roof holds rainwater to prevent runoff. Another example is the Floating Farm. Its designers wanted to make room for agriculture in a waterflooded city. More than 30 dairy cows live on the farm, which floats in Rotterdam's waterways.The farm generates (生产）its own energy using floating solar panels.

“It's not that our solutions are the best,” says Henk Ovink, who works on water issues for the Dutch government. “But we provide ideas for your country's solutions.”

1.What does the underlined word“vulnerable”in paragraph 2 probably mean?

A.Heavily independent. B.Easy to be attacked.

C.Experienced in solving. D.Totally unconcerned.

2.What can we learn about“the Maeslantkering”?

A.It's a tactic to deal with glaciers. B.It's a high-tech life-saving ship.

C.It's a computer-controlled dike. D.It's a high building for escape.

3.Where is the Floating Farm?

A.On the river. B.Under the water.

C.On the long dikes. D.On top of a building.

4.What does Henk Ovink think of Dutch's tactics to fight floods?

A.An outline. B.An instruction. C.An assumption. D.An inspiration.

高二英语阅读选择中等难度题查看答案及解析

Many experts say that Billy Wilder changed the history of American movies. He is often called the best movie maker Hollywood has ever had, known for making movies that offered sharp social comment.

Between the 1930s and the 1980s, Billy Wilder made almost fifty movies. During that time he received more than twenty nominations from the Academy of Motion Picture Arts and Sciences. He won six of the Oscar awards. His movies have been seen by people around the world, like “Sunset Boulevard”, “Some Like It Hot”, “The Lost Weekend”, “The Apartment”, and “The Seven Year Itch”.

Samuel Wilder was born in 1906 in the former Austro-Hungarian Empire. His mother had enjoyed spending several years in the United States when she was young. So she called him Billy because she thought it sounded American. Billy Wilder started law school in Vienna, Austria. Then he decided not to become a lawyer. Instead, he began reporting for a Vienna newspaper. By the 1920s, he was writing movies in Germany.

However, the Nazis had risen to power in the nation. Wilder was Jewish, and he recognized that he had no future in Nazi Germany. In 1933, he went to Paris. There he directed a movie for the first time. It was called “The Bad Seed”. Then he received word that producers in the United States had accepted one of his scripts. Billy Wilder left Europe for America.

Billy Wilder had only eleven dollars when he arrived to settle in the United States in 1934. He decided to live in the center of American movie making, Hollywood, California. Then he formed a writing team with Charles Brackett. The two writers created many successful films together. Wilder always praised this man as a friend and teacher whose humor and expert direction greatly influenced his work.

In his love stories, Billy Wilder did not follow the Hollywood tradition of sweet boy-meets-girl situations. He had an unusual way of showing relations between men and women. Wilder died in March, 2002. A current Hollywood producer said: “Billy Wilder made movies that people will never forget.”

1.Billy Wilder is known for ________.

A. making almost fifty wonderful movies

B. making movies offering insightful comments

C. wining ten of the Oscar awards

D. changing the way people see movies

2.The underlined word “it” in the third paragraph refers to ________.

A. Samuel　　 B. Empire

C. Wilder　　 D. Billy

3.From the passage we learn that ________.

A. in 1933, he directed a movie called “The Apartment” for the first time

B. when he arrived in America in 1934, he became famous

C. Charles Brackett impressed and helped Billy Wilder a lot

D. Billy Wilder loved the Hollywood tradition of boy-meets-girl situations

4.The passage is about Billy Wilder’s ________.

A. achievement　　 B. education

C. life experience　　 D. theory

高二英语阅读理解中等难度题查看答案及解析