1 . Utah is the second most wasteful states in the US. Everyone always complains about how much construction there is all the time— on campus you can’t walk ten steps without running into another pit— but no one seems to be doing anything about it. Every year the city has a surplus of money and they spent it on unneeded road construction. Instead, this money should be spent on developing Utah’s solar energy capabilities (能力).
People may think that solar power technology isn’t advanced enough to sustain (维持) an entire state year-round. However, Utah is one of the six states in the country getting more than enough sunlight to run completely on solar power every year according to Solar Nation. For reference, one might look at places similar to the Hotel at Oberlin in Ohio, a hotel remodeled in the summer of 2016 to run completely on solar power. Anywhere west of Ohio has no excuse for not using solar energy.
Many think it would be bad for the economy to switch to solar power because electrical workers would lose their jobs. But this isn’t necessarily true. They could transfer to solar companies. Considering how many panels (电池板，面板) would need to be built and installed (安装) and maintained, there’s plenty of work for electrical workers. Solar panel installation may be expensive at first, but as it stands currently, solar panels are expected to pay for themselves within 11 years of installation, saving solar panel owners up to $700 in electric bills per house in the first year.
Moreover, we, the humans of planet Earth, would never run out of solar energy. The sun will exist long after humanity goes. And while solar panels may be expensive, they cost the Earth much less than using coal and natural gas.
It’s bad enough that Utah is the most wasteful when it comes to the use of water. And the city is killing its citizens with air pollution. But when we have the physical capability of making changes that will ultimately save the environment and deepen our pocketbooks (财力、钱袋子), and we don’t make those changes, we’re actually lazy rather than being cautious.
1. Which of the following statements would the author agree with?| A．Roads in Utah should be repaired. |
| B．Money should be better used in Utah. |
| C．Construction is very important to Utah. |
| D．Schools in Utah are really in poor condition. |
| A．To explain how solar power is used in Ohio. |
| B．To show it is possible to use solar power in summertime. |
| C．To show solar power can be relied on year-round in Utah. |
| D．To prove many hotels are taking advantage of solar power. |
| A．benefit the environment | B．prevent waste in Utah |
| C．improve work efficient | D．lead to many changes in Utah |
| A．To call on people to reduce energy waste. |
| B．To show us the importance of using solar energy. |
| C．To ask government to pay attention to air pollution. |
| D．To appeal to Utah officials to develop solar energy. |
| A．①②-③④-⑤ | B．①-②③-④⑤ |
| C．①-②③④-⑤ | D．①②③-④⑤ |
2 . On one day my grandma died, I went for a walk to clear my mind. The small purse I carried with me was a gift from her. The bag only weighted several pounds but it felt like I was dragging heavy luggage.
As I was walking, I spotted Mary who gave me an excited hug. She asked how I was. “How are you” is a question that can turn meaningless or meaningful, depending on how you answer it. I considered going the meaningless route. Then I remembered that she is a friend from church. We once celebrated an activity together. Maybe I could lean on her for some comfort. I explained that my grandma died and I was feeling in bad shape emotionally.
Mary expressed kind regards. Then she asked the question everyone asks when you tell them someone died, “Were you two close?” It’s the main standard that determines the appropriate size someone’s sadness can take. The answer to this question depends on how someone defines closeness. I tend to feel close to people I can have heart-to-heart with. I nodded to Mary and said, “Yeah, we were.”
She nodded back, playing her role in the cultural script (剧本)we all know. Mary gathered information about the funeral arrangements, and then we parted. Seeing her was a catalyst (催化剂) to my quickly getting in touch with my sorrow. I cried loudly on the street directly.
Later that night I texted my friend Roger to tell him what had happened. I expected a text back with sympathy. Instead, the phone rang. Soon he was asking me what my favorite song was. While I hesitated, he started singing the hymn, “It Is Well With My Soul.” He finished it and prayed for me over the phone. It really made me exhilarated. I felt that a heavy burden was removed. But I cried again because of the spiritual synchronization(同步). I didn’t share stories of my grandmother or try to explain my complicated emotions over the phone.
Then I realized that courtesy (客套话) is generally good practice, but it can’t compare to personalized, thoughtful communication. And that kind of pat statement really has no place if you want to make a real connection.
1. What can we learn from Paragraph 2?| A．The author used to offer Mary advice to Mary. |
| B．The author and Mary enjoyed social activities. |
| C．The author and Mary often shared their secrets. |
| D．The author hesitated to turn to Mary for comfort. |
| A．judge how sad the author was |
| B．determine what sadness it was |
| C．prove that they were close friends |
| D．see if the author needed comfort |
| A．Mary decided to attend the funeral |
| B．the author felt touched to see Mary |
| C．the author got no real comfort from Mary |
| D．Mary felt helpless about relieving the author’s pain |
| A．Cheered me up | B．Made me satisfied |
| C．Let me down | D．Kept me down |
| A．A friend in need is a friend indeed. |
| B．Spiritual communication is better than courtesy. |
| C．Crying is an effective way to ease people’s pain. |
| D．It’s hard to recover from the pain of losing a loved one. |
3 . You can relax if remembering everything is not your strong suit. Recent research makes the case that being forgetful can be a strength — in fact, selective memory can even be a sign of stronger intelligence.
Traditional research on memory has focused on the advantages of remembering everything. But looking through years of recent memory data, researchers Paul Frankland and Blake Richards of the University of Toronto found that forgetting can be just as important to our decision-making as what our minds choose to remember.
Making intelligent decisions does not mean you need to have all the information at hand, it just means you need to hold onto the most valuable information. And that means clearing up space in your memory palace for the most up-to-date information on clients(客户) and situations. Our brains do this by generating new neurons(神经元) in our hippo-campus(海马体), which have the power to overwrite existing memories that are influencing our decision-making.
When we forget the names of certain clients and details about old jobs, our brain is making a choice that these details do not matter. Although too much forgetfulness can be a cause for concern, the occasional lost detail can be a sign of a perfectly healthy memory system. The researchers found that our brains further decision-making by stopping us from focusing too much on minor past details.
If you’re an analyst who meets with a client weekly, your brain will recognize that this is a client whose name and story you need to remember. If this is someone you may never meet again, your brain will weigh that information accordingly.
We can get blamed for being absent-minded when we forget past events in perfect detail. These findings show us that our brains are working smarter when they aim to remember the right stories, not every story.
1. Researchers of the University of Toronto found that forgetting could __________.| A．help make intelligent decisions |
| B．do harm to the brain |
| C．indicate people’s low intelligence |
| D．make people focus on everything |
| A．Make an intelligent decision. |
| B．Influence our decision-making. |
| C．Provide room in your memory. |
| D．Remember clients and situations. |
| A．People needn’t worry about forgetfulness at all. |
| B．Our brain is smart enough to select useful details. |
| C．Forgetting details is a sign of an unhealthy memory. |
| D．Focusing on all details contributes to decision-making. |
| A．the memory | B．the relationship | C．the frequency | D．the detail |
| A．To show how to remember the right stories. |
| B．To introduce the necessity of forgetting. |
| C．To help people make smart decisions. |
| D．To explain how the brain actually works. |
4 . A major new facility to pull CO2 out of the atmosphere has started operating in Iceland, which is a boost to an emerging technology that experts say could eventually play an important role in reducing greenhouse gases.
The plant in southwest Iceland is the biggest of its kind, its builder says. It is able to capture 900 tons of CO2 every year but it needs heat and electricity to work. It is using energy produced from waste and is built on the roof of a waste incineration plant, and through the burning of rubbish, energy is generated.
Human-sized fans are built into a series of boxes. They take CO2 out of the air, catching it in spongelike filters (过滤器). The filters are blasted with heat, freeing the gas, which is then mixed with water and pumped deep into deep underground basalt caves, where over time it turns into dark-gray stone. Pumping CO2 into the ground is just one way to deal with it. The makers are also selling the gas to be used again. The CO2 can be captured just a few 100 miles away. It is pumped through an underground pipeline directly into a greenhouse. Vegetables and plants love CO2 and higher concentrations of the gas within the greenhouse improve the growth of plants.
By 2050, humanity will need to pull nearly a billion metric tons of CO2 from the atmosphere every year through direct air capture technology to achieve carbon neutral goals, according to International Energy Agency recommendations. The plant in Iceland will be able to capture 4000 metric tons annually — just a small amount of what will be necessary, but an engineer in Climeworks, the company that built it, says it can grow rapidly as efficiency improves and costs decrease.
“This is a market that does not yet exist, but a market that urgently needs to be built,” said Christoph Gebald who co-founded Climeworks. “This plant that we have here is really the blueprint to further increase the size and really industrialize.”
1. What do we know about the carbon capture facility from paragraph 2?| A．It is built at high altitudes. | B．It uses waste to produce power. |
| C．It makes Iceland free of air pollution. | D．lt produces lots of heat during operation. |
| A．The methods of breaking down CO2. |
| B．The approaches to reusing waste gas. |
| C．The necessity of building greenhouses. |
| D．The workings of the carbon-catching plant. |
| A．It will decrease the cost of energy production. |
| B．It can help reach the carbon neutral goals in advance. |
| C．It will speed up the reduction of CO2 levels in the air. |
| D．It may replace the traditional carbon storage system. |
| A．The capture of CO2 in the atmosphere is able to kill many birds with one stone. |
| B．CO2 will be delivered to greenhouses after being turned into dark-gray stones. |
| C．A major new market to pull CO2 out of the atmosphere has started operating. |
| D．The plants in Iceland greenhouses can capture a small amount of CO2. |
| A．Ambiguous. | B．Neutral. |
| C．Disapproving. | D．Supportive. |
5 . If you’re worried about the planet, please make sure your rubbish is buried under the ground.
People talk about “reduce, reuse, recycle.” It sounds like a good idea. There is a problem, though. Recycling costs too much money.
Even the U. S. Environmental Protection Agency(EPA) says it only makes sense economically and environmentally to recycle about 35 percent of thrown materials, Among those materials are paper and aluminum cans (铝罐), Recycling 1 ton of paper or aluminum cans, the agency says, can save about 3 tons of CO2 emissions (排放) overproducing those materials again. Paper producers pay for the trees they process If it was cost-effective to recycle paper. producers would be beating down your door to bay it. But they aren’t. That means it’s more expensive to recycle old paper than to cut trees and then replant trees for processing.
Plastic can be recycled too. Because of the recent drop in crude oil (原油) prices. it is now cheaper to make a new plastic container (塑料容器) than to recycle an old one. Even if that were not true, the EPA says that recycling a ton of plastic saves only about a ton of CO2. However, it doesn’t take into consideration the water most people use to wash their plastic containers before having them recycled. The New York Times Journalist John
Tierney recently wrote. “If you wash plastic in water that was heated by electricity, them the effect of your recycling could be mere carbon in the air.
Glass is another recyclable material. To reduce greenhouse gas emissions by I ton, you have to recycle 3 tons of glass. If one includes the cost of collecting glass waste from neighborhoods, and the pollution produced by the collection trucks and the recycling process itself, glass recycling creates more greenhouse gas emissions and is more expensive than making new glass, which comes primarily from sand that exists everywhere.
If recycling were truly cost-effective, private companies would be lining up at your doorstep to buy your rubbish. Don’t look now because they’re not there.
1. What’s the EPA’S attitude to recycling aluminum cans?| A．It is helpful to the environment. | B．It is actually a waste of money. |
| C．It costs less than recycling paper. | D．It costs the same as producing new cans. |
| A．The crude oil. | B．The water pollution. |
| C．The process to clean it. | D．The electricity for lights. |
| A．It results in lots of waste in neighborhoods. |
| B．The material for new glass can be easily got. |
| C．It is slightly more expensive than recycling glass. |
| D．Making 3 tons of new glass produces I ton of carbon emissions. |
| A．Recycling will disappear soon. |
| B．Companies will line up at your doorstep. |
| C．Recycling is a way to deal with your rubbish. |
| D．Companies won’t bother to collect thrown materials. |
| A．Whose fault is it? | B．Where does waste go? |
| C．Is everything recyclable? | D．Is it really worth the effort? |
6 . When little kids line up for the school picture day, there’s the typical nervousness as they get ready to show off their wide-toothed smiles. Maybe they’re wearing their best clothes. But the children who sit in front of the camera as part of Project Picture Day are a special kind of subject. They’re kids who get to be the focus of attention for the very first time.
Jules Alonzo brainstormed with his professional photographer friend about how they could combine a love for photography and working with children in poor areas. They created a concept and had a trial run in the Dominican Republic, taking photos of kids at school. Since then, the organization has reached many students and schools in three countries and it’s not for profit, which has made the Project Picture Day team of six members admired by many people. The team spend time photographing the students and editing and printing their photos.
“It’s funny and slightly embarrassing to see a photo of themselves. They love to show their peers and everyone gets a good laugh,” Alonzo says. “There’s a sense of pride and the whole ‘look at me!’ starts to spread across the room as more students get their photos. Others run to their parents to show them. Honestly, the reactions are the best part of all of this.” Besides photos, each student gets a care package including a notebook and a pencil. The group used to bring in donated supplies, but they soon realized that purchasing the school supplies locally had a positive economic impact. The students appreciate the supplies, but they’re truly charmed by the photos.
The group hope those kids can see themselves in a new light. These photos are meant to serve as a reminder of their accomplishment. Education, something that’s considered a luxury (奢侈品) in most poor countries, is indeed something to feel proud of and that’s something that makes the parents proud, too. For a parent, the photo means their child can go to school. The photo has a huge impact.
1. What’s special about the subject of Project Picture Day?| A．They’re too nervous to show off themselves. |
| B．They dress themselves beautifully. |
| C．They hardly got photographed before. |
| D．They will probably attract public attention. |
| A．Their great care for kids’ mental health. |
| B．Their volunteering to photograph many kids. |
| C．Their outstanding skills in taking photos of kids. |
| D．Their contribution to improving poor areas’ education. |
| A．Curious and excited. | B．Embarrassed and confused. |
| C．Shocked but appreciative | D．Anxious and grateful. |
| A．Fewer people make any donations. |
| B．Students appreciate photos more than supplies. |
| C．They find donated supplies make little sense. |
| D．They want to contribute to the local economy. |
| A．The magic of having a photo for poor students |
| B．The development of Project Picture Day |
| C．The kids’ love for their photographs |
| D．The education in poor countries |
7 . Round and Round They Go
Space is becoming more crowded. On December 3, a Falcon 9 rocket made by Space X thundered into the sky. On board were 64 small satellites, more than any American company had launched before in one go. They have a variety of uses, from space-based- radar to the monitoring of radio-frequency- emissions.
These objects are part of the latest breed of low-Earth-orbit (LEO) satellites. This launch is just taste of what is planned. Space X and One Web, a communications firm, plan to launch satellites in their thousands, not hundreds. The pair are set to double the total number of satellites in orbit by 2027.
That promises to change things dramatically on Earth. LEO satellites can bring internet connectivity to places where it is still unavailable or unaffordable. This will also be a lasting source of new demand for the space economy. Morgan Stanley, a bank, projects that the space industry will grow from $350 billion in 2016 to more than $1. I trillion by 2040. New internet satellites will account for a half this increase.
For that to happen, however, three worries must be overcome. Debris(碎片)is the most familiar concern. As long ago as 1978, Donald Kessler, a scientist at NASA, proposed situation in which, when enough satellites were packed into low-Earth orbits, any collision could cause a chain reaction which would eventually destroy all space craft in its orbital plane(平面). The syndrome which bears Mr. Kessler's name weighs heavily on the minds of executives at the new satellite firms. Debris could cause entire tracts(广阔的一片) of space to be unusable for decades.
Solutions exist. One is to grab malfunction satellites and pull them down into Earth's atmosphere. Another is to monitor space more intensively for debris; a US Air Force program me called Space Fence is due to start in 2019. But technology is only part of the answer. Rules are needed to govern the safe disposal(清除) of old satellites from low-Earth orbit. The United States' Federal Communications Commission is revising its regulations with this in mind. Other countries should follow suit.
Cyber-security is a second, long-standing worry. Hackers could take control of a satellite and seal intellectual property, redirect data flows or cause a collision. The satellite industry has been slow to respond to such concerns. But as more of the world's population comes to rely on the infrastructure of space for access to the internet, the need for action intensifies.
The third issue follows from the first two. If a simple mistake or a cyber-attack can cause a chain reaction which wipes out hundreds of billions of dollars of investment, who is liable? Underwriters(保险商) are studying the plans of firms that wish to operate large numbers of satellites. But there is a long way to go before the risks are well understood, let alone priced.
As space becomes more commercialized mind-bending prospects open up: packages moved across the planet in minutes by rocket rather than by plane, equipment sent to other small planets, passengers launched into orbit and beyond. All that and more may come, one day. But such activities would raise the same questions as LEO satellites do. They must be answered before the space economy can truly develop.
1. What can we learn about LEO satellites from the passage?| A．They are supposed to limit the space economy. |
| B．They are expected to increase in large numbers. |
| C．They are designed to move beyond the Earth as far as possible. |
| D．They are mainly intended to bring internet connectivity to remote areas. |
| A．depending entirely on the modern technology |
| B．monitoring the movement of spaceships carefully |
| C．strengthening rules to remove old satellites safely |
| D．destroying all the satellites with problems instantly |
| A．Measure. | B．Increase. | C．Spread. | D．Repeat. |
| A．Lack of satellite regulations. |
| B．Loss of intellectual property. |
| C．Crisis of confidence in the field. |
| D．Slow response of satellite industry. |
| A．It should be further confirmed for its ownership. |
| B．It should be continued because of its advantages. |
| C．It should be done carefully to avoid potential risks. |
| D．It should be stopped in face of the space economy. |
8 . Kids spend a lot of time looking at screens, and some parents worry, but a new study argues against the fears parents may feel.
“The danger is that they’re hearing a message that social media, digital technology use is causing very serious and harmful problems like depression（抑郁症) and suicide-related(与自杀有关的) behaviors. And the idea is that if you shut off social media, which lots of kids use to connect with each other, their friends, find out information about health, you could be making a situation worse. Parents are really being sent a message that is not supported by anything scientifically.” Candice Odgers, professor of psychological science at the University of California, said.
Odgers and her colleagues looked at the screen-related behavior of 400 public-school students in North Carolina aged 10 to 14. This group was picked as a representative sample of race and socioeconomic status for the entire U.S. The researchers found that the kids spent between almost five hours to seven hours per day on their devices, with the older kids online the most. That’s a lot of hours, but:
“Overall, what we find is no connection between the amount of time that young people spend online using digital technologies and mental health symptoms like depression and anxiety. When we do find associations, they were actually quite surprising to us. We found that young people who sent more text messages actually reported better mental health.
Now, again, this was a small association, but it reflects what other people have found: that people who are very connected offline and who use technology in the positive ways to stay connected often, are more connected online as well and experiencing better mental health.”
So why the fears about screen time? Odgers argues that the methodologies for older studies may have led to false conclusions.
“One of the issues with the research that’s been done to date has been that youths are, you know, in school.... They have a survey put in front of them, and they’re asked to recall(想), over the past six months, ‘How often are you online?’and ‘Have you ever felt depressed?’And the correlation (相互关系) between those two things has been used to spread a lot of fear around this connection between social media use and things like depression—99.5 percent of the reasons that kids differ in their depression are due to something other than the time they spend online.”
1. According to Professor Odgers, we know that___________.| A．social media is causing serious problems |
| B．digital technology is the cause of depression |
| C．parents are holding wrong ideas about social media |
| D．parents have showed too much concern for their children |
| A．Kids all over America. |
| B．Kids and parents in North Carolina. |
| C．Kids with different family backgrounds. |
| D．A number of public elementary and middle school students. |
| A．The more screen time kids have, the less happy they are. |
| B．Kids who use social media more are not necessarily depressed. |
| C．Using digital technology has nothing to do with one’s health. |
| D．The relationship between digital technology and depression is unclear. |
| A．technology should be put to good use |
| B．kids who make more phone calls might be happier |
| C．we should pay more attention to mental health |
| D．we should enrich our lives by spending more time offline |
| A．Time and effort. | B．Aim and purpose. |
| C．Ideas and dreams. | D．Means and principles. |
| A．the sample is too small |
| B．the respondents are too young |
| C．not considering the time spent offline |
| D．deliberately(故意地) linking the Internet to mental issues |
9 . Scientists have not found any signs of life on Mars yet,but they say a robotic vehicle called “Curiosity” is helping them learn a lot about the planet’s history and climate.
Curiosity landed on Mars in August 2012 after travelling through space for more than eight months.It was sent to Mars by scientists from NASA in the United States.
Curiosity is about the size of a car and has six wheels.It also has a robotic arm,cameras,and instruments that allow it to examine things it finds on the surface.Then it sends the information back to the earth.
Curiosity’s main task is to find out if anything could live on Mars,either now or in the past.On Nov.2,NASA scientists held a press conference (新闻发布会) to discuss what Curiosity had found in its first two months on Mars.
Curiosity has found soil that is similar to the sand formed by volcanoes (火山) on the earth.Scientists say that studying the minerals in Martian soil will help them understand what conditions were like on the planet in the past.Curiosity also found smooth stones like the ones found on river beds and seashores on the earth,where their rough edges have been worn down by water.Mars is very cold and dry now,but scientists say the smooth stones tell them that a river used to run through the place where they were found.
Curiosity has been testing the atmosphere around Mars for a type of gas called methane (甲烷),but so far it has not found any.On the earth,most methane is produced by plants or animals.Methane on Mars might indicate that some type of tiny plants or animals lived there.
Curiosity is the fourth robotic vehicle to be sent to Mars.It will continue to explore the planet for about two years.
1. Which of the following descriptions about Curiosity is TRUE?| A．It landed on Mars in January 2012. |
| B．It is small in size and has four arms. |
| C．It took over eight months to arrive in Mars. |
| D．It was sent to Mars by scientists from Russia. |
| A．there’s no air on Mars | B．Mars is warm and wet now |
| C．the soil on Mars is rich | D．there used to be water on Mars |
| A．smooth stones | B．rivers |
| C．robotic vehicles | D．volcanoes |
| A．some tiny animals once lived on Mars |
| B．there are no plants or animals on Mars now |
| C．the atmosphere around Mars is full of methane |
| D．Curiosity is designed to test the atmosphere around the earth |
| A．Humans benefit a lot by going to Mars. |
| B．Scientists will stop the research on Mars soon. |
| C．It is possible to build an earth-like environment on Mars. |
| D．A robotic vehicle helps scientists get useful information from Mars. |
10 . Not all vegetables need lots of sunshine. Mark Hoffman and his wife own a bed-and -breakfast guesthouse in rural Kempton, Illinois. They often serve their guests fresh products from the garden.
The Hoffmans have been growing food and flowers for twenty-five years. For almost ten of those years, Mr. Hoffman has been experimenting and working with shade (阴凉) plantings. He says, “The bottom line here is that most plants will produce more in full sun. But if you do not have full sun, there are other choices.”
For example, he grows tomatoes near oak trees. Oak trees can produce a lot of shade. But Mr. Hoffman says his tomato plants grow as long as they get five hours a day of direct sunshine, especially morning sun. Not only does this go against the traditional advice that tomatoes need six，eight，even twelve hours a day of full sun, it also shows how plants and trees roots can share nutrients and water．Mr. Hoffman also planted asparagus（芦笋）around a tree at its drip line，the area below the outer limit of the branches. So when it rains，all the rain drips down right on the asparagus．Mr. Hoffman says plants with wider leaves seem to do better in shady environments. He also found that his potatoes did better partly in shade than in full sun.
Moving them out of the sun helped control an insect problem. Mr. Hoffman does not use pesticide (农药). Instead, he planted the potatoes in the shade, especially on the east side of the tree. The potatoes get morning sun, but they are shaded during the hottest part of the day. Some insects dislike shade, and the hottest part day is when they do the worst of their damage.
Time of day, sun intensity (强度), shadows from trees, walls and buildings all influence how much sunlight falls on plants. And people interested in shade planting should also remember something else. The term “shade” can describe different amounts of darkness. It can even mean different things in different parts of the world.
1. What’s the author’s purpose of writing the passage?| A．To present a kind of eco-friendly lifestyle. |
| B．To recommend an approach to manage a website |
| C．To show vegetables can be planted in the shade. |
| D．To introduce Mark Hoffman and his family. |
| A．five hours a day | B．Six hours a day |
| C．Eight hours a day | D．Twelve hours a day |
| A．Food and flowers produce more in the shade. |
| B．Food growing in the shade contains more nutrients. |
| C．Sun can affect the production of some plants. |
| D．Food growing in the shade is the best choice for most plants. |
| A．asparagus prefer to grow in the shade. |
| B．how plants and tree roots share water. |
| C．vegetables grow better in partial shade. |
| D．how leaves gain sunshine under the tree. |
| A．environment | B．traveling |
| C．lifestyle | D．agriculture |
