1 . According to the Solar Energy Industry Association, the number of solar panels installed(安装)has grown rapidly in the past decade, and it has to grow even faster to meet climate goals. But all of that growth will take up a lot of space, and though more and more people accept the concept of solar energy, few like large solar panels to be installed near them.
Solar developers want to put up panels as quickly and cheaply as possible, so they haven’t given much thought to what they put under them. Often, they’ll end up filling the area with small stones and using chemicals to control weeds. The result is that many communities, especially in farming regions, see solar farms as destroyers of the soil.
“Solar projects need to be good neighbors,” says Jordan Macknick, the head of the Innovative Site Preparation and Impact Reductions on the Environment(InSPIRE)project. “They need to be protectors of the land and contribute to the agricultural economy.” InSPIRE is investigating practical approaches to “low-impact” solar development, which focuses on establishing and operating solar farms in a way that is kinder to the land. One of the easiest low-impact solar strategies is providing habitat for pollinators(传粉昆虫).
Habitat loss, pesticide use, and climate change have caused dramatic declines in pollinator populations over the past couple of decades, which has damaged the U.S. agricultural economy. Over 28 states have passed laws related to pollinator habitat protection and pesticide use. Conservation organizations put out pollinator-friendliness guidelines for home gardens, businesses, schools, cities—and now there are guidelines for solar farms.
Over the past few years, many solar farm developers have transformed the space under their solar panels into a shelter for various kinds of pollinators, resulting in soil improvement and carbon reduction. “These pollinator-friendly solar farms can have a valuable impact on everything that’s going on in the landscape,” says Macknick.
1. What do solar developers often ignore?| A．The decline in the demand for solar energy. |
| B．The negative impact of installing solar panels. |
| C．The rising labor cost of building solar farms. |
| D．The most recent advances in solar technology. |
| A．Improve the productivity of local farms. |
| B．Invent new methods for controlling weeds. |
| C．Make solar projects environmentally friendly. |
| D．Promote the use of solar energy in rural areas. |
| A．To conserve pollinators. | B．To restrict solar development. |
| C．To diversify the economy. | D．To ensure the supply of energy. |
| A．Pollinators: To Leave or to Stay | B．Solar Energy: Hope for the Future |
| C．InSPIRE: A Leader in Agriculture | D．Solar Farms: A New Development |
2 . Grizzly bears, which may grow to about 2.5 m long and weigh over 400 kg, occupy a conflicted corner of the American psyche — we revere (敬畏) them even as they give us frightening dreams. Ask the tourists from around the world that flood into Yellowstone National Park what they most hope to see, and their answer is often the same: a grizzly bear.
“Grizzly bears are re-occupying large areas of their former range,” says bear biologist Chris Servheen. As grizzly bears expand their range into places where they haven’t been seen in a century or more, they’re increasingly being sighted by humans.
The western half of the US was full of grizzlies when Europeans came, with a rough number of 50,000 or more living alongside Native Americans. By the early 1970s, after centuries of cruel and continuous hunting by settlers, 600 to 800 grizzlies remained on a mere 2 percent of their former range in the Northern Rockies. In 1975, grizzlies were listed under the Endangered Species Act.
Today, there are about 2,000 or more grizzly bears in the US. Their recovery has been so successful that the US Fish and Wildlife Service has twice attempted to delist grizzlies, which would loosen legal protections and allow them to be hunted. Both efforts were overturned due to lawsuits from conservation groups. For now, grizzlies remain listed.
Obviously, if precautions (预防) aren’t taken, grizzlies can become troublesome, sometimes killing farm animals or walking through yards in search of food. If people remove food and attractants from their yards and campsites, grizzlies will typically pass by without trouble. Putting electric fencing around chicken houses and other farm animal quarters is also highly effective at getting grizzlies away. “Our hope is to have a clean, attractant-free place where bears can pass through without learning bad habits,” says James Jonkel, longtime biologist who manages bears in and around Missoula.
1. How do Americans look at grizzlies?| A．They cause mixed feelings in people. |
| B．They should be kept in national parks. |
| C．They are of high scientific value. |
| D．They are a symbol of American culture. |
| A．The European settlers’ behavior. |
| B．The expansion of bears’ range. |
| C．The protection by law since 1975. |
| D．The support of Native Americans. |
| A．The opposition of conservation groups. |
| B．The successful comeback of grizzlies. |
| C．The voice of the biologists. |
| D．The local farmers’ advocates. |
| A．Food should be provided for grizzlies. |
| B．People can live in harmony with grizzlies. |
| C．A special path should be built for grizzlies. |
| D．Technology can be introduced to protect grizzlies. |
A visually-challenged man from Beijing recently hiked (徒步) 40 days to Xi’an, as a first step
On the 1,100 kilometer journey, the man Cao Shengkang,
Cao and Wu also collected garbage along the road, in order to promote environmental
In the last five years. Cao
Now, Cao has started the second part of his dream to walk along the Belt and Road route. He flew 4, 700 kilometers
4 . You can tell a lot about a man by how he treats his dogs.
For many years, I enjoyed living with my dogs, Tilly and Chance. Their
The next week we
We
A year later, much to my
| A．ownership | B．membership | C．companionship | D．leadership |
| A．reservations | B．expectations | C．confidence | D．prejudice |
| A．feared | B．doubted | C．hoped | D．learned |
| A．unsatisfied | B．amused | C．terrified | D．thrilled |
| A．predicted | B．worried | C．regretted | D．insisted |
| A．Flora | B．Chance | C．Molly | D．Tilly |
| A．tied | B．walked | C．bathed | D．fed |
| A．breath | B．balance | C．attention | D．imagination |
| A．calm | B．sure | C．soon | D．real |
| A．By the way | B．In that case | C．By all means | D．In that moment |
| A．continued | B．decided | C．intended | D．pretended |
| A．eye | B．tail | C．ear | D．leg |
| A．secretly | B．constantly | C．eventually | D．unwillingly |
| A．left | B．sold | C．suggested | D．searched |
| A．late | B．hard | C．fine | D．free |
| A．emptied | B．respected | C．occupied | D．discovered |
| A．looking | B．caring | C．waiting | D．calling |
| A．delight | B．credit | C．interest | D．disadvantage |
| A．beg | B．trust | C．need | D．aid |
| A．toys | B．awards | C．food | D．water |
I've always loved the ocean. In the
I decided to do something
One day, I saw a commercial for a health-care company. People in the ad were using plastic straws （吸管）. I found the contact information of the company
I kept going. Whenever I heard of businesses using plastic, I'd send an email. One of the biggest companies I wrote to
Diets have changed in China — and so too has its top crop. Since 2011, the country
A taste for meat is
According to the World Bank, China accounts for about 30 percent of total
7 . Parrots are prey animals, which means that other predators (捕食者) in the wild, such as hawks or snakes, are looking to make them into a meal. This one factor influences parrots’ behavior in your house more than any other.
Parrots are most easily hurt when feeding on the ground. Membership in a group plays an important function in ensuring their safety and improving their chances of survival from attacks by predators. The most common predators of parrots include hawks, snakes, cats, monkeys, and bats. Some predators make attacks only during the day while others hunt in the night.
As prey animals, parrots are constantly watching out for danger and they instinctively (本能地) react to risks. Their first choice is to take flight. However, if this is not possible, they will fight with their powerful beaks to defend themselves.
Because their biggest enemy is the hawk, parrots are especially reactive to quick movements from above and behind. For this reason, it is wise to avoid quick, sudden movements near your bird. This is a built-in reaction not subject to logic or reason. Simple and relatively harmless household objects can draw extreme fear responses from a bird. For example, a balloon may represent a hawk or a vacuum hose (吸尘器软管) may be the same as a snake in your bird’s mind.
As prey animals, parrots are often frightened by exposure to new household items or strangers. It is important to expose your bird to safe experiences and changes starting at a very young age to build flexibility and improve their adaptability. Variety in diet and toys, travel, and exposure to new people and places all help to make your bird more flexible and adaptable to change.
1. What is important for parrots to better survive from attacks in the wild?| A．Living in a group. | B．Growing beautiful feathers. |
| C．Feeding on the ground. | D．Avoiding coming out at night. |
| A．To attack back. | B．To get away. |
| C．To protect the young. | D．To play dead. |
| A．It may explode suddenly. | B．It may be in a strange shape. |
| C．It may have a strong color. | D．It may move around quickly. |
| A．To explain wild parrots’ behavior. | B．To give advice on raising a parrot. |
| C．To call for action to protect animals. | D．To introduce a study on bird ecology. |
8 . When “Rise of the Planet of the Apes” was first shown to the public last month, a group of excited animal activists gathered on Hollywood Boulevard. But they weren’t there to throw red paint on fur-coat-wearing film stars. Instead, one activist, dressed in a full-body monkey suit, had arrived with a sign praising the filmmakers: “Thanks for not using real apes (猿)!”
The creative team behind “Apes” used motion-capture (动作捕捉) technology to create digitalized animals, spending tens of millions of dollars on technology that records an actor’s performance and later processes it with computer graphics to create a final image (图像). In this case, one of a realistic-looking ape.
Yet “Apes” is more exception than the rule. In fact, Hollywood has been hot on live animals lately. One nonprofit organization, which monitors the treatment of animals in filmed entertainment, is keeping tabs on more than 2,000 productions this year. Already, a number of films, including “Water for Elephants,” “The Hangover Part Ⅱ” and “Zookeeper,” have drawn the anger of activists who say the creatures acting in them haven’t been treated properly.
In some cases, it’s not so much the treatment of the animals on set in the studio that has activists worried; it’s the off-set training and living conditions that are raising concerns. And there are questions about the films made outside the States, which sometimes are not monitored as closely as productions filmed in the States.
1. Why did the animal activists gather on Hollywood Boulevard?| A．To see famous film stars. |
| B．To oppose wearing fur coats. |
| C．To raise money for animal protection. |
| D．To express thanks to some filmmakers. |
| A．The cost of making “Apes.” |
| B．The creation of digitalized apes. |
| C．The publicity about “Apes.” |
| D．The performance of real apes. |
| A．Listing completely. |
| B．Directing professionally. |
| C．Promoting successfully. |
| D．Watching carefully. |
| A．They may be badly treated. |
| B．They should take further training. |
| C．They could be traded illegally |
| D．They would lose popularity. |
9 . Monkeys seem to have a way with numbers.
A team of researchers trained three Rhesus monkeys to associate 26 clearly different symbols consisting of numbers and selective letters with 0-25 drops of water or juice as a reward. The researchers then tested how the monkeys combined—or added—the symbols to get the reward.
Here’s how Harvard Medical School scientist Margaret Livingstone, who led the team, described the experiment: In their cages the monkeys were provided with touch screens. On one part of the screen, a symbol would appear, and on the other side two symbols inside a circle were shown. For example, the number 7 would flash on one side of the screen and the other end would have 9 and 8. If the monkeys touched the left side of the screen they would be rewarded with seven drops of water or juice; if they went for the circle, they would be rewarded with the sum of the numbers—17 in this example.
After running hundreds of tests, the researchers noted that the monkeys would go for the higher values more than half the time, indicating that they were performing a calculation, not just memorizing the value of each combination.
When the team examined the results of the experiment more closely, they noticed that the monkeys tended to underestimate(低估) a sum compared with a single symbol when the two were close in value—sometimes choosing, for example, a 13 over the sum of 8 and 6. The underestimation was systematic: When adding two numbers, the monkeys always paid attention to the larger of the two, and then added only a fraction(小部分) of the smaller number to it.
“This indicates that there is a certain way quantity is represented in their brains, ”Dr. Livingstone says. “But in this experiment what they’re doing is paying more attention to the big number than the little one.”
1. What did the researchers do to the monkeys before testing them?| A．They fed them. | B．They named them. |
| C．They trained them. | D．They measured them. |
| A．By drawing a circle. | B．By touching a screen. |
| C．By watching videos. | D．By mixing two drinks. |
| A．They could perform basic addition. | B．They could understand simple words. |
| C．They could memorize numbers easily. | D．They could hold their attention for long. |
| A．Entertainment. | B．Health. | C．Education. | D．Science. |
10 . Let's take a minute to think about the water we use. The human body is 60% water and we need to drink lots of water to be healthy. When we are thirsty we just go to the kitchen and fill a glass with clean water.
The truth is that we are lucky enough to have clean water whenever we want，but this is not the case for many people around the world.
| A．We use water indirectly too. |
| B．Every system in our body depends on water to function. |
| C．It is to inspire people to learn more about water-related problems |
| D．If children walk many hours a day to get water，they can't go to school. |
| E．Did you know that around 750 million people do not have clean water to drink？ |
| F．In 1993 the United Nations decided that March 22nd is the World Day for Water. |
| G．In this way，they know how it feels to walk a long distance carrying heavy bottles. |
