1 . I have worked as a keeper at the National Zoo, Paris for 11 years. Spot and Stripe are the first tiger cubs that have ever been born here. Globally, a third of Sumatran cubs in zoos don't make it to adulthood, so I decided to give them round-the-clock care at home.
I've got two children—the younger one, Kynan, was extremely happy about the tigers arriving - but all of us really looked forward to being part of their lives and watching them grow. I wasn't worried about bringing them into my home with my wife and kids. These were cubs. They weighed about 2.5 kg and were so small that there was absolutely no risk.
As they grew more mobile, we let them move freely around the house during the day, but when we were asleep we had to contain them in a large room, otherwise they'd get up to mischief. We'd come down in the morning to find they'd turned the room upside down, and left it looking like a zoo.
Things quickly got very intense due to the huge amount of energy required to look after them. There were some tough times and I just felt extremely tired. I was grateful that my family was there to help. We had to have a bit of a production line going, making up “tiger milk”, washing baby bottles, and cleaning the floors.
When Spot and Stripe were four months old, they were learning how to open doors and jump fences, and we knew it really was time for them to go. It was hard for us to finally part with them. For the first few days, Kynan was always a bit disappointed that the cubs weren't there.
I'm not sad about it. I'm hands-on with them every day at the zoo, and I do look back very fondly on the time that we had them.
1. Why did the author bring the tiger cubs home?| A．To ensure their survival. | B．To observe their differences. |
| C．To teach them life skills. | D．To let them play with his kids. |
| A．Behave badly. | B．Lose their way. | C．Sleep soundly. | D．Miss their mom. |
| A．Boring. | B．Tiring. | C．Costly. | D．Risky. |
| A．They frightened the children. | B．They became difficult to contain. |
| C．They annoyed the neighbours. | D．They started fighting each other. |
The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°, there is evidence
Modern methods
Maria and Peter lived in a coastal city. The greatest pleasure in summer for them was to swim at their local beach after school. But one day they started to lose their enthusiasm for swimming in the waters. More often than not, they would find plastic bags thrown on the beach. Worse sill, as they swam in the water, some plastic bags would float around them and even stick to their legs when they walked to the shore.
They were upset and decided something needed to be done to stop the beautiful sea becoming consumed by waste.One weekend,Maria and Peter brought a big bag to the beach and determined to clean it up. Sweat streamed down from their forehead while they bent down and picked up the plastic bags. To their disappointment, after a day’s hard work, there were still many plastic bags lying on the beach or floating in the water. Going home with aching legs and arms, Maria and Peter were almost defeated by a strong sense of failure.
That night over dinner with their parents, the pair ate silently. Noticing their low spirits, Mother asked gently, “You two looked so down. What happened?”Exchanging glances with Peter, Maria replied in a low voice,“It’s those annoying plastic bags. We tried to clean up but it was just impossible.”Understanding the pair’s disappointment, their father patted them on the back and comforted,”Well, it’s really hard for just two of you to fix such a big problem.”“Just two of us.”complained Maria and Peter, looking at each other.Suddenly, an idea lashed through their minds, their eyes shining with excitement.“Yes,that’s the point! We should make more people aware of the problem and encourage them to take action!” the pair said in chorus.
注意：1.续写词数应为150左右;
2. 请按如下格式在答题卡的相应位置作答。
Quickly finishing their dinner, the pair went upstairs and started planning.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Excited and nervous, they posted the video and article on WeChat.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4 . Wild animals are equipped with a variety of techniques to avoid becoming lunch for a bigger animal, also known as a predator (捕食者) in nature. The most well-known methods include the classic fight and flight as well as freeze.
A team of researchers wondered whether closeness to people might impact those survival strategies. “We often see that animals are more tolerant around us in urban areas, but we don’t really know why.” says evolutionary biologist Dan Blumstein. “Is it individual plasticity, meaning individuals change their fear of us and that leads to tolerance? Or can there be an evolutionary factor involved?”
To find out, Blumstein and his colleagues combined information from 173 studies of over 100 species, including mammals, birds, fish and even mollusks. It turns out that regardless of evolutionary ancestry, the animals react in a similar way to life among humans: they lose their anti-predator characteristics. That pattern is especially pronounced for plant-eating animals and for social species. This behavioral change is perhaps unsurprising when it’s intentional, the result of domestication or controlled breeding. But it turns out that urbanization alone results in a similar change, though around three times more slowly.
The main point is: we’re essentially domesticating animals by urbanization. We’re selecting for the same sorts of characteristics that we would if we were actually trying to domesticate them. If the urbanization process helps animals better co-exist with people, it could be to their benefit. But if it makes them more defenseless to their nonhuman predators, it could be a real problem. Either way, these results mean that city living has enough of an influence on wild animals that evolutionary processes kick in. Those reductions in anti-predator characteristics become encoded in their genes. We’re changing the population genetics one way or another.
What the researchers now wonder is whether the mere presence of tourists in less urbanized areas can cause similar changes in wild animals. If so, serious questions exist for the idea of ethical, welfare-oriented eco-tourism. If we wish to help animals keep their anti-predator defenses, the researchers say, we might have to intentionally expose animals to predators. It’s just yet one other way that we’re changing the world around us.
1. The research led by Blumstein is aimed at ________.| A．determining how animals’ survival is impacted by individual plasticity |
| B．studying how living among humans affects animals’ survival strategies |
| C．comparing the effectiveness of different survival techniques |
| D．finding out which evolutionary factor impacts animals’ survival methods |
| A．Controlled breeding of animals. | B．Banning the operation of eco-tourism. |
| C．Planned selection of favorable genes. | D．Eliminating domestication. |
| A．Urbanization has made wild animals more alert. |
| B．Urbanization has brought concrete benefits to animals. |
| C．City living has led to animals’ genetic variations. |
| D．City living has helped to preserve animal species. |
| A．expose the fox to the urban environment repeatedly |
| B．train the fox to co-exist with the less aggressive predators |
| C．intentionally get the fox accustomed to the presence of humans |
| D．purposefully adapt the fox to predator related environment |
5 . I work with Volunteers for Wildlife, a rescue and education organization at Bailey Arboretum in Locust Valley. Trying to help injured, displaced or sick creatures can be heartbreaking; survival is never certain. However, when it works, it is simply beautiful.
I got a rescue call from a woman in Muttontown. She had found a young owl(猫头鹰) on the ground. When I arrived, I saw a 2-to 3-week-old owl. It had already been placed in a carrier for safety.
I examined the chick(雏鸟) and it seemed fine. If I could locate the nest, I might have been able to put it back, but no luck. My next work was to construct a nest and anchor it in a tree.
The homeowner was very helpful. A wire basket was found. I put some pine branches into the basket to make this nest safe and comfortable. I placed the chick in the nest, and it quickly calmed down.
Now all that was needed were the parents, but they were absent. I gave the homeowner a recording of the hunger screams of owl chicks. These advertise the presence of chicks to adults; they might also encourage our chick to start calling as well. I gave the owner as much information as possible and headed home to see what news the night might bring.
A nervous night to be sure, but sometimes the spirits of nature smile on us all! The homeowner called to say that the parents had responded to the recordings. I drove over and saw the chick in the nest looking healthy and active. And it was accompanied in the nest by the greatest sight of all — LUNCH! The parents had done their duty and would probably continue to do so.
1. What is unavoidable in the author’s rescue work according to paragraph 1?| A．Efforts made in vain. |
| B．Getting injured in his work. |
| C．Feeling uncertain about his future. |
| D．Creatures forced out of their homes. |
| A．To rescue a woman. |
| B．To take care of a woman. |
| C．To look at a baby owl. |
| D．To cure a young owl. |
| A．A new nest. |
| B．Some food. |
| C．A recording. |
| D．Its parents. |
| A．It’s unexpected. |
| B．It’s beautiful. |
| C．It’s humorous. |
| D．It’s discouraging. |
6 . The number of fish caught just outside a recently expanded marine (海洋) protected area in Hawaii has risen. It is a sign that quadrupling (四倍) the size of the reserve in 2016 may have shored fish populations in the region.
When the Marine National Monument around Hawaii was enlarged to 1,510,000 square kilometers, marine conservationists around the world rejoiced.
Fishers may have felt differently, however, as fishing inside the area is not allowed. Yet by creating a space for dwindling tuna populations to recover, supporters argued, the reserve would benefit fisheries as well.
As populations inside the reserve boundaries steadily increased, they predicted, the fish would spill (溢出) over into the surrounding areas, increasing the amount of tuna available to catch.
Proving that is tricky, however, as tuna can’t be counted directly. Their numbers may rise or fall for a variety of reasons other than the expansion of a reserve. But the new study, published in Science this week, strongly suggests the number of fish caught just outside the MPA is higher now than it used to be.
Alan Friedlander, chief scientist for the National Geographic Society’s Pristine Seas project, calls the study a “very careful and strict test of spillover from marine protected areas.”
Importantly, says John Lynham, an environmental economist at the University of Hawaii and one of the study’s authors, the increase in tuna catches near the reserve held up even when looking at the average numbers caught by particular fishers. This shows the effect is not due to more effective crews now fishing local waters, he explains. To account for effort, catch numbers were divided by the ever-increasing number of fishing hooks in the area.
Lynham and colleagues found the catch per hook increased over the 10 years of the study. Fishers were catching on average six more yellowfin and five more bigeye tuna per year after the expansion than before.
“That last one, especially, was a surprise,” says Lynham, “because it is economically much more important, and there were fewer indications of an increase.”
1. What is the first paragraph mainly about?| A．The rising number of fish caught is a sign of a well-reserved area. |
| B．Enlarge the size of reserve may contribute to the increasing of fish population. |
| C．The number of fish caught has risen to quadrupling (四倍) the size of that in 2016. |
| D．Fish catching outside the reserve does good to the expanded marine protected area. |
| A．They felt joyful. | B．They felt different. | C．They felt unpleasant. | D．They felt excited. |
| A．By figuring the average catch per hook in the area. |
| B．By summing up the catch of mare effective crews. |
| C．By looking at the numbers caught by particular fishers. |
| D．By detecting the number of tuna population in the surrounding area. |
| A．Tuna population embraces a boost | B．Marine Protected Areas Help Fisheries |
| C．Local fisheries hold a promising future | D．Tuna population can be counted scientifically |
Sam was a junior high school student. He lived in a community in Charlotte and usually had little exposure to country life. So much of what he knew about plants came from text-books. Sam was a kind-hearted person. He longed for a chance to explore nature and he wanted to do his part to beautify the world.
Finally, the opportunity came. On Arbor Day (植树节), his class organized a trip to a local village to plant trees. Sam was excited about it and couldn’t wait to tell his mom the good news. So the next day, Sam and his mom went to buy some tools for planting trees, including a shovel(铲), a bucket, gloves and so on.
On the day of the event, Sam and his classmates arrived early at the starting point. It was a beautiful day and everyone looked particularly happy. With the tools in hand, Sam got into the bus with everyone else and headed off to their destination.
As soon as they reached the village, all the students were divided into three teams by their teacher. One team was responsible for planting the trees, one team for shovelling the soil and one team for watering the trees. At the teacher’s command, everyone started to do their job.
However, it was the first time that many of the students had taken part in planting trees, so they had no idea about how to start. Of course, Sam was one of them. Fortunately, their teacher was a middle-aged man from the countryside who had some knowledge of planting trees. In order to set an example to the students, the teacher started to plant trees himself. After watching the teacher plant the trees, everyone also became busy. Before long, they planted hundreds of trees. Sam watched very carefully, not wanting to miss any of the details. Finally, Sam learned how to plant trees by himself and felt happy.
注意：1.续写词数应为150左右;
2.请按如下格式在答题卡的相应位置作答。
A few days later, a storm damaged some young trees in the community.
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________The neighbours praised Sam for what he had done.
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Hangzhou will build a world-class ecological and cultural tourism corridor in connection with Anhui Province’s Huangshan City. Five towns in Hangzhou’s Chun’an County and five towns in Huangshan’s Shexian County
Over the years, Hangzhou and Huangshan
These improvements are attracting more tourists and creating
In
9 . Transport is undergoing a massive transformation so it can meet society’s demands for a low- carbon economy. Introducing electric vehicles (EV) and declining gasoline use are helping, but zero-carbon hydrogen can speed up both the transition (转变) and long-term decarbonization of transport.
In the US, transportation produces the largest share of all greenhouse gas emissions (排放) in the economy at 29%, according to the Environmental Protection Agency. More than 90% of transport fuel is petrol based, but if more vehicles used hydrogen, emissions of this kind would plummet.
However, hydrogen is not considered an ideal replacement for gasoline as an engine fuel for cars because it is harder to store safely. And while fuel cell electric vehicles (FCEVs) that turn hydrogen into electricity can compete with EV performance-and even out-compete them on range and refill time, extra energy is needed to produce the hydrogen needed for fuel. Also, finding investment for storage, pipelines and fuel stations is still a challenge for many nations.
Currently, governments worldwide are backing green hydrogen projects to reduce greenhouse gas emissions in heavy industries like freight (货运), steel, and energy storage. But hydrogen transport will need rapid production methods to create the fuel needed for the world’s road fleet.
Thankfully, research is advancing all the time. Nanoscale (纳米级的) thin films are applied to improving the chemical process to rapidly harvest hydrogen from the seawater. The same technology has been successfully used in solar power devices with higher efficiency-to-cost rates. Since hydrogen is the most abundant element in the universe and as seawater makes up about 96% of all water on Earth, there is a virtually limitless supply.
Even wastewater and solid waste can create green hydrogen. Researchers at Princeton University are using sunlight to separate hydrogen from industrial wastewater. Chemical plants that currently face high costs for cleaning wastewater could transform it into clean hydrogen supplies.
1. What does the underlined word “plummet” mean in Paragraph 2?| A．Stop. | B．Decrease. | C．Continue. | D．Disappear. |
| A．Ways of storing hydrogen safely. |
| B．Benefits of fuel cell electric vehicles. |
| C．Challenges of using hydrogen as car fuel. |
| D．Differences between gasoline and hydrogen. |
| A．The application of solar power devices. |
| B．The method of identifying water elements. |
| C．The invention. of the water transport system. |
| D．The use of the nanoscale thin-film technology. |
| A．Clean Energy Hydrogen Ready to Take Off |
| B．Traditional Fuels Bound to Reach a Dead End |
| C．How We Can Generate Energy from Hydrogen |
| D．What the Future of Transportation May Be Like |
For Greek photographer George Doupas, Beijing is home now. During the past decade, he has been photographing the city, capturing its beauty and sharing these photos online and in
“This truly represents Beijing-the old and the new, nicely mixing together,” Doupas said while showing his photograph of the Zhihua Temple,
With-rich historical heritage, Beijing
“My
