The Xi’an City Wall is the most complete city wall that has survived China’s long history. It
We accessed the wall through the South Gate. The wall is 12 meters high and from here you can see streams of people moving inside and outside the City Wall.
After
We
2 . The connection between people and plants has long been the subject of scientific research. Recent studies have found positive effects. A study conducted in Youngstown，Ohio，for example, discovered that greener areas of the city experienced less crime. In another，employees were shown to be 15% more productive when their workplaces were decorated with houseplants.
The engineers at the Massachusetts Institute of Technology(MIT)have taken it a step further changing the actual composition of plants in order to get them to perform diverse，even unusual functions. These include plants that have sensors printed onto their leaves to show when they’re short of water and a plant that can detect harmful chemicals in groundwater. ＂We’re thinking about how we can engineer plants to replace functions of the things that we use every day,＂explained Michael Strano, a professor of chemical engineering at MIT.
One of his latest projects has been to make plants glow(发光)in experiments using some common vegetables. Strano’s team found that they could create a faint light for three-and-a-half hours. The light，about one-thousandth of the amount needed to read by，is just a start. The technology, Strano said, could one day be used to light the rooms or even to turn trees into self-powered street lamps.
In the future，the team hopes to develop a version of the technology that can be sprayed onto plant leaves in a one-off treatment that would last the plant’s lifetime. The engineers are also trying to develop an on and off＂switch＂where the glow would fade when exposed to daylight.
Lighting accounts for about 7% of the total electricity consumed in the US. Since lighting is often far removed from the power source(电源)-such as the distance from a power plant to street lamps on a remote highway-a lot of energy is lost during transmission(传输).Glowing plants could reduce this distance and therefore help save energy.
1. What is the first paragraph mainly about?| A．A new study of different plants. |
| B．A big fall in crime rates. |
| C．Employees from various workplaces. |
| D．Benefits from green plants. |
| A．To detect plants’ lack of water |
| B．To change compositions of plants |
| C．To make the life of plants longer. |
| D．To test chemicals in plants. |
| A．They will speed up energy production. |
| B．They may transmit electricity to the home. |
| C．They might help reduce energy consumption. |
| D．They could take the place of power plants. |
| A．Can we grow more glowing plants? |
| B．How do we live with glowing plants? |
| C．Could glowing plants replace lamps? |
| D．How are glowing plants made pollution-free? |
3 . Molai grew up in a tiny village in India. The village lay near some wetlands which became his second
When he was 16, Molai began to notice something
Molai
| A．dream | B．job | C．home | D．choice |
| A．nature | B．youth | C．culture | D．knowledge |
| A．precious | B．interesting | C．disturbing | D．awkward |
| A．waste | B．tension | C．pain | D．damage |
| A．Besides | B．However | C．Therefore | D．Otherwise |
| A．agreed | B．realized | C．remembered | D．predicted |
| A．noise | B．heat | C．disease | D．dust |
| A．directions | B．partners | C．help | D．shelter |
| A．labor | B．police | C．forest | D．finance |
| A．rebuilt | B．discovered | C．left | D．managed |
| A．Decorating | B．Observing | C．Watering | D．Guarding |
| A．tough | B．illegal | C．fantastic | D．beneficial |
| A．back | B．top | C．foot | D．side |
| A．cool down | B．keep off | C．purify | D．collect |
| A．returned | B．learned | C．failed | D．continued |
4 . When you were trying to figure out what to buy for the environmentalist on your holiday list, fur probably didn’t cross your mind. But some ecologists and fashion (时装)enthusiasts are trying to bring back the market for fur made from nutria(海狸鼠).
Unusual fashion shows in New Orleans and Brooklyn have showcased nutria fur made into clothes in different styles. “It sounds crazy to talk about guilt-free fur-unless you understand that the nutria are destroying vast wetlands every year”, says Cree McCree, project director of Righteous Fur.
Scientists in Louisiana were so concerned that they decided to pay hunters $5 a tail. Some of the fur ends up in the fashion shows like the one in Brooklyn last month.
Nutria were brought there from Argentina by fur farmers and let go into the wild. “The ecosystem down there can’t handle this non-native species(物种).It’s destroying the environment. It’s them or us.” says Michael Massimi, an expert in this field.
The fur trade kept nutria in check for decades，but when the market for nutria collapsed in the late 1980s，the cat-sized animals multiplied like crazy.
Biologist Edmond Mouton runs the nutria control program for Louisiana. He says it’s not easy to convince people that nutria fur is green, but he has no doubt about it. Hunters bring in more than 300,000 nutria tails a year, so part of Mouton’s job these days is trying to promote fur.
Then there’s Righteous Fur and its unusual fashion. Model Paige Morgan says，”To give people a guilt-free option that they can wear without someone throwing paint on them-I think that’s going to be a massive thing, at least here in New York.” Designer Jennifer Anderson admits it took her a while to come around to the opinion that using nutria fur for her creations is morally acceptable. She is trying to come up with a label to attach to nutria fashions to show it is eco-friendly.
1. What is the purpose of the fashion shows in New Orleans and Brooklyn?| A．To promote guilt-free fur. |
| B．To expand the fashion market. |
| C．To introduce a new brand. |
| D．To celebrate a winter holiday. |
| A．Nutria damage the ecosystem seriously. |
| B．Nutria are an endangered species. |
| C．Nutria hurt local cat-sized animals. |
| D．Nutria are illegally hunted. |
| A．Boomed. | B．Became mature. | C．Remained stable. | D．Crashed. |
| A．It’s formal. | B．It’s risky. | C．It’s harmful. | D．It’s traditional. |
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
6 . Washington, D.C. Bicycle Tours
Cherry Blossom Bike Tour in Washington, D.C.
Duration: 3 hours
This small group bike tour is a fantastic way to see a world-famous cherry trees with beautiful flowers of Washington, D.C. Your guide will provide a history lesson about the trees and the famous monuments where they blossom. Reserve your spot before availability — the cherry blossoms—disappear!
Washington Capital Monuments Bicycle Tour
Duration: 3 hours (4 miles)
Join a guided bike tour and view some of the most popular monuments in Washington, D.C. Explore the monuments and memorials on the National Mall as your guide shares unique facts and history at each stop. Guided tour includes bike, helmet, cookies and bottled water.
Capital City Bike Tour In Washington, D.C.
Duration: 3 hours
Morning or Afternoon, this bike tour is the perfect tour for D. C. newcomers and locals looking to experience Washington, D.C. in a healthy way with minimum effort. Knowledgeable guides will entertain you with the most, interesting stories about Presidents, Congress, memorials, and parks. Comfortable bikes and a smooth tour route(路线) make cycling between the sites fun and relaxing.
Washington Capital Sites at Night Bicycle Tour
Duration: 3 hours (7miles)
Join a small group bike tour for an evening of exploration in the heart of Washington, D.C. Get up close to the monuments and memorials as you bike the sites of Capitol Hill and the National Mall. Frequent stops are made for photo taking as your guide offers unique facts and history. Tour includes bike, helmet, and bottled water. All riders are equipped with reflective vests and safety lights.
1. Which tour do you need to book in advance?| A．Cherry Blossom Bike Tour in Washington, D.C. |
| B．Washington Capital Monuments Bicycle Tour. |
| C．Capital City Bike Tour in Washington. |
| D．Washington Capital Sites at Night Bicycle Tour. |
| A．Meet famous people. | B．Go to a national park. |
| C．Visit well-known museums. | D．Enjoy interesting stories. |
| A．City maps. | B．Cameras. |
| C．Meals. | D．Safety lights. |
7 . We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices(装置) well after they go out of style. That’s bad news for the environment — and our wallets — as these outdated devices consume much more energy than the newer ones that do the same things.
To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life — from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s. Devices were grouped by generation — Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.
As we accumulated more devices, however, we didn't throw out our old ones. "The living-room television is replaced and gets planted in the kids' room, and suddenly one day, you have a TV in every room of the house," said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We're not just keeping these old devices — we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions（排放）more than doubling during the 1992 to 2007 window.
So what's the solution（解决方案）? The team's data only went up to 2007, but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.
1. What does the author think of new devices?| A．They are environment-friendly. | B．They are no better than the old. |
| C．They cost more to use at home. | D．They go out of style quickly. |
| A．To reduce the cost of minerals. |
| B．To test the life cycle of a product. |
| C．To update consumers on new technology. |
| D．To find out electricity consumption of the devices. |
| A．The box-set TV. | B．The tablet. |
| C．The LCD TV. | D．The desktop computer. |
| A．Stop using them. | B．Take them apart. |
| C．Upgrade them. | D．Recycle them. |
“I'm going to miss you so much, Poppy, "said the tall, thin teenager. He bent down to hug his old friend goodbye. He stood up, hugged his parents, and smiled, trying not to let his emotions(情绪)get the better of him.
His parents were not quite able to keep theirs under control. They had driven their son several hours out of town to the university where he would soon be living and studying. It was time to say goodbye for now at least. The family hugged and smiled through misty eyes and then laughed.
The boy lifted the last bag onto his shoulder, and flashed a bright smile.” I guess this is it, “he said.” I'll see you back home in a month, okay？"His parents nodded, and they watched as he walked out of sight into the crowds of hundreds of students and parents. The boy's mother turned to the dog, “Okay, Poppy, time to go back home.”
The house seemed quiet as a tomb without the boy living there. All that week, Poppy didn't seem interested in her dinner, her favorite toy, or even in her daily walk. Her owners were sad too, but they knew their son would be back to visit. Poppy didn't.
They offered the dog some of her favorite peanut butter treats. They even let her sit on the sofa, but the old girl just wasn't her usual cheerful self. Her owners started to get worried. "What should we do to cheer Poppy up？"asked Dad. “We've tried everything.”
“I have an idea, but it might be a little crazy, “smiled Mom.” Without anybody left in the house but us, this place could use a bit of fun. Let's get a little dog for Poppy."
It didn't take long before they walked through the front door carrying a big box. Poppy welcomed them home as usual, but when she saw the box, she stopped. She put her nose on it. Her tail began wagging(摆动)ever so slowly, then faster as she caught the smell.
注意:
1. 所续写短文的词数应为150左右；
2. 至少使用5个短文中标有下划线的关键词语；
3. 续写部分分为两段，每段的开头语已为你写好；
4. 续写完成后，请用下划线标出你所使用的关键词语。
Para 1. Dad opened the box and a sweet little dog appeared.
________________________________________________________________________________________________________________________________________________________________________________________________________________________
Para 2. A few weeks later, the boy arrived home from university.
________________________________________________________________________________________________________________________________________________________________________________________________________________________
9 . Color is fundamental in home design—something you’ll always have in every room. A grasp of how to manage color in your spaces is one of the first steps to creating rooms you’ll love to live in. Do you want a room that’s full of life? Professional? Or are you just looking for a place to relax after a long day?
Over the years, there have been a number of different techniques to help designers approach this important point.
Medium color choices are generally furniture pieces such as sofas, dinner tables or bookshelves.
The large color decisions in your rooms concern the walls, ceilings, and floors. Whether you’re looking at wallpaper or paint, the time, effort and relative expense put into it are significant.
| A．While all of them are useful |
| B．Whatever you’re looking for |
| C．If you’re experimenting with a color |
| D．Small color choices are the ones we’re most familiar with |
| E．It’s not really a good idea to use too many small color pieces |
| F．So it pays to be sure, because you want to get it right the first time |
| G．Color choices in this range are a step up from the small ones in two major ways |
10 . On a hot summer afternoon along the Mandavi River, Shweta Hule wraps her sari around her ankles and bends to pick wild “weeds” from the river and drop them into a bowl. The plants will be made into fritters (炸果饼), to be served at the little restaurant attached to the B&B Hule manages in the Indian coastal town of Vengurla.
Wild edible (可食用的) plants are common in kitchens here. Hule’s weed is juicy, which is found in mangrove forests. Harvesting some of the plant is helping conserve the mangroves, a globally endangered ecosystem of salt-tolerant trees that stop coastal erosion (侵蚀) and absorb storm damage.
Hule is head of Swamini, a self-help group set up by nine women from a fishing community in Vengurla who started Mandavi Eco Tourism in 2017. Vengurla is known for its beautiful beaches and seafood, but the climate crisis has made fishing for a living unsustainable, so people are trying to find other sources of income. They came up with the idea of running mangrove safaris (观光游) for tourists in Vengurla’s Mandavi River.
The safaris offer visitors a unique hour-long tour of the mangroves. Food has also become a key attraction: local spicy coconut curries, with homegrown or wild vegetables. Tourists are encouraged to go crabbing, and their catch is cooked and served.
Hule only discovered recently that the weed was edible when she met tourists from another coastal city. She researched these leaves and learned that the salty plant is rich in vitamins. She made her own version of the fritters, with chickpea flour, and presented it at the wild vegetable festival. “It was an instant hit. This boosted the confidence to include these fritters in our restaurant menu,” says Hule.
Swamini’s lodging house also serves vegetarian meals and plates of fish and crab sourced from the river. “The satisfaction after the visitors enjoy our meal is the real currency. We had guests from London who were so happy with our food that they took down the recipe. Such people help our business grow. What more can we want?” says Hule.
1. Which of the following can best describe the example of Shweta Hule?| A．Do as the Romans do. |
| B．Strike while the iron is hot. |
| C．Kill two birds with one stone. |
| D．Bite off more than you can chew. |
| A．Eco-tours and accommodation. |
| B．Fishing guide service. |
| C．Vegetable growing techniques. |
| D．Hands-on cooking classes. |
| A．They were less expensive. |
| B．They were traditional. |
| C．They had their own features. |
| D．They got strongly promoted. |
| A．Lost. | B．Proud. | C．Worried. | D．Curious. |
