1 . On Feb. 23, student group Grassroots hosted its monthly clothing exchange. It is a ________ activity on campus where students can ________ clothes in exchange for new ones.

“One of the ________ things about sustainability(可持续发展) is reuse,” Zein Tynon, Co-President and Clothing Exchange Chair, said in an interview with CT. “Instead of ________ old clothes or buying new clothes, you can donate them and give them a new ________. You might be done with that clothing item. ________, someone else might not be.” According to Tynon, about 100-150 items are ________ and 100-150 items are taken at the exchanges each month.

Tynon told CT that the clothing exchange has been ________ by Grassroots for many years. In response to how the clothing exchange has an effect on the campus’ ________ of sustainability, Tynon said there is a ________ influence. “It does make a big ________. Throughout the semester when students realize we have these exchanges, they bring clothes and ________ a lot more. So it does create a ________ where everyone can share their ________.”

Grassroots begins ________ their clothing exchange two weeks in advance via posters around campus.

Co-President of Grassroots Alan Rojas said the club not only ________ sustainability on campus, but off campus as well. Another Grassroots ________ is bringing speakers to campus to talk about sustainability and environmental protection.

“The clothing exchange is ________ our most known activity in our club, and I think it’s nice because there’re a lot of ________ who don’t know what to do with their clothes,” Rojas said. “I think it’s a really ________ way to get students more involved with sustainability.”

1.

A．free

B．commercial

C．meaningless

D．competitive

2.

A．sell

B．make

C．donate

D．wash

3.

A．strange

B．key

C．puzzling

D．crazy

4.

A．bringing back

B．taking out

C．putting on

D．throwing away

5.

A．style

B．record

C．purpose

D．thought

6.

A．Otherwise

B．However

C．Therefore

D．Besides

7.

A．brought

B．borrowed

C．purchased

D．priced

8.

A．allowed

B．ordered

C．monitored

D．run

9.

A．assessment

B．awareness

C．analysis

D．method

10.

A．negative

B．temporary

C．significant

D．complex

11.

A．difference

B．decision

C．mistake

D．profit

12.

A．earn

B．speak

C．waste

D．participate

13.

A．community

B．department

C．factory

D．company

14.

A．skills

B．stories

C．clothes

D．notes

15.

A．realizing

B．advertising

C．designing

D．evaluating

16.

A．look into

B．rely on

C．take over

D．appeal for

17.

A．requirement

B．activity

C．exhibition

D．standard

18.

A．undoubtedly

B．generally

C．occasionally

D．initially

19.

A．volunteers

B．scholars

C．students

D．neighbors

20.

A．similar

B．common

C．clumsy

D．easy

2 . Wang Fang, a Suzhou native, has given her heart and soul to Kunqu Opera. Wang, who has twice won the Plum Performance Award — China’s top award for theater and opera performances-started to learn the traditional art form in 1977.

Born with a melodic voice, Wang loved to sing and dance when she was little. She performed frequently, and was recruited by the Suzhou Kunqu Opera Troupe (剧团) when she was in middle school. However, her parents refused the troupe’s invitation, insisting that she should concentrate on her studies and not drop out of school. After members of the troupe visited the parents repeatedly and showed great sincerity,Wang’s parents finally agreed.

Learning the traditional art form was never easy. She started to learn how to pronounce words, sing them lyrically and make gestures gently. As an actress playing martial artists roles at first, she had to spend extra time practicing kung fu movements. Years later, Wang used the word “unimaginable” to describe how hard the days were when she first learned Kunqu. She was soaked in sweat when practicing movements in summer, while in winter she often had chilblains (冻疮) on her hands when training in shabby classrooms with broken windows. “But I was young and determined at the time. No matter how difficult, I always got up early the next morning to practice,” Wang recalls.

Wang says she did not love Kunqu at first, but in her early 20s,when she watched the show Peony Pavilion performed by Zhang Jiqing, a master of the art form, it clicked. “I was shocked,” Wang says. “Her every movement was full of elegance and delicacy. Each of her lines and songs was perfect. I was overwhelmed by the beauty of Kunqu for the first time in my life, and it has stayed with me since.” Now, Wang has herself become a master of Kunqu. Her performances have impressed generations and helped to promote the art form among young people.

1. Why did Wang’s parents turn down the troupe’s invitation at first?

A．They didn’t think Wang had artistic talent.

B．They saw no future in learning Kunqu Opera.

C．They didn’t want Wang to ignore her studies.

D．They regarded members of the troupe as insincere.

2. What does paragraph 3 mainly tell us?

A．Wang has made great efforts to learn Kunqu well.

B．Artists should be given more attention and care.

C．Traditional culture needs to be further promoted.

D．Wang has played a key role in the development of Kunqu.

3. What changed Wang’s attitude towards Kunqu Opera?

A．Winning the Plum Performance Award.

B．Joining the Suzhou Kunqu Opera Troupe.

C．Watching Zhang’s masterly performance.

D．Being greatly admired by the audience.

4. What does Wang’s story show us?

A．It is never too late to learn.	B．Rome was not built in a day.
C．Doing is better than saying.	D．Don’t judge a book by its cover.

3 . In zones like the Atacama, where winds bring fog but no rain, the invention of trap in the 1960s which can absorb that damp from the air has helped sustain settlements otherwise suffering from drought.

Fog traps are polymer-mesh (聚合物网) screens in metal frames. As misty air blows through them, drops of water get stuck to the mesh. Those absorb others until the result breaks free and runs down the screen, as a raindrop runs down a window glass, into a collector. A typical trap, with a 40-square-metre collecting area, produces about 200 liters a day. That is enough to supply around 60 people with drinking water. Such a collector costs $1,000 or so, and will last a decade.

A simple idea, then. But even simple technology can be upgraded. And that is exactly what Urszula Stachewicz of the AGH University of Science and Technology, in Krakow, Poland, proposes to do.

Her upgrade relies on giving the mesh a slight electrical charge. The outside of each thread in a mesh might be given one electrical polarity (极性) while the other polarity might be buried inside the thread. Just as static electricity (静电) will attract a balloon to a wall, a surface charge created in this way will attract small water drops from the air.

Previous attempts to do this have coated the threads with metal. But that is expensive. As they describe in ACS Namo, Dr. Stachewicz and her student Daniel Ura have done it by changing the way the threads work, which is cheap.

Dr. Stachewicz and Mr. Ura proposed to use a technique called electrospinning and they kept experimenting, which resulted in meshes able to collect 50% more water than commercial versions, at no extra cost of production. They expect soon to have a practical version which can be made available for sale. And that will certainly improve the lives of people who rely for their survival on drawing water not from a well, but from thin air.

1. Why does the author discuss the fog traps invented in the 1960s?

A．To show the difficulty of their upgrade.

B．To explain that they are helpful.

C．To voice that they are costly.

D．To urge a replacement of them.

2. What is the idea behind Urszula Stachewicz’ upgrade in technology?

A．Charge the mesh slightly.

B．Put the collectors in place.

C．Bury the two electrical polarities inside.

D．Coat the threads with metal.

3. What advantage may the up graded fog traps have over commercial ones?

A．They are more effective in collecting water.

B．They are less dependent on surroundings.

C．They are less expensive to produce.

D．They are more practical for sales.

4. Which of the following can be the best title for the text?

A．Public Interest in Fog Traps

B．Technology Demanded of Fog Traps

C．Old Fog Traps Upgraded for More Water

D．Technology Simplified for Water

4 . In a medical first, doctors transplanted（移植）a pig heart into a patient to save his life and a Maryland hospital said on Monday that he's doing well three days after the highly experimental surgery.

While it’s too soon to know if the operation really will work, it marks a step in the decades-long effort to one day use animal organs for life-saving transplants. Doctors at the University of Maryland Medical Center say the transplant showed that a heart from a genetically edited animal can function in the human body without immediate rejection.

The patient, David Bennett, 57, knew there was no guarantee that the experiment would work but he was dying, unsuitable for a human heart transplant and had no other option, his son told The Associated Press.

Such transplants, or xenotransplantation, have failed before, largely because patients' bodies rapidly rejected the animal organ. The difference this time: The Maryland surgeons used a heart from a pig that had undergone gene-editing to remove a sugar in its cells that's responsible for that super-fast organ rejection.

“I think you can characterize it as a breakthrough in medical science,” Dr. David Klassen, UNOS' chief medical officer, said of the Maryland transplant. Still, Klassen warned that it's only a first tentative（实验性的）step into exploring whether this time around, xenotransplantation might finally work.

It will be important to share the data gathered from this transplant before opening the option to more patients, said Karen Maschke, a research scholar at the Hastings Center, who is helping develop policy recommendations for the first clinical trials under financial aid from the National Institutes of Health. “Rushing into animal-to-human transplants without this information would not be advisable,” Maschke said.

The surgery took seven hours last Friday at the Baltimore hospital. "He realizes the importance of what was done," David Bennett Jr. said of his father. "He could not live, or he could last a day, or he could last a couple of days. I mean, we're in the unknown at this point.”

1. What is the top reason for the animal-to-human transplant on David Bennett?

A．He couldn't afford a human heart.

B．His son made the decision for him.

C．His life was at great risk.

D．The experiment is bound to save his life.

2. What is the purpose of the gene-editing in the case of the transplant in Maryland?

A．To avoid immediate rejection.

B．To remove cells from the pig's heart.

C．To guarantee the functions of the pig's heart.

D．To save time in the transplant.

3. What does Dr. David Klassen probably think of the transplant?

A．Casual.	B．Dangerous.
C．Successful.	D．Pioneering.

4. What message does the author mainly convey in the text?

A．Animals are our best friends.

B．Animals may be our life-saver.

C．Animals' organs have helped save many patients.

D．The animal-to-human transplant is now advisable to perform.

5 . Making a career out of building with Lego bricks sounds like a dream job. But it's the real deal for Sean Kenney, who turned his childhood hobby into a full-time career. For more than 15 years Kenney has been creating masterpieces using Lego bricks. His creations have been displayed at museums and zoos around the world, inspiring people of all ages.

Like most kids, Kenney spent his free time playing with Legos. As he got older, he got trained in his artistic skills as a cartoonist, studying visual arts at Rutgers University. Upon graduation he worked as a graphic(平面的) designer, often including Lego bricks into his work. It wasn’t until a botanical garden in Iowa approached him about making replicas(复制品）of some of its flowers and plants that he made the natural world his subject.

“One of the biggest challenges is trying to get the softness of features and the expressiveness of the face right while using blocky Lego bricks,” Kenney says.

To accomplish the tasks, Kenney cooperates with a group of artists who work together in teams of two or three to create each sculpture. Most pieces start out as rough drafts on paper, which are then transformed onto graph paper or computer models to plan out the basic shape and size of the animal. The artists then use these blueprints as a point of reference as they click together Lego bricks to build a prototype(原型). From start to finish, a single sculpture can take thousands of bricks and many months of labor to complete. Some large sculptures can take up to nine months to construct.

While COVID-19 may have an effect on travelling, it hasn’t stopped Kenney from creating new Lego sculptures. For 2022, he’s dreaming up a “colorful, powerful and playful” exhibition called “Nature POP” that gives the natural world a novel spin.

1. What inspired Sean Kenney to focus his works on nature?

A．His wonderful artistic skills as a cartoonist.

B．His previous work as a graphic designer.

C．Some flowers and plants in the natural world.

D．His working experience in a botanical garden.

2. What can be inferred about Sean Kenney’s job?

A．It involves much time and teamwork.

B．All his works feature plants.

C．It doesn’t require high artistic skills.

D．It has been stopped due to COVID-19.

3. What do the underlined words “a novel spin” probably mean?

A．A clear definition.	B．A new look.
C．An extra burden.	D．A fun ride.

4. Where may this text be taken from?

A．A travel brochure.	B．A novel.
C．A science fiction.	D．A newspaper.

6 . Podcasts recommended by Reader's Digest

The Last Days Of Vincent Van Gogh

The bright, sunny colors of Dutch painter Vincent Van Gogh's canvases may cover his tragic ending. But his last years and final days would also see him create much of the dramatic and amazing art that made him a legend.

I Will Teach You A Language

Learning a new language? Get your language learning questions answered by Oily Richards, who speaks 8 languages. Whatever is holding you back on the path to fluency, tune in twice a week to get your regular language learning tips and motivation.

Unsung Science

TV presenter David Pogue, a six-time Emmy winner, takes you behind the scenes into the worlds of the people who have made great achievements in science, technology, transport, food and health - who reveal their first inspirations, journeys and the times they almost gave up.

What Happened To You?

Oprah Winfrey and renowned brain expert Dr. Bruce Perry discuss the impact of our childhoods and how healing should begin with the way we phrase our questions. Rather than asking “What's wrong with you?", try "What happened to you?”

How to get podcasts（播客）？
To listen on the web: In a search engine, look them up and click on the play button.
To download: Download an app such as Podcatchers or iTunes and simply search by title.
To listen to RD talks: Go to www.rdasia.com/podcasts and click on the play button.
1. Who created a podcast for language learners?

A．Dr. Bruce Perry.	B．David Pogue.
C．Oprah Winfrey.	D．Oily Richards.

2. Which podcast concerns people with remarkable success in their careers?

A．The Last Days Of Vincent Van Gogh

B．I Will Teach You A Language

C．Unsung Science

D．What Happened To You?

3. How can you get podcasts as mentioned in the passage?

A．By talking to experts.	B．By referring to the web.
C．By watching TV.	D．By reading a paper magazine.

7 . Conor McGregor is an Irish Mixed Martial artist and the current unquestioned lightweight champion of Ultimate Fighting Championship (UFC). Mixed martial arts (MMA) (综合格斗) is highly tiring and fighters have to go through years of training and preparations to later be known as outstanding MMA fighters. Champions of a particular division after lots of preparations and countless number of fights still tend to lose to relatively new fighter. So this game is full of uncertainties.

Conor, at the age of 18, moved to Lucan with his parents to start a plumbing apprenticeship (管道工学徒). He worked as a plumber and got tired of a 9-to-5 job. His life took a turn when one day, he came across a MMA fighter named Tom Egan, and then started training MMA together with him and instantly had a skill at it. He started training full time in a nearby gym. Though the chances of him becoming a success among thousands of fighters around the world were low, he didn't lose hope.

He was highly motivated and always told his family that he would turn out to be big someday. He felt he must shoot footage (连续镜头) of himself frequently so that he could use the videos in the future for his biographical movie when he becomes successful. His confidence pushed him to the top. He at last became one of the biggest sports stars in the planet going beyond Cristiano Ronaldo in the Forbes list of the highest paid athletes of 2018.

I’ve been training so hard and my game is coming along. Without doubt you will see me in the UFC. I’ll let you know I would try to live up to expectation of you.   He finishes this sentence with tears in his eyes. It is so heartbreaking and at the same time so refreshing to watch those old videos. He is indeed a determined man and inspires millions of people around the world including me.

1. What can we learn about MMA champion?

A．Their success comes more by luck.	B．Their championship is easy to keep.
C．They struggle a lot to achieve success.	D．They are usually young and new fighters

2. Why did Conor often shoot footage of himself?

A．To find motivation from it.

B．To save some materials for his future use.

C．To improve himself by watching it.

D．To meet others’ expectations.

3. What can be learned from Conor’s experience?

A．Doing is better than saying.

B．Where there is a will, there is a way.

C．You can’t always get what you want.

D．A good beginning makes a good ending.

4. What is the passage mainly about?

A．The making of a great martial artist.

B．The idea of a biographical movie.

C．The charm of martial arts.

D．The cruelty of MMA.

8 . The SNAG stands for stereotyped nature-inspired aerial grasper and it’s a 3D-printed bird robot with claws. It can fly, stay on various surfaces catch and carry objects, just like the mighty falcon（隼）that was used as the source of inspiration in its development.

Each leg of the SNAG has two motors, one for helping it move back and forth, and the other one for grasping. Twenty printing attempts were necessary for the robot to finally reach its current structure, but it was worth it. Now, according to researchers, the flying machine has an impressively strong and high-speed clutch（离合器），being able to land and wrap its claws around a branch in about 20 milliseconds. SNAG has ankles lock, and there’s an accelerometer （加速计）on its right foot that reports that it’s landed while triggering（触发）a balancing process to stabilize it.

Scientists have already conducted several tests with the robot in rural areas and on different surfaces. In all the situations, the SNAG was able to catch objects thrown by hand, such as bean bags, a tennis ball, and more.

As for the applications of the bird-like robot, the SNAG can get attached to drones（无人机）and be used for search and rescue missions, wildfire monitoring, to offer just a few examples. Another great application is environmental research, with the SNAG also featuring a temperature and humidity（湿度）sensor. By using a robot that can act like a bird, you can unlock new ways of studying the environment, as explained by William Roderick, mechanical engineer and one of the researchers involved in the project. Now scientists are moving on to improving the robot’s situational awareness and flight control.

This isn’t the first time that nature has inspired groundbreaking technologies. We also wrote a piece recently about the F-SAM micro drone, which was inspired by the flight of samara（翼果）seeds, also known as “twisters” which have a special way of spinning down to the ground.

1. What gave the researchers inspiration for the SNAG’s development?

A．The plane.	B．The falcon.
C．The micro drone.	D．The samara seeds.

2. What’s the function of the accelerometer on the SNAG?

A．To balance the SNAG in flight.

B．To change the SNAG’s flying speed.

C．To keep the SNAG’s feet in balance.

D．To make the SNAG steady on a surface.

3. What does Paragraph 4 mainly tell us about the SNAG?

A．The SNAG has huge potential for practical use.

B．The SNAG has a long way to go before being used.

C．The SNAG will be helpful in putting out forest fires.

D．The SNAG is sensitive to temperature and humidity.

4. What may be one disadvantage of the SNAG right now?

A．It doesn’t know its situation well.

B．It can’t fly fast enough in the air.

C．It is easily broken by the branches.

D．It can’t catch objects with smooth surfaces.

9 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

In 1883, a creative bridge engineer named John Roebling     1     (inspire) by an idea to build a great bridge to connect New York with Long Island. However, bridge     2     (expert) throughout the world thought it was impossible and told Roebling to forget it. After much discussion and persuasion he managed     3     (convince) his son Washington, also a bridge engineer, that the bridge could in fact be built. The project started well, but an accident on the site took away     4     life of John Roebling and Washington was so severely brain-damaged that he could only be able to move a finger. However, Washington was never discouraged and still had a     5     (burn) desire to complete the bridge and his mind was still as sharp as ever. One day as he lay in his hospital bed,     6     (sudden) an idea hit him. By moving his finger, he slowly developed a code of     7     (communicate) with his wife. For 13 years Washington tapped out his instructions with his finger on his wife’s arm, until the bridge was finally completed. Today the Grand Brooklyn Bridge     8     (stand) in all its glory, showing us that we can make     9     is impossible possible with determination and persistence. It is also regarded     10     an honor to Washington’s determination not to be defeated by conditions.

10 . Are you looking for a good place to relax and sunbathe after a long period of work? Look through these amazing places, and pick out your favorite to spend your vacation!

Navagio Beach

Navagio Beach, well-known all around Europe, can be accessed by boat merely. If you love comfort, we recommend you should take all your daily use and need. The island cannot offer any facilities. Tourists will also need to bring sun umbrellas since you can hardly find a place to hide from the sun and heat on the island.

Grace Bay

There are lots of other resorts that are not less popular. However, most people prefer to go to Grace Bay. Stay there for a week or two, explore the Bay and drop by various restaurants as well as souvenir shops. Public transportation is not available. To get to the beach, one needs to rent a car. The climate is hot, so have some kind of sunscreen, sunglasses and a hat to protect your skin from sunburns.

Ko Phi Phi Don Island

Thailand offers limitless opportunities. There tourists find all they need to have a good rest and get entertained. The island is really appealing and its rich marine life makes the whole island totally fantastic. Remember the local food, and you will know how creative Thai cooks are.

Myrtos Beach

If you are in search of a perfect beach, then book a flight to Greece and visit Myrtos Beach. You’ll see the most splendid scenery once you arrive: green cliffs and snow-white pebbles(鹅卵石), particularly the breathtaking sea that changes its color depending on weather conditions and seasons. You can go there by boat, public transport or motorbike.

1. What can we know about Navagio Beach?

A．People can reach there only by one means of transport.

B．There are many Thai restaurants to taste local food.

C．People can purchase nearly all basic necessities on the beach.

D．Bringing a raincoat is strongly recommended if people plan to go there.

2. What makes Myrtos Beach especially appealing?

A．Its diverse living things in the sea.	B．Its fancy souvenir shops.
C．Its convenient transportations.	D．Its changeable color of the sea.

3. Who are the probable readers of the text?

A．Those who want to study the local environment.

B．Those who plan to get themselves refreshed.

C．Those who have courage to try extreme sports.

D．Those who like to have a healthy diet.