1. What led to Puri’s research?
A.A wildlife exhibition. | B.Her family’s hope | C.A market visit. |
A.They aren’t accurate. | B.They can’t catch pictures | C.They can’t locate hunters |
A.By using better visual recognition. |
B.By analyzing movement patterns. |
C.By studying animals’ living situations. |
A.It is not as good as his system |
B.It will stop much illegal hunting. |
C.Its performance needs to be proved. |
2 . It was a normal morning in March. Sondra Artis had just
As heading towards the school, Sondra noticed a burning smell. She
Sondra pulled into a parking lot and turned to face the 20 students on
“I told the kids that, ‘You know, we
The students hurried to the
Seconds after they all
The bus can be
“Sondra is a very good bus driver,”said a student. “She
A.sent away | B.turned down | C.seen off | D.picked up |
A.repaired | B.wiped | C.tapped | D.opened |
A.steam | B.smoke | C.fog | D.dust |
A.wrong | B.lucky | C.necessary | D.urgent |
A.anger | B.curiosity | C.embarrassment | D.worry |
A.duty | B.guard | C.board | D.vacation |
A.advantages | B.drills | C.signals | D.secrets |
A.met | B.separated | C.promised | D.practiced |
A.early | B.amazing | C.real | D.new |
A.exits | B.teacher | C.windows | D.lifesaver |
A.excited | B.tired | C.scared | D.optimistic |
A.hurriedly | B.safely | C.firstly | D.actively |
A.hid | B.landed | C.sat | D.escaped |
A.scene | B.school | C.park | D.destination |
A.searching | B.studying | C.thanking | D.counting |
A.replaced | B.exchanged | C.burnt | D.controlled |
A.eager | B.famous | C.grateful | D.qualified |
A.student | B.leader | C.driver | D.hero |
A.rewarded | B.excused | C.apologized | D.forgiven |
A.offers | B.deserves | C.demands | D.establishes |
I’m not Chinese, but I love Chinese New Year. There are many fun New Year
The sound of the drums,
The lion dance
I love all about the lion dance. The other day, I saw a film about a left-behind teenager who insisted on pursuing his dreams despite difficulties and
4 . The past few years have been difficult for 13-year-old Adeola Abraham. In 2020, the teen was diagnosed with a rare blood disorder, and he survived a successful bone marrow transplant (骨髓移植) and rounds of chemotherapy (化疗). Thankfully, Adeola is now out of the hospital. During his recovery, he found out that he had qualified for a once-in-a-lifetime opportunity to ask for a dream wish from Make-A-Wish Mississippi. While many teens would choose a memorable Disney trip, meet a favorite figure or get a PlayStation, Abraham instead chose to feed the homeless in his local community.
The Make-A-Wish Foundation is famous for brightening the lives of children suffering from critical illnesses by meeting their wishes. A wish typically falls into three categories: a wish to have something, go somewhere or meet someone. Abraham’s charitable wish to give came as a surprise to the organization. Linda Sermons, a Make-A-Wish Mississippi representative, said that Abraham’s generous wish was the first of its kind in the organization’s 35-year history. She was impressed with the teen’s maturity and sense of sympathy.
Make-A-Wish Mississippi approved of the teen’s wish in a big way. They created a service named after the teen, called Abraham’s Table, which would provide free meals to the homeless every month for the next year. Local businesses generously donated food and supplies, and receivers gathered in Jackson’s Poindexter Park for the meals. Abraham and his proud mom personally attended and handed out the food. Abraham’s Table fed more than 80 people at its first event. Abraham said it warmed his heart when the receivers came back to thank him for the meal he provided.
Abraham now wants to inspire other teens to get more involved in local charities. He also wants to continue his mission of helping others by starting his own nonprofit that helps those experiencing food insecurity.
1. What made Abraham a remarkable boy?A.His exceptional choice for a dream wish. | B.His great sufferings from a critical disease. |
C.His special qualifications for a dream wish. | D.His successful survival from a blood disorder. |
A.Eighty people or so benefited from Abraharn’s Table. |
B.Abraham’s act of kindness received positive reaction. |
C.The organization provided financial help for the homeless. |
D.The local businesses were greatly appreciated by the receivers. |
A.Energetic and determined. | B.Mature and intelligent. |
C.Sympathetic and selfless. | D.Generous and cautious. |
A.Hard work always pays off. | B.It’s a blessing to be a giver. |
C.Actions speak louder than words. | D.Miracles often occur in bad luck. |
5 . The Best National Parks to Visit in Winter
While most parks tend to draw families in the summer and fall, there are also ideal spots for adventurous winter trips.
Yellowstone National Park, Wyoming
The country’s oldest and best-known national park takes on an almost otherworldly atmosphere in winter: the air filled with rolling steam, the strong colors of hot springs, the surrounding white landscapes, let alone the impressive wildlife during this time, like bison, wolves, and playful red foxes. Just book a guided hiking tour to get a ranger’s perspective on the park and local people.
Joshua Tree National Park, California
With its giant red rocks and unique trees, you’ll feel like stepping onto a foreign planet as you spend hours hiking the Panorama Loop or Maze Loop. The park is recognized as an International Dark Sky Park, featuring virtually zero light pollution and the country’s best views of a starry sky.
Grand Canyon National Park, Arizona
A significantly lower number of visitors in winter means you can take in unblocked views of the South Rim, and get to see the rare beauty of the Grand Canyon dusted with snow. For those adventurous and daring, it is recommended to hike the Bright Angel Trail and take the chance to see the canyon’s wintertime wildlife, including mule deer, elk, and bald eagles.
Virgin Islands National Park, St. John
Surprise! Not all wintertime national park trips need to involve snow. Virgin Islands National Park is most famous for its white-sand beaches. You can also hike inland to visit old sugar plantations, or venture out to the water to swim along with sea turtles and manta rays. You will definitely enjoy a different winter here.
1. Which park will one choose if he/she is interested in stars?A.Yellowstone National Park. | B.Joshua Tree National Park. |
C.Grand Canyon National Park. | D.Virgin Islands National Park. |
A.We can have a poor view of the South Rim there. | B.It lies in an area with rolling steam and hot springs. |
C.There is a slight decline in visitor numbers in winter. | D.The Bright Angel Trail is challenging in cold weather. |
A.Hiking. | B.Skiing. | C.Swimming. | D.Hunting. |
6 . 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. |
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. |
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. |
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. |
7 . Many orb weaver spiders have yellowish stripes or spots on their undersides for a good reason. That color yellow attracts bees and flies into a spider’s web, a new study suggests.
Orb weaver spiders get their name because they spin and sit on circular webs. But these spiders and their bright colors seem contradictory. Why would a spider look so noticeable? In the new study, researchers examined if yellow coloration on a species of golden orb weaver spiders (Nephila pilipes) attracts their flying insect prey. Found across Asia, this spider sits on its web day and night with its underside facing open space. The team found more than 250 female N. pilipes in the wild. They removed each female and either left its web empty or replaced it with a cardboard spider. These cardboard models had paper stripes of yellow, blue or black color stuck to them.
After almost 1,800 hours of video recording the webs, the team found that during the daytime, the yellow-striped model that looked like a real N. pilipes attracted more than twice as many insects, including bees and flies as any other fake spider or empty web. What's more, the yellow color worked just as well at night attracting moths, the scientists reported.
The team then searched online zoological databases for associations between yellow markings and prey attraction in orb weaver spiders. Surveying dozens of distantly related species showed that yellow stripes or spots were more likely to have evolved in orb weaver spiders that sit on their webs in open, bright spaces, where visual baits may be more effective.
Scientists don’t yet know why insects are attracted to yellow stripes on orb weaver spiders. Perhaps the prey mistake a spider for a yellow-flecked flower, a hypothesis (假说) supported by the fact that most prey attracted were pollinators (传粉者).
1. What made the scientists confused about orb weaver spiders?A.Their name. | B.Their prey. | C.Their coloration. | D.Their webs. |
A.By finding wild male and female N. pilipes. |
B.By filling each web with a cardboard spider. |
C.By studying the stripes on female N. pilipes. |
D.By using fake spiders or leaving the web empty. |
A.Insects knew how to avoid an empty web. |
B.The spiders’ stripes could attract insects. |
C.Insects could be attracted to dark colors. |
D.Yellow markings didn't function at night. |
A.Yellow Stripes Work for the Spiders Hunting for Food |
B.Yellow Stripes on Orb Weaver Spiders Have Evolved |
C.Stripes and Spots can Easily Draw Much more Insects |
D.Preys are Drawn to Spiders on Circular Webs Quickly |
Chinese carmakers are taking the lead in developing the intelligent cockpit (驾驶座舱),
Intelligent cockpits combine smart technologies with
According to a report
Of those, China owns 82, 300 applications, accounting for 42.56 percent of the total and
Japan ranks
A representative from PatSnap has said the three countries represent the development trend of the automobile industry to a certain degree as they
It can
My neighbor told me immediately after I got home that my uncle had visited and just left my place. As I thought of this, I ran even
I ran until it occurred to me that I
Now thinking more reasonably, I reached for my phone
I had taken the wrong way.
10 . Practicing gratitude can increase feelings of happiness and life satisfaction while decreasing depressive symptoms.
Reflect on the gifts of hardship. There is no question that life can be challenging, as things don’t always turn out the way we’d hoped.
Express gratitude to others in writing.
When you finish the challenges, hopefully you’ll be inspired by the mood-boosting benefits and continue actively practicing gratitude on a daily basis.
A.Catch the chances of acting kindness. |
B.Notice and appreciate the small stuff. |
C.Think of three people in your life that you truly appreciate. |
D.All of us experience dilemma at different points in our lives. |
E.The benefits of thankfulness extend to both the giver and receiver. |
F.Gratitude takes practice to realize its full potential, just like any other skill. |
G.Once recognizing their efforts, you can consistently show your appreciation better. |