1 . Sometimes trees can be a little too respectful of one another’s boundaries. Or maybe they just stop growing when they get too close. The phenomenon is called crown (树冠) shyness-the tops of individual trees do not touch each other, creating a visible gap between the tree crowns.
Experts aren’t exactly sure why the naturally occurring phenomenon happens, but they’ve been studying it for decades and have a few theories. In 1955 a biologist Putz noticed that the trees, which grow close together, can rub against each other when the wind is strong enough. The resulting abrasion (磨损) helps form and maintain the shyness gaps. In 1986, this theory was backed up by Dr. Miguel Franco, who noticed that the branches of Picea sitchensis and Larix kaempferi trees suffered physical damage during abrasion, which killed the leading branches. The presence of broken tips at the points where branches meet lends support to the abrasion theory.
However, one Malaysian scholar suggests that shyness gaps result from the influences individual trees have on one another. Trees cannot move, so if they have nearby neighbors, they are forced to compete for resources, especially light. According to this theory, each tree forces its neighbors into a pattern that maximizes resource collection and minimizes harmful competition. Trees grow in the direction of light, so branches would naturally try to avoid other plants that could shade them or prevent their growth, creating a gap between the tree crowns.
Another possible reason for crown shyness is to prevent the spread of harmful insects, which could eat the tree’s leaves. Still someone believes the best scientific explanation so far is that the leaves of the tree release certain chemicals to stop other trees from growing too close.
The answer could be just one of the above, or a combination of more. But some species have been adapted to take advantage of crown shyness to grow into shapes that go well with nearby trees and therefore economic profits can be maximized out of the phenomenon.
1. What is crown shyness according to the text?A.A behavior exhibited by insects in the crown of trees. |
B.A disease that affects the leaves of certain tree species. |
C.A phenomenon where trees grow taller than surrounding ones. |
D.An occurrence where crowns of trees avoid touching each other. |
A.Supportive. | B.Critical. | C.Tolerant. | D.Uncertain. |
A.The blowing wind effect. | B.The release of a special chemical. |
C.A natural way of shade avoidance. | D.An adaptation to stop insect spreading. |
A.A further explanation of the theoretic framework. |
B.Supporting evidence for the research conclusions. |
C.A reasonable doubt about the research implications. |
D.Practical application of crown shyness phenomenon. |
2 . Van Gogh painted sunflowers for the first time in the summer of 1886. Two years later, his interest appeared again after he settled in Arles. After he had invited the French artist Paul Gauguin, whom he admired, to join his Studio of the South, he began painting sunflowers to brighten up the whitewashed walls of the yellow house he was living in, not far from the town’s railway station.
Gauguin accepted Van Gogh’s invitation. When he began dragging his heels, Van Gogh painted the last two of the four original Sunflowers for the modest bedroom where his guest would sleep following his arrival that autumn. “Van Gogh saw the Sunflowers for Gauguin’s bedroom as a way of attracting his friend to come from Brittany,” says Bailey.
According to Martin Gayford, “Gauguin was very surprised by the Sunflowers, which he repeatedly praised and asked for as a gift. Years later, Gauguin himself painted some sunflower pictures.”
Van Gogh’s Sunflowers stand for his relationship with Gauguin. “I think he painted them for the joy of it,” says Jansen. “Van Gogh was at the height of his powers in the summer of 1888,” explains Bailey. “He painted the Sunflowers quickly and with great energy and confidence.” Van Gogh wrote to his brother Theo in late August, “I’m painting quickly now, which won’t surprise you when it’s a question of painting large Sunflowers.”
Van Gogh recognized at once that he had created something important and that his sunflowers were so different. As he told Theo in January 1889, while other artists were known for painting other flowers, “The sunflower is mine.” This, in fact, explains the reason for the popularity of Van Gogh’s Sunflowers today.
1. Van Gogh painted sunflowers in 1888 in order to ________.A.give them to Gauguin | B.make his living |
C.decorate his house | D.show his artistic talent to others |
A.In the British museum | B.In Gauguin’s bedroom |
C.In the town’s railway station | D.In a rich businessman’s house |
A.Putting up his paintings. | B.Packing up his baggage. |
C.Preparing for his departure. | D.delaying his coming. |
A.Van Gogh was not good at painting large Sunflowers |
B.Van Gogh had much trouble in painting the Sunflowers |
C.Van Gogh didn’t like his Sunflowers at all at that time |
D.Van Gogh realized the Sunflowers would make him known |
3 . There’s been growing concerns about the damaging impact of human travel on the environment in recent years. Irresponsible tourism is a main cause of environmental destruction. The destruction of the natural environment is an urgent matter as it directly affects everyone’s well-being.
Avoid takeaways as many as possible
Buying “food to go” seems logical when you are in a rush. Though convenient, this kind of take-out packaging often uses disposable (一次性的) plastic boxes and bags, which can contribute significantly to environmental pollution if not properly disposed of.
Go for train or bus when traveling nationally
Transportation accounts for nearly a third of all greenhouse gases produced in the environment. Flying and driving, in particular, are major contributors to carbon emissions within the transportation sector, with domestic flying emitting more carbon than driving.
Stay on designated roads and foot paths
Responsible tourism is about having as minimum physical interaction with the wild as possible. We not only protect the fragile ecosystems around us but also ensure our own safety.
Pick up trash after yourself and others
In conclusion, responsible tourism is traveling with awareness, respect, and consideration for the places you visit. It’s about ensuring that your travel experiences enrich not only your own lives but also contribute positively to the destinations you explore, leaving them better than you found them.
A.Therefore, hike for some trips at times. |
B.So stick to marked roads and footpaths. |
C.Pay attention to the trash while traveling. |
D.Make a habit of collecting trash after yourself. |
E.Therefore, use public transport for short travels. |
F.You don’t have to be in a rush when on holiday. |
G.These concerns have resulted in the green travel campaign. |
4 . Nowadays, a lot of students are under great stress. Generally speaking, finding something you enjoy doing can improve the quality of your life and reduce your stress levels.
Research the hobby or activity you would like to get involved in. Find out how much time and money you will need to devote to starting and continuing the activity. For example, some sports-related interests might require special equipment.
Talk with other people who are involved in some of the activities you are interested in.
A.Take a chance on a hobby and see if you enjoy it. |
B.You can get first-hand knowledge by interviewing someone about a particular hobby. |
C.A hobby can connect you with other people. |
D.Think about how much free time you can devote to a hobby. |
E.It is easy to decide whether a particular hobby is right for you. |
F.Think about how a hobby benefits you. |
G.You can find information about hobbies and interests on Find My Hobby’s website. |
5 . How to save money to visit Shanghai Disneyland?
The “happiest place on earth” is a top destination on many families’ bucket lists. But taking a vacation to Disney World can be difficult to do on a budget. There are some considerations that you can make to reduce the cost of your Disney World vacation.
1. Buy Souvenirs in AdvanceDisney has influenced practically every industry, which makes it easy to find Disney items anywhere, from Walmart, Target, and your local grocery store to department stores and Amazon. You can save a lot of money by purchasing items before your trip at these less-expensive places than at Disneyland.
2. Make an Autograph BookAn autograph book is seen as a must-have by many Disneyland enthusiasts and is a memory you can take home with you. These books can cost anywhere from $7.95 to $19.95 at the Disney Store and up to $30 for the latest-and-greatest autograph book at Disneyland, such as the park’s 60th anniversary edition. Other choices can get the job done for under $5.For example, you can buy a small photo album, cute pads or notebooks.
3. Eat Breakfast before You ArriveBreakfast is almost as pricey (昂贵的) as lunch or dinner if you eat inside the Disneyland parks. If you have a hotel with a free breakfast, take advantage of it. If you want to eat out, eat at a local restaurant that is inexpensive or has a kids’ menu, such as McDonald’s which is close to the park.
4.Take Advantage of Discounts Offered to Special GroupsDisney offers a wide variety of discounts, including for military service members, college students, teachers, and youth groups. If you think you might qualify for a special discount or group rate, call the Disneyland Resort to book tickets.
1. It may take you more money to buy souvenirs at .A.Disneyland | B.Department stores | C.Walmart | D.Amazon |
A.$7.95. | B.$19.95. | C.$5. | D.$30. |
A.You had better eat at Disneyland. | B.You can eat at a local restaurant. |
C.You should prepare it well at home. | D.You can ask the hotel to supply it for free. |
6 . The village super league, or “Cun Chao” in Chinese, is a soccer game among different villages in Rongjiang county, Guizhou Province, and it is so down-to-earth but popular that it has attracted not only the attention of football legend Michael Owen but also millions of Chinese netizens (网民), who are paying attention to this non-professional football league.
The players come from a variety of backgrounds. They are vendors, drivers, students, carpenters, tilers, former butchers, and brick factory workers. Their ages range from 15 to over 40 years old. At the game site, representatives wearing various traditional national costumes play national musical instruments and enter the field with the players, and perform songs and dances.
“This kind of football game is natural and with ‘pureness’ and it is driven by the love of the ordinary people not the economic benefits. The game is providing not only values of sports, but also a way of socializing with low costs,” an expert noted. This kind of atmosphere is very rarely seen and is treasured, especially for people in urban areas who are getting increasingly busy and under great work pressure, and when they look at the fun, relaxing and down-to-earth way of life in the countryside, they will naturally be interested, experts said. There is at least one good effect brought by the “Cun Chao” to Chinese soccer—to make more people see the pureness of joy and encourage them to play soccer.
Today, more and more grassroots sports events are held in the mountains and are using sports as a medium to showcase the unique charm of the local area, reflecting an energetic lifestyle filled with agricultural activities and rural fun.
1. Why does the author mention Michael Owen in Paragraph 1?A.To show he is a household name in China. |
B.To voice his view on modern soccer game. |
C.To show the great popularity (流行) of “Cun Chao”. |
D.To stress the importance of “Cun Chao”. |
A.They are from all walks of life. |
B.Seniors are welcome to join the team. |
C.They are able to play national musical instruments. |
D.They wear traditional costumes on the soccer field. |
A.Slow-paced (慢节奏的). | B.Highly stressed. |
C.High-cost. | D.Nonprofitable. |
A.The village super league wins the hearts of Chinese. |
B.The village super league: From nobody to somebody. |
C.The village super league bridges the countryside and the city. |
D.The village super league promises the future of Chinese soccer. |
7 . China has set new rules limiting the amount of time children can play online games. The rules limit children to just three hours of online game playing a week. That is one hour between 8 p. m. and 9 p. m. on Friday, Saturday and Sunday most weeks.
Li Zhanguo has two children aged 4 and 8. Even though they do not have smartphones, they enjoy playing online games. Like many other parents. Li is happy with new government rules. But experts say it is unclear if such policies can help prevent addiction to online games. Children might just get addicted to social media instead. In the end, experts say, parents should be the ones to set limits and support good practice.
There has been a growing concern in China about gaming addiction among children. Government reports in 2018 found that about one in ten Chinese children were addicted to the Internet. The new rules are part of an effort to prevent young people from spending too much time on unhealthy entertainment. That includes what officials call the “irrational fan culture”
Under the new rules, the responsibility for making sure children play only three hours a day as largely on Chinese gaming companies like Net Ease and Ten cent. Companies have set up real-name registration systems to prevent young users from going past game time limits. They have used facial recognition technology to check their identities. And they have also set up a program that permits people to report what is against the law. It is unclear what punishments gaming companies may face if they do not carry out the policies. And even if such policies are performed, it is also unclear whether they can prevent online addiction.
A specialist treating Internet addiction expects about 20 percent of children will find ways to break the rules by borrowing accounts of their older relatives and find a way around facial recognition. In his opinion, short-video alps such as Douyin and Kuaishou are also very popular in China. They are not under the same restrictions as games.
1. When can children play games according to the new rules?A.Between 8 p. m. and 9 p. m. On Friday. | B.Between 8 p. m. and 9 p. m. On Tuesday. |
C.Between 10 p. m. and 11 p. m. On Saturday. | D.Between 10 p. m. and all p. m. On Thursday. |
A.the new rules can stop children’s addiction to social media |
B.companies are more responsible for kids ‘ obeying the rules |
C.the new rules will help prevent children playing online games |
D.parents play a greater part in limiting the time of online games |
A.Design an advanced program. | B.Use facial recognition systems. |
C.Set up real-name registration systems. | D.Borrow accounts of their older relatives. |
A.Rules Limiting Short-video alps | B.Rules Limiting Video Game Time |
C.Rules Banning Irrational Fan Culture | D.Rules Breaking Addition to Social Media |
8 . As I reflect on my educational journey, it becomes evident that the impact of education extends far beyond the ranges of the classroom. Education has been the guiding force that has shaped not only my academic progress but also my personal development and outlook on the world around me.
From my earliest days in school, education has stimulated my intellectual curiosity and developed a deep-seated passion for learning. I remember the thrill of getting on a voyage of discovery with each new lesson, as my understanding of the world expanded through the acquisition (获得) of knowledge and the development of critical thinking skills. These experiences have not only nurtured (培养) my intellectual growth but have also equipped me with the tools to navigate the complexities of the modern world.
However, the impact of education goes beyond the field of academia. It has played a critical role in shaping my character and values, equipping me with a sense of sympathy, understanding, and respect for others. Through interactions with peers from diverse backgrounds and exposure to various perspectives, education has been beneficial in cultivating my social and emotional intelligence. It has taught me the value of cooperation, the importance of embracing diversity, and the power of empathy (共情) in making meaningful connections with others.
Furthermore, education has opened doors to opportunities that have paved the way for my future hard work. It has provided me with the knowledge and skills necessary to pursue my passions, offering a platform for personal and professional growth. The transformative potential of education is evident in the countless stories of individuals whose lives have been improved through access to quality education, breaking the barriers of social and economic inequality.
In conclusion, my journey through the fields of education has been nothing short of transformative. It has expanded my horizons, enriched my understanding of the world, and equipped me with the toots to make meaningful contributions to society. As I continue on this path of lifelong learning, I am deeply grateful for the profound impact of education on my life and remain committed to nurturing its transformative power in the lives of others.
1. According to Para. 2, how did education expand the author’s understanding of the world?A.By equipping the author with knowledge. |
B.By encouraging the author to accept others’ ideas. |
C.By informing the author of latest scientific development, |
D.By making the author more curious about others’perspectives. |
A.It made the author competitive and individualistic. |
B.It taught the author to value cooperation and varies. |
C.It made it easier for the author to solve the difficulties. |
D.It encourages the author to stick to his own opinion. |
A.Education has unlimited potential to make individuals’ lives more colorful. |
B.Education is primarily focused on maintaining social development. |
C.Education ensures better working opportunities in the future. |
D.Education has the power to fight against inequality. |
A.The importance of education technology. | B.The role of author’s family education. |
C.The transformative power of education. | D.The improvement of individuals’ education. |
9 . Mice were given a memory test in a lab at the University of New South Wales, in Australia. Scientist Margaret Morris set them in their usual box, but she rearranged the objects in the box. Some mice smelled them curiously, but others just moved on. They didn’t remember the objects were once in a different place.
The mice with sharper memory were fed with a regular diet of low-fat, healthy food. However, the mice that ate lots of junk food for two weeks — such as cake, meat pies, chips, and cookies — were forgetful.
Food can have the same effect on people, too. “If you’re eating junk food regularly, and not eating enough fruit and vegetables,” Morris said, “the changes inside your body may be affecting brain function.” Changes inside the body can affect a person’s overall health, too.
Scientists have long known that the brain communicates with the stomach to control digestion. Recently, they have found that the stomach talks back. It may even tell the brain what to do.
Foods with too much salt and sugar affect the microbiome (肠道菌群) in your body by killing the right bacteria (细菌) in it. These bacteria protect you from illness and keep your mind sharp. Lacking them can lead to being overweight and depression.
Robert Knight is a scientist at the University of California, San Diego. He suggests eating yogurt, because it is packed with healthy bacteria. Does that mean no French fries? “Having them sometimes is okay,” Knight says. “It’s the long-term habits that really matter. Being good to your microbiome over the next six months is a lot more important than what you ate yesterday, or what you eat tomorrow.”
1. In the memory test, some mice moved on because ________.A.they are forgetful | B.they eat a lot of food |
C.they are not curious | D.they eat low-fat food |
A.microbiome | B.bacteria |
C.too much salt and sugar | D.yogurt |
A.People must not eat French fries to protect their mircobiomes. |
B.Eating yogurt for six month is good for body health. |
C.It’s necessary to maintain long-term healthy eating habits. |
D.What you eat tomorrow is the most important thing. |
A.The effects of food on memory | B.The effects of food on mice |
C.The effects of microbiome on health | D.The effects of food on health |
10 . Road Trip Apps You Need Before You Leave
Best App for Route PlanningEver wonder how do livery drivers manage to hit so many different places in a relatively short amount of time? It’s because they’re using an app like Road Warrior to plan their routes to be as efficient as possible. However, while many other route planning apps only take things like traffic into account, Road Warrior includes lots of other time-sucking details. The subscription options start at $10 per month.
Best App for Gas PricesGas prices have been something of a catastrophe recently, so travelers are naturally focused on finding the lowest rates whenever possible. GasBuddy is one of the most popular apps for locating affordable gas, especially on long road trips. Simply enter the starting point and destination, and then watch as all of the cheapest gas prices along your route pop up. Like many apps, there is a free version, as well as a premium(额外费用) option with added features.
Best App for Planning SightseeingFor people who aren’t totally focused on getting from point A to point B in the fastest time possible, the Road Trippers app is an absolute must-have. Users can pan their trip from start to finish with as many as 150 waypoints stops when using the premium version of the app, which costs $29.99 per year. It won’t let you miss the famous scenic spots along the way. It estimates fuel costs allows for RV drivers to customize routes friendly to their particular vehicle and lets the user cooperate with friends who are also on the road.
Best App for Family Games and EntertainmentSure you could listen to music or watch movies, but sometimes it’s fun to throw it way back with classic travel games. The Plates Family Travel app is a modernized version of the classic license plate game. There also a map feature that shows you exactly where you saw all the license plates on your road trip. This app is available for Apple or Google devices for free.
1. Which app can help you save time?A.GasBuddy. | B.Road Warrior. | C.RondTrippers. | D.Plates Family Travel. |
A.Those who like playing games. | B.Those who need license plates. |
C.Those who prefer a unique route. | D.Those who care about gas prices. |
A.It is available free of charge. | B.It provides the shortest route. |
C.It recommends tourist attractions. | D.It helps its users to make friends. |