1 . Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?
Professor Simard form University of British Columbia explains how trees are much more complex than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. As far as Simard is concerned, actually the opposite is true: trees survive through their co-operation, passing around necessary nutrition “depending on who needs it”.
Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it affects all.
Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend. She explains how moribund trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest.
“We didn’t take any notice of it” Simard says sadly. “Trees move nutrition into the young trees before they die, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.
1. Which statement would Simard agree with?| A．Trees support each other. |
| B．Trees compete for nutrition. |
| C．Trees depend on their needs. |
| D．Trees co-operate with the fittest. |
| A．To explain the importance of fungi networks. |
| B．To introduce the function of neurons networks. |
| C．To illustrate how Nitrogen and carbon are shared. |
| D．To show how the forest ecological system works. |
| A．Energetic. | B．Ancient. | C．Previous | D．Dying |
| A．Protect tree societies. |
| B．Cut down oldest trees. |
| C．Get nutrition from nature. |
| D．Improve our environment. |
2 . Procrastinators (拖延症患者)，take note: If you’ve tried building self-control and you’re still putting things off, maybe you need to try something different. One new approach: Check your mood.
Often, procrastinators attempt to avoid the anxiety or worry aroused by a tough task with activities aimed at repairing their mood, such as checking Facebook or taking a nap. But the pattern, which researchers call “giving in to feel good,” makes procrastinators feel worse later, when they face the consequences of missing a deadline or making a last-minute effort, says Timothy Pychyl, an associate professor of psychology at Carleton University.
Increasingly, psychologists and time-management consultants are focusing on a new strategy: helping procrastinators see how attempts at mood repair are destroying their efforts and learn to control their emotions in more productive ways.
The new approach is based on several studies in the past two years showing that negative emotions can damage attempts at self-control. It fills a gap among established time-management methods, which stress behavioral changes such as adopting a new organizing system or doing exercises to build willpower.
Researchers have come up with a playbook of strategies to help procrastinators turn mood repair to their advantage. Some are tried-and-true classics: Dr. Pychyl advises procrastinators to just get started, and make the doorstep for getting started quite low. “Procrastinators are more likely to put the technique to use when they understand how mood repair works,” says Dr. Pychyl, author of a 2013 book, “Solving the Procrastination Puzzle.” He adds,“A real motive power comes from doing what we intend to do—the things that are important to us.”
He also advises procrastinators to practice “time travel”—projecting themselves into the future to imagine the good feelings they will have after finishing a task, or the bad ones they will have if they don’t. This cures procrastinators’ tendency to get so stuck in present anxieties and worries that they fail to think about the future.
Another mood-repair strategy, self-forgiveness, is aimed at dismissing the self-blame. University freshmen who forgave themselves for procrastinating on studying for the first exam in a course procrastinated less on the next exam, according to a recent study led by Michael Wohl, an associate professor of psychology at Carleton.
Thomas Flint learned about the technique by reading research on self-control, including studies by Dr. Sirois and Dr. Pychyl. He put it to use after his family moved recently to a new house. Instead of beating himself up for failing to unpack all the boxes gathered in his garage right away, Mr. Flint decided to forgive himself and start with a single step. I’d say, "OK, I’m going to take an hour, with a goal of getting the TV set up, and that's it, he says; then he watched a TV show as a reward. Allowing himself to do the task in stages, he says, is “a victory.”
1. What does Timothy Pychyl mean by mentioning the “giving in to feel good” practice in Paragraph 2?| A．It probably does more harm than good. |
| B．It prevents procrastinators from giving up. |
| C．It helps procrastinators meet the deadline. |
| D．It effectively drives away anxiety and worry. |
| A．Sticking to one’s intention. |
| B．Doing things that really matter. |
| C．Getting started from a low doorstep. |
| D．Learning important techniques of mood repair. |
| A．To make their future plan more practical. |
| B．To accelerate the speed of finishing the task. |
| C．To stop people from worrying about their travel. |
| D．To free people from the present negative emotions. |
| A．Self-blame prevents students from putting things off. |
| B．Procrastinators are still able to get good scores in exams. |
| C．University freshmen can get rid of procrastination easily. |
| D．Self-forgiveness is an effective way to cure procrastination. |
3 . Every kid has their own favorites. Dolls, dinosaurs, remote controls and cellphones — they might have a toy box with a wide range of play things to keep them entertained, but there's firm favorite they always reach for first-cars. Although the sex difference in the toy world remains, it's not only little boys who are drawn to all things with wheels. That my 20-month-old daughter dotes on the red bus toy is the proof of this.
From age 0 to 2, children are in the sensorimotor (感觉运动的) stage of development, explains Alyssa Wilkins. “They are learning by absorbing everything through their senses — sight, touch, taste, smell and hearing,” Wilkins says. “Toys and real-life objects like cars are very sensorily engaging. Kids can interact with toy cars, trucks, etc. through spinning (旋转) their wheels, watching them move in a variety of directions, or hearing the sounds they make.”
Plus, kids are just naturally drawn to loud and moving objects. “They see the lights on the cars and the rolling wheels, and hear the sound of the running engine. It's very engaging,” Wilkins says. “Kids will always be drawn to attractive and loud things because that is what engages their brain and sensory systems.”
Another appeal of toy vehicles is that they're typically small enough to fit in a child's hand Cars become the favorite of both boys and girls because they can put their cars in their pockets r carry them around. A car is also a cause-and-effect toy — it teaches children that their actions can make something happen. “It's super interesting and exciting for kids to learn that they can change something in their environment, and they may feel proud of what they have done,” Capanna-Hodge says.
Every child is unique in how they engage with toys, and the reasons for their play style may be diverse and complex. Ultimately, how your kids play with their toy vehicles could be a little window into what controls or excites them.
1. What does the underlined phrase “dotes on” in Paragraph I mean?| A．Turns down. | B．Goes in for. | C．Runs into. | D．Has control of. |
| A．The influence form parents. | B．The shape of toys vehicles. |
| C．The exciting sensory input. | D．The peaceful learning environment. |
| A．The smaller the toy vehicles are, the more the kids like them. |
| B．Boys perform better than girls while playing with toy vehicles. |
| C．The more toy vehicles the kids have, the more benefits the kids get. |
| D．Kids can gain a sense of achievement from playing with toy vehicles. |
| A．Why toy vehicles are kids' favorites |
| B．How toy vehicles can boost kids' five sense |
| C．Why parents choose toy vehicles for their kids |
| D．How parents can encourage kids to play with toy vehicles |
A． | B． |
C． | D． |
4 . Do you know what “zero” means? Have you ever even stopped to think much about this concept (概念)? It’s an easy one to take for granted. Of course, everyone can understand the concept of nothing, or having nothing.
But did you know that some animals can understand zero as well? Experiments with monkeys and birds have proven that they can master this concept. But now, the understanding of zero has been found in a most unlikely candidate (候选人): bees.
According to a recently published study in the journal Science, Australian and French researchers worked together to conduct experiments to prove that bees are the first insects to “understand that zero belongs at the lower end of a sequence (序列) of numbers”, according to a report by Science Daily.
Scarlett Howard, a researcher at RMIT University in Melbourne, trained bees to choose from several cards with different numbers of shapes printed on them. Correctly choosing the card with the fewest shapes earned them a reward of sugar water. For example, the bees learned to choose three elements when presented with three VS four; or two elements when presented with two VS three. And then these bees were presented a challenge – a card that was entirely blank and that they had never seen before. But 64 percent of the time, they chose to fly toward the blank card instead of the card that had shapes on it. This suggests that the insects understand that zero stands for something less than two or three, according to Science magazine.
Associate Professor Adrian Dyer, also from RMIT University, said the number zero was the basis of modern mathematical and technological progress.
He told Science Daily that the findings have opened a door to new understandings of how different brains understand zero. “If bees can understand zero with a brain of less than a million neurons (神经元) [compared with the 86,000 million neurons of a human brain], it suggests there are simple and efficient (有效的) ways to teach artificial (人工的) intelligence new tricks .”
1. Why did the writer ask two questions in Para.1?| A．To expect an exact answer. | B．To introduce the topic. |
| C．To show the concept of “zero”. | D．To inspire scientists to study. |
| A．Most insects can recognize different shapes. |
| B．Bees can understand the meaning of zero. |
| C．Bees are better at numbers than monkeys and birds. |
| D．Most insects can be trained to understand numbers. |
| A．The bees were presented with one card each time. |
| B．The bees were trained to choose the card with more shapes. |
| C．The bees were rewarded when they chose an intended card . |
| D．Different groups of bees were trained at the same time. |
| A．By giving examples. | B．By designing cards. |
| C．By showing numbers. | D．By doing experimments. |
| A．It shows there might be easier ways to train AI. |
| B．It proves that animals can understand what zero is. |
| C．It suggests bees can complete more challenging tasks |
| D．It explains the importance of zero in modern mathematics. |
5 . Most online fraud(诈骗) involves identity theft Passwords help. But many can be guessed. Newer phones, tablets, laptops and desktop computers often have strengthened security with fingerprint and facial recognition. But these can be imitated. That is why a new approach, behavioural biometrics(行为生物识别) is gaining ground.
It relies on the wealth of measurements made by today’s devices. These include data from sensors that reveal how people hold their phones when using them, how they carry them and even the way they walk. Touchscreens, keyboards and mice can be monitored(监测) to show the distinctive ways in which someone’s fingers and hands move. These features can then be used to determine whether someone attempting to make a deal is likely to be the device’s habitual user.
“Behavioural biometrics make it possible to identify an individual’s unique motion fingerprint”, says John Whaley, head of Unifyid, a firm in Silicon Valley that is involved in the field. When coupled with information about a user’s finger pressure and speed on the touchscreen, as well as a device’s regular places of use—as revealed by its GPS unit—that user’s identity can be pretty well determined.
Used wisely, behavioural biometrics could be a great benefit. In fact, Unifyid and an unnamed car company are even developing a system that unlocks the doors of a vehicle once the pace of the driver, as measured by his phone, is recognized. Used unwisely, however, the system would become yet another electronic spy on people’s privacy, permitting complete strangers to monitor your every action, from the moment you reach for your phone in the morning, to when you throw it on the floor at night.
1. What is behavioural biometrics for?| A．To identify network crime | B．To ensure network security. |
| C．To track online fraud. | D．To gather online data. |
| A．By limiting and discovering users’ passwords. |
| B．By spotting and revealing where a device is regularly used. |
| C．By offering and analyzing users’ facial features. |
| D．By monitoring and comparing how users interact with devices. |
| A．Doubtful. | B．Concerned | C．Favorable. | D．Objective. |
| A．Science and technology. | B．Health and wealth. |
| C．Finance and economics | D．Books and arts |
6 . Do you continue to be healthy in social isolation? NASA is looking for people to spend 8 months locked in a Russian lab for a new experiment.
When humans go to the moon and travel to Mars, they will need to be prepared for long-term space travel and even longer stays on these far-off destinations. Currently, NASA's Artemis program aims to land humans on the moon for the first time since NASA's Apollo 17 mission landed in 1972.
While the moon is the main goal of NASA's Artemis program, the agency's larger goal is to send people to Mars. But long-term space travel and habitation won't be easy. Such missions will present both physical and mental challenges as astronauts work to not only survive, but perform important scientific research in uniquely difficult environments.
In the upcoming NASA-Russia experiment, a group of people will live in a closed facility at Russia's Institute for Biomedical Problems, which is in Moscow. This habitat facility was used in2011 for notable series of Russian mock (模拟的) Mars missions known as Mars 500. During these missions, groups of people spent 520 and 105 days on two separate missions in the facility.
The facility, according to the statement, will have "environmental factors similar to those astronauts are expected to experience on future missions to Mars". The group of people will spend 8 months living together in isolation and working on scientific research.
By living and working in this Mars-like environment, participants in this study will help NASA researchers better understand the psychological and physiological (心理和生理的) effects of isolation. These missions help researchers not only perform relevant science experiments but also see how people might get on under strange conditions for long periods of time.
So, if you're finding that living in social isolation works for you, you might be particularly well-suited for living in a Mars-like environment and this could be for you. But first, you have to qualify. NASA is looking for "highly motivated" Americans between the ages of 30-55, who must speak both Russian and English fluently and have a Master of Science, Doctor of Philosophy, Doctor of Medicine, or military officer training. Applicants with other related experience may also be considered. Those who are chosen to be a part of this group will be paid for their work.
1. What do we know about the new experiment?| A．It will find the best way for humans to live on Mars. |
| B．It is the first of its kind to be carried out since 1972. |
| C．It is prepared for NASA's human spaceflight program. |
| D．It will decide the people to be sent to the moon by NASA. |
| A．To explain why the facility has been chosen. |
| B．To compare the similarities among related missions. |
| C．To show Russia's achievement in space exploration. |
| D．To indicate the new experiment will have great success. |
| A．The process of the experiment. | B．The purposes of the experiment. |
| C．The popularity of the experiment. | D．The preparations for the experiment. |
| A．Artemis: NASA's new program | B．Love isolation? NASA wants you! |
| C．NASA's Mars exploration program | D．Want to have a trip to Mars? Come! |
7 . Earthquake rescue robots have experienced their final tests in Beijing. Their designers say with these robots, rescuers will be able to save lives during an earthquake. This robot looking like a helicopter, is called the detector-bot. It’s about 4 meters long, and it took about 4 years to develop the model. Its main functions (作用) are to collect information from the air, and send goods of up to 30 kilos, to people trapped by an earthquake.
This robot has a high definition 360 degree panoramic (全景) camera. It can work day and night and will also be able to send the latest pictures from the quake area.
Dr. Qi Juntong, Chinese Academy of Science, said, “The most important feature of this robot is that it doesn’t need a distant control. We just set the destination (目的地) information on it, and then it takes off, and lands by itself. It flies as high as 3,000 meters, and as fast as 100 kilometers per hour.”
This robot has a different function — it can change as the environment changes. Its main job is to search for any signs of life in places where human rescuers are unable to go.
As well as a detector (探测器) that finds victims and detects poisonous gas, a camera is placed in the 40 centimeter long robot, which can work in the dark.
Another use for the rescuers is the supply part, with its 10 meter long pipe. People who are trapped in the ruins, will be able to get supplies including oxygen and liquids.
Experts have said that the robots will enter production, and serve as part of the national earth-quake rescue team as soon as next year.
1. According to the passage, this robot________.| A．is carried by the helicopter | B．weighs about 30 kilos |
| C．is a machine with a length of 10 meters | D．hasn’t been put into production so far |
| A．a camera | B．a robot | C．a rescuer | D．a detector |
| A．It is designed to prevent the earthquake. | B．It is unable to send goods. |
| C．It can take and send pictures even in the dark. | D．It can be used to take in poisonous gas. |
| A．what the robot looks like | B．an introduction to the robot |
| C．how the robot is made | D．information about earthquakes |
8 . Immersive Van Gogh
From the creators of the blockbuster show in Paris seen by over two million visitors and still wowing crowds in Toronto, the west coast premiere (首场) of the Immersive Van Gogh Exhibit will bring the art of Vincent to life in Los Angeles.
Immersive art is not just a technical way to represent video and audio in huge spaces. The word immersive indicates a deep commitment of intentions which connect images and sounds in a way that the audience is able to experience a different way of the art.
True to its name, this exhibition transforms the iconic (偶像的) paintings of Vincent van Gogh into moving, wall-filling projections. “Immersive Van Gogh” promises half-a-million cubic feet of projections that pull from some of the post-impressionist’s most recognizable pieces, including The Bedroom, Sunflowers and, yes, The Starry Night.
You will experience art like never before—lose yourself in entrancing, moving images that highlight brushstrokes, detail, and color—truly illuminating (照亮) the mind of the genius.
LOCATION
The Immersive Van Gogh Exhibit is located at a secret place situated in the heart of Los Angeles. To be announced before the exhibit opens, existing ticket holders will receive an email with the place name and location once it is made public.
TICKET PRICES
| VIP TICKETS—$99.99 ●Priority access ●Van Gogh cushion (a gift for you) ●Limited edition poster | PREMIUM TICKETS—$59.99 ●Van Gogh cushion (rental) ●Limited edition poster |
| BASIC TICKETS—$54.99 ●Admission only | CHILD TICKETS—$29.99 ●Ages 6—16 (children 5 and under do not require a ticket) ●Admission only ●Child tickets are not subject to change of date fees |
Tickets are available online at www.vangoghla.com.
GIFT SHOP
Stop by our Exhibit Gift Shop to take the magic of Van Gogh home with you! From clothing and jewelry to home décor, children’s books, and so much more, you will find unique and thoughtful souvenirs at the Immersive Van Gogh Exhibit. Also be sure to check out at our online store!
Experience the organic landscapes of Van Gogh’s imagination, and journey through his brilliance and madness in a completely new and unforgettable way.
1. According to the passage, the Immersive Van Gogh Exhibit ________.| A．presents Van Gogh’s art in a modern way |
| B．begins a journey to Van Gogh’s hometown |
| C．displays Van Gogh’s paintings on moving walls |
| D．designs projects on Van Gogh’s learning experience |
| A．An email. | B．A website. |
| C．The ticket office. | D．The gift shop. |
| A．$109.98. | B．$154.98. |
| C．$159.98. | D．$199.98. |
9 . In a study published in Nature Machine Intelligence, researchers at Ohio State University show how artificial intelligence（AI）can follow clinical trials to identify drugs for repurposing, a solution that can help advance innovative treatments.
Repurposing drugs is legal and not unusual. When doctors prescribe(开处方)drugs that have been approved by the Food and Drug Administration(FDA)for purposes different from what is printed on the labels, the drugs are being used “off-label” Just because a drug is FDA-approved for a specific type of disease does not prevent it from having possible benefits for other purposes.
For example, Metformin, a drug that is FDA-approved for treating type 2 diabetes, is also used to treat PCOS(a disease of women), and other diseases. Trazodone, an anti-depressant with FDA-approval to treat depression, is also prescribed by doctors to help treat patients with sleep issues.
The Ohio State University research team created an AI deep learning model for predicting treatment probability with patient data including the treatment, outcomes, and potential confounders(干扰因素).
Confounders are related to the exposure and outcome. For example, a connection is identified between music festivals and increases in skin rashes(红疹). Music festivals do not directly cause skin rashes. In this case, one possible confounding factor between the two may be outdoor heat, as music festivals tend to run outdoors when the temperature is high, and heat is a known cause for rashes. When working with real-world data, confounders could number in the thousands. AI deep learning is well-suited to find patterns in the complexity of potentially thousands of confounders.
The researcher team used confounders including population data and co-prescribed drugs. With this proof-of-concept, now clinicians have a powerful AI tool to rapidly discover new treatments by repurposing existing medications.
1. What do we know about a drug used off-label?| A．It is sold without a label. |
| B．It is available at a low price. |
| C．Its uses extend beyond the original ones. |
| D．Its clinical trials are rejected by doctors. |
| A．are used off-label |
| B．treat rare diseases |
| C．result in sleep issues |
| D．are medical breakthroughs |
| A．They are possible treatments. |
| B．They are environmental factors. |
| C．They can be easily recognized in real-world data. |
| D．They should be taken into serious consideration. |
| A．AI examines benefits of existing drugs. |
| B．AI identifies off-label uses for drugs. |
| C．AI finds new drugs for common diseases. |
| D．AI proves the power of drug research. |
10 . As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.
That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.
But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.
One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.
“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”
Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.
1. Why do researchers and government agencies work on cooling the earth?| A．To prevent natural disasters. | B．To win more time to reduce gas emissions. |
| C．To imitate volcanic eruptions. | D．To encourage more people to bur fossil fuels. |
| A．More volcanoes will throw out. |
| B．More solar energy will go into space. |
| C．More disasters will endanger the future of the world. |
| D．People will keep burning fossil fuels to keep warm. |
| A．He thinks more research remains to be done. |
| B．He is optimistic about the effect of cooling the earth. |
| C．He is concerned about the reduction in agriculture production. |
| D．He disapproves of the practice of solar climate intervention. |
| A．The rainfall pattern of a region. |
| B．The modest drop in temperature. |
| C．The number of extreme weather events. |
| D．The injection amount of aerosol. |
