1 . This year, German environmentalists collected 1.75 million signatures for a “save the bees” law requiring an immediate change toward organic farming. But to create healthy ecosystems worldwide, people in communities across the globe will need to take similar action based on sympathy for insects — and not only for bees and butterflies. The environmentalists presented immediate, science-based actions to slow down the insect decline.
“It takes specific law to preserve the amazing variety of insects in the world and we need to stop the destroying of natural habitats, limit road building in parks and reserves and produce food without the use of pesticides,” said Basset, an entomologist, “Conserving insects is not the same as conserving big animals or rare frogs. You can’t keep millions of insects in a zoo.”
A recent article in Entomology Today suggests that successful programs to save insects have a clear and simple objective and a strategically chosen audience. By focusing on bees and butterflies and other beautiful, familiar insects, it is possible to enact the law to protect the habitat of lesser known, less attractive, but equally important species.
But there are still huge gaps in information about how different species of insects are doing, especially in the tropics. “It is next to useless to weigh insects collected in an area and say that insect communities are increasing or declining.” Basset said. “We need much more specific information. That is expensive and difficult because of the effort that it takes just to identify the species, especially in the tropics. What we are doing now is to group insects by their main function, and then to determine how each group is doing in a specific area of the world.”
1. What should people do to protect insects according to the text?| A．Stop building roads in parks and reserves. |
| B．Open up more natural habitats. |
| C．Avoid using pesticides for crops. |
| D．Keep them in a zoo. |
| A．They have set up laws. |
| B．They focus on specific species. |
| C．They conserve important species. |
| D．They protect the habitat of lesser known species. |
| A．Classifying the insects. |
| B．Identifying the species of insects. |
| C．Doing research on insects’ function. |
| D．Weighing insects collected in an area. |
| A．Helping Insects Is Helping Ourselves! |
| B．Take Action! Insects Need Protection! |
| C．Save the Bees — They Need Your Help! |
| D．Insect Decline: Where Have All the Insects Gone? |
2 . Elephants on the coast of Thailand are acting strangely. They stamp their feet and signal toward the hills. The sea draws back from the beaches. Fish fall heavily in the mud. Suddenly, a huge wave appears. This is no ordinary wave. It is a tsunami (海啸)!
Tsunami waves are larger and faster than normal surface waves. A tsunami wave can travel as fast as a jet plane and can be as tall as a ten-story building. Imagine dropping a stone into a pond. The water on the surface ripples (起涟漪). A tsunami is like a very powerful ripple. Tsunamis begin when the ocean rises or falls very suddenly. Large amounts of seawater are displaced. This movement causes huge waves.
If a tsunami happens, there must be some kind of force that causes the ocean water to become displaced. Most tsunamis are caused by underwater earthquakes. However, volcanoes, landslides (塌方), large icebergs, and even meteorites (陨石) are able to cause one of these giant waves.
Tsunamis are extremely powerful. Ordinary waves lose power when they break. Tsunami waves can remain powerful for several days. Because tsunami waves are so strong, they can kill people, damage property, and completely ruin an ecosystem in just one hour.
Scientists have no way of predicting when a tsunami will hit. However, if a powerful enough earthquake happens, scientists can send out a warning or a watch. A warning means that a tsunami will very likely hit soon. A watch means that conditions are favorable for a tsunami. When people are informed of a watch or a warning, they have more time to prepare. It is best not to get caught unaware when a tsunami is on the way!
1. Why are elephants acting strangely before the Tsunamis?| A．They dislike the huge wave. |
| B．They are afraid of the big fish. |
| C．They can sense something out of the ordinary. |
| D．They see the ocean drawing back from the beaches. |
| A．Moved out of normal place. | B．Pushed by human force. |
| C．Pulled to great heights. | D．Hung down quickly. |
| A．They are not familiar to most people. |
| B．They are very powerful and long-lasting. |
| C．They break on the coast, unlike normal waves. |
| D．They are caused by underwater earthquakes. |
| A．How to guard against tsunamis. | B．Differences between wave types. |
| C．What to do with tsunami waves. | D．Causes and effects of tsunamis. |
3 . “You’ll get square eyes!” my mother used to say as I sat for hour after hour glued to the TV. I ignored her, of course. Past-forward a few decades and now I’m the parent. My 5-year-old lives in a world where screens aren’t fixed pieces of furniture. You can’t even avoid them by going outside. Screens are not only in our pockets; they’re everywhere.
The concerns have grown with the screens. In the past decade, we have heard that they will damage our mental health. Many of us feel more distracted by them, feeling guiltier and more tired as a result.
The apps and websites we can access on our phones have also sparked widespread concern. Big tech companies are also good at making use of our need for social recognition, hooking us on likes, retweets and follower counts. Social media has created a culture of mass narcissism (自恋), which has led many to worry about the emotional stresses on teenagers. A quick online search brings up dozens of papers linking screen use or social media with harmful effects on mental health, including depression and suicide.
Such statements are alarming. They are also widely believed, thanks to popular books like iGen by Jean Twenge, which claims that digital technology has ruined a generation. Yet, Amy Orben at the University of Oxford, who studies the impact of digital technology and social media in particular on mental health, holds different views. She claims that the underlying data can be used to tell different stories. She also spotted shortcomings in several large studies that claimed to show correlations (相关性) between the use of devices with screens and depression in users.
Twenge stands by her own finding, pointing in turn to what she considers flaws in Orben’s research methods. For David Max, at Royal College of Child Health in London, the effect of screen time and social media use on mental health remains speculative. “We cannot regard social media overall as good or bad,” says Davie. “We don’t know whether in individual cases social media is not responsible,” he says.
The explosion of mobile phone use has revolutionized our lives. I can download movies, write articles, communicate with my family and broadcast to the world all at the push of a button. Rather than impose constraints (限制), we should take a look at our use of screens and ask how they fit with the activities and lifestyle.
Every new technology with widespread impact has given rise to new fears. So the best bet may simply be to ask yourself what level of screen use makes you and those around you happy and try to stick to it. If you find yourself over addictive, don’t panic—and certainly don’t feel guilty. Nobody knows anything worth getting scared about.
1. According to the passage, people give likes, retweet or count followers to __________.| A．share one’s lifestyles | B．show respect for others |
| C．seek social recognition | D．relieve emotional stresses |
| A．doubtful | B．specific |
| C．important | D．abstract |
| A．Teenagers are more affected by screen use both physically and mentally. |
| B．Orben claims it is far too early to blame screen use for ruining a generation. |
| C．Big tech companies help to produce many research papers on mental health. |
| D．Twenge mainly introduces the overall benefits of digital technology in her books. |
| A．encourage readers to reduce the time of screen use |
| B．share different opinions on the effects of screen use |
| C．explain why screen use may have negative effects on people |
| D．relieve people’s concerns and worries about the use of screens |
4 . When students got their textbooks at the beginning of the year at San Mateo High School, they also received the Yondr pouch Youdr (口袋), a locking device for their phones. The phone slides into it and gets locked through a magnetic (磁力的) device. It’s not unlocked again until the final bell rings. The procedure will repeat every day for the rest of the school year.
Adam Gelb, the vice-president, ran a pilot project last year with 20 students and decided to do a school-wide, bell to bell program for this school year. The Yondr pouch is a start-up in San Francisco with a mission to create phone-free spaces, something that is the very thought with Gelb.
“I really think it’s about being present and engaging in the adult that’s trying to teach you, and your peers that might be in your small group. That’s part of the main philosophy that we're trying to spread,” he said.
Brad Friedman, another teacher at the school, said he was becoming concerned with overuse of phones at school. He said he often saw students completely lost on their phones, some not socializing at all with other students.
This week, he’s already seeing the difference. “Everyone else was socializing and eating lunch together. That’s what I wasn’t seeing enough of when phone usage is at its worst,” he said.
A senior at San Mateo High School Djelani Phillips-Diop said he definitely panicked at first when he heard he had to lock his phone. “I panicked, I guess. Last year when we had phones, I was using it every day,” he said.
In case of emergency, every classroom has the unlocking device. Teachers still have access to their own cellphones and desk phones. “We’ve gotten all 1,700 students unlocked with a matter of minutes,” said Gelb.
We spoke to four students who, despite their initial panic, agreed that a phone-free school experience has its benefits.
1. What can we learn about the Yondr pouch from paragraph 1?| A．It is a device to lock phones. | B．It is a bell to unlock phones. |
| C．It is a device to be used for a year. | D．It is a phone intended for students. |
| A．create space to use phones freely |
| B．help the students to be more outgoing |
| C．encourage more mutual communication among students |
| D．help the students to realize the harm of overuse of phones |
| A．Concerned. | B．Favorable. |
| C．Disapproving. | D．Doubtful. |
| A．The students were willing to have their phones locked at first. |
| B．The phone will get unlocked automatically when there is an emergency |
| C．Students prefer eating lunch together with their phones in hand. |
| D．Some students came to realize the benefits of the phone-free program. |
5 . AIDS may be one of the most undesirable diseases in the world. Luckily, there is now hope for AIDS patients.
According to a recent paper published in the New England Journal of Medicine，Chinese scientists have successfully used CRISPR technology -a method of gene editing-to treat a patient with HIV. While it may not have cured the patient fully, it still represents a huge step forward in fighting the disease.
The patient was a 27-year-old Chinese man who was diagnosed with both AIDS and acute lymphoblastic leukemia (淋巴母细胞白血病), a type of blood cancer. Despite his bleak situation, doctors offered him a little hope: a bone marrow (骨髓) transplant to treat his cancer and an experimental treatment for his HIV. They used this chance to edit the DNA in bone marrow stem cells (干细胞) from a donor before transplanting the cells into the patient.
Specifically, the treatment involved using the gene-editing tool CRISPR-Cas9 to delete a gene known as CCR5, which encodes (给…编码) a protein that HIV uses to get inside human cells. Without the gene, HIV is unable to enter cells. Talking about the gene, lead scientist Deng Hongkui told CNN, “After being edited, the cells and the blood cells they produce have the ability to resist HIV infection.” Nineteen months after the treatment, the patients leukemia was in complete remission( 缓 解 ) and donor cells without CCR5 remained, according to the research paper.
Though the transplant didn't cure the man’s HIV, it still showed the effectiveness of gene-editing technology, as there was no indication of any unintended genetic changes-a major concern with past gene-editing treatment experiments. Amesh Adalja, a senior scholar at the Johns Hopkins Center for Health Security in the United States, who was not involved in the study, praised the treatment. “They did a very creative experiment, and it was safe,” he told Live Science. “It should be viewed as a success.”
Deng believes gene-editing technology could “bring a new dawn” to blood related diseases such as AIDS and sickle-cell anaemia ( 镰 状 细 胞 贫 血 ). “Thanks to this new technology, the goal of a functional cure for AIDS is getting closer and closer,” he said.
1. The underlined word “bleak” in Paragraph3 probably means “______”.| A．hopeless |
| B．unstable |
| C．embarrassing |
| D．unique |
| A．By identifying and killing HIV. |
| B．By changing the structure of HIV. |
| C．By preventing HIV entering cells. |
| D．By removing a protein HIV feeds on. |
| A．Gene-edited cells are able to resist HIV infection. |
| B．The number of cells infected by HIV has decreased. |
| C．CCR5 and other genes in the patient's cells are changed. |
| D．Unintended genetic changes have taken place in the patient's cells. |
| A．It pointed out the problems of gene treatment. |
| B．It provided a new way to cure AIDS patients fully. |
| C．It could offer a safe treatment for blood-related diseases. |
| D．It was the first example to use gene-editing tool to treat AIDS. |
6 . Nobel prize-winners, legendary (传奇的) authors, and famous scientists — you might think all these people were born to be creative. However, that's not always the case.
While well-known figures like Pablo Picasso and Albert Einstein did their most significant (重要的) work in their youth, famous American poet Robert Frost and English-born natural scientist Charles Darwin were known as "late bloomers" – people whose talents were not noticeable until later in life.
This idea of "peaking" at different times inspired new research from the United States. "Many people believe that creativity is exclusively (独有地) associated (有联系的) with youth, but it really depends on what kind of creativity you're talking about," said Bruce Weinburg, a professor of economics at the University of Chicago and co-author of the study.
According to the study, published earlier this month in the journal De Economist, there are two types of people: conceptual (概念的) and experimental thinkers.
To reach this conclusion, researchers took the 31 previous winners of the Nobel Prize in economics and arranged them according to when they did their most significant work, to identify (识别) their creative peaks.
Some peaked from ages 25-29. Classified as conceptual thinkers, these people think outside of the box, coming up with new ideas before they become used to the conventional way of doing things.
The second creative peak came with economists in their 50s. These are experimental thinkers who have been in their field for a long time. This allows them to learn from errors and experiment with different processes, before eventually finding new solutions.
"Whether you hit your creative peak early or late in your career depends on whether you have a conceptual or experimental approach," said Weinburg. He added that their study isn't limited to economics, saying it can apply to other creative disciplines (知识领域). So if you're struggling to come up with new ideas, don't panic. Your creative peak may be yet to arrive.
1. What did the study from the US find?| A．Young people are not necessary more creative than the old people. |
| B．Most people take a conceptual approach when thinking. |
| C．One's creative peak is related to their job type. |
| D．Conceptual and experimental thinkers hit their peaks at different times. |
| A．Easy. | B．Unusual. |
| C．Traditional. | D．Appropriate. |
| A．Their talents usually bloom in their 20s. |
| B．They are good at doing experiments. |
| C．They work out new methods based on experience. |
| D．They are more successful than conceptual thinkers. |
| A．It's difficult to find one's talent in later years. |
| B．More research needs to be done about creative peaks. |
| C．Conceptual thinkers could be more successful in the art field. |
| D．Experimental thinkers from other fields may be most successful in their 50s. |
7 . Last year my children gifted me a stainless steel (不锈钢的) coffee plunger (法式按压咖啡壶). I love to start the day with a strong black coffee and couldn't wait to use it. I looked forward to the following morning's coffee making, knowing that I probably wouldn't smash (打碎) this plunger as easily as I had done so often in the past.
But as I poured my first cup of coffee, the plunger spilled (洒出) all over the table. Thankfully no one was around to see my disappointed face! I kept trying, but each morning would see me wiping up the coffee. Then I realized that if I poured very slowly there would be no spilling.
This was at first a very painful experience. My normal practice was to rush through breakfast so that I could get on with my day.
But in time I learned not only to pour slowly but to enjoy the experience: the smell, the taste, and the stillness of a new day.
It prompted (促使) me to reflect upon whether there were other areas of my life I was rushing through. Most of life, it seemed.
I started to leave extra time to do even the most ordinary tasks. When shop owners would apologize for keeping me waiting, I'd say, "Not a problem, I'm not in a hurry." Even hanging out washing became pleasurable when a couple of extra minutes of standing still and listening to the birds singing in the trees around me became part of my routine.
Besides, one of my favorite experiences living in the inner city for many years was sitting on the front doorstep of our home spending time with strangers. We sat on the steps, each of us with a cup of coffee in our hands, listening to each other's stories. It was one of the warmest things about living in a busy city. It was as if the world around us slowed to a pace (步伐) we could both handle.
Stillness and quietness not only slow the pace of life, but also feed the soul, helping us to enjoy the world's small pleasures.
1. What was the author’s life like before receiving the coffee plunger?| A．Hurried. | B．Relaxing. |
| C．Simple. | D．Disappointing. |
| A．Dealing with the spilled coffee. | B．Learning to use the new coffee plunger. |
| C．Trying to pour coffee more slowly. | D．Rushing through breakfast. |
| A．She had more time for important things. |
| B．She found joy in ordinary tasks. |
| C．She made friends with many shop owners. |
| D．She had a better relationship with her family members. |
| A．To tell people how to live a meaningful and full life. |
| B．To reflect on the meaning of living a slow-paced life. |
| C．To show the importance of the gift from her daughter. |
| D．To encourage readers to communicate more with strangers. |
8 . Do you often feel like you want to wash your hands again and again? Or do you ever have the urge to line up the items on your desk? These all may be symptoms of obsessive-compulsive disorder (强迫症), or OCD, which affects about 2 percent of the world's population.
Those who suffer from OCD have difficulty finding successful treatment because doctors don't clearly understand its causes. But now, a new study has given hope for a future cure.
For the study, which was published in the journal Nature in October, researchers observed humans, dogs and mice. They discovered four genes that may be responsible for obsessive-compulsive behaviors in humans.
But why observe dogs and mice to learn about humans?
"Dogs, it turns out, are surprisingly similar to people," study author and geneticist Elinor Karlsson, of the Broad Institute of MIT and Harvard University, US, told NPR. "They're chasing their own tail or chasing shadows like normal, but they're doing it for hours."
In the study, researchers made a list of about 600 genes in mice, dogs and humans that they thought might cause OCD, reported NPR. They then compared those genes in two large groups of people – those who don't have OCD and those who do. In the end, they identified just four genes with mutations (突变) in the OCD group. The genes are active in a neurological pathway (神经通路) in the brain, which is believed to help control actions. But the mutations could block the neurological pathway.
For example, for people without OCD, when they finish washing their hands, a signal will come, telling them to stop. But for people with OCD, the neurological pathway is blocked, so the message isn't getting through. As a result, the person will continue to wash their hands.
"OCD and anxiety are kind of like learning disorders," Marcos Grados, an OCD researcher at Johns Hopkins University School of Medicine, told NPR. "Often with OCD, people have a fear of germs (细菌). You can't touch tables or door knobs (把手) and every time it's the same sensation (感觉). You didn't learn that the last time you touched a door knob, nothing happened. It's like touching it for the first time ever."
However, that doesn't mean people who have these genetic mutations will always have obsessive-compulsive behaviors, the researchers said. That's because the disorder also relies on other things, such as one's environment.
According to reports, various existing treatment methods have low success rates in patients. But now that we know where OCD comes from, let's hope we will soon find an effective way to treat it.
1. What did researchers recently find about OCD?| A．They found a possible cure for it. | B．It is a common problem among animals. |
| C．It can be caused by genetic mutations. | D．It can be passed on to the next generation. |
| A．Enjoy shaking hands with others. | B．Touch door knobs from time to time. |
| C．Keep washing their hands. | D．Enjoy the company of friends. |
| A．They have four missing genes that control their behavior. |
| B．Some part of their neurological pathway is damaged. |
| C．Their brains are not sensitive to behavioral signals. |
| D．Their brains can't receive messages to stop repeated actions. |
| A．OCD causes more trouble than anxiety. |
| B．A genetic mutation is the main cause of OCD. |
| C．Environment plays a more important role in OCD than genes. |
| D．It's possible to find effective treatment for OCD. |
9 . “Birds” and “airports” are two words that, paired together，don’t normally paint the most harmonious picture. So it really raises some eyebrows when China announces plans to build an airport that is for birds.
Described as the world’s first-ever bird airport, the proposed Lingang Bird Sanctuary(保护区）in the northern coastal city of Tianjin is, of course,not an actual airport. Rather，it's a wetland preserve specifically designed to accommodate hundreds-even thousands-of daily takeoffs and landings by birds traveling along the East Asian-Australian Flyway. Over 50 species of migratory (迁徙的）water birds，some endangered, will stop and feed at the protected sanctuary before continuing their long journey along the flyway.
Located on a former landfill site，the 150-acre airport is also open to human travelers.(Half a million visitors are expected annually.) However，instead of duty-free shopping，the main attraction for non-egg-laying creatures at Tianjin’s newest airport will be a green-roofed education and research center, a series of raised “observation platforms” and a network of scenic walking and cycling paths totaling over 4 miles.
“The proposed Bird Airport will be a globally significant sanctuary for endangered migratory bird species, while providing new green lungs for the city of Tianjin.” Adrian McGregor of an Australian landscape architecture firm explained of the design. Frequently blanketed in smog so thick that it has shut down real airports, Tianjin is a city---China’s fourth most populous----that would certainly benefit from a new pair of healthy green lungs•
1. The underlined phrase “non-egg-laying creatures” in Paragraph 3 refers to?| A．Visitors. | B．Designers. |
| C．Endangered water birds. | D．Planes. |
| A．People cannot watch birds up close here. |
| B．It is located on a 150-acre landfill site. |
| C．It functions as an actual airport and a wetland preserve. |
| D．It provides migratory birds with food and shelter. |
| A．The airport will become a permanent home for birds. |
| B．Tianjin will win worldwide fame in the future. |
| C．Tianjin’s air quality will improve thanks to the airport. |
| D．Tianjin will be able to accommodate more people. |
| A．Airports shut down and open up. |
| B．China is to open the first Bird Airport. |
| C．Airports turn into green lungs. |
| D．Birds are no longer enemies to airports. |
10 . Raised in a motherless home，my father was extremely tightfisted towards us children. His attitude didn’t soften as I grew into adulthood and went to college. I had to ride the bus whenever I came home. Though the bus stopped about two miles from home，Dad never met me，even in severe weather. If I grumbled，he’d say in his loudest father-voice，“That’s what your legs are for！”
The walk didn’t bother me as much as the fear of walking alone along the highway and country roads. I also felt less than valued that my father didn’t seem concerned about my safety. But that feeling was canceled one spring evening.
It had been a particularly difficult week at college after long hours in labs. I longed for home. When the bus reached the stop，I stepped off and dragged my suitcase to begin the long journey home.
A row of hedge(树篱)edged the driveway that climbed the hill to our house. Once I had turned off the highway to start the last lap of my journey，I always had a sense of relief to see the hedge because it meant that I was almost home. On that particular evening，the hedge had just come into view when I saw something gray moving along the top of the hedge，moving toward the house. Upon closer observation，I realized it was the top of my father’s head. Then I knew，each time I’d come home，he had stood behind the hedge，watching，until he knew I had arrived safely. I swallowed hard against the tears. He did care，after all.
On later visits，that spot of gray became my watchtower. I could hardly wait until I was close enough to watch for its secret movement above the greenery. Upon reaching home，I would find my father sitting innocently in his chair.“ So！My son，it’s you！”he’d say，his face lengthening into pretended surprise.
I replied，“Yes，Dad，it’s me.I’m home.”
1. What does the underlined word“grumbled” in Paragraph 1 probably mean?| A．Agreed willingly. | B．Explained clearly. |
| C．Spoke unhappily. | D．Accepted happily. |
| A．the tiredness after long hours in labs |
| B．the feeling of being less than valued |
| C．the fear of seeing something moving |
| D．the loneliness of riding the bus home |
| A．he was concerned about his son’s safety |
| B．he wanted to help his son build up courage |
| C．he didn’t want to meet his son at the doorway |
| D．he didn’t think his son was old enough to walk alone |
| A．Riding Bus Alone. | B．My College Life. |
| C．Terrible Journey Home. | D．My Father’s Secret. |
