1 . “Katy, please come to the front desk. You have a
As I
“You called me?” I said, somewhat
Sabrina looked up. “Oh yeah, the doorman brought this up and told me to give it to you.” As she
“What is it?” Sabrina asked.
Once glance inside, my doubt was confirmed.
“Someone has tagged me.” I
I had to
As I sat eating this amazingly delicious food, a
| A．call | B．visitor | C．bill | D．package |
| A．telephoned | B．approached | C．left | D．checked |
| A．important | B．ordinary | C．unusual | D．impossible |
| A．focused on | B．tired of | C．satisfied with | D．used to |
| A．excitedly | B．curiously | C．hurriedly | D．doubtfully |
| A．stressed | B．addicted | C．confused | D．thrilled |
| A．emptied | B．filled | C．pushed | D．pulled |
| A．opening | B．passing | C．throwing | D．dropping |
| A．Lying | B．Laying | C．Hiding | D．Loading |
| A．styles | B．shapes | C．contents | D．patterns |
| A．replied | B．requested | C．sighed | D．shouted |
| A．reached | B．put | C．took | D．got |
| A．photo | B．envelope | C．card | D．drawing |
| A．big | B．flat | C．wide | D．round |
| A．swallow | B．count | C．try | D．pray |
| A．hurting | B．beating | C．moving | D．breaking |
| A．sweat | B．rain | C．warmth | D．pain |
| A．strange | B．painful | C．strong | D．different |
| A．confusion | B．peace | C．magic | D．gratitude |
| A．went through | B．looked through | C．lived with | D．dealt with |
2 . Microplastics are tiny bits or threads of plastic, often too small to be seen. In recent years, microplastics have been found almost everywhere, from the North pole to Antarctica, from the top of Mount Qomolangma to the deepest point in the sea.
In a recent study led by a group called Ocean Wise, researchers made four trips across the Arctic Ocean. They took 71 samples from between 10 and 26 feet below the ocean’s surface, and 26 more samples from more than 0.6 miles below. They found microplastics in all but one, with an average of about 40 microplastic particles in every cubic meter. To identify the particles they found, the scientists used a tool based on infrared (红外的) light. Over 92% of the microplastics found were small threads, called microfibers. About 73% of these fibers were made of a plastic known as polyester(聚酯), which exactly matched polyester used in clothing.
The study also found far more microfibers near the Atlantic side of the Arctic Ocean than near the Pacific side. The fibers on the Atlantic side were also newer. The team believes this suggests that the fibers come from Europe and North America. Peter Ross, who led the research, said, “With these polyester fibers, we’ve created a cloud throughout the world’s oceans.”
Most samples were taken from an ocean layer where lots of sea life finds food. The scientists believe this means that many kinds of sea life, from the smallest to the largest, are likely to be affected by the pollution.
So how do these microfibers get into the sea? They break off when clothes are washed and emptied by washing machines into underground pipes. One recent study suggested that laundry from the US and Canada carries around 7,716,000 pounds of plastic microfibers into the sea every year.
1. Which is true about the study according to paragraph 2?| A．All the samples taken contained microplastics. |
| B．Polyester accounted for most of the microfibers. |
| C．The head of the research group is called Ocean Wise. |
| D．Most samples were collected from over 0.6 miles below. |
| A．These polyester fibers look like clouds. |
| B．The world’s oceans are linked together. |
| C．The pollution has reached a serious level. |
| D．The food chain of the sea has been damaged. |
| A．Plastics. | B．Ocean layers. |
| C．Washing machines. | D．Laundry. |
| A．Efforts Made to Protect the Arctic Ocean |
| B．Reduction in the Consumption of Plastic Products |
| C．Microplastics Found All Through the Arctic Ocean |
| D．Reasons Behind the Pollution of the Arctic Ocean |
3 . An American company says it has developed the world's first true jetpack（喷气机） for personal flight. It looks simple enough that almost anyone could use it to fly around.
The flying machine is built like a backpack. It looks similar to the bags people use to carry anything from food to books on their back. The device is powered by two jet engines. The engines can operate on either airplane fuel or automobile fuel. It can fly for periods up to 10 minutes. It can reach 100 kilometers per hour and fly up to 3,000 meters in the air.
The company says its personal flight vehicle has performed more than 400 test flights with no major problems. It says the jetpacks are still being developed and improved. The company recently launched a crowdfunding(众筹) campaign online - with a $1 million goal - to raise money for more research and testing.
JetPack Aviation's chief executive officer, David Mayman, says, “In the past, he adds, sensors used in the equipment could cost up to $100,000. Now it costs less than one dollar.” Lower costs and improvements in turbine(涡轮机)technology have made it possible for the company to develop several other devices besides it.
Another version of the jetpack, the JB-11, will be even more powerful. Mayman predicts this model will be used by first responders or the military during search and rescue operations.
The public demonstration of the JB-10 clearly showed the jetpack giving its passenger a smooth takeoff and landing. The equipment also appeared easy to operate and the device provided a stable test flight.
But the chance to own this flyer comes at a very high price. The JB-10 device is currently listed at $250,000.
1. The company collected money to.| A．produce the devices in mass | B．purchase new equipment to produce it |
| C．give some devices to charity | D．develop the device further |
| A．New Device Makes Personal Flying A Reality |
| B．Personal Jetpack Has Been Invented |
| C．Man Can Fly in the Sky |
| D．A New Invention for the Future |
| A．It is difficult to operate. | B．It can fly at a great height. |
| C．It has been made in mass. | D．It costs a lot because of the sensors. |
| A．On a physics textbook. | B．On a popular science magazine. |
| C．On a journal about fashion. | D．On a newspaper about scientists. |
4 . Addiction to smartphones will result in poor sleep, according to a new study.
The study, published Tuesday in Frontiers in Psychiatry, looked at smartphone use among 1,043 students between the ages of 18 and 30 at King's College London. Researchers asked the students to complete two questionnaires on their sleep quality and smartphone use, in person and online.
Using a 10-question scale that was developed to judge smartphone addiction in children, nearly 40% of the university students qualified as "addicted" to smartphones, the study found. “Our findings are in agreement with other reported studies in young adult populations globally, which are in the range of 30-45%,” lead author Sei Yon Sohn and her co-authors wrote in the study. "Later time of use was also significantly connected with smartphone addiction, with use after 1 a.m. increasing a 3- times risk," the authors wrote.
Students who reported high use of smartphones also reported poor sleep quality, the study found. That foils in line with previous studies that have found overuse of smartphones at night to be associated with trouble falling asleep, reduced sleep duration (睡眠持续时间)and daytime tiredness. That's likely because use of smartphones close to bedtime has been shown to delay the body's normal sleep - and - wake clock.
In fact, the No. 1 rule is "no computers, cell phones, and ipads in bed and at least one hour before bed Dr. Vsevolod Polotsky, who directs sleep basic research, said in a recent interview. That's because "any LED light source from electronics (电子设备)may further hold back melatonin (褪黑激素)levels," Polotsky said. Melatonin is often referred to as a "sleep hormone," because we sleep better during the night when levels reach the top.
“This is a cross-sectional study, and it cannot lead to any firm conclusions about smartphone use as the cause of reduced sleep quality, said Bob Patton, a lecturer in clinical psychology at the University of Surrey, via email.
1. How did Sei Yon Sohn's team begin their study?| A．By publishing researching papers. | B．By responding to others’ concern. |
| C．By collecting firsthand data. | D．By turning to related experts. |
| A．30-45% of the university students are addicted to smartphones. |
| B．High use of smartphones is related to poor sleep quality. |
| C．Overuse of smartphones leads to shorter sleep duration. |
| D．Use after 1 a.m. will result in smartphone addiction. |
| A．We should stop using them an hour before going to sleep. |
| B．LED light source from them will delay normal sleep- and- wake clock. |
| C．Reduced sleep quality has nothing to do with them. |
| D．No electronics should be used in bed at any time. |
| A．Say No to Smartphones |
| B．Sleep Quality Can Be Improved |
| C．LED Light Source Causes Great Harm |
| D．Smartphone Addiction Ruins Sleep |
5 . I had been living quite busily: studying the organ at the University of Arizona, conducting a speech clinic in town, and teaching a class in musical appreciation at the Desert Willow Ranch, where I was staying. I was going to parties, dances, horseback rides under the stars. One morning I suddenly fell down. My heart! "You will have to lie in bed for a year of complete rest," the doctor said. He didn't encourage me to believe I would ever be strong again.
In bed for a year! To be honest—perhaps to die! I was terror-stricken! Why did all this have to happen to me? What had I done to deserve it? I swept. I was bitter. But I did go to bed as the doctor advised. A neighbor of mine, Mr. Rudolf, an artist, said to me: "You think now that spending a year in bed will be a tragedy. But it won't be. You will have time to think and get acquainted with yourself. You will make more spiritual growth in these next few months than you have made during all your previous life."
I became calmer, and tried to develop a new sense of values. I read books of inspiration. One day I heard a radio commentator say: "You can express only what is in your own consciousness." I had heard the words like these many times before, but now they reached down inside me and took root. I determined to think only the thoughts I wanted to live by: thoughts of joy, happiness, health. I forced myself each morning, as soon as l awoke, to go over all the things I had to be grateful for. No pain. A lovely young daughter. My eyesight. My hearing. Lovely music on the radio. Time to read. Good food. Good friends. I was so cheerful and had so many visitors that the doctor put up a sign saying that only one visitor at a time would be allowed in my cabin—and only at certain hours.
Nine years have passed since then, and 1 now lead a full, active life. I am deeply grateful now for that year I spent in bed. It was the most valuable and the happiest year I spent in Arizona. The habit I formed then of counting my blessings each morning still remains with me. It is one of my most precious possessions.
1. Why did the writer have to lie in bed for a year?| A．Because she was terror-stricken at that time. |
| B．Because she had a serious heart-attack. |
| C．Because she was worn out for her busy life. |
| D．Because the doctor wanted her to do so. |
| A．was very grateful to the doctor |
| B．was shocked at the diagnosis |
| C．turned to a neighbor-Mr. Rudolf for help |
| D．thought of her bitter experiences in the past |
| A．she led a very comfortable life that year |
| B．she became used to lying in bed |
| C．she perfectly recovered from her illness |
| D．she came to know how to lead an active life |
| A．To share her understanding of life from an unforgettable experience. |
| B．To introduce herself to us because she was wise and kind. |
| C．To explain that lying in bed for a long time is not a terrible thing. |
| D．To encourage us to achieve as much as we can. |
