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题型:阅读理解 题类:模拟题 难易度:普通

河北省张家口市2020届高三英语第二学期第二次模拟考试试卷

阅读理解

    While jewelry made from gold can be beautiful, most people admit that wearing the heavy metal over long periods of time can get a little annoying. Now, researchers from Swiss university ETH Zurich have created a new form of lightweight gold that weighs five to ten times less than traditional 18-carat gold—which typically consists of 75 percent gold and 25 percent copper—but has the same purity.

    The researchers began by mixing gold with water, salt, protein fibers and other materials. They then replaced the water with alcohol and placed the mixture inside a high-pressure carbon dioxide (CO2) box. The reaction between the gas and alcohol transformed the golden plastic into a light material that can be heated to melt and made into whatever form was needed. "This gold has some characteristics of plastic,” says team leader Raffaele Mezzenga, professor of Food and Soft Materials at ETH Zurich.

    In addition to being lighter, the "plastic” gold has other advantages over traditional forms. It can be melted into shape at about 105 degrees Celsius, much lower than the 1,064 degrees Celsius required to melt pure 24-carat gold. The metal's firmness can be easily adjusted by changing the components at the beginning of the process. It is also much easier to vary the color. "As a general rule, our approach lets us create almost any kind of gold we choose, in line with the desired properties, says Mezzenga.

    The researchers, who published their study in the journal Advanced Functional Materials on January 10, 2020, believe the new lightweight gold will be able to replace the metallic version in most traditional applications, including jewelry and watches. However, given that most buyers associate high-quality gold with weight, that may take some time. But the material will undoubtedly be beneficial for use inside electronic devices, chemical catalysts (催化剂),and even radiation shielding.

(1)、Why do many people find the traditional gold annoying?
A、It costs too much。 B、Its purity is too low. C、It feels too heavy to wear long. D、Its beauty lasts a short time,
(2)、What is the second paragraph mainly about?
A、The functions of the "plastic" gold. B、The components of the "plastic” gold. C、The characteristics of the "plastic” gold. D、The production process of the "plastic" gold.
(3)、Which is the "plastic" gold's advantage over the traditional gold?
A、It is easier to process. B、It is more widely used. C、It has a lower temperature. D、It is more convenient to get.
(4)、Where is this text most likely from?
A、A diary. B、A guidebook. C、A novel. D、A magazine.
举一反三
阅读理解

    Eight days for just¥12,000

    Departs: May-October 2017

    Includes:

    Return flights from 6 China's airports to Naples

    Return airport to hotel transport

    Seven nights'accommodation at the 3-star Hotel Nice

    Breakfast

    The service of guides

    Government taxes

    Join us for a wonderful holiday in one of the Europe's most wonderful-Naples in Italy if you want to have a nice time in a beautiful small quiet place. The ancient Romans called the city “happy land” with attractive coastline, colorful towns, splendid views and the warm Mediterranean Sea. Your best choice for a truly memorable holiday!

    Choose between the peaceful traditional villages of Sant' Agata, set on a hillside six miles away from Sorrento, or the more lively and well-known international resort town of Sorrento, with wonderful views over the Bay of Naples.

    Breathtaking scenery, famous sights and European restaurants everywhere. From the mysterious Isle of Capri to the hunting ruins (废墟) of Pompeii, and from the unforgettable “Amalfi Drive” to the delightful resorts (景点) of Positano, Sorrento and Ravello, the area is a feast for the eyes! Join us, and you won't be disappointed!

    Price based on two tourists sharing a double room at the Hotel Nice. A single room, another¥2,000. A group of ten college students,¥10,000 for each.

    Like to know more? Telephone Newmarket Air Holidays Ltd on: 0845-226-7788 (All calls charged at local rates).

阅读理解

    When I was a boy there were no smart phones, and our television only got one channel clearly. Still, I never felt bored. The fields, hills and woodlands around my home were the perfect playground whose adventures were only limited by my imagination. I can remember once hiking to nearby lake and walking slowly around it. At the back of it I was amazed to find an old dirt road that I had never seen before. It was full of muddy tyre tracks and deep woods bordered it on both sides, but exploring it still seemed like a fine adventure.

    I walked on and on for what seemed like hours. I was sure my guardian angel was whispering in my ears “turn around and head back home”, but I was stubborn and walked on. There was still neither a car nor a house in sight. I noticed that the sun was starting to go and down I grew scared. I didn't want to end up trapped on this road, and I was worried that it would be dark before I could make my way back to the lake again.

    I continued to walk on with something growing inside of me. My heart was pounding and my legs were aching. I was almost in tears when I saw something in the distance. It was a house that I recognized. I jumped up and down and laughed out loud. It was still over a mile away, but my legs felt like feathers and I hurried back to my house in no time. I walked in with a big smile on my face just in time for dinner. Then I ended my adventure with a good night's sleep.

    I often thought of that experience recently. Actually, in our life, all roads, no matter how they twist and turn, can lead us home again. They can lead us to hey can lead us to our homes in our hearts. May you always walk your path with love! May you always help your fellow travelers along the way! And may your roads always lead you home again!

阅读理解

Research shows that isolation(隔绝,孤立)is bad for us and associated with certain diseases including depression, high blood pressure and heart disease. Yet teenagers seek isolation by using the device of our times—a screen, screens of all kinds. However, in whatever form, screens are addictive, and addictive from an early age. Research has shown that given the chance, six-month-old babies prefer screens to real human faces.

    Hand in hand with this addiction to screens, we are seeing an explosion of teenage mental health problems. Social media claims to be inclusive, keeping you connected. But it's not. It isolates you from real people. Screens have even been described as being poisonous for teenagers.

    Psychologist Jean Twenge, a professor at San Diego State University, believes today's teenagers are “on the edge” of a major mental health crisis and requestes, “do anything that doesn't involve a screen”. The problem is, she claims, children born between 1995 and 2012 have grown up with a smart phone in their hands, and it has “changed every aspect” of their lives. The number of teenagers who actually see their friends frequently has dropped by more than 40% since 2000. In 2015, only 56% of 17-year-old went on a date, down from 85%. Modern teenagers are slower to learn to drive, or earn money and spend more time at home. They're “on their phone, in their room, alone and often depressed”, she says.

    Some critics, however, say we should encourage our children to spend more time online. Robert Hannigan, former director of GCHQ, said in August that Britain is badly short of engineers and computer scientists, and urged children to develop cyber skill to compete in the digital economy.

    I' m not the first to say that social media is inferior to real human contact, and harms mental health. Studies show teens who spend three hours a day online are 35% more likely to suicide(自杀).

    The suicide rate among girls aged 12 to 14 has more than doubled in a decade.

阅读理解

    Researchers found that compared with young people who spent much of their free time in front of TV sets, those who were physically active often had higher self-respect, better grades and were less likely to have risky behavior like taking drugs, smoking, or drinking. The findings, based on a national survey of nearly 12, 000 middle and high school students, were published in a journal(期刊).

    “Across the board, children who engaged in any kind of activity were better off than kids who watched a lot of TV,” said study co-author(合著者) professor Penny Gordon Larsen of the University of North Carolina.

    Other studies have linked certain content of television programs, such as violence and sex, to children's behavior. But beyond this issue, Gordon Larsen said that kids who spend hours watching TV” miss opportunities” to develop skills, learn teamwork and have other experiences that their more active peers(同辈) benefit(受益) from

    That doesn't mean, however, that kids have to be on the football team. The study found that some activities like skating and skateboard(滑板)——which adults sometimes frown upon——were also related to better self-respect and less risk-taking.

    That skaters were better behaved than TV-watchers might come as a surprise to some adults who consider these teens to be bad, according to Gordon Larsen. Skateboarding is forbidden in many public areas, and some communities(社区) disagree to build skating parks. But if kids who like to skate have nowhere to do it, “ it's a shame,” said Gordon Larsen.

    Not only should parents encourage their kids to engage(参与) in the physical activities they enjoy, she said, but schools and communities should also do more to create opportunities for children to be active.

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