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题型:阅读理解 题类:常考题 难易度:普通

山东省青岛胶州市2020-2021学年高一下学期英语期中考试试卷(含听力音频)

阅读理解

Your best friend that follows you around when the sun comes out - your shadow - doesn't serve an important function like your heart or brain, but what if you could use shadows to create electricity? When using solar panels (电池板) that are powered by light, shadows can be boring because it means electricity can't be created. However, researchers from the National University of Singapore have engineered a way to create power from the shadows present everywhere.

A team of the university created a machine that can collect energy from shadows. It is created by placing a thin coating of gold onto silicon (硅). Like in a normal solar panel, when put in light, the silicon electrons (电子) become energized and the energized electrons then jump from the silicon to the gold. The voltage (电压) of the part of the machine that is placed in the light increases relative to the dark part and the electrons in the machine flow from high to low voltage. They are sent through an external circuit (外电路) creating a current that can be used to power another machine. The greater the contrast between light and dark, more energy is provided by the machine.

The team is working on improving the performance of the machine, borrowing approaches from solar panels to gather light. Increasing the amount of light the machines can receive allows them to better make use of shadows, as well as developing shadow energy collecting panels that can successfully gather from indoor lighting. The team is also researching the use of other materials other than gold to drop the price of the machine, meaning they would be more cost effective and easier to apply in society.

Shadows are present everywhere and perhaps one day in the future we will be able to collect energy from them by placing the shadow-effect energy machine around the world in places that have been considered unfit for solar panels to work, or indoors. "A lot of people think that shadows are useless," Tan says, but "anything can be useful, even shadows."

(1)、What is Paragraph 1 mainly about?
A、Your best friend always stays with you after the sunrise. B、The shadow has the same function as the heart and brain. C、Shadows can stop solar panels from creating electricity. D、Researchers have found a way to create power from shadows.
(2)、What is the key working principle of the machine mentioned in the text?
A、The silicon produces electricity when it is in the light. B、The gold produces power with the help of the silicon. C、The energized electrons flow from high to low voltage. D、An external circuit creates current using another machine.
(3)、How does the team improve the performance of the machine?
A、Using solar panels in the machine. B、Increasing the amount of light received. C、Developing light energy collecting panels. D、Bringing down the price of gold.
(4)、Which of the following is the best place to apply the machine?
A、A gym. B、A park. C、A farm. D、A playground.
举一反三
根据短文理解,选择正确答案。

    Do you want a bit of an adventure? Would you like to discover all the corners of the UK, or travel abroad? Maybe you have never tried the motorhome lifestyle before. Well, read this article and you will know why a motorhome is a good choice.

    Nothing is better than a motorhome. It has so many uses that it is considered the most versatile vehicle and it is also very comfortable. If you are thinking about hiring a motorhome this summer, then the best choice is to book it early, especially if you are considering the school holidays. The motorhome hire service is very seasonal and motorhome hire companies will never have extra vehicles available in the summer months.

    There are a lot of companies throughout the UK, and some of the big ones have motorhomes spread all over the country. At present, the largest network for motorhome hire is provided by Motorhome which is based in Cambridge. If you are in the UK, you may phone 0800612-8719 for details of its motorhome hire information. Motorhome has a network of over 500 vehicles all over England, Scotland and Wales.

    Most people wishing to hire a motorhome are families that are looking for an alternative to a European package holiday, especially as flying now has become more expensive, and is considered to be environmentally unfriendly. There is no doubt that the idea of no-fly holidays is going to become more popular as fewer people think it is safe to fly. This explains why more and more people are choosing to hire a motorhome for their holidays.

阅读理解

    You may think, salt is just a simple cooking element we shake on our food for a little extra taste. But salt is much more than that. Without salt our muscles would not move. Our nervous systems would not operate. Our hearts would not beat.

    But do not think rubbing salt into a wound will help. Doing that would be painful and not heal the wound. “To rub salt into a wound” is an idiom that means to purposefully make a bad situation worse.

    Early humans got the salt they needed to stay alive from the animals they killed. But advances in agriculture led to a diet low in salt. So, humans needed to find other sources. Those who lived near the ocean or other natural sources for salt were lucky. Those who did not had to trade for salt. In fact, people used salt as a method of payment in many parts of the ancient world. The word “salary” comes from the word “salt”.

    Salt also played an important part in population movement and world exploration. Explorers understood that if they could keep food fresh, they could travel longer distances. So they used salt to preserve food and explore the world.

    Salt was so important that, according to food historians, it was traded pound-for-pound for gold. Today, people still use the expressions “worth one's salt” or “worth one's weight in salt”. The expressions describe a person of value.

    A person might also be called “salt of the earth”. That description means he or she is dependable and trustworthy. However, when you say “I think we should take what he said with a grain of salt”you mean you accept it but maintain a degree of doubt about its truth.

阅读理解

    Being sociable looks like a good way to add years to your life. Relationships with family, friends, neighbours, even pets, will all do the trick, but the biggest longevity(长寿) boost seems to come from marriage or an equivalent relationship. The effect was first noted in 1858 by William Farr, who wrote that widows and widowers(鳏夫) were at a much higher risk of dying than their married peers. Studies since then suggest that marriage could add as much as seven years to a man's life and two to a woman's. The effect holds for all causes of death, whether illness, accident or self-harm.

    Even if the odds are stacked against you (the conditions are not favourable), marriage can more than compensate. Linda Waite of the University of Chicago has found that a married older man with heart disease can expect to live nearly four years longer than an unmarried man with a healthy heart. Likewise, a married man who smokes more than a pack a day is likely to live as long as a divorced man who doesn't smoke. There's a flip side, however, as partners are more likely to become ill or die in the couple of years following their spouse's death, and caring for a spouse with mental disorder can leave you with some of the same severe problems. Even so, the odds favour marriage. In a 30-year study of more than 10,000 people, Nicholas Christakis of Harvard Medical School describes how all kinds of social networks have similar effects.

    So how does it work? The effects are complex, affected by socio-economic factors, health-service provision, emotional support and other more physiological mechanisms(机制). For example, social contact can boost development of the brain and immune system, leading to better health and less chance of depression later in life. People in supportive relationships may handle stress better. Then there are the psychological benefits of a supportive partner.

    A life partner, children and good friends are all recommended if you aim to live to 100.The best social network is still being mapped out, but Christakis says: “People are interconnected, so their health is interconnected.”

阅读理解

    Photos of the moon are beautiful if taken well, but it can be very hard to get a picture of the moon that doesn't look blurry! In order to take a perfect picture of the moon, apart from a high­quality camera, the associated equipment and the skills to set up your camera, you also need to pick a proper time and a good place.

    Choose your favorite moon phase. The moon can be photographed in any phase except the new moon, which is not visible to Earth. The first quarter, half, and third quarter phases provide high contrast that allows you to see the craters(坑) in greater detail, while the full moon is a dramatic choice for a skyscraper. What phase you choose is up to your personal preference, but it's best to have a phase chosen before going out to photograph the moon.

    Learn when the moon rises and sets. When the moon sets or rises, it is closer to the horizon, making it appear larger and closer. This makes it much easier to photograph! Check an almanac(年历) or a weather app for moon rising and setting times in your area.

    Pick a clear night. Clouds, fog, and air pollution will blur your photographs. Check a weather app or watch the weather forecast before leaving for your session and while photographing. A clear night with low smog content and no rain is best for moon photography.

    Choose a location away from direct light sources. The moon appears bright because it reflects the light of the sun, and additional light from streetlights, homes, and cars can make the moon appear duller and blurrier in pictures. It is fine if there is light in the distance, but be sure that you are not photographing close to another light source.

阅读理解

    Nelle Harper Lee was born on April 28,1926. Since Lee's mother was mentally ill, she was raised by her father. She became very close to her father.

    The naughty Lee loved reading, and would make up stories with Truman, her neighbour who was two years older than her. Seeing her daughter's imagination, Lee's father gave her a typewriter.

Before her final year in the university of Alabama, Lee dropped out to become a writer. She moved to New York City where her childhood friend Truman was already established as a famous writer. While there, she worked on her first book—To Kill a Mockingbird. It won her the Pulitzer Prize in 1961 and was made into an Academy Award winning movie the following year. To Kill a Mockingbird tells the story of six-year-old Scout and her brother who lived in the town of Maycomb Alabama with their single father Attics. Attics is a lawyer who defends the blacks. At a young age, Scout is exposed to the terrors of segregation(宗族隔离)。Then, in 2014, the first draft of a new book—Go Set a Watchman was discovered among Lee's papers. It is the story of 26-year-old Scout who returns to Maycomb to visit her father. She is shocked to find her father a changed man. Attics has turned into a segregationists! The story shows the mixed feelings Scout has for the changes that have taken place in her hometown and father.

    A loner for most of her life, Lee stayed unmarried, preferring to lead a small town life. On February 19, 2015, Lee passed away at the age of 89.

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