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题型:阅读理解 题类:常考题 难易度:普通

福建省龙岩市非一级达标校2018-2019学年高二上学期英语期末考试试卷

阅读理解

    It happens from time to time: you feel terrible when you take your first bite of a certain food, but after eating more, you find yourself enjoying it. This is what is called an acquired taste. But why do our tastes change?

    The answer, according to a recent study presented at an American Chemical Society meeting in Boston, lies in proteins in our saliva (唾液).

    Most of us tend to think saliva, almost entirely made up of water, is “only a mouth lubricant (润滑剂) helping us to swallow food,” the New York Times said. However, it also contains many proteins, which can help break food down, protect our teeth and help in tasting food.

    To explain how these proteins affect taste, a team of scientists from Purdue University in the US invited 64 volunteers to drink a bitter-tasting chocolate milk three times a day for six weeks and rated their tastes at the same time.

    According to the research, the participants found a strong bitterness on the first day, but the unpleasant flavor came to decrease as time went on and finally disappeared.

    That is not all that was changing. A noticeable increase in the levels of proline-rich (富含脯氨酸的) proteins was found in the saliva samples of the test subjects in the research period. These proteins serve to reduce the bitterness we taste and improve our adaptation to this flavor.

    “We think the body adapts to reduce the negative feeling of these bitter compounds,” said Cordelia Running, a food scientist at Purdue University. “Saliva changes flavor, which in turn changes eating choices.”

    This change in taste not only makes the food tastier, but also helps people keep an appetite for healthy food whose flavor might otherwise keep them away.

    One day, these proteins may even be extracted (提炼) and used as a separate food additive that could help people stick to healthy food whose flavor they continue to dislike, researchers told Science Alert. And according to Running, even it doesn't happen, the idea that “maybe some little piece of your body is actually trying to help you” could really benefit some people. Let's wait and see.

(1)、What does the underlined phrase “an acquired taste” in Paragraph 1 refer to?
A、The appetite for healthy food. B、A mouth lubricant helping to swallow the food. C、Something that tastes very delicious at first bite. D、A preference that is only formed after great repetitions.
(2)、What contributes to the changes of our taste?
A、Our negative feelings of food. B、Our adaptation to this flavor. C、The proteins in our saliva. D、The flavor of the food.
(3)、Which of the following statements is TRUE according to the text?
A、Saliva consists of many proteins besides water. B、The unpleasant flavor will increase with time going on. C、A separate food additive has been extracted from the proteins. D、Proteins have nothing to do with the changes of our taste.
(4)、What can we infer from the last paragraph?
A、There will be bitter candy in the future. B、You can change the flavor as you like in the future. C、The researches will go on studying these proteins. D、It won't be long before we can make unhealthy food healthy.
举一反三
阅读理解

    Recently, online hike-sharing has become the new favorite in China. In major cities, bikes in, yellow, orange, blue, white and green, can be seen almost everywhere on the street. It seems that these bikes appeared suddenly, adding a new beautiful scenery to Chinese cities.

    Both the market and the public welcome online bike-sharing, but is it really a promising business? Well, it depends. After all, online bike-sharing platforms can never get away with huge operating cost and uncertain government policy.

    Some theorists might say that online bike-sharing platforms can earn a fortune simply through deposit. Since users will always need to rent bikes, their deposit will always be kept to online bike-sharing platforms.

    However,although online bike-sharing platforms may be able to use the deposit for other purposes at the primary stage, they will have to set up a special account, so that the deposit shall be used specially for its designated (指定的) purpose. As the market gets increasingly mature, they will have to do so whether to be responsible for users or in consideration of possible government regulations.

    Now that online hike-sharing platforms can,t make profit through deposit,how can they become profitable as fiercer market unfolds? Although Hu Weiwei, CEO of Mobike, stated in an article that she would take Mobike as charitable(慈善的) project if she failed, running a startup is absolutely different from managing a charity organization. After all , she has to pay back investors' billions of investment(投资).

    To make profit, online bike-sharing platforms might have toincrease rent fee for each trip, just as Didi did

    From this aspect, it might be a really good business. If we consider full screen ads fee, recommendation fee for business owners, etc. , its annual income might reach at least RMB 15 billion. If we consider the huge operation cost, including bike repairs,bikes' service life and labor cost, there might not be much net profit left. After all, offline operation cost has always been an unbearable burden for such internet plus mode-based startups.

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。

阅读理解

    Guided Walking Week April 2016

    Dates: April 30th-May 7th 2016

    Location: Abdet, Costa Blanca

    A week of guided walking in the mountains around Abdet. Highlights include the climbing of Valencia's highest summit (Sierra de Aitana), traveling completely around the impressive Puig Campana, and several explorations in the Sierra de Aitana. Ancient trails lead through spectacular canyons(峡谷) to abandoned settlements situated high in the mountains. You will discover the snow trader routes which lead from the incredible snow holes high in the mountains down to the villages and towns on the coast. These years, golden eagles have made a return to this area, and you may also see other animals—wild goats, foxes, wild pigs and red squirrels.

    As part of the week you are invited to help clear some local walking paths. This involves clearing collapsed (坍塌的) walls and rocks, cutting back fallen trees. This is of course optional and is just for half a day, it's actually great fun!

Price:$499

Includes:

    Accommodation in the beautiful mountain village of Abdet

    All food-good home cooking

    Beer, wine, soft drinks

    Snacks and post walk treats

    Packed lunches & drinks(except café/bar visits)

    Expert guiding

    Photos/Videos of your days in the mountains

    Airport pick-up/return $25 each way(fly to Alicante)

    Single room supplement $75

    To book or get further information, please contact info@abdet.com.

阅读理解

    For grown-ups, an afternoon snooze(打盹) is often easier said than done. But many of us have probably experienced just how simple it can be to catch some sleep in a gently rocking hammock(吊床). By examining brain waves in sleeping adults, researchers reported in the June 21 issue of Current Biology, a Cell Press publication, that they now have evidence to explain why that is.

    “It is a common belief that rocking causes sleep: we fall asleep in a rocking chair soon and, since ancient times, we cradle our babies to sleep,” said Sophie Schwartz of the University of Geneva. “Yet, how this works had remained a mystery. The goal of our study was made up of two parts: to test whether rocking does indeed improve sleep, and to understand how this might work at the brain level.”

    Schwartz, Michel Mühlethaler, and their colleagues Laurence Bayer and Irina Constantinescu asked twelve adult volunteers to nap on a custom-made bed or “experimental hammock” that could either remain still or rock gently. All participants were good sleepers who didn't typically nap and did not suffer from excessive sleepiness during the day. Each participant took two 45-minute afternoon naps, one with the bed still and one with the bed in motion, while their brain activity was monitored.

    “We observed a faster transition to sleep in each and every subject in the swinging condition,” Mühlethaler said. “Surprisingly, we also observed a dramatic boosting of certain types of sleep-related brain waves.”

    More specifically, rocking increased the length of stage N2 sleep, a form of non-rapid eye movement sleep that normally occupies about half of a good night's sleep. The rocking bed also had a lasting effect on brain activity, increasing slow brain waves and bursts of activity known as sleep spindles(纺锤体).

    Schwartz and Mühlethaler say the next step is to find out whether rocking can improve longer periods of sleep and to find out whether it may be useful for the treatment of sleep disorders, such as insomnia(失眠).

阅读理解

    A girl had to usually face adversity(逆境). One day, she couldn't help complaining to her father about her life and how things were so hard for her. She didn't know how she was going to make it and wanted to give up. She was tired of struggling. It seemed as one problem was solved a new one arose.

    Her father, a chef, took her to the kitchen. He filled three pots with water and placed each on a high fire. Soon the pots came to a boil. In one he placed carrots, in the second he placed eggs, and in the last he placed ground coffee beans. He let them into the water and boil, without saying a word.

    The daughter waited impatiently, wondering what he was doing. In about twenty minutes he turned off the burners. He made the carrots out and placed them in a bowl. He pulled the eggs out and placed them in another bowl. Then he poured the coffee out and placed it in a cup. Turning to her, he asked, "What do you see?" "Carrots, eggs and coffee," she replied.

    He brought her closer and asked her to feel the carrots. She did and noted that they were soft. He then asked her to take an egg and break it. After pulling off the shell, she observed the hard-boiled egg. Finally, he asked her to sip the coffee. She smiled, as she tasted its rich aroma(香味). She humbly asked, "What does it mean, Father?"

    He explained that each of them had faced the same hardship, boiling water, but each reacted differently. The carrot had been strong and hard. But after being subjected to the boiling water, it softened and became weak. The egg had been easily broken. Its thin outer shell had protected its liquid interior. But after going through the boiling water, its inside became hardened. The ground coffee beans were unique. After they were in the boiling water, they changed the water. "Which are you?" he asked his daughter. "When adversity knocks on your door, how do you respond? Are you a carrot, an egg, or a coffee bean?"

    How about you, my friend? Are you the carrot that seems hard, but with pain and adversity you move back and become soft and lose your strength? Are you the egg, which starts off with a flexible heart? Were you a liquid spirit, but after a breakup, a divorce, or a layoff have you become hardened and stiff? Your shell looks the same, but are you bitter and tough with a stiff heart? Or are you like the coffee bean? The bean changes the hot water, the thing that is bringing the pain. When the water gets the hottest, it just tastes better. If you are like the bean, when things are at their worst, you get better and make things better around you.

    Ask yourself how you handle adversity. Are you a carrot, an egg, or a coffee bean?

阅读理解

    Little Women is the best-known work of author Louisa May Alcott. Published after the end of the Civil War, the book is about the lives of the author and her sisters. Although it was her most successful work, it was not her first.

    Alcott began writing at the age of 20, when she published her poem “Sunlight”. Throughout her early career, she wrote many poems and short stories for magazines. At the age of 22, she began to write fairy tales, romantic thrillers, and other novels, mostly to earn money. At a time when few opportunities were open to women, Alcott supported women's right to work. With her small income, she had long provided for her family.

    When the Civil War broke out, Alcott, at the age of 30, joined the war effort to fight against slavery. She had originally wished to serve as a soldier. However, women were not allowed in battle at that time. As a result, she became a Civil War nurse. Alcott's work as a nurse served as a milestone (里程碑) in her writing career.

    In December of 1862, she left New England to work in the Union Hotel Hospital in Washington, DC. There were few supplies, and doctors performed operations without painkillers. The conditions for patients and doctors were terrible. Within a few weeks, Alcott herself became so ill that she nearly died. She returned home and recovered slowly over a period of months.

    As soon as her health improved, Alcott started a new project. The letters she had sent home became the basis of a newspaper series about her experience as a Civil War nurse. She wrote about her tasks, the wounded soldiers she looked after, and the difficulties they faced. The series, Hospital Sketches, was a success, which received praise from readers and critics (批评) at the same time. Although her best-known work was yet to come, the success of Hospital Sketches marked the achievement of her dream to become a popular author.

阅读理解

    Dr. John Wilkins was a natural philosopher who lived from 1614 until 1672. He was crazy about getting to the moon and meeting the people who surely lived there. Wilkins believed that anything as Earth-like as the moon must have been created by God for living beings, and he was determined to meet them — despite the fact that he was three centuries ahead of his time.

    In the 1600s, the scientific understanding of gravity and outer space was limited. Wilkins believed, like many 17th-century scientists, that there was no difference between the atmosphere of Earth and the conditions in space, and that Earth's pull was due to magnetism (磁力). It was only reasonable, then, that Wilkins believed a two-wheeled horse-drawn battle car with wings with enough speed could lift high enough off the ground to break free of Earth's magnetic pull and reach the moon.

    Then Wilkins moved on to more pressing issues with his remarkable ability to think of new ideas: How would travelers feed themselves during the journey? He theorized that the main cause of hunger was simply the act of working against gravity, so getting to the moon without being burdened by it would be able to be realized. There was some knowledge at that time about the fact that air gets thinner and colder the higher up you go, but he had a fix for that too, "moistened sponges (湿润的海绵) might help us against its thinness".

    By studying the way in which birds fly, which also happened to be part of the studies that led to planes and rockets centuries later, Wilkins put his theory to the test with the help of a colleague, Robert Hooke. Neither of the two ever recorded their attempts, but it's somewhat safe to say that it didn't work out. Hooke himself may have been the reason he gave up hope, in fact, since he was part of the team that discovered space was a place without oxygen.

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