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题型:阅读理解 题类:常考题 难易度:普通

江苏省常州“教学研究合作联盟”2018-2019高二下学期英语期中考试试卷

阅读理解

    Metal-organic frameworks(MOFs) are compounds that are set to solve some tough challenges: producing water in the desert, removing greenhouse gases from the air and storing dangerous gases more safely.

    The Arizona desert is really dry. Anyone stuck in it without water would die from dehydration (脱水) within three days. Unless, that is, they had one of Omar Yaghi's next-generation water harvesters. Although daytime humidity(湿度)is only about 10 per cent, this rises to 40 per cent at night, which means there's enough water in the atmosphere to support life — if it can be transformed into liquid form.

    That's exactly what Yaghi's device does. It's a box about the size of a small microwave oven designed to suck the humidity from the air at night and turn it into drinking water the next day using only the heat of the sun as its power source. What makes it work is a special material called a metal-organic framework (MOF), which at normal temperatures attracts water molecules (分子) onto its surface of its internal pores(细孔). Warm it up and the water is released, each harvest producing one-third of a cup of pure drinking water.

    "With further improvements, a device, the size of a washing machine, could produce enough water for the basic needs of a household," says Yaghi, a chemist at the University of California. One-third of the world's population lacks safe drinking water; for them such a device could be a lifesaver.

    These crystalline cluster(结晶群)of metals, such as aluminum or magnesium, linked by organic molecules can be made into materials with an extremely high absorption ability, attracting specific molecules to their surface. In this way, MOFs cling to a variety of liquids and gases.

MOFs work thanks to their unique structure—large quantities of nanometer-sized internal spaces. In fact one MOF has so many pores that they would cover an area as large as six football fields. MOFs are also extremely stable light and have many different uses: their molecular structure can be varied to attract specific molecules, such as water, and their pores can be designed to best store them. Adding a small amount of heat or pressure causes the MOF to release what it is holding. More than 70,000 different MOFs have been produced to date for various applications.

(1)、Why is the Arizona desert mentioned in the second paragraph?
A、To introduce water harvesters. B、To stress the importance of water. C、To express the urgent need for water there. D、To show its serious condition.
(2)、What plays a vital role in water harvesters?
A、solar energy. B、water molecules. C、a small microwave oven D、metal-organic frameworks.
(3)、What does the underlined phrase "cling to" in paragraph 5 probably mean?
A、hold onto B、break down C、give off D、turn into
(4)、What will probably be covered in the following paragraphs?
A、The future of the MOF technology. B、Other uses of the MOF technology. C、The limitation of the MOF technology. D、The improvement of the MOF technology.
举一反三
阅读理解

    I live in the land of Disney, Hollywood. You may think people in such an attractive and exciting, fun-filled place are happier than others. If so, you have some mistaken ideas about the nature of happiness.

    Many intelligent people still consider happiness equal to fun. The truth is that fun and happiness have little or nothing in common. Fun is what we experience during an act. Happiness is what we experience after an act. It is a deeper, more lasting emotion.

    Going to an amusement park or ball game, watching a movie or television, are fun activities that help us relax, temporarily forget our problems and maybe even laugh. But they do not bring happiness, because their positive effects end when the fun ends.

    I have often thought that if Hollywood stars have a role to play, it is to teach us that happiness has nothing to do with fun. These rich, beautiful people have constant access to glamorous parties, fancy cars, expensive homes, everything that brings “happiness”. But in memoir after memoir, famous people expose the unhappiness hidden beneath all their fun — depression, alcoholism, drug addiction, broken marriages, troubled children and extreme loneliness.

    Ask an unmarried man why he refuses to get married even though he finds dating to be less and less satisfying. If he's honest, he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure and excitement. Marriage has such moments, but they are not its most distinguishing features.

    Similarly, couples that choose not to have children are deciding in favor of painless fun over painful happiness. They can dine out whenever they want and sleep as late as they want. Couples with babies are lucky to get a whole night's sleep or a three-day vacation. I don't know any parent who would choose the word fun to describe raising children.

    The way people stick to the belief that a fun-filled, pain-free life equals happiness actually reduces their chances of ever achieving real happiness. If fun and pleasure are equal to happiness, then pain must be equal to unhappiness. As a result, they fear the pain unavoidably brought by such things as marriage, raising children, professional achievement, religious commitment and self-improvement.

    But, in fact, the opposite is true. More times than not, things that lead to happiness involve some pain. The very efforts are the source of true happiness. Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations we can ever come to.

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

    Blogit is the first online subscription(订阅) network connecting individual readers and writers.As Blogit grows, amazing things are happening.A friendly, active community has formed: readers are finding writers they enjoy; strangers are becoming friends; old classmates are running into one another; even romances are blossoming.And popular writers have already earned more than $1,000 on Blogit each month.

Want to try? First of all, Blogit lets writers easily realize their dreams to write.Writers get their own writing space, where they are free to write on any topic, whenever they want: from opinion and observation to novel and poetry.Secondly, writers experience the excitement of knowing they are read, and enjoy gradually gaining a loyal(忠实的) following.It' s simple for writers to find readers on Blogit, since there is a various, worldwide audience of people, waiting to read and comment —-right now.

    You never know whom you might meet on Blogit.Whether writers are looking for a quiet readership or are hungry for a spirited discussion, they will find it on Blogit. Many writers even have readers who have become new friends. Blogit member introduction appear on many of the top Internet search engines, which allows writers to publicize (宣传)their identity and helps increase their number of readers.

    Thanks to modern technology, writers get everything they need to begin.They can even make additional choices, to add pictures and select different styles, for example.There is nothing to install(安装), and no  special software is needed.As Blogit grows, we are upgrading(更新)our systems and adding new features(专题节目) requested by members.We do our best to help members, replying to most questions within one business day.

I invite you to try Blogit today.Here' s my promise: if you find that you aren't being read on Blogit, simply cancel(取消) your subscription and you will not be charged again.It' s quick and easy to sign up.If you sign up now, you'll get all of Blogit's benefits for only $12.95 per month.You can start to be read and begin earning money directly!

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。

根据短文理解,选择正确答案。

    The stories we share with one another are important. They show wisdom and provide inspiration. They are important to our development. But sometimes people choose not to tell.

    Considering the negative effects of not sharing a story in the news, people are wondering if public health officials are holding back too much information about the recent outbreak of Ebola.

    There is a danger in holding back stories that ought to be told. Bobette Buster said it like this, “The fact is, history has shown us that stories not told can become like a dangerous genie (妖怪) left in a bottle. When they are finally uncorked(透漏), their power to destroy is set free."

    There are a number of reasons why we hide parts of our story: they often show our weaknesses or expose our disadvantages; they require courage and strength to share; and of course, there are some stories that should be kept secret—especially those that embarrass someone else.

    Most of us have two selves: the one we display on the outside and the one we actually are on the inside. And the better we get at hiding the stories that show our true selves, the more damage we may be causing to ourselves and to others.

    Honesty and openness is important: It proves we are trustworthy. It displays we are human. We are not perfect or better. It highlights the importance of hard work and personal development. Hard work may not allow us to overcome our disadvantages completely. But with hard work, we do not have to be restricted to our mistakes.

    Does this mean we admit every weakness, every disadvantage, and every secret regret to everybody we meet? No, of course not. There is a time and a place and a certain level of relationship necessary for some stories to be told in an appropriate manner.

根据短文理解,选择正确答案。

    When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she struggled to find a place to sleep on the street. But she overcame these terrible setbacks to win a highly competitive scholarship and gain entry to Harvard University. And her amazing story has inspired a movie, “ Homeless to Harvard: The Liz Murray Story”, shown in late April.

    Liz Murray,a 22-year-old American girl, has been writing a real-life story of willpower and determination. Liz grew up in the shadow of two drug-addicted parents. There was never enough food or warm clothes in the house. Liz was the only member who had a job. Her mother had AIDS and died when Liz was just 15 years old. The effect of that loss became a turning point in her life. Connecting the environment in which she had grown up with how her mother had died, she decided to do something about it.

    Liz went back to school. She threw herself into her studies, never telling her teachers that she was homeless. At night, she lived on the streets. “ What drove me to live on had something to do with understanding, by understanding that there was a whole other way of being. I had only experienced a small part of the society,” she wrote in her book Breaking Night.

    She admitted that she used envy to drive herself on. She used the benefits that come easily to others such as a safe living environment, to encourage herself  that “next to nothing could hold me down”. She finished high school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her top university a couple of months earlier this year in order to take care of her father, who has also developed AIDS. “I love my parents so much. They are drug addicts. But I never forget that they loved me all the time.”

    Liz wants moviegoers to come away with the idea that changing your life is “as simple as making a decision”.

阅读理解

    You can't always predict a heavy rain or remember your umbrella. But designer Mikhail Belyaev doesn't think that forgetting to check the weather forecast before heading out should result in you getting wet. That's why he created Lampbrella, a lamp post with its own rain-sensing umbrella.

    The designer says he came up with the idea after watching people get wet on streets in Russia. “Once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy(伞蓬) built into a street lamp,” he said.

    The Lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand Sensors(传感器) then ensure that the umbrella offers pedestrians shelter whenever it starts raining.

    In addition to the rain sensor, there's also a 360°motion sensor on the fiberglass street lamp which detects whether anyone is using the Lampbrella. After three minutes of not being used the canopy is closed.

    According to the designer, the Lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lightning strike. Each Lampbrella would offer enough shelter for several people. Being installed(安装) at 2 metres off the ground, it would only be a danger for the tallest of pedestrians.

    While there are no plans to take the Lampbrella into production, Belyaev says he recently introduced his creation to one Moscow Department, and insists his creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

 阅读理解

A significant proportion of the American populace within the working-age demographic are encountering challenges in meeting the financial demands associated with health care, as per a recent comprehensive evaluation. This study, which is the inaugural edition of the Health Care Affordability Survey conducted by the Commonwealth Fund, reveals that a substantial 51 percent of adults falling within the age bracket of 19 to 64 years have expressed that affording health care for themselves and their family is either exceedingly challenging or moderately difficult. This observation encompasses 43 percent of individuals who are beneficiaries of health insurance provided by their employers and an even higher 57 percent who have secured health insurance through a marketplace or have opted for an individual plan.

Additionally, it is noteworthy that nearly one-half of the working-age adults who are under the Medicare program and 45 percent of those who are recipients of Medicaid also admit to facing hardships in covering their health care expenses. It is particularly striking that a majority, specifically 65 percent, of working-age adults have indicated that the escalation in the cost of various goods and services over the past year has had a detrimental impact on their capacity or that of their family to manage health care expenses.

The aforementioned survey, which is based on a sample that is representative of the nation and comprises nearly 7,900 individuals who are 19 years of age or older, was carried out from the mid-point of April through the month of July in the current year. This survey follows on the heels of another analysis conducted by the research entity known as KFF, which demonstrated an upward trend in the costs associated with health insurance for employer-sponsored plans as well as an increase in the contributions made by workers towards these plans in the year 2023.

The newly disseminated analysis has further unearthed that 38 percent of the individuals who participated in the survey identified cost as the primary factor that led them or a family member to either forgo or postpone the receipt of necessary health care services or the procurement of prescribed medication within the last 12 months. This includes 29 percent of those who are under the protection of employer-based coverage, 37 percent who are insured through individual and marketplace health plans, 42 percent who are covered by Medicare, and 39 percent who are recipients of Medicaid.

Furthermore, it is observed that more than six-tenths of the individuals who are devoid of any form of health insurance have reported that they or a family member have had to delay or forgo medical care due to financial constraints. Among all those who have reported such instances of skipping or delaying care, a considerable 57 percent have stated that a health issue has consequently deteriorated.

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