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题型:阅读理解 题类:常考题 难易度:普通

山西省陵川第一中学校等四校2017-2018学年高一下学期英语期末考试试卷

阅读理解

    Plastic is easy, convenient, cheap and long-lasting, but it does great harm to the environment.

    Since plastic entered mass production, 8 billion tons have been produced – and we aren't very good at recycling. By 2015, 6,945 tons of plastic waste had formed, with around 9 percent of it getting recycled. About 79 percent of it ends up in landfills or around the environment, including the ocean. We may end up drowning in plastic before long.

    Chemists at Colorado State University have found a polymer(聚酯)that has many of the qualities of plastics – it's light, strong, durable and heat-resistant – but that can be changed back to its original small-molecule(分子)state for complete recycling. Even after being recycled, the polymer can be turned back into its plastic-like state, and this can be done quickly and cheaply.

    This new polymer has all the good qualities of plastics, yet it is relatively easy to make and to recycle. Making it requires room temperature conditions, a short reaction time to bond the monomer(单体)into polymers and only a small amount of the catalyst(催化剂)remains in the end product. It has a high molecular weight, stands up to heat and generally behaves like plastic. Recycling it requires similarly little effort. Mild lab conditions are required and so is a catalyst. Once applied, the polymers are once again monomers in a matter of minutes and can be used to create another product.

    But don't get too excited about this just yet. Scientists stressed that the polymer isn't ready for mass products just yet. There's still plenty of development to do, including making it more economical to produce and recycle.

(1)、What can we infer from the second paragraph?
A、It is impossible to recycle old plastics. B、79 percent of plastics has been recycled. C、Small quantities of plastics get recycled. D、Landfills aren't enough to handle plastics.
(2)、What aspect of the new polymer is the third paragraph mainly about?
A、Its purposes. B、Its qualities. C、Its structures. D、Its applications.
(3)、What conditions are needed when making the new polymer?
A、Mild temperature. B、Cold temperature. C、Body temperature. D、Room temperature.
(4)、The new polymer isn't mass-produced probably because ________.
A、it is not very cheap B、it seems too light C、it is hard to recycle D、it can't stand cold
举一反三
阅读理解

    For many years, scholars have regarded My Mortal Enemy as somewhat of an enigma. Written in only a few months during the early spring of 1925 and published in 1926, Willa Cather's shortest novel was sandwiched in between The Professor's House (1925) and Death Comes for the Archbishop (1927). While the subject matter of these latter two works can be traced to Cather's experience in the desert Southwest, My Mortal Enemy seemingly has nothing to do with these subjects or her Nebraska roots; it appears to have come out of nowhere, puzzling those who have tried to fit this rather irregular work into a logical progression of Cather's artistic development. The question of what caused Cather to write such a novel at this point in her career, for example, has still not been answered definitively. One commonly held hypothesis (假说) was first voiced by Marcus Klein, who in his 1961 introduction to the novel wrote that for Cather, “The story of Myra Henshawe must have been a personal crisis”. Klein, though, acknowledged that he could not prove his theory, “because there is available no record other than the novel”. Emmy Stark Zitter has recently argued that in My Mortal Enemy and Sapphira and the Slave Girl(1940) Cather exercises the autobiographical impulse (冲击) by putting details of her own life into her fiction, but, like Klein, she is unable to name which “details” of her life Cather drew on in writing My Mortal Enemy.

    As hinted (暗示) in the above statements by Klein and Zitter, much of the general uncertainty about the meaning of My Mortal Enemy can be traced to the absence of a persuasive theory as to who the real-life models for the novel's characters were and what Cather's relationship to them was. Cather herself wrote in a 1940 letter that, in James Woodress's paraphrase, “she had known Myra's real-life model very well, and the portrait drawn in the story was much as she remembered her”; Cather also added that the woman had died fifteen years before My Mortal Enemy was published, and that many relatives of this model later wrote to her to say that they recognized the “real” Myra from her description in the novel. Given such hints and Cather's liking for drawing on her experiences in Nebraska for characters, settings, and plots, it is quite understandable that scholars have thus looked to Red Cloud and Lincoln for possible sources of the people and events depicted in My Mortal Enemy.

    In light of the evidence presented in this article, though, I believe that Cather intended her comments about the model for Myra Henshawe to serve as red herrings (转移注意力的言语) that would protect her relationship with the couple who were the prototypes (原型) for the Henshawes, both of whom were still alive in 1925. Mark Madigan has recently confirmed how Cather in 1905 had to hold off publishing “The Profile (传略)” because of fears that the main character might recognize herself and commit suicide, and twenty years later Cather would have been well aware of how her description of the Henshawes might have affected both the real-life wife (who died in 1929) and husband (who died in 1949) if they had recognized themselves. It is my argument that the Henshawes were modeled after people Cather knew not in Nebraska but rather in New York: S. S. and Hattie McClure. Myra's uncle, John Driscoll, was modeled after Hattie's father, Professor Albert Hurd.

    Possibly most important, identifying the Henshawes as the McClures allows us to more conclusively identify Cather herself with Nellie Birdseye. Nellie and Cather, both Midwestern onlookers and recorders, experienced four distinct stages in their relationships with the Henshawes and the McClures (especially with S. S.) My Mortal Enemy, I believe, was an extended attempt by Cather to deal with certain aspects of her own past and to move on in a world stripped of romantic illusion.

阅读理解

    When we think about happiness, we usually think of something surprising and unexpected, a top great delight.

    For a child, happiness has a magic quality. I remember playing police and robbers in the woods, getting a speaking part in the school play. Of course, kids also experience lows, but their delight at tops of pleasure is easily seen, such as winning a race or getting a new bike.

    For teenagers, or people under 20, the idea of happiness changes. Suddenly it's conditional on such things as excitement, love, and popularity. I can still feel the pain of not being invited to a party that almost everyone else was going to. I also recall the great happiness of being invited at another event to dance with a very handsome young man.

    In adulthood the things that bring great joy — birth, love, marriage — also bring responsibility and the risk of loss. Love may not last; loved ones die. For adults, happiness is complex.

    My dictionary explains “happy” as “lucky” or “ fortunate”, but I think a better explanation of happiness is “ the ability to enjoy something”. The more we can enjoy what we have, the happier we are. It's easy for us not to notice the pleasure we get from loving and being loved, the company of friends, the freedom to love where we please, and even good health. Nowadays, with so many choices and much pleasure, we have turned happiness into one more thing we have. We think we own the right to have it, which makes us extremely unhappy. So we try hard to get it and consider it to be the same as wealth and success, without noticing that the people who have those things aren't necessarily happier.

    While happiness may be more complex for us, the answer is the same as ever. Happiness isn't about what happens to us. It's the ability to find a positive for every negative, and view a difficulty as a challenge. Don't be sad for what we don't have, but enjoy what we do possess.

阅读理解

    Have you ever lost your car on a parking lot? You don't have a clue where your car is after shopping. Then you start walking around clicking on your car keys so the alarm goes off. It can be annoying, especially on a hot sunny day.

    No, you needn't install (安装) an expensive GPS system to keep track of your car. That's too expensive. You would need to pay a monthly fee to use it.

    But is there a way to track your vehicle without spending a fortune? Yes, now there is! A California-based company has created a tiny device that works with your smartphone, which could be exactly what you're looking for!

    What is it?

    It's called TrackR. It is a state-of-the-art tracking device the size of a coin. It's changing the way we keep track of the important things in our lives.

    How does it work?

    It's easy! Install the free TrackR app on your smartphone, connect the app to your device and you're ready to go! Simply attach TrackR to whatever you want to keep an eye on. The entire process of setting it up only takes 5 minutes or less.

    You can attach it to your keys, briefcase, wallet, your latest tech gadgets and anything else you don't want to lose. Then use the TrackR app to locate your missing item in seconds.

    If you forget where you have parked your car, pull out your smartphone and open the TrackR app. Tap on the “find device” button on the screen and the app will tell you the exact spot of the last known location of the TrackR.

    What else can I do with TrackR?

    The device is small and unnoticeable enough that you can attach it to your pet. Put it on their collar, and the issue of searching for them when they run away to nearby places will be over! You'll never waste a minute searching the whole house for it.

    TrackR even comes with a double-sided glue (胶水) so you can stick it to your laptop or under your bike seat. Track down and punish the thieves who steal your expensive things!

    How much does it cost?

    You're probably thinking that this device is very expensive. False! TrackR only costs $29! That's a small price to pay for peace of mind, isn't it?

    Where can I buy one?

    You can buy it directly from the company's website by clicking here https: //buy. thetrackr. co/gu/special- offers/15/.

阅读理解

    Four Free Mobile Apps to Help You Learn English Faster

    Have you realized that you can put your smartphone to really good use for learning English? Here are 4 free mobile apps that will help you do just that.

Hello English

    It covers all the aspects of language learning, including vocabulary, translation, grammar, spellings, spoken and reading skills. It uses interactive games to teach different English lessons and offers new audiobooks, latest news, and books. However, you should already understand basic English structures and alphabets, for the app can't help you learn English from scratch(从零开始).

    Duolingo

    If you want to learn English from scratch, then this is the app you are looking for. Duolingo uses interactive games to help you learn English. For beginners, the app focuses on helping you learn verbs, phrases and sentences.

    Lingbe

    If you are ready to practice your spoken skills in the real-world, you'll need Lingbe. It's a community-based app where people help each other and share their native languages. It connects you with real people on call who are native English speakers.

    HelloTalk

    HelloTalk is similar to Lingbe as it connects you with native speakers to help improve your language skills. However, it adds a few extra functions that might interest you. You can view the information about users to find a match that interests you. Additionally, you can also send text and audio messages, and even do video calls with other people.

    If you are a beginner, start from Duolingo and then use Hello English to take full command over the language. For fluent spoken English learners, you can try out Lingbe or HelloTalk.

阅读理解

    A recent experiment proves that bees can save time and energy when they fly around to different flowers.

    Dr Nigel Raine, from the Royal Holloway University of London, has always been interested in finding out why animal behave like they do. He is also interested in bees. It was not a surprise when he and some other scientists from Queen Mary University of London discovered that bees can quickly solve a problem that takes computers many days.

    Flowers make pollen (花粉), and when bees visit them, they carry the pollen to other flowers. The plants need the pollen to make seeds that will grow. Dr Raine notes that we get a lot of our food from plants, so it is important to know how the bees move around and take the pollen between flowers. The scientists wanted to examine the journey that the bees take and how they save energy when they do this. They completed the experiment on the roof of Queen Mary University, using artificial flowers and a large amount of nectar, a sweet liquid produced by flowers. They taught one bee to visit all the flowers in one place at the same time. When the bee got to know the location of the flowers well, they saw how it flew around and returned home with the nectar. After this, they changed the locations of the flowers. The scientists thought the bee would follow the route it knew already. This would mean that it followed a longer route than it needed to, and so it would use more energy. They watched the bee carefully as it travelled between the flowers in their new location, and they made notes. But in the experiment, the bee changed its route and flew a shorter distance.

    The problem that the bee solved is similar to a maths puzzle called the 'travelling salesman problem'. A salesman who goes to different places to sell things wants to travel the shortest distance. But he has to calculate the length of many possible routes to know which one is the shortest. A computer can calculate this but the experiment shows bees can do the same calculation quickly with a tiny brain. Scientists are very interested in how they do this. It would help us to understand how pollen is moved around. In addition, if they find this out, it could help us to improve communication networks. This might help humans to reduce traffic jams when there is an accident, for example.

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