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题型:阅读理解 题类:模拟题 难易度:普通

湖北襄阳四中2017届高三下学期英语第二次模拟考试试题

阅读理解

     Scientists have found living organisms trapped in crystals(晶体) that could be 50,000 years old.

     The organisms were found in a hot, but beautiful cave system in Naica, Mexico. These ancient life forms can be seen only with a microscope. Penelope Boston, who leads the Astrobiology Institute at NASA, the space agency of the United States, says the ancient microbes(微生物) were able to live by eating minerals such as iron.

     She spoke about the discovery recently at a meeting of the American Association for the Advancement of Science. If the findings are confirmed, they will show how microbes can survive in extreme conditions. Forty different kinds of microbes and some viruses were found in the underground area. The genetic structures of these organisms are 10 percent different from those of their nearest relatives.

     The caves in Naica are 800 kilometers deep. They were once used for mining lead. Before the miners began working in the caves, the area was separated from the surface and the outside world. Some of the caves are as big as the large religious centers built during Europe's Middle Ages. There are crystals covering the walls. The caves are so hot that scientists must wear special clothing to keep cool. The clothing keeps the crystals safe from human germs(病菌)or other damage. Boston said the researchers could only work for about 20 minutes at a time before they had to go to a room that was 38 degrees Celsius to cool down.

     NASA officials would not let Boston share her findings with scientific experts before last week's announcement. So scientists could not say much about the findings. But Norine Noonan, a biologist with the University of South Florida, said she believed them. "Why are we surprised?" Noonan asked. "As a biologist, I would say life on Earth is extremely tough and extremely colorful."

     Boston is also studying microbes commonly found inside caves in other countries, such as Ukraine and the United States. These microbes appear to be impossible to kill. Boston said they show how difficult life on Earth can be.

(1)、The existence of the ancient microbes relies on _______.

A、surrounding insects B、diverse plants C、eating minerals D、absorbing air
(2)、What can we infer about the caves in Naica from the passage?

A、The walls are covered by crystals. B、The temperature in the caves is quite low. C、The caves have been explored since they were formed. D、The environment in the caves is difficult to adapt to.
(3)、What is the biologist Norine Noonan's attitude towards the findings?

A、Critical B、Positive. C、Doubtful. D、Indifferent.
(4)、What's the main idea of the passage?

A、Living organisms bring hope to scientific research. B、Scientists Discover 50,000-year-old “super life” in Mexico. C、Microbes show great power to survive in terrible conditions. D、Caves provide living environment for living organisms.
举一反三
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阅读理解

    If you are travelling in Britain, besides so many world-class things to see and do in London, planning a day trip away from it can also be worthwhile.

    Stonehenge

    Stonehenge consists of a group of huge standing stones. The 5,000-year-old stones are one of the world's biggest mysteries that no one has figured out yet. While exploring Stonehenge, you can imagine wildly and decide for yourself how the stones came to be there and why. Although you can't touch the stones, you can walk among them and feel the changes of seasons.

    Windsor

    Most people visit Windsor to see Windsor Castle, where the Queen spends most of her time. The castle itself could keep you busy for days. The best way to appreciate Windsor Castle is to approach via the Long Walk, a straight road where there are no cars, but you might see some deer.

    Oxford

    Oxford is best known for its world-famous university. The large student population keeps the atmosphere young and fresh, though there's no shortage of history if you want it. 30 colleges make up the university itself. A tour of the colleges is a must—Harry Potter fans will recognize various locations used in the movies.

    Bath

    Founded by the Romans, who used the area's springs to create a spa retreat(水疗中心), Bath's now the best tourist attraction of Southwest England. Visitors never miss the Roman Bath Complex, which is divided into four main parts—the Bath House, the Sacred Spring, the Roman Temple and the museum, which displays fascinating finds from the historical ruins of the city.

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    “A good book might clarify something you knew little about, transform your world view, or move you in ways you didn't think possible. The Soul of an Octopus(章鱼)delivers on all three, ”the magazine New Scientist commented.

    After writing about birds, pigs and tigers, US naturalist Sy Montgomery decided to choose these many-footed animals as the subject of her latest book, The Soul of an Octopus: a surprising exploration into the wonder of consciousness.

    “Here is animal with poisonous liquid like a snake,a beak(喙)like a parrot,and ink like an old-fashioned pen. It can weigh as much as a man and extend as long as a car, yet it can pour its baggy; boneless body through an opening the size of all orange. It can change color and shape. It has a tongue covered with teeth. It can taste with its skin.” Montgomery explained to the National Geographic on why octopuses inspired her.

    What Montgomery is able to show in The Soul of an Octopus is that octopuses are creatures who exhibit personality, intelligence and emotion, despite having nervous systems completely different from our own. She uses different experiments to show that they possess consciousness as well as individual personalities. For example, based on her research, she finds out that Octavia, an octopus caught in the wild, is friendly and good at multi-tasking. And Kali, another octopus,who has been living at the New England Aquarium, is playful and loves exploring.

    Montgomery is a good storyteller. Through her study of, and communication with, these extraordinary creatures she shares what she learns from both science and her experiences. Her skillful writing presents facts together with personal description, which makes the book very informative but easy to read.

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    OK, so it's not a real war but the U. S. and China are at the beginning of a trade war thanks to President Trump's policy. The Chinese government raised $34 billion in new duties on goods exported from the U.S. last week in answer to President Trump's unwise tariffs(关税) of $34 billion on Chinese goods.

    Farm and seafood-producing states are going to be hit hardest by China's new tariffs on U. S. goods. States where cars are made and shipped to China are on the hook as well.

    In terms of value, some 38 percent of products on the tariff list are agricultural, including soybeans, sorghum, tobacco and meat. That's nothing like good news for farm-belt states, primarily in the Midwest like Iowa.

    A wide range of seafood is on China's tarifflist. That could hurt fishery workers in Alaska and lobster(龙虾) harvesters in Maine. Alaska, for example, exported nearly $lbillion worth of seafood to China. "China is a major market for Alaska seafood," said Alexa Tonkovich, Executive Director of the Alaska Seafood Marketing Institute. "The seafood industry directly employs nearly 60,000 workers in Alaska each year and directly employs more workers than any other private industry."

    And automaking States, particularly in the South, are also at risk. Some 24 percent ofproducts on the list- in terms of value-are cars, trucks and other vehicles. Michigan alone exported $1.7 billion worth of motor vehicles and vehicle parts to China in 2017. Other states being affected include South Carolina, where BMW makes SUVs for both the U.S. and export, and Alabama, home to Mercedes-Benz, Toyota, Honda and Hyundai factories.

    This round of tariffs spares some industries, like commercial aircraft. Washington State could breathe a sigh of relief, which is home to Boeing. It also, for the moment, skips tariffs on chemical products.

    Alexa Tonkovich has warned the U.S. government that the trade war could risk jobs, reduce industry profits, and cause higher prices for consumers in the U.S!

阅读理解

    For many creatures, the ocean is a terrifying place. Several marine animals have declined as a result of overfishing and pollution. But cephalopods(头足动物) — a type of invertebrate(无脊椎动物) that includes octopuses, cuttlefish, and squid, have seen a dramatic increase in their numbers over the past 60 years.

    Zoe Doubleday, a scientist at the University of Adelaide, in Australia, conducted a study of cephalopods recently. She points out that their population rise is due to the animals' unique traits.

    The creatures can change their color and body shape. They are fast-growing and live for only one or two years. "This allows them to adapt to changing environmental conditions more quickly than other marine species," Doubleday says.

    "Rising sea temperatures may be speeding up the animals' life cycle. They may be growing faster and producing more young."

    Cephalopods live in all of the world's oceans. They can be found in waters from the freezing polar regions to the warm tropic regions. Because they adapt so easily to their environment, the animals are called "the weed of the sea".

    Will octopuses, cuttlefish, and squid take over the world one day? Some people may wonder. According to Doubleday, that is unlikely. The rise in cephalopod populations could slow down if the animals run out of prey(被捕食的动物) and start feeding on one another. Overfishing could also have an impact on their numbers.

    For now, the cephalopod population boom is good news for them and some other sea creatures. "Increases in cephalopod populations could benefit predators(捕食性动物) such as marine mammals and seabirds, which rely on cephalopods for food," Doubleday says.

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