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    Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”
    The idea that humans could change the planet’s climate may be counter-intuitive(与直觉不符的), but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released（释放）into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.
    Of course, the planet’s climate has always been changing thanks to “natural” factors(因素) such as changes in solar or volcanic（火山的）activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.
    Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change: “If some newly discovered factor can account for the climate change, then why aren’t carbon dioxide（二氧化碳）and the other greenhouse gases producing the warming that basic physics tells us they should be?”
    The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.
    小题1: In most scientists’ opinion, the global warming is mainly caused by ________.
    A．solar activity
    B．volcanic activity
    C．the Earth’s going around the sun
    D．human activity
    小题2:The text is developed by ________.
    A．giving typical examples
    B．following the order of space
    C．analyzing a theory and arguing it
    D．comparing and finding differences
    小题3:The underline word “identical” means ________.
    A．totally different
    B．exactly the same
    C．extremely important
    D．relatively independent
    小题4: Which of the following can be the best title?
    A．Are All the Scientists Really Scientific?
    B．Where Is Global Warming Leading Us to?
    C．Are Humans Definitely Causing Global Warming?
    D．What’s Relation of Global Warming and Greenhouse Gases?
    小题1:D小题1:C小题1:B小题1:C
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    小题1:..
    A．assignmentB．question C．suggestionD．solution
    小题2:.
    A．sorryB．regretfulC．thankfulD．responsible
    小题3:.
    A．gave inB．handed inC．put off D．called off
    小题4:..
    A．strongB．kindC．differentD．humorous
    小题5:..
    A．oftenB．usuallyC．seldomD．ever
    小题6:..
    A．because B．though C．as D．since
    小题7:..
    A．encouragedB．discouragedC．cheeredD．praised
    小题8:..
    A．handB．faceC．earD．leg
    小题9:.
    A．reducedB．ruinedC．inspiredD．used
    小题10:..
    A．comfort B．praise C．sorrowD．coldness
    小题11:..
    A．searchB．questionC．meetD．protect
    小题12:..
    A．endedB．succeeded C．continuedD．failed
    小题13:..
    A．brokeB．pulledC．lookedD．bent
    小题14:..
    A．hisB．yours C．my mother’sD．my father’s
    小题15:..
    A．disappointed B．annoyedC．tiredD．touched
    小题16:..
    A．forgotB．regrettedC．recalledD．understood
    小题17:..
    A．handB．book C．lesson D．gift
    小题18:..
    A．rather thanB．more than C．anything but D．nothing but
    小题19:..
    A．I’m sorryB．Take careC．I’m all rightD．Thank you
    小题20:..
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    科目：高中英语 来源：不详 题型：阅读理解

    Today, roller skating (滑旱冰) is easy and fun. But many years ago, it wasn’t easy at all. Before 1750, people never tried skating on wheels. That changed because of a man named Joseph Merlin. Merlin’s work was making instruments. In his free time he liked to play the violin. Merlin was a man with many ideas and many dreams. People called him a dreamer.
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    A．before the year 1750B．before the invitation
    C．because of Joseph MerlinD．because it was dangerous
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    C．he was a talented violinist D．he always made people’s dreams come true
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    A．a strange man
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    科目：高中英语 来源：不详 题型：阅读理解

    Scientists are trying to make the deserts into good land again. They want to bring water to the deserts， so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time.
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    科目：高中英语 来源：不详 题型：阅读理解

    Islamabad, Pakistan, June 22nd---Two mountain climbers surprisingly survived (幸免于) a fall of over 500 feet on the 25,530-foot mountain in Pakistan, Saturday. The two climbers were climbing an ice-covered wall of the mountain when they suddenly lost their footing and fell about 560 feet to a narrow snow-covered ledge(悬崖突出部分) below. “We were lucky that ledge was there,” said the climbers, “Otherwise, we would have fallen over 2,000 feet.” If the ledge had not been there, the two climbers almost certainly have met their death. “It’s a wonder,” the climbers said, “that we landed on the ledge, and the snow was loose enough to cushion(缓冲) our fall. We’re thankful that we survived.”
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    A．they wouldn’t have fallen downB．they would have them wounded
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    小题3: How high was the ledge from the foot of the mountain?
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    a. talked with a reporter           b. lost their footing 
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    A．b-d-c-e-aB．e-d-b-c-aC．e-b-d-c-aD．a-c-b-d-e

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    科目：高中英语 来源：不详 题型：阅读理解

    It is the season for long lines and frayed(紧张的) nerves. Here are some ways to survive a holiday flight.
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    Weigh your options
    Not knowing what you’re going to pay for your luggage is annoying. So calculate your overweight-luggage fees at home. You can find the fees out in advance by visiting new site Luggage Limits, which provides the latest information on more than 90 airlines.
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    The rates for renting a car at the airport have more than doubled over the past year because rental lot inventories have decreased dramatically(现住地). True, renting at the airport is convenient, but it’s just not worth it anymore. Unless you really need a car, take public transportation, hop a cab, or beg a friend to pick you up at the airport instead.
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    A．Unnecessary.B．Expensive.C．Inconvenient.D．Wonderful.
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    A．deal with crisisB．reduce the time for leave
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    小题4: What’s the best title for the passage?
    A．Five ways to survive a holiday flight.B．Good seasons for flight.
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    科目：高中英语 来源：不详 题型：阅读理解

    After The Super Girl was shown on TV, it was loved by millions of people, especially the young people. It becomes a hot topic among people. Here are some of their opinions
    China is a developing country and women now show their abilities as freely as men do. The modern world is a stage for them to show who they are and what they want.
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    科目：高中英语 来源：不详 题型：阅读理解

    Everyone knows the smart black-and-white dog that sits on top of a red doghouse with his best friend---a bird called Woodstock.
    Created by the American cartoonist Charles Schulz in 1950, the clever dog is loved by generations of kids and adults. He speaks more than 20 languages and appears daily in 26,000 newspapers around the world.
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    科目：高中英语 来源：不详 题型：阅读理解

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    Regent Home Alaska Cruises
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    A．It's the name of a typical cruise ship．B．It's a popular hiking route in Alaska．
    C．It's the name of a famous tourist company．D．It's a body of water with beautiful scenery．
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    A．Alaska Inside Passage Cruises．B．Gulf of Alaska Cruises．
    C．Regent Home Alaska Cruises．D．None of the above．
    小题3:Which of the following cruises repeat its routes?
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    小题4:What's the purpose of this passage?
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    B．To introduce the ways of traveling in Alaska．
    C．To attract tourists to cruise vacations in Alaska．
    D．To offer advice to people traveling in Alaska．

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