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    Have you ever thought, “I wish I could take a year off and just travel around the world”? Well, three lucky American teenagers were able to do just that. The teens—two males and one female--got an all-expenses paid, yearlong hike to five continents.
    This trip didn’t include any five-star hotels or shopping funs. Eighteen-year-old Jamie Fiel from Keller, Texas, 17-year-old Arsen Ewing from Canyon, California, and 16-year-old Tyler Robinson from Lincoln, Massachusetts, didn’t expect fancy treatment. They signed up for the experience of a lifetime, which included hard work, often uncomfortable accommodations, and encounters with some of nature’s most dangerous animals and environments.
    Jamie, Arsen, and Tyler were among hundreds of high school kids nominated by their science teachers to take this trip. Earthwatch Institute sponsored (赞助) this adventure. Each year, Earthwatch employs thousands of volunteers worldwide to help with scientific research projects.
    The group went all around the world to get a close look at the most pressing environmental issues of our time. Their assignments were as varied as their locations, and included measuring and attending pink flamingos in Kenya’s Great Rift Valley, and tracking giant sea turtles in Costa Rica.
    As they worked with the Earthwatch scientists, Jamie, Arsen, and Tyler began to understand that we are at a critical moment in the life of our planet. Time for change is running out. As the teens went from country to country and witnessed different environmental dangers and challenges, they understood that solutions to important environmental issues start with the power of one person's actions. They realized that each of them can make a difference.
    小题1:These teenagers went on the journey around the world _____.
    A．to experience the most serous environmental problems on the earth
    B．to bring the kindness of America to the other parts of the world
    C．to go on sightseeing around the world
    D．to call on more teenagers to join Earthwatch Institute
    小题2:What’s true about their journey?  
    A．They had to pay for their journey on their own expense.
    B．They often had to move from one hotel to another.
    C．They had to take great pains to collect environmental information.
    D．They received a warm welcome every time they arrived at a new place.
    小题3: It can be inferred that Earthwatch Institute could be _____.
    A．an international university that takes in students from all over the world
    B．a TV station that makes programmes on the beautiful scenery of the earth
    C．a travel agency that organizes adventure trips specially for school children
    D．an organization that brings science to life for people concerned about earth’s environment
    小题4: What did they these teenagers learn from the journey?
    A．It was high time that people protected the environment.
    B．Long journey was not suitable for school children.
    C．It should take the whole world to help the children.
    D．Environmental problems can be solved if school children take part.

    小题1:A
    小题2:C
    小题3:D
    小题4:A

    小题1:根据短文第四段第一句可知：他们进行环球旅行的目的是亲身体验一些严重的环保问题。
    小题2:根据短文第二段可知：这次旅行没有五星级宾馆也没有购物的快乐，食宿不舒服，还常常会遇到危险。
    小题3:根据第三段最后一句及这次旅行所从事的活动推测可知：Earthwatch Institute是一个推广环保科学知识的一个组织。
    小题4:根据短文最后一段“…we are at a critical moment in the life of our planet. Time for change is running out.”推测可知：人们保护环境已刻不容缓。
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    小题1:How do the blue tits choose their nest?
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    D．The female chooses their nest.
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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

    In June, 2007, a group of students from eight high schools in Winnipeg, the capital of Canada’s Manitoba province, will begin test-launching (试发射) a satellite the size of a Rubik’s cube.
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    5. The best title for this passage may be        .
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    C. Space Co-operation                       D. Satellite Launching

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    科目：高中英语 来源：不详 题型：阅读理解


    E
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    Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
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    A.we have experienced temperature cycles since they began
    B.what caused ice to melt is still unknown
    C. the planet was much colder than it is now between 65,000 and 35,000 years ago, during which time temperature hardly changed
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    A. throws doubts on B. beats down on C. makes it clear D. makes light of
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    A. to lead up to the subject that ice melted during the 30,000-year-long ice age
    B. to describe what the weather was like during the ice age
    C. to compare climate nowadays with that of the ice age
    D. to explain what a temperature cycle is
    75. Which of the following best shows the relationship between ice, ocean currents and temperatures according to the text?
    A. Ice can easily slip into the ocean.
    B. Temperature and currents changed as a result of ice melting.
    C. Temperature changes lead to ice melting or water freezing, which in turn has an effect on ocean currents and temperature.
    D. Ice melted and then froze again due to temperature.

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