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    The airplane came in that field. 【查看更多】

     

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    　　Last July, my parents and I went to visit my aunt and uncle in Seattle, a city on the northwest American coast．Dad did some research and had no difficulty in finding us cheap tickets online．

    　　On the day of our flight, we had to wake up very early．When we checked our bags in, we found that one bag weighed too much, so we had to pay a fine．After that, Dad insisted that we go and have some breakfast at the airport restaurant．We had a lot of fun watching many different people there．Then we realized it was getting late, so we rushed to the gate．It took one hour for everyone to get on the plane, but finally the door was shut and we were on our way!

    　　I think my favorite experience during our trip was our visit to Mount Rainier, a volcano near Seattle．It was nothing like I had expected．Before we left, my aunt lent us hats to protect us from getting sunburned, so I supposed that it would be very hot．Imagine my surprise when we drove up the mountain and I discovered the top was covered in snow and ice!

    　　My uncle led us to a small path beyond the main trails to increase our chances of seeing wildlife．We walked over a small hill, and suddenly before us there appeared a field of snow．Small wild flowers grew up through the snow; underneath the snow we could hear rushing water－a small stream．Little animals stood still to avoid being noticed; tiny birds rose into the air．It was the most beautiful sight that I'd ever seen．

    (1)

    What ticket did the father buy for the family?

    [　　]

    A．

    Bus．

    B．

    Ship．

    C．

    Train．

    D．

    Airplane．

    (2)

    Why did they pay a fine?

    [　　]

    A．

    Because they got up late．

    B．

    Because they didn't wait in line．

    C．

    Because they came to the airport late．

    D．

    Because their bag was overweight．

    (3)

    What was the writer's most impressive experience?

    [　　]

    A．

    The flight to Seattle．

    B．

    The breakfast in the airport．

    C．

    The visit to Mount Rainier．

    D．

    The discovery of a small stream．

    (4)

    Why did they choose a small path instead of the main trails?

    [　　]

    A．

    To enjoy more of the wildlife．

    B．

    To take a shortcut to save time．

    C．

    To avoid the snowy road．

    D．

    To avoid being attacked by animals．

    (5)

    Which of the following is NOT true according to the article?

    [　　]

    A．

    Seattle is on the northwest coast of America．

    B．

    They bought their tickets in a booking office．

    C．

    They waited for a long time before getting on the plane．

    D．

    The hats were to help protect them from getting sunburned．

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    We're nearing the peak of the 11-year solar cycle, so double-check your GPS and watch where you're going.

    On Thursday, the sun suddenly gave off a massive solar flare. Solar flares can disrupt(使中断) radio communications, including devices that use Global Positioning System technology, such as cell phones, airplanes and car navigation（导航） systems.

    So if you're relying on your GPS for driving directions, to find your location on your phone's mapping tool or for any other purpose, have a backup navigation system handy, such as a printed map. Even more importantly, pay close attention to where you are and where you're going. Don't rely solely on your GPS to give you directions.

    In 2006, research from Cornell University proved that solar flares can cause GPS devices to lose signal. This can cause these devices to temporarily misrepresent your location or otherwise malfunction. "If you're driving to the beach using your car’s navigation system, you'll be OK. If you're on a commercial airplane in zero visibility weather, maybe not," said the researchers and they warned that after 2011 there would probably be lots of GPS disruptions.

    In addition, solar flares can disrupt power systems. This week, National Geographic reported: "Under the right conditions, solar storms can create extra electrical currents in Earth's magnetosphere -- the region around the planet controlled by our magnetic(磁的) field. The electrical power grid（电网） is particularly likely to be affected by these extra currents, which can go into high-voltage transmission lines, causing transformers to overheat and possibly burn out." Across the nation, electric services and grid operators are preparing to respond to such problems.

    A number of such blasts are expected over the next three to five years -- and the biggest flares are yet to come. This week's flare registered M9.3, about the highest level in the medium category. Larger flares that fall into the "X" category can cause global radio blackouts, but large M-class flares also can cause radio disruptions.

    This is one of a series of recent chain reactions of severe space weather, as the solar cycle approaches solar maximum in 2013. Other major flares came in February and June, and more may follow. Remember to keep those printed maps handy.

    72. ________ can help you better if massive solar flares break out.

    　　　 A. The phone’s mapping tool.

    　　　 B. Global Positioning System.

    　　　 C. Car navigation systems.

    　　　 D. The printed map at hand.

    73. The underlined word “malfunction” refers to ________.

    　　　 A. operate smoothly.

    　　　 B. fail to run properly

    　 C. crash as directed

    　　　 D. manage appropriately

    74. How many major flares have broken out according to the passage?

    　　　 A. Once　　　　　　　

    　　　 B. Twice　　　

    　　　 C. Three times　　　　　　

    　　　 D. Four times

    75. Which will probably be the most suitable title?

    A. Recent solar flare may disrupt your GPS

    　　　 B. 2013, the solar cycle approaches maximum

    　　　 C. Cornell University’s research on the solar flare

    　　　 D. Never rely on your GPS for directions any longer

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