Sentinel­1A, which will operate with a second satellite, Sentinel­1B, to be launched next year, has high­tech instruments that will allow it to record radar images of Earth's surface, even when the skies are cloudy or dark. As part of the Copernicus program, there will be 17 launches over the next decade.

　　5．For what purpose was the Sentinel­1A satellite sent up into space?

　　A．To improve observation of the earth.

　　B．To search for some missing planes.

　　C．To download free valuable images.

　　D．To predict floods and earthquakes.

　　6．According to Volker Liebig, the Sentinel­1A satellite ________.

　　A．can locate the missing Malaysian Airlines jet

　　B．has advanced but limited functions

　　C．may cause some safety problems

　　D．doesn't work on cloudy days or at night

　　7．How does the Copernicus project benefit farmers?

　　A．By supplying data on soil conditions.

　　B．By calculating the loss of costly floods.

　　C．By drilling oil wells in proper places.

　　D．By controlling the risk of potential fires.

　　8．What does the last paragraph mainly tell us about the Sentinel­1A satellite?

　　A．Its operation.

　　B．Its appearance.

　　C．Its instruments.

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