____ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunwise.

A、Freed B、Freeing C、To free D、having freed

 

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科目：高中英語(yǔ) 來(lái)源： 題型：

____ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunwise.

  A. Freed     B. Freeing     C. To free     D. having freed

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科目：高中英語(yǔ) 來(lái)源： 題型：

____ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunwise.

A、Freed    B、Freeing  C、To free  D、having freed

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科目：高中英語(yǔ) 來(lái)源： 題型：

____ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunrise.

A、Freed B、Freeing       C、To free        D、having freed

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

We learned that fossil fuels were formed before and during the time of the dinosaurs（恐龍）. We are using up the fuels. We can save fossil fuels by protecting and finding ways to use energy from “endless sources”, like the sun and the wind. Some people suggest that we should start using hydrogen（氫）.

Hydrogen is a colorless, smell-less gas that takes up 75 percent of the whole universe. Hydrogen is found on earth only in mixture with other elements such as oxygen, carbon and nitrogen. To use hydrogen, we must separate it from these other elements.

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56. We can get hydrogen from the following EXCEPT ______ according to the passage.

A. natural gas    B. water                     C. creature in the sea          D. bacteria

57. Why could the hydrogen be used widely in the future?

A. Because it is of high quality.               

B. Because it has no pollution. 

C. Because it is easy to get it from all kinds of ways.      

D. Because there are much hydrogen existing in the universe.

58. The passage mainly tells us ________.

A. the usage of a new energy source        B. the future energy sources

C. a new energy source －h(huán)ydrogen        D. how to get the energy source

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科目：高中英語(yǔ) 來(lái)源：2010年海南省高二上學(xué)期第二次月考英語(yǔ)卷 題型：單項(xiàng)填空

       from endless homework on weekends, the stuclents now find their own activities to enjoy.

A．Freed

B．Freeing

C． To free

D．Having freed

 

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