四级练习2012.11.17
[audio]http://sound.yywz123.com/tingbbs/cet4/cet420121117.mp3[/audio]A pyramid is a very large structure with four side.(1)_______________________. Pyramids were built in many parts of the world. but the most famous are in Egypt. More than four thousand years ago. and Egyptian king, named Zoser had the first pyramid built. It was a burial tomb for him when he died. Zoser's Step Pyramid near Cairo was the world's first all-stone structure. Later kings built other pyramids.(2)_________________________.But Khufu outdid them all. He had the largest Pyramid build. It is the Great Pyramid. The Great Pyramid is over 450 feet high today and it was once highed.(3)__________________________. It takes about twenty minutes to walk all the way around the pyramid. To build the Great Pyramid 100,000 men worked for twenty years. The Indians of central America and Mexico also built pyramid. These pyramids,however,have flat tops. They also have steps on the side. The pyramid of the sun near Mexico city is larger at the base than any Egyptian pyramid.
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