UNIT 1 CULTURAL HERITAGE 开启快乐学习之旅神秘的古埃及金字塔古埃及金字塔是奴隶制帝王的陵墓，最宏大的当为吉萨三座大金字塔。塔基呈方形，每边长 230 米，高 146 米，用 230 余万块巨石(每块平均重达 2.5 吨)垒成，国王墓室用一块400 吨重的石板垒成。整体规模雄伟壮观，设计科学，构造复杂，历时 30 年建成。古希腊时即被称为世界七大奇迹之一，1980 年被列入世界遗产名录。Built 4,000 years ago, the three great pyramids at Giza, in the Egyptian desert remain the most colossal (庞大的) buildings ever constructed.The pyramids were built by Egyptians under the order of the Egyptian leader, whose title was Pharaoh ( 法 老 ). There was a sequence ( 一 连 串 ) of Pharaohs around 2615 BC, with the Pharaoh Cheops who built the biggest thing ever built, the Great Pyramid, also known as Khufu. Cheops built a pyramid 770 feet on one side and 481 feet tall. How ancient builders managed to build these massive structures has never been fully answered but the effort clearly required brains and brawn (体力)．Was there engineering genius involved? Yes, there was. For example, when you're putting the block right at the top, how are you going to lug (拉) a block of stone that weighs several tons 480 feet up a structure? How are you going to do it, and how are you going to do it without leaving scratches ( 划痕) on all the rest of the structure? And how many people does it take to drag a block weighing several tons 480 feet up into the sky? Approximately, 2.3 million blocks of stone were cut, transported and assembled (垒砌) to create the Great Pyramid.The Pharaohs may have set out to build magnificent tombs for themselves, but in the end they created monuments to human potential. There's a universal message in the pyramids. The pyramids belong to Egy...
