与古埃及有关的词: ancient Egypt, civilization,Nile River, pharaoh,pyramid, Rosetta Stone, pyramid, Great Sphinx, mummy, thewonders of the ancient world 古埃及人的贡献: calendar, makeup,number system，painting.sculpture, jewelry, furniture 公元和公元前:A.D.,B.C a glimpse of 瞥见 used to do 过去常常做 keep track of 记录 up and down 来来往往 by accident 偶然地 in front of... 在......前面 begood for适于;有益于 for a long time 很长一段时间 believe in 相信;信任 make sure 确保;确信 no matter how引导的让步状语从句，例如: They always made thepharaoh appear young and fit-no matter how he or she looked inreal life! 虚拟语气的用法，例如: Their tombs and temples would havetoppled without it. that 引导宾语从句时可以省略，例如: People believed the pharaohwas a god on Earth.