剑桥雅思Test阅读Passage真题解析
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剑桥雅思7T e s t4阅读P a s s a g e1真题解析剑桥雅思7，第四套试题，阅读部分Passage 1，阅读真题原文部分：
READING PASSAGE 1
You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1below.
Pulling stings to build pyramids
No one knows exactly how the pyramids were built. Marcus Chown reckons the answer could be hanging in the air.
The pyramids of Egypt were built more than three thousand years ago, and no one knows how. The conventional pic ...