照样子，做一做

例  了    飞了  

     子    口子 

     人 ____ 

    ____  ____ 

    Most people have flown a kite or have seen one ride and dip(下降）in strong spring wind. Not so many people know that kites were first made in China thousands of years ago. The ancient Chinese were making and flying kites even before they were writing.

    A long time ago, the Chinese made kites to use in wars. They would fly these war kites in the dark. The kites were fixed(固定）so that they made strange sounds. Men at war would hear these sounds and run away. They thought those strange sounds were made by gods in the sky.

    The ancient Chinese also flew kites to bring good luck and to make their crops grow rich and tall. Sometimes they tied long strings(细绳）and hooks(钩) to their kites. Then they would fly the kites over water, letting the hooks hang down to catch fish.

    The Chinese use sticks(树枝), strings and paper for their kites. Some of these kites look like animals or trees. Others look like birds or houses.

（不考虑Mg²⁺和Al³⁺的水解及水的电离所引起的离子总数的变化）

新航路开辟后，许多新的商品如美洲的烟草、可可和中国的茶叶等出现在欧洲市场上，香料等传统商品的交易量更是成倍上升。这表明（    ）