2. 外语
  3. A lighthouse is a tall building. It has a big light at the top. It is usually built on a cliff (悬崖) or near a harbor (港湾). Peopl

A lighthouse is a tall building. It has a big light at the top. It is usually built on a cliff (悬崖) or near a harbor (港湾). Peopl

admin2012-01-14  85
问题     A lighthouse is a tall building. It has a big light at the top. It is usually built on a cliff (悬崖) or near a harbor (港湾). People on ships can see the light from far away. They know there is danger where the light shines (发光). They stay away from it.
    The first lighthouse was built in Egypt long ago. It was over 100 meters high and was made of white stone. On the top floor were rooms with open windows. Fires were burning in the rooms at night to warn (警告) ships they were near the harbor.
    Later, lighthouses were built in many places. Whole families lived inside them and made sure the oil light was burning.
    Today lighthouses have electric lamps and even horns. There is no need for anyone to live in them as the light or horn can be controlled automatically.
The first lighthouse used ______ to warn ships when they were near the harbor.
选项 A、fire
B、oil light
C、electric lamps
答案A
解析 短文中提到：晚问在这些房问里燃起火，火光警告着船只它们离港口很近了。因此答案为A。
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