Question

【题目】七选五
People have been making and flying kites for about 2,000 years. Some historians believe it the ancient Chinese may have started kite flying 2000 years ago. It is still a popular hobby in China, Japan and Korea and in other countries of the Far East where beautifully decorated appear in different colors.
Simple kites are made by crossing two sticks and covering them with paper or cloth. Then you attach a string at the end. More expensive kites have frames made of fiberglass, plastic or aluminum. The name comes from a graceful bird called kite.
A flat kite is the oldest and simplest type of kite. It flies because air flows over and under the kite's wing. The pressure under the wing helps the kite lift into the air.
Early scientists sent kites up into the air to measure temperature at different heights. In 1752, Benjamin Franklin used a kite to prove that lightning was a form of electricity. He attached a metal key to the string of a kite. When lightning hit the kite, electricity passed down the string and Franklin got an electric shock. It was a very dangerous experiment that you shouldn't copy.
Kites were also used to develop airplanes. The Wright Brothers experimented with kites before they flew the first airplane. In World War I the Germans developed a large kite that could transport people to a submarine. Kites were also used to carry radio signals over long distances.
Today most people fly kites as a hobby. Kite festivals are organized in many cities in all parts of the world.
A. Kites are made in many different sizes, colors and shapes.
B. flying kites is great fun and it is easy if you know some secrets.
C. Kites have also been used in experiments.
D. No one knows for sure who invented the kite.
E. In Japan families fly fish kites on Children's Day, May5th.
F. Stories of kites were brought to Europe till the end of the 13th century.
G. In the past, kites were sometimes used to take pictures in wars.

Answer 1

【答案】D；A；B；C；G
【解析】本文为介绍说明文。文章介绍了风筝的起源及发展历史。

①根据下文的Some historians believe it the ancient Chinese may have started kite flying 2000 years ago.（一些历史学家认为古代中国人也许在2000年前就开始放风筝了）可知，此处指“没有人确切地知道谁发明了风筝”。文中may“也许”是关键词。故选D。

②根据下文的对不同类型的风筝构成描述可知，此处指“风筝有不同的大小、颜色和形状”。故选A。

③根据下文的对风筝能放飞到空中的原理描述可知，此处指“如果你知道了其中的奥秘，放风筝是很好玩、很容易的”。故选B。

④根据下文中的Early scientists sent kites up into the air to measure temperature at different heights.可知，早期的科学家也使用风筝去做测试。故选C。

⑤根据下文的In World War I the Germans developed a large kite that could transport people to a submarine. 可知，此处指“风筝也被用于战争之中”。关键词为选项中的in wars。故选G。