楊柳

The flute （長笛） is a very old kind of instrument. Ancient Greeks played flutes. Those flutes were made of wood. They had a few finger holes. Now flutes are made of metal. These flutes have holes and keys for the players to press while they blow into a mouthpiece.

A player holds the flute up to his mouth and straight out to the right. The air moves through the flute. This makes a musical sound. The player presses different keys on the flute to make different musical sounds or notes.

A short flute can make a very high sound. The bass flute makes a lower sound. Sometimes flutes are played alone， without other instruments.

根據(jù)短文內(nèi)容，回答下列問題。

1. What is the main idea of the text？

A. A brief introduction of flutes. B. Flutes play very low notes.

C. Ancient Greeks played flutes. D. The invention of flutes.

2. What do people use the holes and keys of the flute to do？

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3. What kind of sound does a short flute make？ What about a bass flute？

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