三、閱讀測驗
                                                                 Volcanoes
      A volcano is a hole in the ground through which molten rock and gas from under the surface of
Earth can escape. This escape – called an eruption – happens when the pressure of the molten rock
and gas is so great that it must find a way to the surface. The word “volcano” comes from the name
Vulcan, who was the Roman god of fire.
      When a volcano    erupts   , lava -molten rock, gas, and ash shoot out of the hole in the ground. The
lava flows down and destroys everything in its way. The gas and ash go into the sky. Sometimes,
as in the recent volcanic eruption in Iceland, there is so much ash that airplanes cannot fly through it.
The jet engine works by sucking in air. If it sucks in too much ash, it cannot work.
      There are about 1,500 volcanoes in the world. Most are not active. Some are erupting
continuously. Most volcanoes are in a belt of land called the Ring of Fire. This is an area of land
and water that encircles the Pacific Ocean.
      One of the most famous volcanoes is Vesuvius in Italy. When it erupted in 79 AD, it destroyed
the city of Pompeii.
                                                                                                                      (Adopted from: Hanlin)

molten 熔化的 surface 表面 ash 灰;灰燼 suck 吸 encircle 環繞

【題組】34. The word “volcano” comes from _____.
(A) Iceland
(B) Pompeii
(C) the Ring of Fire
(D)the name of a Roman god