日食

• 4 . use plastic plates specially made for observing solar eclipses
  四用专为观测日食而特制的观测胶片。
• Pay attention to the change of the light spot during the solar eclipse
  二在日食时，留意小光点的变化。
• Possible ways of observing the sun
  可行的观看日食方法
• Astronomers can calculate when there will be eclipses of the sun and moon
  天文学家可以算出何时发生月食及日食。
• When the moon goes in front of the sun , we have an eclipse of the sun
  当月球运行到太阳的前面时，我们遇到一次日食。
• Astronomers can calculate when there will be eclipses of the sun and the moon
  天文学家能计算出何时会发生日食、月食
• What is " solar eclipse "
  甚么是日食？
• Astronomers2 know the dates of eclipses and they are not afraid
  天文学家能预知日食和月食的日期，所以他们没有恐惧心理。
• The sun and solar eclipse
  太阳及日食
• Then , the sun or moon passes through the opening at the neck , ending the eclipse
  然后，太阳或月亮会经过颈上的口子，日食或月食结束。