The Mid-Autumn Festival fall on the 15th of the eight month in Chinese lunar calendar. As one of the traditional Chinese festivals, it has been enjoyed great popularity in our country. Usual, no matter how far away or how busy we are, we will try to come to home for the celebration. The moon that night looks the brighter in the whole lunar month. That we love most is the moment when we enjoy the full moon together. With the beautiful moon up in night sky, we sit together, eating mooncakes and fruit and sharing their stories. In addition to these traditional activity, we have a variety of choices such as travelling or visiting our relatives or friends.

During the     1     (twenty) century , the temperature of the earth     2     (rise) about one degree Fahrenheit. It is a rapid increase when compared    3     other natural changes .

There is no doubt    4    the earth is becoming warmer. Scientists believe     5     is human activity that has caused this global warming. The increase in the earth's temperature is due to the    6     (burn) of fossil fuels. Some byproducts of this process     7     (call) “greenhouse” gases, the most important one of    8    is carbon dioxide. Without the “greenhouse effect”, the earth would be thirty-three degree Celsius    9     (cool) than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere, causing the global temperature     10     (go) up.