honorable judges, ladies and gentlemen, fellow students, good morning/afternoon:
i’m very glad to be here. my name is wangqihang.
i’m ten years old. i come from huanxi primary school. i’m in cla3, grade 5.
as a happy boy，i have many hobbies, such as sports, playing piano, singing, and drawing.
among them, travel is my favorist one. i have visited some other cities, like beijing, hainan, chongqing, guangxi, qindao, dalian and so on.
everywhere i went, i enjoyed the natural scenery and appreciated the human landscape very much.
not only that, i want to go abroad to take in the beauty of the custom of other countries in the future.
and i even dream about what the life will be when we are on planets other than our earth.
that is why i’m so interested in the following scientific report recently.
cherish what we are enjoying
it is a report about the new planet which holds possibility for life.
it shows that european astronomers have discovered a new planet, they name it gliese 581 c.
it is about 20.5 light years from our earth. they estimated the planet"s average temperature at between 0 and 40 degrees centigrade. it is orbiting the red dwarf star, gliese 581.
most important of all, it’s an earth-like planet. there might be mountin, sea and liquid water.
so the astronomers believe that it is potentially habitable.
however, gliese 581 c might be "tidally locked" to it’s sun-the dwarf star the way our moon is to the earth.
it means that it must always show its same face to its sun, and that while one side would be too fiercely hot to support life, the other side would be too cold.