(1) Please write a short paragraph according to the following materials to introduce what a "low-carbon life" is. (within 50 words) (3 points)
Material 1: Greenhouse gases make the earth "fever". With the deepening of industrialization, a large number of greenhouse gases, mainly carbon dioxide, are emitted, leading to global temperature rise and climate change. Global warming makes Antarctic glaciers begin to melt, which in turn leads to sea level rise. By the end of this century, the sea level may rise by 1.9 meters, far exceeding previous expectations. The earth's "fever" has also caused great harm to human health. The rising water temperature leads to the rapid propagation of cyanobacteria, which will pollute natural lakes from the water supply system, thus causing diseases such as digestive system, nervous system and skin. Low-carbon life has become a lifestyle that human beings urgently need to establish.
Material 2: Low carbon means that greenhouse gas (mainly carbon dioxide) emissions are getting lower and lower. "Low carbon life" has become the knowledge of more and more people. Its advocacy reflects human concerns about the future caused by climate change. Climate problems such as global warming make human beings have to consider the current production and lifestyle, optimize and limit some production and consumption behaviors, so as to achieve the purpose of reducing carbon emissions. The proposal of "low carbon life" not only tells people what they can do to reduce carbon, but also tells them what they can do.
Material 3: Ren Guanping, secretary general of the Chinese Society of Environmental Sciences, said: "Energy conservation is the biggest carbon reduction."
"Low-carbon life" means:
(2) Draw up two slogans for this activity. (4 points)
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(3) At the class meeting with the theme of "Low-carbon life, what can we do", I recommend you to be the host. Please write down your opening remarks. (About 80 words) (3 points)