Hard work is my business card.

British poet Shelley said, "Spring, summer, autumn and winter are all poems." Yes, all seasons have their own charm.

I will be close to nature every season. It's autumn now, and I remember one thing: I have an appointment with autumn. Ok, let's go to the appointment now!

Outside the classroom, autumn rain kissed my face. It doesn't have the lightness of spring rain, the coldness of winter snow and the madness of summer rain. Only freshness. It's not bright now, and there are some raindrops on the lens. It's hard to tell whether it's rain or fog.

Lang Lang's reading voice came from the teaching building behind him: "Spring is like a newborn doll, new from head to toe, and she is growing;" Spring is like ... "Although autumn is not like Zhu Ziqing's spring: like a doll, like a girl, like youth, autumn is like a postpartum mother-quiet and serene.

Looking around, the house in the distance is still sleeping. Look carefully, there is a lamp swaying in the morning fog. Is it because the writer saw such a beautiful scenery in the early morning, gave up the warmth in the bed and wrote beautiful notes for autumn like me?

I'm tired of standing, let me sit down for a while! Ah, my ass suddenly felt a chill. Alas! Forget it, get up and go!

I was walking in the campus and suddenly stopped: Ginkgo biloba leaves turned yellow, and a gust of wind blew, and some leaves began to twist, while others simply broke away from the trunk and danced with the wind. These autumn "butterflies" fell to the ground mysteriously in the rain. I walked over, gently picked up a fallen leaf and held it carefully in my hand. Although the leaves are small, they are so heavy, and the fallen leaves return to the roots, telling the affection for the roots. This reminds me of my mother: "mom, please believe that I will grow up with the little ginkgo tree in this beautiful campus in three years." I put Ginkgo biloba leaves in the book, so that it can witness my promise to my mother.

After bidding farewell to this ginkgo friend, I continued to walk. At this time, it rained harder and the wind came to join in the fun. Recalling the spring breeze, it was my mother's touch; Xia Feng, that's my sister's teasing; Winter wind, that's what dad cares about. Only autumn wind is grandma's love. She has no voice, but sings about the yellow fields. Yes, grandma's love is self-evident.

It is getting late. I should go back.

Autumn, please remember: we will meet again next year!

Low-carbon life refers to reducing energy consumption in daily life as much as possible, thus reducing carbon dioxide emissions. Low-carbon life is an attitude, not an ability for us ordinary people. We should actively advocate and practice low-carbon life. Mainly focus on power saving, water saving, fuel saving and solar terms. There are many low-carbon behaviors, besides planting trees, you can also buy goods with short transportation mileage, such as climbing stairs, and so on.

Low carbon also includes low carbon economy. It is an economic model based on low energy consumption, low pollution and low emission, and it is another great progress of human society after agricultural civilization and industrial civilization. The ideal form of low carbon economy is to fully develop sunshine economy, wind energy economy, hydrogen energy economy and biomass energy economy. Its essence is the problem of high energy utilization efficiency, clean energy structure and pursuit of green GDP, and its core is the fundamental change of energy technology innovation, system innovation and human survival and development concept.

Low-carbon life starts with me. In fact, we can use the traditional clockwork alarm clock instead of the electronic alarm clock every day; Turn off the computer power during lunch break and after school; Once the lights and air conditioners are not used, turn them off; Once the mobile phone is charged, unplug the charging plug immediately; Use less paper towels and pick up handkerchiefs; Replace the 60-watt light bulb with an energy-saving lamp; Riding a bike instead of driving, or walking ... In addition, the harm caused by disposable products is particularly serious. We can use disposable toothbrushes, disposable plastic bags and disposable cups as little as possible, because the oil used to make them is also disposable.

Now, I want to use the knowledge I learned in chemistry to promote "low carbon". 199 1 put forward the concept of "atomic economy". It refers to transforming raw materials into target products as much as possible in the process of chemical synthesis. The atomic utilization rate of the combination reaction, addition reaction and polyaddition reaction we have learned is 100%, which is the most ideal effect of atomic economy. At present, the synthesis of CH3OH from CO and H2 is a reaction in line with atomic economy. Green chemistry advocates the use of non-toxic and harmless raw materials under non-toxic and harmless reaction conditions, which is "atomic economy" and environmentally friendly. To do this, we must pay attention to the improvement of synthesis efficiency.

In this respect, catalyst plays an important role, which can reduce the activation energy of chemical reaction, speed up the reaction, reduce the reaction steps and cause no pollution. Among them, biocatalysis such as enzymes has the advantages of mild conditions and high conversion rate. This has played a huge role in ensuring a low-carbon life. Therefore, looking for catalysts and improving atom utilization rate are effective measures to promote "low carbon".

Finally, I hope friends all over the world can start from the small things around them, take low-carbon actions and enjoy the fashionable life.