一，假定你是李华，最近你们班就“低碳”生活方式进行了讨论，你的美国朋友Jack来信向你询问讨论情况，请你

Dear Jack,
Thank you for your letter asking about our discussion on low carbon lifestyle. Here is something about it.
We can do a lot in our daily life to achieve the goal of living low carbon life. First, we‟d better turn off lights if possible and spend less time watching TV or surfing the Internet. Saving water also matters much. Besides, we should sort out the rubbish, hoping that we might recycle some, which will surely benefit us a great deal. In addition, we suggest using handkerchiefs instead of tissues so that we can prevent more trees from being cut down. More importantly, when we go out, walking, riding bikes or taking buses should be our first choice, which contributes to a cleaner world.

Dear Jack,

　　Thank you for your letter asking about our discussion on low carbon lifestyle. Here is something about it.
We should do something to protect our environment. At first，we should save water and
electricity.We shouldn't waste our water.So we use water again and again.If we leave our room,
we should turn off lights and computer timely.Second, we shouldn't throw the trash everwhere.
And we should separate the garbage processing.Next,we should use tissue less ,and use it
again and again.Finally,if we go out ,we can go on foot instead taking cars,we also can go out by bike and bus.
Best wishes,

　　Li Bing