假定你是新華中學的學生李華，你校將在下周末舉辦以"踐行低碳生活，共創美好家園"為主題的展覽，請跟學校的美國外教Sam寫一封邀請信，請他與你一起去觀展。內容包括：
1.展覽的時間和地點
2.對該展覽內容的介紹
3.發出邀請
注意：
1.字數在100到120之間
2.可以適當增加細節，以使行文流暢

【考點】提綱作文．

【答案】Dear Sam，
I am writing to tell you about  an exhibition to be held by my school with the theme of "practicing low-carbon life and creating a better home" .
The exhibition will be held in the school hall next weekend，lasting from 8 am to 5 pm.It will present over 50 pieces of photos taken by our students about how to practice low-carbon life.During the exhibition，the teacher will teach us more knowledge about protect our planet.Through the exhibition，students will raise the awareness of environmental friendly ways of life.
I sincerely invite you to visit the exhibition with me.Hopefully，you will like it.
                                                                                                                                             Yours，
                                                                                                                                            Li Hua