因为在资源日益短缺、生态环境受到挑战的今天，发展低碳经济、倡导低碳生活、建设低碳城市正在成为国际上普遍认同的经济社会发展模式。

假如你是李华，你的美国朋友Chris给你发邮件来，向你询问你校正在开展的低碳生活活动情况。请写回信。主题为行动改变世界。尽量少坐公车，步行，骑单车；使用电子贺卡；使用双面纸；节约水，电……

注意：1.开头和结尾部分已写好。

2.所写内容必须包括提示中的信息。可适当增加谈论话题时经常用到的话语，所写内容连贯。

3.词数：70个左右。

Dear Chris,

As you said in the e-mail that my school are launching the low carbon living activity now.

And I_________________________________________________________

____________________________________________________________________________________________

_

____________________________________________________________________________________________

_____________________________________________________________________.

Yours,

Li Hua

Here’s useful book . book is written by Bill Gates.

A. a; The B. a; A

C. an; The D. an; A

---When shall we start, today or tomorrow?

--- is OK. You decide.

A．Neither B．Both

C．Either D．None

Mr. Black is strongly _____ keeping animals in the zoo, because he thinks animals should also have the right to enjoy freedom.

A. up B. down C. for D. against

--- A second-hand computer is much than a new one.

---That’s true, but I’d like a new one.

A. better B. cheaper C. bigger D. smaller

---Do you think yesterday’s math problem was difficult?

---Yes. I could work it out.

A．hardly B．easily C．finally D．nearly

---Why are you still here? It's so late.

---Because I my work. Don't worry. It's almost done.

A. wasn't finishing B. wouldn't finish

C. haven't finished D. won't finish

--- Is he still raising money for charity?

---Yes. He never _______hope of helping poor children.

A. gives up B. gives out

C. gives back D. gives away

---You should your teacher’s advice if you want to improve your science.

---That sounds great.

A. get B. catch

C. follow D. hear

--- are the Winter Olympic Games held？

---Every four years.

A. How far   B. How often 

C. How soon D. How long