假如你是李华，近期你校开展了以"Saving Our Earth"为主题的环境保护项目式学习，你的英国朋友Tom来信询问该活动的情况，请你给他写一封回信，内容包括：
1.本次项目式学习的目的；
2.谈谈你校为保护环境所采取的具体措施。
注意：
1.词数80左右；
2.可以适当增加细节，以使行文连贯；
3.开头和结尾已给出，不计入总词数。
Dear Tom，
I'm glad to know you are interested in our school's project-based learning with the theme of "Saving Our Earth"—————
Yours，
                                                                                                                                                    Li Hua

【考点】提纲作文；环境保护．

【答案】Dear Tom，
I'm glad to know you are interested in our school's project-based learning with the theme of "Saving Our Earth".
The purpose of project-based learning is to show the students the damage done to the earth and to raise the students' awareness of protecting the earth.
We should take some measures to solve these problems.It is necessary for us to go to school by bus or on foot，because it can reduce the waste air.What's more，we had better plant more trees.
Environmental protection is closely related to our daily life.So it is everyone's responsibility to protect our earth.
Yours，
Li Hua