假设你是李华，你看到美国留学生Jason在网上发帖，希望有人能帮助他提高普通话 （Mandarin） 水平，他可以教英语作为回报。请给他写一封电子邮件，内容包括：
 1.表达给他提供帮助的意愿；
2.说明自己能胜任的理由（至少两点）；
3.提出自己学习英语的具体需求。
注意：
1.词数100左右；
2.可适当增加细节，以使行文连贯；
3.文中不得透露个人姓名和学校名称。
Dear Jason，
____________
Yours，
Li Hua

【考点】提纲作文．

【答案】Dear Jason，
This is Li Hua.I learned from your post that you want to improve your Mandarin.I am more than willing to lend a helping hand to you.
I am convinced I can perfectly meet your expectations.Firstly，I have a good command of Mandarin which is my mother tongue.That means I can offer you authentic advice on language using，both spoken and written.Moreover，I am good at communication and making friends，which makes sure that our learning journey will be very relaxing and enjoyable.
By the way，I do hope you can help me improve my English writing ability，especially on the proper use of vocabulary and some commonly used grammar.Looking forward to your reply and what you think!
                                                                    Yours，
Li Hua