假如你是中学生李华，你的外教John 想推荐你去参加一次以环保为主题的英语演讲比赛，但是最近你母亲生病了，需要你照顾，所以你不得不谢绝。但是你向他推荐了你的好朋友张明参加。请根据以下要点给John写一封信，说明情况：
1.谢绝John的推荐；
2.说明你的理由;
3.推荐张明参加并说明原因。
Thank you very much for your recommendation. It’s a great opportunity to take part in the English Speech Contest. However, I’m afraid that I can’t attend it. My mother has been ill for several days and I have to take care of her in my spare time, so I don’t have enough time to prepare for it.
I strongly recommend my friend Zhang Ming, who I think is the most suitable person to participate in this contest. He is good at English and speak fluent English. Besides, he is a member of the environmentally friendly club and devotes much time to the protection of the environment. I’m sure his good knowledge of environmental protection and perfect spoken English will enable him to achieve success.
Sorry again for my absence.
Best wishes.
假如你是某报纸的一个编辑，现向读者征集专题稿件，议题是关于哪些行为是粗鲁的行为，希望全社会能形成讲文明、懂礼貌的良好风气。请以此为话题，给总编辑写一封信。
Dear Chief Editor,
How are you?
Some rude behaviors like spitting, littering and so on can be seen or experienced by us all in some public places, making us annoyed and uncomfortable.
Such inappropriate public behavior has a negative effect on us. For one thing, spitting and littering are likely to spread germs and diseases. For another, not only do they account for the polluted environment but also show no consideration for it as well.
It is high time that practical measures should be taken to improve this situation. On the one hand, appeal to more people to take action to fight against these immoral conducts. On the other hand, we should realize that nothing is more important than to strengthen people’s awareness about avoiding the rude behavior.
Best wishes!
假定你是李华，一批美国中学生将来你校进行校际交流，你申请成为寄宿家庭之一。请你对美方组织者电子邮件进行回复，以确保申请成功。
Dear Sir,
I’m writing to apply as a Homestay host. Our city has a long history with rich culture. My home has more to offer. Located in a quiet neighborhood which is next to a university, my home is within 10 minutes’ walk from school. Easy access to the subway exit and bus stop provides convenient transportation. Our house is kept clean and tidy. My mother is good at cooking delicious food, including Chinese and Western dishes. On weekends we go mountain-climbing or play all games. Both my parents are kind and hospitable, which will surely make the stay here enjoyable. By the way, I prefer an outgoing boy to make good company.
All the best to you!
假定你是张明，你以前的英国外教Mark虽已回国，但仍一直关心你的学习，而且在你申请牛津大学(Oxford University) 时提供了很多宝贵意见。你刚收到牛津大学的通知书，请你给他写一封电子邮件。
内容主要包括：1.告知已被大学录取；
2.诉说你的苦恼-------听力和口语水平不佳，如何适应全新的生活方式；
3.寻求建议-------是选择住学生宿舍，或是选择寄宿在英国人家里；如何平衡学习和社交活动等等。Dear Mark,
I’m glad to tell you that I’ve received an offer from Oxford University. This means I’m going to go for further study this fall in the UK. After years of hard work, I’ve finally realized my dream of being able to study in the world–famous
