2015年高考作文优秀范文：登山活动

作者有一定功底，可在平时练习中增加长难句的记忆；作者能较熟练地使用高级词汇，但词汇积累还有很大进步空间；文章采用了适当的过渡词和衔接词，结构比较严谨。

No doubt, protecting the environment at an international level is necessary for overcoming environmental problems. The environmental- related issues, such as climate change and ozone depletion, are not limited to some countries but all the countries. So every country should be responsible an cooperation across the border we can better solve the global problems.