[解析]
(1)细节理解题。根据What you need to know第一段中We have THREE categories in the competition — animals,people and environment (a new category started this year)(我们在比赛中有三个类别﹣﹣﹣动物、人和环境,这是今年开始了一个新的类别)可知,今年的比赛不同于去年的是:拓展了一个新的类别。故选A。
(2)推理判断题。根据What you need to know第二段中We have THREE categories in the competition — animals,people and environment (a new category started this year).You can enter as many categories as you like but just ONE photo per category,please(我们在比赛中有三个类别﹣﹣﹣动物、人和环境,这是今年开始了一个新的类别。您可以为三个类别中的每一个提交一张照片)可知,三个类别中每个类别可以提交一张,所以申请人最多可提交3张照片。故选C。
(3)细节理解题。根据What you need to know第三段中Before you submit your photo,make sure you rename it with your full name and the category you are entering(在提交照片之前,请确保使用您的全名和所输入的类别对其进行重命名)可知,在提交照片之前,必须用全名和类别重命名照片。故选D。