有两种可能性：

1-将模型的图像路径声明为计算属性。如果你不喜欢，你可以在你的ObjectController 中声明它也支持这个模板：

1- Declare the image path as computed property on your model. If you don't like that, you could declare it also in your ObjectController backing this template:

模板：

// until 1.0 RC7
<img {{bindAttr src="newsItem.imagePath"}}></img> 
// from 1.0 final (the above one is deprecated)
<img {{bind-attr src=newsItem.imagePath}}></img> 

模型：

App.NewsItem = DS.Model.extend({
  imageID: DS.attr('string'),
  imagePath: function() {
    return "/assets/news/"+this.get("imageID")+".jpg";
  }.property('imageID')
});

2-如果你不需要绑定1（我猜你的id不会改变）并使用 unbound helper ，这不会导致脚本标签：

2- If you do not need the binding in 1 (i guess your id won't change) and use the unbound helper, which does not result in script tags:

<img src="news{{unbound newsItem.imageID}}.jpg"></img>