Small color choices are the ones we’re most familiar with. 

They’re the little spots of color like throw pillows, mirrors and baskets that most of us use to add visual interest to our rooms. Less tiring than painting your walls and less expensive than buying a colorful sofa, small color choices bring with them the significant benefit of being easily changeable. 

这是2018年高考英语全国卷Ⅰ阅读理解七选五中的一个小段落。请问句中的 like 是什么词性？是介词吗？为什么后面接动词原形 throw，而不接动名词 throwing？

如果可能的话，请专家老师简单翻译一下这个小段落，不太看得懂！谢谢专家老师！