Holidays Heroes（《美国的纪念日》）系列介绍了美国的纪念日、节日，以及与之相关的历史人物、社会事件等，文字简洁生动，图片丰富多样，适合小学生学习历史，了解美国文化，关注社会进步。免费赠送英语朗读音频，地道的英文表达帮助孩子扩充英语词汇量，提高英语阅读能力。 本册Let sCelebrateConstitutionDay（《宪法日》）讲的是有关美国宪法日的知识。每年9月17日是美国的建国者签署宪法的日子，签署宪法并非易事，建国者们经历多次斗争、辩论与妥协才得以保证美国人民至今仍然享有的自由。宪法日也是美国的入籍日。
This spectacular,state-of-art atlas is the ultimate guide to the known Universe.Packed with dazzling images and unbelievable statistics,it also includes maps of everything form our Solar System to the outer edges of space.The oversize, full-colour pages feature: toplgraphical planetary maps breathtaking photos of galactic phenomena cutaway views of comets and meteorites seasomal constellation charts the latest data on space explarts more than 800maps and images
"Animal Adventures: Dinosaurs" will take you on a journey to explore the world of dinosaurs. Have fun while learning and see all of your favorites like you never have before, with colorful illustrations and fascinating facts, and then by building a diorama. Everything you need to delve into the world of dinos is right here. This unique set includes a book full of colorful illustrations and intriguing facts about dinosaurs, plus three-dimensional dinosaur models and a diorama with reusable stickers.Journey to the Age of Dinosaurs to learn everything you need to know about these remarkable creatures. "Animal Adventures: Dinosaurs" offers a unique learning experience as you meet them face-to-face.
