人们是怎么知道地球是圆的的？你也许会说是哥伦布航海发现的，但其实远在古希腊时期就有了地球是圆的的理论。 从船上的?t望台能看到在甲板上看不到的远方，月相变化，时差的产生，不同地方的人能看到不同的星空等等，这些都表明地球是圆的。 这本英语原版科普绘本提供了丰富有趣的知识，穿越历史，进入太空，启发孩子观察、思考有关地球形状的现象与知识，培养孩子独立思考的精神。 书后有简单的小实验，引导孩子自己动手、观察。

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 sCelebrateMartinLutherKingJr.Day（《马丁 路德 金日》）讲的是有关美国的马丁 路德 金日的知识。美国小孩对马丁 路德 金这位英雄的故事耳熟能详。这本书用孩子能够理解的文字，把金在短暂的人生中所捍卫斗争的价值感以及他给美国带来的变化给小读者娓娓道来。

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 sCelebrateEarthDay（《地球日》）讲的是有关世界地球日的知识。每年4月22日，全世界有超过10亿人会聚集起来关注我们的地球。小读者可以通过本书了解地球日创立的原因，以及为了维护地球的健康，我们可以做哪些小事来为地球带来大变化。

The New York Times bestselling Magic Tree House series has a brand-new paperback! Jack and Annie must rescue pandas after an earthquake in China! Mary Pope Osborne perfectly blends fantasy, adventure, and history in this paperback edition of the bestselling Magic Tree House chapter book. Time-traveling brother-and-sister team Jack and Annie have to find a certain kind of food—the fourth thing needed to save Merlin’s beloved penguin, Penny. The magic tree house whisks them off to a village in the mountains of southeast China, close to a world-famous panda reserve. Will it be their easiest adventure yet? Not a chance! Jack and Annie don’t know it, but they’ve arrived on the day of a historic earthquake! How will Jack and Annie survive when the giant quake strikes? Will they be able to rescue the pandas? And how will they ever get back to the tree house so that they can fulfill their quest to save Penny as well?

Step inside a magnificent 14th century castle and back in time This fully updated edition of Stephen Biesty's Cross-Sections Castle takes you on an illustrated tour of a fully functioning 14th century castle. Explore life within the castle walls with colourful cut-away pictures that give you a unique glimpse of Medieval life. Look at scenes around the castle, from the great hall, the kitchens, to the dungeons and battlements, to see how people lived. Interesting facts about the lives of the inhabitants take you even further in this unique exploration of history.

In a fading town, far from anyone he knew or trusted, a young Lemony Snicket began his apprenticeship in an organization nobody knows about. He started by asking questions that shouldn't have been on his mind. Now he has written an account that should not be published, in four volumes that shouldn't be read. This is the first volume.

Do you smell smoke? Young apprentice Lemony Snicket is investigating a case of arson but soon finds himself enveloped in the ever-increasing mystery that haunts the town of Stain'd-by-the-Sea. Who is setting the fires? What secrets are hidden in the Department of Education? Why are so many schoolchildren in danger? Is it all the work of the notorious villain Hangfire? How could you even ask that? What kind of education have you had?

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。

With this amazing pop-up guide, youngastronomers embark on a spectacular 3-D tour of the solar system,from the infernal surface of the sun to the deepest, darkestreaches of space. They explore each of the solar system’s regionsin detail; discover the planets, comets, and asteroids; experiencethe Apollo 11 lunar landing; hitch a ride on the InternationalSpace Station; and even traverse the dusty red surface of Mars.Filled with engaging and informative text, it’s anout-of-this-world look at the mysteries of space.

One of a new series of books, Read and Discover, designed to encourage children to learn about the world as they learn to read. Follow the twists and turns of the river's story - downhill, through fields and into the city. Where will it end? Non-fiction readers with boy and reluctant reader appeal. Extra fact sections at the back of the books as well as author and illustrator biographies and index. Text and illustrations, which support children learning to read.

Water is all around us; we drink it every day. In this level 3 reader, kids will learn about the water cycle, discovering how rain and snow flow into our lakes, rivers, and oceans, and later evaporate into the sky again. Vivid photography and accessible text make this book an ideal introduction to the science of water.