DK Readers: Lego DC Super Heroes: Ready for Action! [平装] [05--09] pdf epub mobi txt 电子书 下载 2025

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☆☆☆☆☆

Dk Publishing 著

图书标签:

• 乐高
• DC超级英雄
• DK Readers
• 儿童读物
• 英文原版
• 平装书
• 益智启蒙
• 阅读分级
• 05-09岁
• 动作冒险

出版社： DK

ISBN：9781465401748

商品编码：19359365

包装：平装

丛书名： DK Readers

出版时间：2013-02-04

页数：32

正文语种：英文

内容简介

In DK LEGO? readers， lively illustrations and engaging age-appropriate stories create a multilevel reading program guaranteed to capture children's interest while developing their reading skills!

DK Readers： Level 1： LEGO? DC Universe? Super Heroes： Heroes in Action

With this superpowered new Level 1 reader， early readers will join in the action and learn all about those heroic LEGO DC Universe Super Heroes!

前言/序言

Title: Unveiling the Mysteries of the Deep: An Illustrated Guide to Marine Biology Introduction The world beneath the waves remains one of Earth's final frontiers, a realm teeming with a bewildering diversity of life forms adapted to environments far removed from our terrestrial existence. This comprehensive volume endeavors to serve as an accessible yet rigorous gateway into the fascinating discipline of marine biology. We aim to illuminate the intricate tapestry of oceanic ecosystems, from the sun-drenched photic zones to the crushing, eternal darkness of the abyssal plains. This book is not merely a catalog of creatures; it is an exploration of the profound biological, chemical, and physical processes that govern life in the world's oceans, emphasizing the interconnectedness that sustains these vital global systems. Part I: The Marine Environment – Physical and Chemical Foundations Understanding marine life necessitates a deep appreciation for the unique setting in which it thrives. The ocean, covering over 70% of our planet’s surface, is characterized by distinct physical and chemical properties that dictate biological potential. Chapter 1: Oceanic Structure and Circulation We begin by mapping the geography of the sea, detailing the bathymetry—the underwater topography shaped by tectonic forces, volcanism, and sedimentation. This includes an examination of continental shelves, slopes, rises, and the vast, enigmatic abyssal plains. Central to marine life are the drivers of oceanic circulation. The text meticulously details the role of wind stress, the Coriolis effect, and thermohaline circulation (the great conveyor belt). We explore the mechanisms of upwelling and downwelling—processes critical for nutrient distribution—and their direct correlation with primary productivity in different ocean basins. Density stratification, influenced by temperature (thermal layers) and salinity (haloclines), creates distinct water masses that dictate species distribution and migration patterns. Chapter 2: The Chemistry of Seawater Seawater is a complex, buffered solution whose chemical composition is remarkably stable yet exquisitely sensitive to environmental change. This section delves into the major and minor constituents of seawater, focusing heavily on the carbonate buffering system. The critical concept of $ ext{pH}$ regulation is examined in detail, providing a necessary foundation for understanding the pervasive issue of ocean acidification. Furthermore, we explore the crucial roles of dissolved gases, particularly oxygen and carbon dioxide, examining their solubility at different temperatures and pressures, and the biological processes (photosynthesis and respiration) that modulate their concentration gradients throughout the water column. Trace elements, essential as micronutrients for phytoplankton, are also surveyed. Chapter 3: Light, Pressure, and Temperature Dynamics Life in the ocean is fundamentally constrained by three physical variables: light penetration, hydrostatic pressure, and temperature variance. Light attenuation through the water column creates distinct zones—the epipelagic (photic), mesopelagic, bathypelagic, and abyssal zones—each supporting specialized communities. We analyze the spectral quality of light available at depth and its influence on visual pigments in deep-sea organisms. Hydrostatic pressure, increasing by one atmosphere for every ten meters of depth, presents formidable biological challenges. The text explores the molecular adaptations required to maintain enzyme function and membrane fluidity under crushing pressure, including the role of piezolytes. Finally, temperature profiles, characterized by the thermocline, are discussed in relation to metabolic rates and the thermal tolerance limits of ectothermic marine fauna. Part II: Primary Production and Ecosystem Dynamics The energy sustaining nearly all marine life originates from microscopic organisms floating near the surface. This section focuses on the base of the marine food web. Chapter 4: Phytoplankton and Primary Productivity Phytoplankton—the microscopic, photosynthetic algae and cyanobacteria—are the primary producers of the oceans. This chapter details the major taxonomic groups, including diatoms, dinoflagellates, coccolithophores, and cyanobacteria (like Prochlorococcus). We explore the limiting factors controlling their growth rates (light, nitrogen, phosphorus, silica) and introduce the concept of the euphotic zone’s carrying capacity. Productivity measurements, employing methods such as the $ ext{C}^{14}$ uptake technique, are described. A detailed examination of harmful algal blooms (HABs), their ecological triggers, and the resultant biotoxins concludes this crucial chapter. Chapter 5: Trophic Structures and Energy Transfer Marine ecosystems are structured by complex feeding relationships. This section transitions from the producers to the consumers. We analyze the structure of pelagic food webs versus benthic food webs. The efficiency of energy transfer between trophic levels—often approximated by the $ ext{10%}$ rule—is discussed, along with the phenomenon of biomagnification of persistent organic pollutants. The roles of zooplankton, the primary grazers, in coupling primary production with higher trophic levels are emphasized. We explore grazing dynamics, selective feeding behaviors, and the importance of microbial loop processes in recycling dissolved organic matter back into the usable food chain. Part III: Major Marine Habitats and Biogeography The ocean is compartmentalized into distinct habitats, each hosting unique evolutionary solutions. Chapter 6: Coastal Ecosystems: Estuaries and Salt Marshes Estuaries—where fresh water meets salt water—are characterized by high productivity but extreme environmental fluctuation (salinity gradients, turbidity). This chapter details the specialized adaptations of marsh grasses (Spartina) and mangroves, which stabilize shorelines and serve as vital nurseries for numerous commercial fish and invertebrate species. We examine nutrient trapping mechanisms unique to these transitional zones and the impact of human alteration on their delicate balance. Chapter 7: Coral Reefs: Oases of Biodiversity Coral reefs are often termed the "rainforests of the sea" due to their extraordinary species richness. The focus here is on the symbiotic relationship between scleractinian corals (animals) and their dinoflagellate symbionts (zooxanthellae). We review the biogeochemical requirements for coral calcification (aragonite saturation state) and the complex architecture of the reef structure. The devastating impacts of coral bleaching, driven by thermal stress, and disease dynamics are treated with scientific rigor. Chapter 8: The Pelagic Realm: Open Ocean Dynamics The open ocean lacks fixed substrate and is characterized by vastness and depth. We categorize the fauna based on their lifestyle: nekton (strong swimmers like fish and mammals), plankton (drifters), and marine snow (falling detritus). Specific attention is given to migratory megafauna, such as tuna, billfish, and pelagic sharks, whose movements span entire ocean basins, linking disparate ecosystems. Chapter 9: The Benthic Realm: Seafloor Communities The benthic environment ranges from shallow, wave-swept intertidal zones to the abyssal plains. Intertidal zonation, governed by tidal range and exposure time, is described. Deeper communities present unique energetic challenges. We dedicate a significant portion to chemosynthetic ecosystems—hydrothermal vents and cold seeps. The revolutionary discovery of life supported entirely by geological energy, utilizing hydrogen sulfide or methane as the primary energy source for primary producers (chemoautotrophic bacteria), is explored alongside the specialized fauna (e.g., giant tube worms, vestimentiferans) that depend upon them. Part IV: Marine Fauna – Adaptations and Diversity This section moves from ecosystem structure to the organisms themselves, highlighting evolutionary solutions. Chapter 10: Invertebrate Diversity: From Sponges to Cephalopods A survey of major invertebrate phyla dominating marine environments is provided. We contrast the simplicity of Porifera (sponges) with the complexity of Mollusca. Particular emphasis is placed on Cephalopods (octopus, squid), examining their advanced camouflage capabilities (chromatophores), complex nervous systems, and jet propulsion mechanics. Adaptations for survival in low-oxygen or high-sediment environments among benthic invertebrates are also analyzed. Chapter 11: Fish Physiology and Sensory Ecology Teleost fishes constitute the largest vertebrate class and exhibit staggering diversity. This chapter covers osmoregulation challenges faced by freshwater, estuarine, and purely marine species (gaining or losing salt). Locomotion is analyzed through hydrodynamics, examining body shape, fin function, and swimming efficiency. Sensory biology is critical: we detail the lateral line system for detecting water movement, the specialized vision of mesopelagic fish (e.g., tubular eyes), and the unique bio-luminescence capabilities used for communication, counter-illumination, and predation. Chapter 12: Marine Mammals and Reptiles: Air-Breathing Survivors Air-breathing vertebrates in the ocean have evolved remarkable physiological solutions for diving. For marine mammals (cetaceans, pinnipeds, sirenians), we examine the storage and efficient utilization of oxygen—including bradycardia (slowing heart rate), peripheral vasoconstriction, and high concentrations of myoglobin. Behavioral ecology, including echolocation in toothed whales and the complex social structures of baleen whales, forms a key component. For sea turtles and marine reptiles, adaptations for long-distance navigation and salt excretion are detailed. Part V: Human Impacts and Conservation The influence of human activity is now pervasive across all oceanic zones. This final section addresses the scientific challenges of protecting marine biodiversity. Chapter 13: Pollution and Contaminants Marine pollution is multi-faceted. We categorize impacts from nutrient loading (eutrophication leading to anoxia), plastic debris (macro- and microplastics), chemical contamination (pesticides, heavy metals), and acoustic pollution. The mechanisms by which persistent organic pollutants (POPs) accumulate in fatty tissues across trophic levels are thoroughly explained, impacting top predators disproportionately. Chapter 14: Overfishing and Ecosystem Collapse The industrial scale of modern fishing constitutes a primary threat to marine populations. We analyze methods of assessing fish stocks, the ecological ramifications of bycatch, and the concept of "fishing down the food web." Trophic cascades resulting from the removal of keystone predators (e.g., sharks, sea otters) are used as case studies illustrating ecosystem instability following overexploitation. Chapter 15: Climate Change and the Future of the Oceans The interconnected threats of rising sea surface temperatures and ocean acidification are examined as the defining environmental challenges of the 21st century. Thermal stress disrupts species ranges and reproductive cycles. Acidification compromises the ability of calcifying organisms (corals, pteropods, bivalves) to build shells and skeletons, threatening the very base of many food webs. The text concludes with a review of contemporary marine protected area (MPA) design, sustainable fisheries management techniques, and cutting-edge research aimed at mitigating these global threats to ensure the long-term viability of the blue planet.

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这本书真的让我大开眼界！我一直对乐高积木情有独钟，但从未想过它们还能组合出如此震撼的DC超级英雄世界。书中的插图栩栩如生，那些由乐高积木搭建的超级英雄们，无论是蝙蝠侠的战车，还是超人的标志性披风，都充满了艺术感和细节。我特别喜欢那些充满动感的画面，仿佛我能听到英雄们战斗时的呐喊声，感受到他们挥洒汗水的力量。这本书的叙事方式也很有趣，虽然我还在学习，但一些简单的词汇和图画的结合，让我能大概理解故事的走向。每次读到关键时刻，我的心都砰砰直跳，非常期待英雄们能战胜邪恶。这本书不仅满足了我对乐高和超级英雄的喜爱，还激发了我对动手搭建的兴趣，我回家后就开始尝试用自己的积木搭建我的专属超级英雄！这本书是我书架上最闪耀的一颗星，我会反复阅读，每一次都能发现新的惊喜！

评分☆☆☆☆☆

哇！这本书简直太棒了，我从来没见过这么酷的乐高DC超级英雄！刚拿到手就迫不及待地翻开了。封面设计就吸引了我，那些超级英雄们看起来都蓄势待发，准备好迎接任何挑战了！我特别喜欢蝙蝠侠，他总是那么神秘又强大。还有超人，他的飞行姿势简直是太帅了！而且，你知道吗？这本书里的乐高积木搭建的超级英雄们，每一个细节都做得那么到位，我感觉就像真的在电影里一样！我一直是个超级英雄迷，尤其喜欢DC的那些英雄，所以这本书对我来说简直是宝藏。我迫不及待想知道他们接下来会做什么，会遇到什么样的反派，又会如何克服困难！里面的文字描述也很生动，虽然我还在努力学习认字，但我能看懂一些简单的词句，而且我妈妈也很喜欢给我读，我们一起沉浸在这个超级英雄的世界里，感觉我们也是他们的一份子，随时准备好一起去拯救世界！这本书让我对乐高和超级英雄的热爱又加深了一层，绝对是我的心头好！

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这本书绝对是我的“超级英雄宝藏”！我一直以来都是乐高积木和DC超级英雄的忠实粉丝，所以当我看到这本书时，简直太兴奋了！书中的乐高DC超级英雄形象简直栩栩如生，每一个细节都处理得非常到位，让我感觉就像看到了真人版的超级英雄一样！我尤其喜欢蝙蝠侠，他的各种酷炫装备和神秘感总是深深吸引我。而且，这本书的图片设计非常有创意，充满了动感和想象力，让我仿佛置身于那些激动人心的战斗场景中。我虽然还在学习认字，但通过书中的图片和家人的朗读，我能感受到那些英雄们为了正义而奋斗的精神，以及他们面对困难时的勇气和决心。这本书让我对乐高和超级英雄的热爱又提升了一个层次，我每天都迫不及待地想翻开它，沉浸在那个充满冒险和奇迹的世界里！

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这本书简直就是为我量身定做的！我从小就对乐高玩具情有独钟，尤其是那些充满力量的超级英雄。当我在书架上看到这本书时，我的眼睛瞬间就亮了！这本书的封面设计就充满了力量感，那些我熟悉又喜爱的DC超级英雄们，以乐高积木的形象出现在我面前，简直太酷了！我迫不及待地翻开，里面的每一页都让我惊叹不已。那些乐高积木搭建的场景，色彩鲜艳，细节丰富，仿佛真的置身于一个超级英雄的冒险世界。虽然我现在的识字量还不大，但通过书中的插图和父母的讲解，我能感受到那种紧张刺激的故事情节。我特别喜欢蝙蝠侠，他总是那么冷静又聪明。这本书不仅让我更加热爱乐高和超级英雄，还激发了我对阅读的兴趣，我希望能通过这本书学到更多的知识，了解更多英雄的故事！

评分☆☆☆☆☆

这本书的出现，简直就是我童年梦想的重现！我一直是个乐高迷，也深深着迷于DC宇宙的英雄们，而这本书巧妙地将两者完美融合，带给我前所未有的阅读体验。每次翻开，我都能感受到那股熟悉的乐高积木的质感，还有那些我无比喜爱的超级英雄，以全新的姿态展现在我面前。我尤其喜欢那些充满想象力的场景设计，仿佛每个角落都隐藏着一个激动人心的故事。书中的文字虽然我还不完全理解，但通过画面和家人的朗读，我能感受到那种紧张刺激的氛围，那些英雄们英勇无畏的身影，以及他们之间为了正义而并肩作战的精神，都深深地感染了我。这本书不仅仅是一本读物，更像是一扇通往奇幻世界的窗口，让我得以窥见那些不为人知的英雄故事，体验那些惊心动魄的冒险。我迫不及待地想把这本书分享给我的小伙伴们，让他们也一起感受这份快乐，一起成为乐高DC超级英雄的忠实粉丝！

评分☆☆☆☆☆

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活动性价比很高，物流快，服务好！

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正版图书，质量好，工艺制图精美，京东实惠，给赞。

评分☆☆☆☆☆

薄薄一本，内容少了点价格一般，挑孩子喜欢的

评分☆☆☆☆☆

内容结合玩具，看看还挺有意思，做活动买买还是比较划算！

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评分☆☆☆☆☆

东西很不错，服务快又好，优惠多多，还会来。

评分☆☆☆☆☆

不错。。。。。。。。。。。。。。。。

评分☆☆☆☆☆

书非常好，比较经典，趁活动购入，价格合算。