大堡礁PDF电子书下载

Protecting Sea TurtlesReading Objectives 6

Creatures of the Sea 7

Laying Eggs 10

Life in the Ocean 14

Protecting Sea Turtles 16

Great Barrier Reef 20

Reading Objectives 20

What Is a Coral Reef? 22

Coral Animals 24

Reef Life 26

Look After the Reef 36

Exploring the EvergladesReading Objectives 38

A Wet Wilderness 39

Hiking Through a Swamp 42

Biking with Birds 46

Touring the Islands 52

An Amazing Place 56

SuperCroc 58

Reading Objectives 58

SuperCroc 60

Finding SuperCroc 64

SuperCroc Math 66

How Do Today's Crocodiles Measure Up? 68

Gulp! 70

SuperCroc's Dinner 72

Review Activities 74

Think and Discuss 74

Multiple-Choice Test 76

Index 80