阅读广角 Level 3C 生命科学&健康PDF电子书下载

Linking Living Things 2

Before You Read 2

A Spider Worth Sauing 4

Section 1:Living Things Need Food 6

Section 2:Food Chains and Food Webs 10

genre Reading an Encyclopedia Entry 15

After You Read 18

Glossary 22

Food Chains in Action 24

Before You Read 24

The School's Garden 26

Section 1:What Are Food Chains? 28

Section 2:What Are Food Webs? 34

genre Reading an Encyclopedia Entry 37

After You Read 40

Glossary 44

Food Chains and Food Webs 46

Before You Read 46

The Problem with the Pond 48

Section 1:Producers,Consumers,and Decomposers 50

Section 2:The Flow of Energy 55

genre Reading an Encyclopedia Entry 57

After You Read 62

Glossary 66

Help Your Health 68

Before You Read 68

Clean Hands Week 70

Section 1:Personal Hygiene is Important 72

Section 2:Some Diseases Do Not Spread 77

genre Reading a Pamphlet Taking Proper Care ofYour Teeth 80

After You Read 84

Glossary 88

Healthful Habits 90

Before You Read 90

The Checklist 92

Section 1:Preventing Communicable Diseases 94

Section 2:Preventing Noncommunicable Diseases 98

genre Reading a Pamphlet Getting Better 102

After You Read 106

Glossary 110

Good Health and You 112

Before You Read 112

A Public Seruice Announcement 114

Section 1:Communicable Diseases 116

genre Reading a Pamphlet Parasite Problems 118

Section 2:Avoiding Communicable Diseases 120

Section 3:Noncommunicable Diseases 122

Section 4 Avoiding Noncommunicable Diseases 124

After You Read 128

Glossary 132